papi_hl.c File Reference

This file contains the 'high level' interface to PAPI. BASIC is a high level language. ;-) More...

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Data Structures
struct	components_t
struct	local_components_t
struct	reads_t
struct	value_t
struct	regions_t
struct	threads_t
struct	binary_tree_t

Macros
#define	verbose_fprintf    if (verbosity == 1) fprintf
#define	PAPIHL_NUM_OF_COMPONENTS   10
#define	PAPIHL_NUM_OF_EVENTS_PER_COMPONENT   10
#define	PAPIHL_ACTIVE   1
#define	PAPIHL_DEACTIVATED   0
#define	PAPIHL_MAX_STACK_SIZE   10

Enumerations
enum	region_type { REGION_BEGIN , REGION_READ , REGION_END }

Functions
int	compar (const void *l, const void *r)
static void	_internal_hl_library_init (void)
static void	_internal_hl_onetime_library_init (void)
static int	_internal_hl_checkCounter (char *counter)
static int	_internal_hl_determine_rank ()
static char *	_internal_hl_remove_spaces (char *str, int mode)
static int	_internal_hl_determine_default_events ()
static int	_internal_hl_read_user_events ()
static int	_internal_hl_new_component (int component_id, components_t *component)
static int	_internal_hl_add_event_to_component (char *event_name, int event, short event_type, components_t *component)
static int	_internal_hl_create_components ()
static int	_internal_hl_read_events (const char *events)
static int	_internal_hl_create_event_sets ()
static int	_internal_hl_start_counters ()
static int	_internal_hl_region_id_pop ()
static int	_internal_hl_region_id_push ()
static int	_internal_hl_region_id_stack_peak ()
static reads_t *	_internal_hl_insert_read_node (reads_t **head_node)
static int	_internal_hl_add_values_to_region (regions_t *node, enum region_type reg_typ)
static regions_t *	_internal_hl_insert_region_node (regions_t **head_node, const char *region)
static regions_t *	_internal_hl_find_region_node (regions_t *head_node, const char *region)
static threads_t *	_internal_hl_insert_thread_node (unsigned long tid)
static threads_t *	_internal_hl_find_thread_node (unsigned long tid)
static int	_internal_hl_store_counters (unsigned long tid, const char *region, enum region_type reg_typ)
static int	_internal_hl_read_counters ()
static int	_internal_hl_read_and_store_counters (const char *region, enum region_type reg_typ)
static int	_internal_hl_create_global_binary_tree ()
static int	_internal_hl_mkdir (const char *dir)
static int	_internal_hl_determine_output_path ()
static void	_internal_hl_json_line_break_and_indent (FILE *f, bool b, int width)
static void	_internal_hl_json_definitions (FILE *f, bool beautifier)
static void	_internal_hl_json_region_events (FILE *f, bool beautifier, regions_t *regions)
static void	_internal_hl_json_regions (FILE *f, bool beautifier, threads_t *thread_node)
static void	_internal_hl_json_threads (FILE *f, bool beautifier, unsigned long *tids, int threads_num)
static int	_internal_hl_cmpfunc (const void *a, const void *b)
static int	_internal_get_sorted_thread_list (unsigned long **tids, int *threads_num)
static void	_internal_hl_write_json_file (FILE *f, unsigned long *tids, int threads_num)
static void	_internal_hl_read_json_file (const char *path)
static void	_internal_hl_write_output ()
static void	_internal_hl_clean_up_local_data ()
static void	_internal_hl_clean_up_global_data ()
static void	_internal_hl_clean_up_all (bool deactivate)
static int	_internal_hl_check_for_clean_thread_states ()
int	_internal_PAPI_hl_init ()
int	_internal_PAPI_hl_cleanup_thread ()
int	_internal_PAPI_hl_finalize ()
int	_internal_PAPI_hl_set_events (const char *events)
void	_internal_PAPI_hl_print_output ()
static int	_internal_hl_read_user_events (const char *user_events)
int	PAPI_hl_region_begin (const char *region)
int	PAPI_hl_read (const char *region)
int	PAPI_hl_region_end (const char *region)
int	PAPI_hl_stop ()

Variables
components_t *	components = NULL
int	num_of_components = 0
int	max_num_of_components = PAPIHL_NUM_OF_COMPONENTS
int	total_num_events = 0
int	num_of_cleaned_threads = 0
THREAD_LOCAL_STORAGE_KEYWORD local_components_t *	_local_components = NULL
THREAD_LOCAL_STORAGE_KEYWORD long_long	_local_cycles
THREAD_LOCAL_STORAGE_KEYWORD volatile bool	_local_state = PAPIHL_ACTIVE
THREAD_LOCAL_STORAGE_KEYWORD unsigned int	_local_region_begin_cnt = 0
THREAD_LOCAL_STORAGE_KEYWORD unsigned int	_local_region_end_cnt = 0
THREAD_LOCAL_STORAGE_KEYWORD unsigned int	_local_region_id_stack [PAPIHL_MAX_STACK_SIZE]
THREAD_LOCAL_STORAGE_KEYWORD int	_local_region_id_top = -1
binary_tree_t *	binary_tree = NULL
char **	requested_event_names = NULL
int	num_of_requested_events = 0
bool	hl_initiated = false
bool	hl_finalized = false
bool	events_determined = false
bool	output_generated = false
static char *	absolute_output_file_path = NULL
static int	output_counter = 0
short	verbosity = 0
bool	state = PAPIHL_ACTIVE
static int	region_begin_cnt = 0
static int	region_end_cnt = 0
unsigned long	master_thread_id = -1

Detailed Description

Author

Frank Winkler frank.nosp@m..win.nosp@m.kler@.nosp@m.icl..nosp@m.utk.e.nosp@m.du

Philip Mucci mucci.nosp@m.@cs..nosp@m.utk.e.nosp@m.du

Definition in file papi_hl.c.

Macro Definition Documentation

PAPIHL_ACTIVE

#define PAPIHL_ACTIVE   1

Definition at line 44 of file papi_hl.c.

PAPIHL_DEACTIVATED

#define PAPIHL_DEACTIVATED   0

Definition at line 45 of file papi_hl.c.

PAPIHL_MAX_STACK_SIZE

#define PAPIHL_MAX_STACK_SIZE   10

Definition at line 48 of file papi_hl.c.

PAPIHL_NUM_OF_COMPONENTS

#define PAPIHL_NUM_OF_COMPONENTS   10

Definition at line 41 of file papi_hl.c.

PAPIHL_NUM_OF_EVENTS_PER_COMPONENT

#define PAPIHL_NUM_OF_EVENTS_PER_COMPONENT   10

Definition at line 42 of file papi_hl.c.

verbose_fprintf

#define verbose_fprintf    if (verbosity == 1) fprintf

Definition at line 37 of file papi_hl.c.

Enumeration Type Documentation

region_type

enum region_type

Enumerator
REGION_BEGIN
REGION_READ
REGION_END

Definition at line 143 of file papi_hl.c.

{ REGION_BEGIN, REGION_READ, REGION_END };

Function Documentation

_internal_get_sorted_thread_list()

static int _internal_get_sorted_thread_list ( unsigned long **  tids, int *  threads_num  )

static

Definition at line 1416 of file papi_hl.c.

{
   if ( PAPI_list_threads( *tids, threads_num ) != PAPI_OK ) {
      verbose_fprintf(stdout, "PAPI-HL Error: PAPI_list_threads call failed!\n");
      return -1;
   }
   if ( ( *tids = malloc( *(threads_num) * sizeof(unsigned long) ) ) == NULL ) {
      verbose_fprintf(stdout, "PAPI-HL Error: OOM!\n");
      return -1;
   }
   if ( PAPI_list_threads( *tids, threads_num ) != PAPI_OK ) {
      verbose_fprintf(stdout, "PAPI-HL Error: PAPI_list_threads call failed!\n");
      return -1;
   }
 
   /* sort thread ids in ascending order */
   qsort(*tids, *(threads_num), sizeof(unsigned long), _internal_hl_cmpfunc);
   return PAPI_OK;
}

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_internal_hl_add_event_to_component()

static int _internal_hl_add_event_to_component ( char *  event_name, int  event, short  event_type, components_t *  component  )

static

Definition at line 523 of file papi_hl.c.

{
   int i, retval;
 
   /* check if we need to reallocate memory for event_names, event_codes and event_types */
   if ( component->num_of_events == component->max_num_of_events ) {
      component->max_num_of_events *= 2;
 
      component->event_names = (char**)realloc(component->event_names, component->max_num_of_events * sizeof(char*));
      if ( component->event_names == NULL )
         return ( PAPI_ENOMEM );
 
      component->event_codes = (int*)realloc(component->event_codes, component->max_num_of_events * sizeof(int));
      if ( component->event_codes == NULL )
         return ( PAPI_ENOMEM );
 
      component->event_types = (short*)realloc(component->event_types, component->max_num_of_events * sizeof(short));
      if ( component->event_types == NULL )
         return ( PAPI_ENOMEM );
   }
 
   retval = PAPI_add_event( component->EventSet, event );
   if ( retval != PAPI_OK ) {
      const PAPI_component_info_t* cmpinfo;
      cmpinfo = PAPI_get_component_info( component->component_id );
      verbose_fprintf(stdout, "PAPI-HL Warning: Cannot add %s to component %s.\n", event_name, cmpinfo->name);
      verbose_fprintf(stdout, "The following event combination is not supported:\n");
      for ( i = 0; i < component->num_of_events; i++ )
         verbose_fprintf(stdout, "  %s\n", component->event_names[i]);
      verbose_fprintf(stdout, "  %s\n", event_name);
      verbose_fprintf(stdout, "Advice: Use papi_event_chooser to obtain an appropriate event set for this component or set PAPI_MULTIPLEX=1.\n");
 
      return PAPI_EINVAL;
   }
 
   component->event_names[component->num_of_events] = event_name;
   component->event_codes[component->num_of_events] = event;
   component->event_types[component->num_of_events] = event_type;
   component->num_of_events += 1;
 
   total_num_events += 1;
 
   return PAPI_OK;
}

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_internal_hl_add_values_to_region()

static int _internal_hl_add_values_to_region ( regions_t *  node, enum region_type  reg_typ  )

inlinestatic

Definition at line 856 of file papi_hl.c.

