prof_utils.c File Reference

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Functions
int	prof_events (int num_tests)
void	prof_print_address (const char *title, const PAPI_exe_info_t *prginfo)
void	prof_print_prof_info (vptr_t start, vptr_t end, int threshold, char *event_name)
void	do_no_profile (int quiet)
void	prof_alloc (int num, unsigned long blength)
int	prof_buckets (int bucket)
void	prof_head (unsigned long blength, int bucket, int num_buckets, const char *header)
void	prof_out (vptr_t start, int n, int bucket, int num_buckets, unsigned int scale)
int	prof_check (int n, int bucket, int num_buckets)
unsigned long	prof_size (unsigned long plength, unsigned scale, int bucket, int *num_buckets)

Variables
long long **	values
char	event_name [PAPI_MAX_STR_LEN]
int	PAPI_event
int	EventSet = PAPI_NULL
void *	profbuf [5]

Function Documentation

do_no_profile()

void do_no_profile

(

int

quiet

)

Definition at line 113 of file prof_utils.c.

{
    int retval;
 
    if ( ( retval = PAPI_start( EventSet ) ) != PAPI_OK )
        test_fail( __FILE__, __LINE__, "PAPI_start", retval );
 
    do_flops( getenv( "NUM_ITERS" ) ? atoi( getenv( "NUM_ITERS" ) ) :
              NUM_ITERS );
 
    if ( ( retval = PAPI_stop( EventSet, values[0] ) ) != PAPI_OK )
        test_fail( __FILE__, __LINE__, "PAPI_stop", retval );
 
    if (!quiet) {
        printf( "Test type   : \t%s\n", "No profiling" );
        printf( TAB1, event_name, ( values[0] )[0] );
        printf( TAB1, "PAPI_TOT_CYC", ( values[0] )[1] );
    }
}

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prof_alloc()

void prof_alloc	(	int	num,
		unsigned long	blength
	)

Definition at line 140 of file prof_utils.c.

{
    int i;
 
    for ( i = 0; i < num; i++ ) {
        profbuf[i] = malloc( blength );
        if ( profbuf[i] == NULL ) {
            test_fail( __FILE__, __LINE__, "malloc", PAPI_ESYS );
        }
        memset( profbuf[i], 0x00, blength );
    }
}

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prof_buckets()

int prof_buckets

(

int

bucket

)

Definition at line 160 of file prof_utils.