{
   int i, j;
   long_long ts;
   int cmp_iter = 2;
 
   /* get timestamp */
   ts = PAPI_get_real_nsec();
 
   if ( reg_typ == REGION_BEGIN ) {
      /* set first fixed counters */
      node->values[0].begin = _local_cycles;
      node->values[1].begin = ts;
      /* events from components */
      for ( i = 0; i < num_of_components; i++ )
         for ( j = 0; j < components[i].num_of_events; j++ )
            node->values[cmp_iter++].begin = _local_components[i].values[j];
   } else if ( reg_typ == REGION_READ ) {
      /* create a new read node and add values*/
      reads_t* read_node;
      if ( ( read_node = _internal_hl_insert_read_node(&node->values[0].read_values) ) == NULL )
         return ( PAPI_ENOMEM );
      read_node->value = _local_cycles - node->values[0].begin;
      if ( ( read_node = _internal_hl_insert_read_node(&node->values[1].read_values) ) == NULL )
         return ( PAPI_ENOMEM );
      read_node->value = ts - node->values[1].begin;
      for ( i = 0; i < num_of_components; i++ ) {
         for ( j = 0; j < components[i].num_of_events; j++ ) {
            if ( ( read_node = _internal_hl_insert_read_node(&node->values[cmp_iter].read_values) ) == NULL )
               return ( PAPI_ENOMEM );
            if ( components[i].event_types[j] == 1 )
               read_node->value = _local_components[i].values[j];
            else
               read_node->value = _local_components[i].values[j] - node->values[cmp_iter].begin;
            cmp_iter++;
         }
      }
   } else if ( reg_typ == REGION_END ) {
      /* determine difference of current value and begin */
      node->values[0].region_value = _local_cycles - node->values[0].begin;
      node->values[1].region_value = ts - node->values[1].begin;
      /* events from components */
      for ( i = 0; i < num_of_components; i++ )
         for ( j = 0; j < components[i].num_of_events; j++ ) {
            /* if event type is instantaneous only save last value */
            if ( components[i].event_types[j] == 1 ) {
               node->values[cmp_iter].region_value = _local_components[i].values[j];
            } else {
               node->values[cmp_iter].region_value = _local_components[i].values[j] - node->values[cmp_iter].begin;
            }
            cmp_iter++;
         }
   }
   return ( PAPI_OK );
}

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_internal_hl_check_for_clean_thread_states()

static int _internal_hl_check_for_clean_thread_states ( )

static

Definition at line 1741 of file papi_hl.c.

{
   EventSetInfo_t *ESI;
   DynamicArray_t *map = &_papi_hwi_system_info.global_eventset_map;
   int i;
 
   for( i = 0; i < map->totalSlots; i++ ) {
      ESI = map->dataSlotArray[i];
      if ( ESI ) {
         if ( ESI->state & PAPI_RUNNING ) 
            return ( PAPI_EISRUN );
      }
   }
   return ( PAPI_OK );
}

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_internal_hl_checkCounter()

static int _internal_hl_checkCounter ( char *  counter )

static

Definition at line 303 of file papi_hl.c.

{
   int EventSet = PAPI_NULL;
   int eventcode;
   int retval;
 
   HLDBG("Counter: %s\n", counter);
   if ( ( retval = PAPI_create_eventset( &EventSet ) ) != PAPI_OK )
      return ( retval );
 
   if ( ( retval = PAPI_event_name_to_code( counter, &eventcode ) ) != PAPI_OK ) {
      HLDBG("Counter %s does not exist\n", counter);
      return ( retval );
   }
 
   if ( ( retval = PAPI_add_event (EventSet, eventcode) ) != PAPI_OK ) {
      HLDBG("Cannot add counter %s\n", counter);
      return ( retval );
   }
 
   if ( ( retval = PAPI_cleanup_eventset (EventSet) ) != PAPI_OK )
      return ( retval );
 
   if ( ( retval = PAPI_destroy_eventset (&EventSet) ) != PAPI_OK )
      return ( retval );
 
   return ( PAPI_OK );
}

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_internal_hl_clean_up_all()

static void _internal_hl_clean_up_all ( bool  deactivate )

static

Definition at line 1688 of file papi_hl.c.

{
   int i, num_of_threads;
 
   /* we assume that output has been already generated or
    * cannot be generated due to previous errors */
   output_generated = true;
 
   /* clean up thread local data */
   if ( _local_state == PAPIHL_ACTIVE ) {
     HLDBG("Clean up thread local data for thread %lu\n", PAPI_thread_id());
     _internal_hl_clean_up_local_data();
   }
 
   /* clean up global data */
   if ( state == PAPIHL_ACTIVE ) {
      _papi_hwi_lock( HIGHLEVEL_LOCK );
      if ( state == PAPIHL_ACTIVE ) {
 
         verbose_fprintf(stdout, "PAPI-HL Info: Output generation is deactivated!\n");
 
         HLDBG("Clean up global data for thread %lu\n", PAPI_thread_id());
         _internal_hl_clean_up_global_data();
 
         /* check if all other registered threads have cleaned up */
         PAPI_list_threads(NULL, &num_of_threads);
 
         HLDBG("Number of registered threads: %d.\n", num_of_threads);
         HLDBG("Number of cleaned threads: %d.\n", num_of_cleaned_threads);
 
         if ( _internal_hl_check_for_clean_thread_states() == PAPI_OK &&
               num_of_threads == num_of_cleaned_threads ) {
            PAPI_shutdown();
            /* clean up components */
            for ( i = 0; i < num_of_components; i++ ) {
               free(components[i].event_names);
               free(components[i].event_codes);
               free(components[i].event_types);
            }
            free(components);
            HLDBG("PAPI-HL shutdown!\n");
         } else {
            verbose_fprintf(stdout, "PAPI-HL Warning: Could not call PAPI_shutdown() since some threads still have running event sets.\n");
         }
 
         /* deactivate PAPI-HL */
         if ( deactivate )
            state = PAPIHL_DEACTIVATED;
      }
      _papi_hwi_unlock( HIGHLEVEL_LOCK );
   }
}

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_internal_hl_clean_up_global_data()

static void _internal_hl_clean_up_global_data ( )

static

Definition at line 1637 of file papi_hl.c.

{
   int i;
   int extended_total_num_events;
 
   /* clean up binary tree of recorded events */
   threads_t *thread_node;
   if ( binary_tree != NULL ) {
      while ( binary_tree->root != NULL ) {
         thread_node = *(threads_t **)binary_tree->root;
 
         /* clean up double linked list of region data */
         regions_t *region = thread_node->value;
         regions_t *tmp;
         while ( region != NULL ) {
 
            /* clean up read node list */
            extended_total_num_events = total_num_events + 2;
            for ( i = 0; i < extended_total_num_events; i++ ) {
               reads_t *read_node = region->values[i].read_values;
               reads_t *read_node_tmp;
               while ( read_node != NULL ) {
                  read_node_tmp = read_node;
                  read_node = read_node->next;
                  free(read_node_tmp);
               }
            }
 
            tmp = region;
            region = region->next;
 
            free(tmp->region);
            free(tmp);
         }
         free(region);
 
         tdelete(thread_node, &binary_tree->root, compar);
         free(thread_node);
      }
   }
 
   /* we cannot free components here since other threads could still use them */
 
   /* clean up requested event names */
   for ( i = 0; i < num_of_requested_events; i++ )
      free(requested_event_names[i]);
   free(requested_event_names);
 
   free(absolute_output_file_path);
}

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_internal_hl_clean_up_local_data()

static void _internal_hl_clean_up_local_data ( )

static

Definition at line 1608 of file papi_hl.c.

{
   int i, retval;
   /* destroy all EventSets from local data */
   if ( _local_components != NULL ) {
      HLDBG("Thread-ID:%lu\n", PAPI_thread_id());
      for ( i = 0; i < num_of_components; i++ ) {
         if ( ( retval = PAPI_stop( _local_components[i].EventSet, _local_components[i].values ) ) != PAPI_OK )
            /* only print error when event set is running */
            if ( retval != -9 )
              verbose_fprintf(stdout, "PAPI-HL Error: PAPI_stop failed: %d.\n", retval);
         if ( ( retval = PAPI_cleanup_eventset (_local_components[i].EventSet) ) != PAPI_OK )
            verbose_fprintf(stdout, "PAPI-HL Error: PAPI_cleanup_eventset failed: %d.\n", retval);
         if ( ( retval = PAPI_destroy_eventset (&_local_components[i].EventSet) ) != PAPI_OK )
            verbose_fprintf(stdout, "PAPI-HL Error: PAPI_destroy_eventset failed: %d.\n", retval);
         free(_local_components[i].values);
      }
      free(_local_components);
      _local_components = NULL;
 
      /* count global thread variable */
      _papi_hwi_lock( HIGHLEVEL_LOCK );
      num_of_cleaned_threads++;
      _papi_hwi_unlock( HIGHLEVEL_LOCK );
   }
   _papi_hl_events_running = 0;
   _local_state = PAPIHL_DEACTIVATED;
}

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_internal_hl_cmpfunc()

static int _internal_hl_cmpfunc ( const void *  a, const void *  b  )

static

Definition at line 1412 of file papi_hl.c.

                                                                {
   return ( *(int*)a - *(int*)b );
}

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_internal_hl_create_components()

static int _internal_hl_create_components ( )

static

Definition at line 569 of file papi_hl.c.

{
   int i, j, retval, event;
   int component_id = -1;
   int comp_index = 0;
   bool component_exists = false;
   short event_type = 0;
 
   HLDBG("Create components\n");
   components = (components_t*)malloc(max_num_of_components * sizeof(components_t));
   if ( components == NULL )
      return ( PAPI_ENOMEM );
 
   for ( i = 0; i < num_of_requested_events; i++ ) {
      /* check if requested event contains event type (instant or delta) */
      const char sep = '=';
      char *ret;
      int index;
      /* search for '=' in event name */
      ret = strchr(requested_event_names[i], sep);
      if (ret) {
         if ( strcmp(ret, "=instant") == 0 )
            event_type = 1;
         else
            event_type = 0;
 
         /* get index of '=' in event name */
         index = (int)(ret - requested_event_names[i]);
         /* remove event type from string if '=instant' or '=delta' */
         if ( (strcmp(ret, "=instant") == 0) || (strcmp(ret, "=delta") == 0) )
            requested_event_names[i][index] = '\0';
      }
 
      /* change event type to instantaneous for specific events */
      /* we consider all nvml events as instantaneous values */
      if( (strstr(requested_event_names[i], "nvml:::") != NULL) ) {
         event_type = 1;
         verbose_fprintf(stdout, "PAPI-HL Info: The event \"%s\" will be stored as instantaneous value.\n", requested_event_names[i]);
      }
 
      /* check if event is supported on current machine */
      retval = _internal_hl_checkCounter(requested_event_names[i]);
      if ( retval != PAPI_OK ) {
         verbose_fprintf(stdout, "PAPI-HL Warning: \"%s\" does not exist or is not supported on this machine.\n", requested_event_names[i]);
      } else {
         /* determine event code and corresponding component id */
         retval = PAPI_event_name_to_code( requested_event_names[i], &event );
         if ( retval != PAPI_OK )
            return ( retval );
         component_id = PAPI_COMPONENT_INDEX( event );
 
         /* check if component_id already exists in global components structure */
         for ( j = 0; j < num_of_components; j++ ) {
            if ( components[j].component_id == component_id ) {
               component_exists = true;
               comp_index = j;
               break;
            }
            else {
               component_exists = false;
            }
         }
 
         /* create new component */
         if ( false == component_exists ) {
            /* check if we need to reallocate memory for components */
            if ( num_of_components == max_num_of_components ) {
               max_num_of_components *= 2;
               components = (components_t*)realloc(components, max_num_of_components * sizeof(components_t));
               if ( components == NULL )
                  return ( PAPI_ENOMEM );
            }
            comp_index = num_of_components;
            retval = _internal_hl_new_component(component_id, &components[comp_index]);
            if ( retval != PAPI_OK )
               return ( retval );
         }
 
         /* add event to current component */
         retval = _internal_hl_add_event_to_component(requested_event_names[i], event, event_type, &components[comp_index]);
         if ( retval == PAPI_ENOMEM )
            return ( retval );
      }
   }
 
   HLDBG("Number of components %d\n", num_of_components);
   if ( num_of_components > 0 )
      verbose_fprintf(stdout, "PAPI-HL Info: Using the following events:\n");
 
   /* destroy all EventSets from global data */
   for ( i = 0; i < num_of_components; i++ ) {
      if ( ( retval = PAPI_cleanup_eventset (components[i].EventSet) ) != PAPI_OK )
         return ( retval );
      if ( ( retval = PAPI_destroy_eventset (&components[i].EventSet) ) != PAPI_OK )
         return ( retval );
      components[i].EventSet = PAPI_NULL;
 
      HLDBG("component_id = %d\n", components[i].component_id);
      HLDBG("num_of_events = %d\n", components[i].num_of_events);
      for ( j = 0; j < components[i].num_of_events; j++ ) {
         HLDBG(" %s type=%d\n", components[i].event_names[j], components[i].event_types[j]);
         verbose_fprintf(stdout, "  %s\n", components[i].event_names[j]);
      }
   }
 
   if ( num_of_components == 0 )
      return PAPI_EINVAL;
 
   return PAPI_OK;
}

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_internal_hl_create_event_sets()

static int _internal_hl_create_event_sets ( )

static

Definition at line 732 of file papi_hl.c.

{
   int i, j, retval;
 
   if ( state == PAPIHL_ACTIVE ) {
      /* allocate memory for local components */
      _local_components = (local_components_t*)malloc(num_of_components * sizeof(local_components_t));
      if ( _local_components == NULL )
         return ( PAPI_ENOMEM );
 
      for ( i = 0; i < num_of_components; i++ ) {
         /* create EventSet */
         _local_components[i].EventSet = PAPI_NULL;
         if ( ( retval = PAPI_create_eventset( &_local_components[i].EventSet ) ) != PAPI_OK ) {
            return (retval );
         }
 
         /* Support multiplexing if user wants to */
         if ( getenv("PAPI_MULTIPLEX") != NULL ) {
 
            /* multiplex only for cpu core events */
            if ( components[i].component_id == 0 ) {
               retval = PAPI_assign_eventset_component(_local_components[i].EventSet, components[i].component_id );
               if ( retval != PAPI_OK ) {
                  verbose_fprintf(stdout, "PAPI-HL Error: PAPI_assign_eventset_component failed.\n");
               } else {
                  if ( PAPI_get_multiplex(_local_components[i].EventSet) == false ) {
                     retval = PAPI_set_multiplex(_local_components[i].EventSet);
                     if ( retval != PAPI_OK ) {
                        verbose_fprintf(stdout, "PAPI-HL Error: PAPI_set_multiplex failed.\n");
                     }
                  }
               }
            }
         }
 
         /* add event to current EventSet */
         for ( j = 0; j < components[i].num_of_events; j++ ) {
            retval = PAPI_add_event( _local_components[i].EventSet, components[i].event_codes[j] );
            if ( retval != PAPI_OK ) {
               return (retval );
            }
         }
         /* allocate memory for return values */
         _local_components[i].values = (long_long*)malloc(components[i].num_of_events * sizeof(long_long));
         if ( _local_components[i].values == NULL )
            return ( PAPI_ENOMEM );
 
      }
      return PAPI_OK;
   }
   return ( PAPI_EMISC );
}

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_internal_hl_create_global_binary_tree()

static int _internal_hl_create_global_binary_tree ( )

static

Definition at line 1095 of file papi_hl.c.

{
   if ( ( binary_tree = (binary_tree_t*)malloc(sizeof(binary_tree_t)) ) == NULL )
      return ( PAPI_ENOMEM );
   binary_tree->root = NULL;
   if ( ( binary_tree->find_p = (threads_t*)malloc(sizeof(threads_t)) ) == NULL )
      return ( PAPI_ENOMEM );
   return ( PAPI_OK );
}

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_internal_hl_determine_default_events()

static int _internal_hl_determine_default_events ( )

static

Definition at line 366 of file papi_hl.c.

{
   int i;
   HLDBG("Default events\n");
   char *default_events[] = {
      "PAPI_TOT_CYC",
   };
   int num_of_defaults = sizeof(default_events) / sizeof(char*);
 
   /* allocate memory for requested events */
   requested_event_names = (char**)malloc(num_of_defaults * sizeof(char*));
   if ( requested_event_names == NULL )
      return ( PAPI_ENOMEM );
 
   /* check if default events are available on the current machine */
   for ( i = 0; i < num_of_defaults; i++ ) {
      if ( _internal_hl_checkCounter( default_events[i] ) == PAPI_OK ) {
         requested_event_names[num_of_requested_events++] = strdup(default_events[i]);
         if ( requested_event_names[num_of_requested_events -1] == NULL )
            return ( PAPI_ENOMEM );
      } 
      else {
         /* if PAPI_FP_OPS is not available try PAPI_SP_OPS or PAPI_DP_OPS */
         if ( strcmp(default_events[i], "PAPI_FP_OPS") == 0 ) {
            if ( _internal_hl_checkCounter( "PAPI_SP_OPS" ) == PAPI_OK )
               requested_event_names[num_of_requested_events++] = strdup("PAPI_SP_OPS");
            else if ( _internal_hl_checkCounter( "PAPI_DP_OPS" ) == PAPI_OK )
               requested_event_names[num_of_requested_events++] = strdup("PAPI_DP_OPS");
         }
 
         /* if PAPI_FP_INS is not available try PAPI_VEC_SP or PAPI_VEC_DP */
         if ( strcmp(default_events[i], "PAPI_FP_INS") == 0 ) {
            if ( _internal_hl_checkCounter( "PAPI_VEC_SP" ) == PAPI_OK )
               requested_event_names[num_of_requested_events++] = strdup("PAPI_VEC_SP");
            else if ( _internal_hl_checkCounter( "PAPI_VEC_DP" ) == PAPI_OK )
               requested_event_names[num_of_requested_events++] = strdup("PAPI_VEC_DP");
         }
      }
   }
 
   return ( PAPI_OK );
}

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_internal_hl_determine_output_path()

static int _internal_hl_determine_output_path ( )

static

Definition at line 1149 of file papi_hl.c.

{
   /* check if PAPI_OUTPUT_DIRECTORY is set */
   char *output_prefix = NULL;
   if ( getenv("PAPI_OUTPUT_DIRECTORY") != NULL ) {
      if ( ( output_prefix = strdup( getenv("PAPI_OUTPUT_DIRECTORY") ) ) == NULL )
         return ( PAPI_ENOMEM );
   } else {
      if ( ( output_prefix = strdup( getcwd(NULL,0) ) ) == NULL )
         return ( PAPI_ENOMEM );
   }
   
   /* generate absolute path for measurement directory */
   if ( ( absolute_output_file_path = (char *)malloc((strlen(output_prefix) + 64) * sizeof(char)) ) == NULL ) {
      free(output_prefix);
      return ( PAPI_ENOMEM );
   }
   if ( output_counter > 0 )
      sprintf(absolute_output_file_path, "%s/papi_hl_output_%d", output_prefix, output_counter);
   else
      sprintf(absolute_output_file_path, "%s/papi_hl_output", output_prefix);
 
   /* check if directory already exists */
   struct stat buf;
   if ( stat(absolute_output_file_path, &buf) == 0 && S_ISDIR(buf.st_mode) ) {
 
      /* rename old directory by adding a timestamp */
      char *new_absolute_output_file_path = NULL;
      if ( ( new_absolute_output_file_path = (char *)malloc((strlen(absolute_output_file_path) + 64) * sizeof(char)) ) == NULL ) {
         free(output_prefix);
         free(absolute_output_file_path);
         return ( PAPI_ENOMEM );
      }
 
      /* create timestamp */
      time_t t = time(NULL);
      struct tm tm = *localtime(&t);
      char m_time[32];
      sprintf(m_time, "%d%02d%02d-%02d%02d%02d", tm.tm_year+1900, tm.tm_mon + 1, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec);
      /* add timestamp to existing folder string */
      sprintf(new_absolute_output_file_path, "%s-%s", absolute_output_file_path, m_time);
 
      uintmax_t current_unix_time = (uintmax_t)t;
      uintmax_t unix_time_from_old_directory = buf.st_mtime;
 
      /* This is a workaround for MPI applications!!!
       * Only rename existing measurement directory when it is older than
       * current timestamp. If it's not, we assume that another MPI process already created a 
       * new measurement directory. */
      if ( unix_time_from_old_directory < current_unix_time ) {
 
         if ( rename(absolute_output_file_path, new_absolute_output_file_path) != 0 ) {
            verbose_fprintf(stdout, "PAPI-HL Warning: Cannot rename old measurement directory.\n");
            verbose_fprintf(stdout, "If you use MPI, another process may have already renamed the directory.\n");
         }
      }
 
      free(new_absolute_output_file_path);
   }
   free(output_prefix);
   output_counter++;
 
   return ( PAPI_OK );
}

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_internal_hl_determine_rank()

static int _internal_hl_determine_rank ( )

static

Definition at line 332 of file papi_hl.c.

{
   int rank = -1;
   /* check environment variables for rank identification */
 
   if ( getenv("OMPI_COMM_WORLD_RANK") != NULL )
      rank = atoi(getenv("OMPI_COMM_WORLD_RANK"));
   else if ( getenv("ALPS_APP_PE") != NULL )
      rank = atoi(getenv("ALPS_APP_PE"));
   else if ( getenv("PMI_RANK") != NULL )
      rank = atoi(getenv("PMI_RANK"));
   else if ( getenv("SLURM_PROCID") != NULL )
      rank = atoi(getenv("SLURM_PROCID"));
 
   return rank;
}

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_internal_hl_find_region_node()

static regions_t * _internal_hl_find_region_node ( regions_t *  head_node, const char *  region  )

inlinestatic

Definition at line 955 of file papi_hl.c.

{
   regions_t* find_node = head_node;
   while ( find_node != NULL ) {
      if ( ((int)find_node->region_id == _internal_hl_region_id_stack_peak()) && (strcmp(find_node->region, region) == 0) ) {
         return find_node;
      }
      find_node = find_node->next;
   }
   find_node = NULL;
   return find_node;
}

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_internal_hl_find_thread_node()

static threads_t * _internal_hl_find_thread_node ( unsigned long  tid )

inlinestatic

Definition at line 979 of file papi_hl.c.

{
   threads_t *find_node = binary_tree->find_p;
   find_node->key = tid;
   void *found = tfind(find_node, &binary_tree->root, compar);
   if ( found != NULL ) {
      find_node = (*(threads_t**)found);
      return find_node;
   }
   return NULL;
}

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_internal_hl_insert_read_node()

static reads_t * _internal_hl_insert_read_node ( reads_t **  head_node )

inlinestatic

Definition at line 834 of file papi_hl.c.

{
   reads_t *new_node;
 
   /* create new region node */
   if ( ( new_node = malloc(sizeof(reads_t)) ) == NULL )
      return ( NULL );
   new_node->next = NULL;
   new_node->prev = NULL;
 
   /* insert node in list */
   if ( *head_node == NULL ) {
      *head_node = new_node;
      return new_node;
   }
   (*head_node)->prev = new_node;
   new_node->next = *head_node;
   *head_node = new_node;
 
   return new_node;
}

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_internal_hl_insert_region_node()

static regions_t * _internal_hl_insert_region_node ( regions_t **  head_node, const char *  region  )

inlinestatic

Definition at line 913 of file papi_hl.c.

{
   regions_t *new_node;
   int i;
   int extended_total_num_events;
 
   /* number of all events including CPU cycles and real time */
   extended_total_num_events = total_num_events + 2;
 
   /* create new region node */
   new_node = malloc(sizeof(regions_t) + extended_total_num_events * sizeof(value_t));
   if ( new_node == NULL )
      return ( NULL );
   new_node->region = (char *)malloc((strlen(region) + 1) * sizeof(char));
   if ( new_node->region == NULL ) {
      free(new_node);
      return ( NULL );
   }
 
   new_node->next = NULL;
   new_node->prev = NULL;
 
   new_node->region_id = _local_region_begin_cnt;
   new_node->parent_region_id = _internal_hl_region_id_stack_peak();
   strcpy(new_node->region, region);
   for ( i = 0; i < extended_total_num_events; i++ ) {
      new_node->values[i].read_values = NULL;
   }
 
   /* insert node in list */
   if ( *head_node == NULL ) {
      *head_node = new_node;
      return new_node;
   }
   (*head_node)->prev = new_node;
   new_node->next = *head_node;
   *head_node = new_node;
 
   return new_node;
}

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_internal_hl_insert_thread_node()

static threads_t * _internal_hl_insert_thread_node ( unsigned long  tid )

inlinestatic

Definition at line 968 of file papi_hl.c.

{
   threads_t *new_node = (threads_t*)malloc(sizeof(threads_t));
   if ( new_node == NULL )
      return ( NULL );
   new_node->key = tid;
   new_node->value = NULL; /* head node of region list */
   tsearch(new_node, &binary_tree->root, compar);
   return new_node;
}

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_internal_hl_json_definitions()

static void _internal_hl_json_definitions ( FILE *  f, bool  beautifier  )

static

Definition at line 1224 of file papi_hl.c.

{
   int num_events, i, j;
 
   _internal_hl_json_line_break_and_indent(f, beautifier, 1);
   fprintf(f, "\"event_definitions\":{");
 
   /* get all events + types */
   num_events = 1;
   for ( i = 0; i < num_of_components; i++ ) {
      for ( j = 0; j < components[i].num_of_events; j++ ) {
         _internal_hl_json_line_break_and_indent(f, beautifier, 2);
 
         const char *event_type = "delta";
         if ( components[i].event_types[j] == 1 )
            event_type = "instant";
         const PAPI_component_info_t* cmpinfo;
         cmpinfo = PAPI_get_component_info( components[i].component_id );
 
         fprintf(f, "\"%s\":{", components[i].event_names[j]);
         _internal_hl_json_line_break_and_indent(f, beautifier, 3);
         fprintf(f, "\"component\":\"%s\",", cmpinfo->name);
         _internal_hl_json_line_break_and_indent(f, beautifier, 3);
         fprintf(f, "\"type\":\"%s\"", event_type);
         _internal_hl_json_line_break_and_indent(f, beautifier, 2);
         fprintf(f, "}");
         if ( num_events < total_num_events )
            fprintf(f, ",");
         num_events++;
      }
   }
 
   _internal_hl_json_line_break_and_indent(f, beautifier, 1);
   fprintf(f, "},");
}

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_internal_hl_json_line_break_and_indent()

static void _internal_hl_json_line_break_and_indent ( FILE *  f, bool  b, int  width  )

static

Definition at line 1214 of file papi_hl.c.

{
   int i;
   if ( b ) {
      fprintf(f, "\n");
      for ( i = 0; i < width; ++i )
         fprintf(f, "  ");
   }
}

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_internal_hl_json_region_events()

static void _internal_hl_json_region_events ( FILE *  f, bool  beautifier, regions_t *  regions  )

static

Definition at line 1260 of file papi_hl.c.

{
   char **all_event_names = NULL;
   int *all_event_types = NULL;
   int extended_total_num_events;
   int i, j, cmp_iter;
 
   /* generate array of all events including CPU cycles and real time for output */
   extended_total_num_events = total_num_events + 2;
   all_event_names = (char**)malloc(extended_total_num_events * sizeof(char*));
   all_event_names[0] = "cycles";
   all_event_names[1] = "real_time_nsec";
 
   all_event_types = (int*)malloc(extended_total_num_events * sizeof(int));
   all_event_types[0] = 0;
   all_event_types[1] = 0;
 
 
   cmp_iter = 2;
   for ( i = 0; i < num_of_components; i++ ) {
      for ( j = 0; j < components[i].num_of_events; j++ ) {
         all_event_names[cmp_iter] = components[i].event_names[j];
         if ( components[i].event_types[j] == 0 )
            all_event_types[cmp_iter] = 0;
         else
            all_event_types[cmp_iter] = 1;
         cmp_iter++;
      }
   }
 
   for ( j = 0; j < extended_total_num_events; j++ ) {
 
      _internal_hl_json_line_break_and_indent(f, beautifier, 5);
 
      /* print read values if available */
      if ( regions->values[j].read_values != NULL) {
         reads_t* read_node = regions->values[j].read_values;
         /* going to last node */
         while ( read_node->next != NULL ) {
            read_node = read_node->next;
         }
         /* read values in reverse order */
         int read_cnt = 1;
         fprintf(f, "\"%s\":{", all_event_names[j]);
 
         _internal_hl_json_line_break_and_indent(f, beautifier, 6);
         fprintf(f, "\"region_value\":\"%lld\",", regions->values[j].region_value);
 
         while ( read_node != NULL ) {
            _internal_hl_json_line_break_and_indent(f, beautifier, 6);
            fprintf(f, "\"read_%d\":\"%lld\"", read_cnt,read_node->value);
 
            read_node = read_node->prev;
 
            if ( read_node == NULL ) {
               _internal_hl_json_line_break_and_indent(f, beautifier, 5);
               fprintf(f, "}");
               if ( j < extended_total_num_events - 1 )
                  fprintf(f, ",");
            } else {
               fprintf(f, ",");
            }
 
            read_cnt++;
         }
      } else {
         HLDBG("  %s:%lld\n", all_event_names[j], regions->values[j].region_value);
         fprintf(f, "\"%s\":\"%lld\"", all_event_names[j], regions->values[j].region_value);
         if ( j < ( extended_total_num_events - 1 ) )
            fprintf(f, ",");
      }
   }
 
   free(all_event_names);
   free(all_event_types);
}

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_internal_hl_json_regions()

static void _internal_hl_json_regions ( FILE *  f, bool  beautifier, threads_t *  thread_node  )

static

Definition at line 1337 of file papi_hl.c.

{
   /* iterate over regions list */
   regions_t *regions = thread_node->value;
 
   /* going to last node */
   while ( regions->next != NULL ) {
      regions = regions->next;
   }
 
   /* read regions in reverse order */
   while (regions != NULL) {
      HLDBG("  Region:%u\n", regions->region_id);
 
      _internal_hl_json_line_break_and_indent(f, beautifier, 4);
      fprintf(f, "\"%u\":{", regions->region_id);
 
      _internal_hl_json_line_break_and_indent(f, beautifier, 5);
      fprintf(f, "\"name\":\"%s\",", regions->region);
      _internal_hl_json_line_break_and_indent(f, beautifier, 5);
      fprintf(f, "\"parent_region_id\":\"%d\",", regions->parent_region_id);
 
      _internal_hl_json_region_events(f, beautifier, regions);
 
      regions = regions->prev;
      _internal_hl_json_line_break_and_indent(f, beautifier, 4);
      if (regions == NULL ) {
         fprintf(f, "}");
      } else {
         fprintf(f, "},");
      }
   }
}

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_internal_hl_json_threads()

static void _internal_hl_json_threads ( FILE *  f, bool  beautifier, unsigned long *  tids, int  threads_num  )

static

Definition at line 1371 of file papi_hl.c.

{
   int i;
 
   _internal_hl_json_line_break_and_indent(f, beautifier, 1);
   fprintf(f, "\"threads\":{");
 
   /* get regions of all threads */
   for ( i = 0; i < threads_num; i++ )
   {
      HLDBG("Thread ID:%lu\n", tids[i]);
      /* find values of current thread in global binary tree */
      threads_t* thread_node = _internal_hl_find_thread_node(tids[i]);
      if ( thread_node != NULL ) {
         /* do we really need the exact thread id? */
         /* we only store iterator id as thread id, not tids[i] */
         _internal_hl_json_line_break_and_indent(f, beautifier, 2);
         fprintf(f, "\"%d\":{", i);
 
         _internal_hl_json_line_break_and_indent(f, beautifier, 3);
         fprintf(f, "\"regions\":{");
 
         _internal_hl_json_regions(f, beautifier, thread_node);
 
         _internal_hl_json_line_break_and_indent(f, beautifier, 3);
         fprintf(f, "}");
 
         _internal_hl_json_line_break_and_indent(f, beautifier, 2);
         if ( i < threads_num - 1 ) {
            fprintf(f, "},");
         } else {
            fprintf(f, "}");
         }
      }
   }
 
   _internal_hl_json_line_break_and_indent(f, beautifier, 1);
   fprintf(f, "}");
 
}

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_internal_hl_library_init()

static void _internal_hl_library_init ( void  )

static

Definition at line 224 of file papi_hl.c.

{
   /* This function is only called by one thread! */
   int retval;
 
   /* check VERBOSE level */
   if ( getenv("PAPI_HL_VERBOSE") != NULL ) {
      verbosity = 1;
   }
 
   if ( ( retval = PAPI_library_init(PAPI_VER_CURRENT) ) != PAPI_VER_CURRENT )
      verbose_fprintf(stdout, "PAPI-HL Error: PAPI_library_init failed!\n");
   
   /* PAPI_thread_init only suceeds if PAPI_library_init has suceeded */
   char *multi_thread = getenv("PAPI_HL_THREAD_MULTIPLE");
   if ( NULL == multi_thread || atoi(multi_thread) == 1 ) {
      retval = PAPI_thread_init(_papi_gettid);
   } else {
      retval = PAPI_thread_init(_papi_getpid);
   }
 
   if (retval == PAPI_OK) {
 
      /* determine output directory and output file */
      if ( ( retval = _internal_hl_determine_output_path() ) != PAPI_OK ) {
         verbose_fprintf(stdout, "PAPI-HL Error: _internal_hl_determine_output_path failed!\n");
         state = PAPIHL_DEACTIVATED;
         verbose_fprintf(stdout, "PAPI-HL Error: PAPI could not be initiated!\n");
      } else {
 
         /* register the termination function for output */
         atexit(_internal_PAPI_hl_print_output);
         verbose_fprintf(stdout, "PAPI-HL Info: PAPI has been initiated!\n");
 
         /* remember thread id */
         master_thread_id = PAPI_thread_id();
         HLDBG("master_thread_id=%lu\n", master_thread_id);
      }
 
      /* Support multiplexing if user wants to */
      if ( getenv("PAPI_MULTIPLEX") != NULL ) {
         retval = PAPI_multiplex_init();
         if ( retval == PAPI_ENOSUPP) {
            verbose_fprintf(stdout, "PAPI-HL Info: Multiplex is not supported!\n");
         } else if ( retval != PAPI_OK ) {
            verbose_fprintf(stdout, "PAPI-HL Error: PAPI_multiplex_init failed!\n");
         } else if ( retval == PAPI_OK ) {
            verbose_fprintf(stdout, "PAPI-HL Info: Multiplex has been initiated!\n");
         }
      }
 
   } else {
      verbose_fprintf(stdout, "PAPI-HL Error: PAPI_thread_init failed!\n");
      state = PAPIHL_DEACTIVATED;
      verbose_fprintf(stdout, "PAPI-HL Error: PAPI could not be initiated!\n");
   }
 
   hl_initiated = true;
}

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_internal_hl_mkdir()

static int _internal_hl_mkdir ( const char *  dir )

static

Definition at line 1106 of file papi_hl.c.

{
   int retval;
   int errno;
   char *tmp = NULL;
   char *p = NULL;
   size_t len;
 
   if ( ( tmp = strdup(dir) ) == NULL )
      return ( PAPI_ENOMEM );
   len = strlen(tmp);
 
   /* check if there is a file with the same name as the ouptut directory */
   struct stat buf;
   if ( stat(dir, &buf) == 0 && S_ISREG(buf.st_mode) ) {
      verbose_fprintf(stdout, "PAPI-HL Error: Name conflict with measurement directory and existing file.\n");
      return ( PAPI_ESYS );
   }
 
   if(tmp[len - 1] == '/')
      tmp[len - 1] = 0;
   for(p = tmp + 1; *p; p++)
   {
      if(*p == '/')
      {
         *p = 0;
         errno = 0;
         retval = mkdir(tmp, S_IRWXU);
         *p = '/';
         if ( retval != 0 && errno != EEXIST ) {
            free(tmp);
            return ( PAPI_ESYS );
         }
      }
   }
   retval = mkdir(tmp, S_IRWXU);
   free(tmp);
   if ( retval != 0 && errno != EEXIST )
      return ( PAPI_ESYS );
 
   return ( PAPI_OK );
}

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_internal_hl_new_component()

static int _internal_hl_new_component ( int  component_id, components_t *  component  )

static

Definition at line 470 of file papi_hl.c.

{
   int retval;
 
   /* create new EventSet */
   component->EventSet = PAPI_NULL;
   if ( ( retval = PAPI_create_eventset( &component->EventSet ) ) != PAPI_OK ) {
      verbose_fprintf(stdout, "PAPI-HL Error: Cannot create EventSet for component %d.\n", component_id);
      return ( retval );
   }
 
   /* Support multiplexing if user wants to */
   if ( getenv("PAPI_MULTIPLEX") != NULL ) {
 
      /* multiplex only for cpu core events */
      if ( component_id == 0 ) {
         retval = PAPI_assign_eventset_component(component->EventSet, component_id);
         if ( retval != PAPI_OK ) {
            verbose_fprintf(stdout, "PAPI-HL Error: PAPI_assign_eventset_component failed.\n");
         } else {
            if ( PAPI_get_multiplex(component->EventSet) == false ) {
               retval = PAPI_set_multiplex(component->EventSet);
               if ( retval != PAPI_OK ) {
                  verbose_fprintf(stdout, "PAPI-HL Error: PAPI_set_multiplex failed.\n");
               }
            }
         }
      }
   }
 
   component->component_id = component_id;
   component->num_of_events = 0;
   component->max_num_of_events = PAPIHL_NUM_OF_EVENTS_PER_COMPONENT;
 
   component->event_names = NULL;
   component->event_names = (char**)malloc(component->max_num_of_events * sizeof(char*));
   if ( component->event_names == NULL )
      return ( PAPI_ENOMEM );
 
   component->event_codes = NULL;
   component->event_codes = (int*)malloc(component->max_num_of_events * sizeof(int));
   if ( component->event_codes == NULL )
      return ( PAPI_ENOMEM );
 
   component->event_types = NULL;
   component->event_types = (short*)malloc(component->max_num_of_events * sizeof(short));
   if ( component->event_types == NULL )
      return ( PAPI_ENOMEM );
 
   num_of_components += 1;
   return ( PAPI_OK );
}

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_internal_hl_onetime_library_init()

static void _internal_hl_onetime_library_init ( void  )

static

Definition at line 284 of file papi_hl.c.

{
   static pthread_once_t library_is_initialized = PTHREAD_ONCE_INIT;
   if ( pthread_once ) {
      /* we assume that PAPI_hl_init() is called from a parallel region */
      pthread_once(&library_is_initialized, _internal_hl_library_init);
      /* wait until first thread has finished */
      int i = 0;
      /* give it 5 seconds in case PAPI_thread_init crashes */
      while ( !hl_initiated && (i++) < 500000 )
         usleep(10);
   } else {
      /* we assume that PAPI_hl_init() is called from a serial application
       * that was not linked against libpthread */
      _internal_hl_library_init();
   }
}

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_internal_hl_read_and_store_counters()

static int _internal_hl_read_and_store_counters ( const char *  region, enum region_type  reg_typ  )

static

Definition at line 1075 of file papi_hl.c.

{
   int retval;
   /* read all events */
   if ( ( retval = _internal_hl_read_counters() ) != PAPI_OK ) {
      verbose_fprintf(stdout, "PAPI-HL Error: Could not read counters for thread %lu.\n", PAPI_thread_id());
      _internal_hl_clean_up_all(true);
      return ( retval );
   }
 
   /* store all events */
   if ( ( retval = _internal_hl_store_counters( PAPI_thread_id(), region, reg_typ) ) != PAPI_OK ) {
      verbose_fprintf(stdout, "PAPI-HL Error: Could not store counters for thread %lu.\n", PAPI_thread_id());
      verbose_fprintf(stdout, "PAPI-HL Advice: Check if your regions are matching.\n");
      _internal_hl_clean_up_all(true);
      return ( retval );
   }
   return ( PAPI_OK );
}

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_internal_hl_read_counters()

static int _internal_hl_read_counters ( )

static

Definition at line 1054 of file papi_hl.c.

{
   int i, j, retval;
   for ( i = 0; i < num_of_components; i++ ) {
      if ( i < ( num_of_components - 1 ) ) {
         retval = PAPI_read( _local_components[i].EventSet, _local_components[i].values);
      } else {
         /* get cycles for last component */
         retval = PAPI_read_ts( _local_components[i].EventSet, _local_components[i].values, &_local_cycles );
      }
      HLDBG("Thread-ID:%lu, Component-ID:%d\n", PAPI_thread_id(), components[i].component_id);
      for ( j = 0; j < components[i].num_of_events; j++ ) {
        HLDBG("Thread-ID:%lu, %s:%lld\n", PAPI_thread_id(), components[i].event_names[j], _local_components[i].values[j]);
      }
 
      if ( retval != PAPI_OK )
         return ( retval );
   }
   return ( PAPI_OK );
}

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_internal_hl_read_events()

static int _internal_hl_read_events ( const char *  events )

static

Definition at line 680 of file papi_hl.c.

{
   int i, retval;
   HLDBG("Read events: %s\n", events);
   if ( events != NULL ) {
      if ( _internal_hl_read_user_events(events) != PAPI_OK )
         if ( ( retval = _internal_hl_determine_default_events() ) != PAPI_OK )
            return ( retval );
 
   /* check if user specified events via environment variable */
   } else if ( getenv("PAPI_EVENTS") != NULL ) {
      char *user_events_from_env = strdup( getenv("PAPI_EVENTS") );
      if ( user_events_from_env == NULL )
         return ( PAPI_ENOMEM );
      /* if string is emtpy use default events */
      if ( strlen( user_events_from_env ) == 0 ) {
         if ( ( retval = _internal_hl_determine_default_events() ) != PAPI_OK ) {
            free(user_events_from_env);
            return ( retval );
         }
      }
      else if ( _internal_hl_read_user_events(user_events_from_env) != PAPI_OK )
         if ( ( retval = _internal_hl_determine_default_events() ) != PAPI_OK ) {
            free(user_events_from_env);
            return ( retval );
         }
      free(user_events_from_env);
   } else {
      if ( ( retval = _internal_hl_determine_default_events() ) != PAPI_OK )
            return ( retval );
   }
 
   /* create components based on requested events */
   if ( _internal_hl_create_components() != PAPI_OK )
   {
      /* requested events do not work at all, use default events */
      verbose_fprintf(stdout, "PAPI-HL Warning: All requested events do not work, using default.\n");
 
      for ( i = 0; i < num_of_requested_events; i++ )
         free(requested_event_names[i]);
      free(requested_event_names);
      num_of_requested_events = 0;
      if ( ( retval = _internal_hl_determine_default_events() ) != PAPI_OK )
         return ( retval );
      if ( ( retval = _internal_hl_create_components() ) != PAPI_OK )
         return ( retval );
   }
 
   events_determined = true;
   return ( PAPI_OK );
}

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_internal_hl_read_json_file()

static void _internal_hl_read_json_file ( const char *  path )

static

Definition at line 1474 of file papi_hl.c.

{
   /* print output to stdout */
   printf("\n\nPAPI-HL Output:\n");
   FILE* output_file = fopen(path, "r");
   int c = fgetc(output_file);
   while (c != EOF)
   {
      printf("%c", c);
      c = fgetc(output_file);
   }
   printf("\n");
   fclose(output_file);
}

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_internal_hl_read_user_events() [1/2]

static int _internal_hl_read_user_events ( )

static

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_internal_hl_read_user_events() [2/2]

static int _internal_hl_read_user_events ( const char *  user_events )

static

Definition at line 409 of file papi_hl.c.

{
   char* user_events_copy;
   const char *separator; //separator for events
   int num_of_req_events = 1; //number of events in string
   int req_event_index = 0; //index of event
   const char *position = NULL; //current position in processed string
   char *token;
   
   HLDBG("User events: %s\n", user_events);
   user_events_copy = strdup(user_events);
   if ( user_events_copy == NULL )
      return ( PAPI_ENOMEM );
 
   /* check if string is not empty */
   if ( strlen( user_events_copy ) > 0 )
   {
      /* count number of separator characters */
      position = user_events_copy;
      separator=",";
      while ( *position ) {
         if ( strchr( separator, *position ) ) {
            num_of_req_events++;
         }
            position++;
      }
 
      /* allocate memory for requested events */
      requested_event_names = (char**)malloc(num_of_req_events * sizeof(char*));
      if ( requested_event_names == NULL ) {
         free(user_events_copy);
         return ( PAPI_ENOMEM );
      }
 
      /* parse list of event names */
      token = strtok( user_events_copy, separator );
      while ( token ) {
         if ( req_event_index >= num_of_req_events ){
            /* more entries as in the first run */
            free(user_events_copy);
            return PAPI_EINVAL;
         }
         requested_event_names[req_event_index] = strdup(_internal_hl_remove_spaces(token, 0));
         if ( requested_event_names[req_event_index] == NULL ) {
            free(user_events_copy);
            return ( PAPI_ENOMEM );
         }
         token = strtok( NULL, separator );
         req_event_index++;
      }
   }
 
   num_of_requested_events = req_event_index;
   free(user_events_copy);
   if ( num_of_requested_events == 0 )
      return PAPI_EINVAL;
 
   HLDBG("Number of requested events: %d\n", num_of_requested_events);
   return ( PAPI_OK );
}

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_internal_hl_region_id_pop()

static int _internal_hl_region_id_pop ( )

static

Definition at line 807 of file papi_hl.c.

                                        {
   if ( _local_region_id_top == -1 ) {
      return PAPI_ENOEVNT;
   } else {
      _local_region_id_top--;
   }
   return PAPI_OK;
}

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_internal_hl_region_id_push()

static int _internal_hl_region_id_push ( )

static

Definition at line 816 of file papi_hl.c.

                                         {
   if ( _local_region_id_top == PAPIHL_MAX_STACK_SIZE ) {
      return PAPI_ENOMEM;
   } else {
      _local_region_id_top++;
      _local_region_id_stack[_local_region_id_top] = _local_region_begin_cnt;
   }
   return PAPI_OK;
}

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_internal_hl_region_id_stack_peak()

static int _internal_hl_region_id_stack_peak ( )

static

Definition at line 826 of file papi_hl.c.

                                               {
   if ( _local_region_id_top == -1 ) {
      return -1;
   } else {
      return _local_region_id_stack[_local_region_id_top];
   }
}

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_internal_hl_remove_spaces()

static char * _internal_hl_remove_spaces ( char *  str, int  mode  )

static

Definition at line 349 of file papi_hl.c.

{
   char *out = str, *put = str;
   for(; *str != '\0'; ++str) {
      if ( mode == 0 ) {
         if(*str != ' ')
            *put++ = *str;
      } else {
         while (*str == ' ' && *(str + 1) == ' ')
            str++;
         *put++ = *str;
      }
   }
   *put = '\0';
   return out;
}

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_internal_hl_start_counters()

static int _internal_hl_start_counters ( )

static

Definition at line 786 of file papi_hl.c.

{
   int i, retval;
   long_long cycles;
 
   if ( state == PAPIHL_ACTIVE ) {
      for ( i = 0; i < num_of_components; i++ ) {
         if ( ( retval = PAPI_start( _local_components[i].EventSet ) ) != PAPI_OK )
            return (retval );
 
         /* warm up PAPI code paths and data structures */
         if ( ( retval = PAPI_read_ts( _local_components[i].EventSet, _local_components[i].values, &cycles ) != PAPI_OK ) ) {
            return (retval );
         }
      }
      _papi_hl_events_running = 1;
      return PAPI_OK;
   }
   return ( PAPI_EMISC );
}

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_internal_hl_store_counters()

static int _internal_hl_store_counters ( unsigned long  tid, const char *  region, enum region_type  reg_typ  )

static

Definition at line 992 of file papi_hl.c.

{
   int retval;
 
   _papi_hwi_lock( HIGHLEVEL_LOCK );
   threads_t* current_thread_node;
 
   /* check if current thread is already stored in tree */
   current_thread_node = _internal_hl_find_thread_node(tid);
   if ( current_thread_node == NULL ) {
      /* insert new node for current thread in tree if type is REGION_BEGIN */
      if ( reg_typ == REGION_BEGIN ) {
         if ( ( current_thread_node = _internal_hl_insert_thread_node(tid) ) == NULL ) {
            _papi_hwi_unlock( HIGHLEVEL_LOCK );
            return ( PAPI_ENOMEM );
         }
      } else {
         _papi_hwi_unlock( HIGHLEVEL_LOCK );
         return ( PAPI_EINVAL );
      }
   }
 
   regions_t* current_region_node;
   if ( reg_typ == REGION_READ || reg_typ == REGION_END ) {
      current_region_node = _internal_hl_find_region_node(current_thread_node->value, region);
      if ( current_region_node == NULL ) {
         if ( reg_typ == REGION_READ ) {
            /* ignore no matching REGION_READ */
            verbose_fprintf(stdout, "PAPI-HL Warning: Cannot find matching region for PAPI_hl_read(\"%s\") for thread id=%lu.\n", region, PAPI_thread_id());
            retval = PAPI_OK;
         } else {
            verbose_fprintf(stdout, "PAPI-HL Warning: Cannot find matching region for PAPI_hl_region_end(\"%s\") for thread id=%lu.\n", region, PAPI_thread_id());
            retval = PAPI_EINVAL;
         }
         _papi_hwi_unlock( HIGHLEVEL_LOCK );
         return ( retval );
      } 
   } else {
      /* create new node for current region in list if type is REGION_BEGIN */
      if ( ( current_region_node = _internal_hl_insert_region_node(&current_thread_node->value, region) ) == NULL ) {
         _papi_hwi_unlock( HIGHLEVEL_LOCK );
         return ( PAPI_ENOMEM );
      }
   }
 
 
   /* add recorded values to current region */
   if ( ( retval = _internal_hl_add_values_to_region( current_region_node, reg_typ ) ) != PAPI_OK ) {
      _papi_hwi_unlock( HIGHLEVEL_LOCK );
      return ( retval );
   }
 
   /* count all REGION_BEGIN and REGION_END calls */
   if ( reg_typ == REGION_BEGIN ) region_begin_cnt++;
   if ( reg_typ == REGION_END ) region_end_cnt++;
 
   _papi_hwi_unlock( HIGHLEVEL_LOCK );
   return ( PAPI_OK );
}

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_internal_hl_write_json_file()

static void _internal_hl_write_json_file ( FILE *  f, unsigned long *  tids, int  threads_num  )

static

Definition at line 1436 of file papi_hl.c.

{
   /* JSON beautifier (line break and indent) */
   bool beautifier = true;
 
   /* start of JSON file */
   fprintf(f, "{");
   _internal_hl_json_line_break_and_indent(f, beautifier, 1);
   fprintf(f, "\"papi_version\":\"%d.%d.%d.%d\",", PAPI_VERSION_MAJOR( PAPI_VERSION ),
      PAPI_VERSION_MINOR( PAPI_VERSION ),
      PAPI_VERSION_REVISION( PAPI_VERSION ),
      PAPI_VERSION_INCREMENT( PAPI_VERSION ) );
 
   /* add some hardware info */
   const PAPI_hw_info_t *hwinfo;
   if ( ( hwinfo = PAPI_get_hardware_info(  ) ) != NULL ) {
      _internal_hl_json_line_break_and_indent(f, beautifier, 1);
      char* cpu_info = _internal_hl_remove_spaces(strdup(hwinfo->model_string), 1);
      fprintf(f, "\"cpu_info\":\"%s\",", cpu_info);
      free(cpu_info);
      _internal_hl_json_line_break_and_indent(f, beautifier, 1);
      fprintf(f, "\"max_cpu_rate_mhz\":\"%d\",", hwinfo->cpu_max_mhz);
      _internal_hl_json_line_break_and_indent(f, beautifier, 1);
      fprintf(f, "\"min_cpu_rate_mhz\":\"%d\",", hwinfo->cpu_min_mhz);
   }
 
   /* write definitions */
   _internal_hl_json_definitions(f, beautifier);
 
   /* write all regions with events per thread */
   _internal_hl_json_threads(f, beautifier, tids, threads_num);
 
   /* end of JSON file */
   _internal_hl_json_line_break_and_indent(f, beautifier, 0);
   fprintf(f, "}");
   fprintf(f, "\n");
}

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_internal_hl_write_output()

static void _internal_hl_write_output ( )

static

Definition at line 1489 of file papi_hl.c.

{
   if ( output_generated == false )
   {
      _papi_hwi_lock( HIGHLEVEL_LOCK );
      if ( output_generated == false ) {
         /* check if events were recorded */
         if ( binary_tree == NULL ) {
            verbose_fprintf(stdout, "PAPI-HL Info: No events were recorded.\n");
            free(absolute_output_file_path);
            return;
         }
 
         if ( region_begin_cnt == region_end_cnt ) {
            verbose_fprintf(stdout, "PAPI-HL Info: Print results...\n");
         } else {
            verbose_fprintf(stdout, "PAPI-HL Warning: Cannot generate output due to not matching regions.\n");
            output_generated = true;
            HLDBG("region_begin_cnt=%d, region_end_cnt=%d\n", region_begin_cnt, region_end_cnt);
            _papi_hwi_unlock( HIGHLEVEL_LOCK );
            free(absolute_output_file_path);
            return;
         }
 
         /* create new measurement directory */
         if ( ( _internal_hl_mkdir(absolute_output_file_path) ) != PAPI_OK ) {
            verbose_fprintf(stdout, "PAPI-HL Error: Cannot create measurement directory %s.\n", absolute_output_file_path);
            free(absolute_output_file_path);
            return;
         }
 
         /* determine rank for output file */
         int rank = _internal_hl_determine_rank();
 
         /* if system does not provide rank id, create a random id */
         if ( rank < 0 ) {
            srandom( time(NULL) + getpid() );
            rank = random() % 1000000;
         }
 
         int unique_output_file_created = 0;
         char *final_absolute_output_file_path = NULL;
         int fd;
         int random_cnt = 0;
 
         /* allocate memory for final output file path */
         if ( ( final_absolute_output_file_path = (char *)malloc((strlen(absolute_output_file_path) + 20) * sizeof(char)) ) == NULL ) {
            verbose_fprintf(stdout, "PAPI-HL Error: Cannot create output file.\n");
            free(absolute_output_file_path);
            free(final_absolute_output_file_path);
            return;
         }
 
         /* create unique output file per process based on rank variable */
         while ( unique_output_file_created == 0 ) {
            rank += random_cnt;
            sprintf(final_absolute_output_file_path, "%s/rank_%06d.json", absolute_output_file_path, rank);
 
            fd = open(final_absolute_output_file_path, O_WRONLY|O_APPEND|O_CREAT|O_NONBLOCK, S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH);
            if ( fd == -1 ) {
               verbose_fprintf(stdout, "PAPI-HL Error: Cannot create output file.\n");
               free(absolute_output_file_path);
               free(final_absolute_output_file_path);
               return;
            }
 
            struct flock filelock;
            filelock.l_type   = F_WRLCK; /* Test for any lock on any part of file. */
            filelock.l_start  = 0;
            filelock.l_whence = SEEK_SET;
            filelock.l_len    = 0;
 
            if ( fcntl(fd, F_SETLK, &filelock) == 0 ) {
               unique_output_file_created = 1;
               free(absolute_output_file_path);
 
               /* write into file */
               FILE *fp = fdopen(fd, "w");
               if ( fp != NULL ) {
                  
                  /* list all threads */
                  unsigned long *tids = NULL;
                  int threads_num;
                  if ( _internal_get_sorted_thread_list(&tids, &threads_num) != PAPI_OK ) {
                     fclose(fp);
                     free(final_absolute_output_file_path);
                     return;
                  }
 
                  /* start writing json output */
                  _internal_hl_write_json_file(fp, tids, threads_num);
                  free(tids);
                  fclose(fp);
 
                  if ( getenv("PAPI_REPORT") != NULL ) {
                     _internal_hl_read_json_file(final_absolute_output_file_path);
                  }
 
               } else {
                  verbose_fprintf(stdout, "PAPI-HL Error: Cannot create output file: %s\n", strerror( errno ));
                  free(final_absolute_output_file_path);
                  fcntl(fd, F_UNLCK, &filelock);
                  return;
               }
               fcntl(fd, F_UNLCK, &filelock);
            } else {
               /* try another file name */
               close(fd);
               random_cnt++;
            }
         }
 
         output_generated = true;
         free(final_absolute_output_file_path);
      }
      _papi_hwi_unlock( HIGHLEVEL_LOCK );
   }
}

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_internal_PAPI_hl_cleanup_thread()

int _internal_PAPI_hl_cleanup_thread

(

)

clean local-thread event sets

Definition at line 1773 of file papi_hl.c.

{
   if ( state == PAPIHL_ACTIVE && 
        hl_initiated == true && 
        _local_state == PAPIHL_ACTIVE ) {
         /* do not clean local data from master thread */
         if ( master_thread_id != PAPI_thread_id() )
           _internal_hl_clean_up_local_data();
         return ( PAPI_OK );
      }
   return ( PAPI_EMISC );
}

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_internal_PAPI_hl_finalize()

int _internal_PAPI_hl_finalize

(

)

shutdown event sets and clear up everything

Definition at line 1786 of file papi_hl.c.

{
   if ( state == PAPIHL_ACTIVE && hl_initiated == true ) {
      _internal_hl_clean_up_all(true);
      return ( PAPI_OK );
   }
   return ( PAPI_EMISC );
}

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_internal_PAPI_hl_init()

int _internal_PAPI_hl_init

(

)

intialize high level library

Definition at line 1758 of file papi_hl.c.

{
   if ( state == PAPIHL_ACTIVE ) {
      if ( hl_initiated == false && hl_finalized == false ) {
         _internal_hl_onetime_library_init();
         /* check if the library has been initialized successfully */
         if ( state == PAPIHL_DEACTIVATED )
            return ( PAPI_EMISC );
         return ( PAPI_OK );
      }
      return ( PAPI_ENOINIT );
   }
   return ( PAPI_EMISC );
}

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_internal_PAPI_hl_print_output()

void _internal_PAPI_hl_print_output

(

)

generate output

Definition at line 1836 of file papi_hl.c.

{
   if ( state == PAPIHL_ACTIVE && 
        hl_initiated == true && 
        output_generated == false ) {
      _internal_hl_write_output();
   }
}

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_internal_PAPI_hl_set_events()

int _internal_PAPI_hl_set_events

(

const char *

events

)

set specfic events to be recorded

Definition at line 1796 of file papi_hl.c.

{
   int retval;
   if ( state == PAPIHL_ACTIVE ) {
 
      /* This may only be called once after the high-level API was successfully
       * initiated. Any second call just returns PAPI_OK without doing an
       * expensive lock. */
      if ( hl_initiated == true ) {
         if ( events_determined == false )
         {
            _papi_hwi_lock( HIGHLEVEL_LOCK );
            if ( events_determined == false && state == PAPIHL_ACTIVE )
            {
               HLDBG("Set events: %s\n", events);
               if ( ( retval = _internal_hl_read_events(events) ) != PAPI_OK ) {
                  state = PAPIHL_DEACTIVATED;
                  _internal_hl_clean_up_global_data();
                  _papi_hwi_unlock( HIGHLEVEL_LOCK );
                  return ( retval );
               }
               if ( ( retval = _internal_hl_create_global_binary_tree() ) != PAPI_OK ) {
                  state = PAPIHL_DEACTIVATED;
                  _internal_hl_clean_up_global_data();
                  _papi_hwi_unlock( HIGHLEVEL_LOCK );
                  return ( retval );
               }
            }
            _papi_hwi_unlock( HIGHLEVEL_LOCK );
         }
      }
      /* in case the first locked thread ran into problems */
      if ( state == PAPIHL_DEACTIVATED)
         return ( PAPI_EMISC );
      return ( PAPI_OK );
   }
   return ( PAPI_EMISC );
}

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compar()

int compar	(	const void *	l,
		const void *	r
	)

Definition at line 123 of file papi_hl.c.

{
   const threads_t *lm = l;
   const threads_t *lr = r;
   return lm->key - lr->key;
}

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Variable Documentation

_local_components

THREAD_LOCAL_STORAGE_KEYWORD local_components_t* _local_components = NULL

Definition at line 79 of file papi_hl.c.

_local_cycles

THREAD_LOCAL_STORAGE_KEYWORD long_long _local_cycles

Definition at line 80 of file papi_hl.c.

_local_region_begin_cnt

THREAD_LOCAL_STORAGE_KEYWORD unsigned int _local_region_begin_cnt = 0

Count each PAPI_hl_region_begin call

Definition at line 82 of file papi_hl.c.

_local_region_end_cnt

THREAD_LOCAL_STORAGE_KEYWORD unsigned int _local_region_end_cnt = 0

Count each PAPI_hl_region_end call

Definition at line 83 of file papi_hl.c.

_local_region_id_stack

THREAD_LOCAL_STORAGE_KEYWORD unsigned int _local_region_id_stack[PAPIHL_MAX_STACK_SIZE]

Definition at line 85 of file papi_hl.c.

_local_region_id_top

THREAD_LOCAL_STORAGE_KEYWORD int _local_region_id_top = -1

Definition at line 86 of file papi_hl.c.

_local_state

THREAD_LOCAL_STORAGE_KEYWORD volatile bool _local_state = PAPIHL_ACTIVE

Definition at line 81 of file papi_hl.c.

absolute_output_file_path

char* absolute_output_file_path = NULL

static

Definition at line 152 of file papi_hl.c.

binary_tree

binary_tree_t* binary_tree = NULL

Definition at line 137 of file papi_hl.c.

components

components_t* components = NULL

Definition at line 62 of file papi_hl.c.

events_determined

bool events_determined = false

Check if events are determined

Definition at line 150 of file papi_hl.c.

hl_finalized

bool hl_finalized = false

Check PAPI-HL has been fininalized

Definition at line 149 of file papi_hl.c.

hl_initiated

bool hl_initiated = false

Check PAPI-HL has been initiated

Definition at line 148 of file papi_hl.c.

master_thread_id

unsigned long master_thread_id = -1

Remember id of master thread

Definition at line 158 of file papi_hl.c.

max_num_of_components

int max_num_of_components = PAPIHL_NUM_OF_COMPONENTS

Definition at line 64 of file papi_hl.c.

num_of_cleaned_threads

int num_of_cleaned_threads = 0

Definition at line 66 of file papi_hl.c.

num_of_components

int num_of_components = 0

Definition at line 63 of file papi_hl.c.

num_of_requested_events

int num_of_requested_events = 0

Definition at line 146 of file papi_hl.c.

output_counter

int output_counter = 0

static

Count each output generation. Not used yet

Definition at line 153 of file papi_hl.c.

output_generated

bool output_generated = false

Check if output has been already generated

Definition at line 151 of file papi_hl.c.

region_begin_cnt

int region_begin_cnt = 0

static

Count each PAPI_hl_region_begin call

Definition at line 156 of file papi_hl.c.

region_end_cnt

int region_end_cnt = 0

static

Count each PAPI_hl_region_end call

Definition at line 157 of file papi_hl.c.

requested_event_names

char** requested_event_names = NULL

Events from user or default

Definition at line 145 of file papi_hl.c.

state

bool state = PAPIHL_ACTIVE

PAPIHL is active until first error or finalization

Definition at line 155 of file papi_hl.c.

total_num_events

int total_num_events = 0

Definition at line 65 of file papi_hl.c.

verbosity

short verbosity = 0

Verbose output is off by default

Definition at line 154 of file papi_hl.c.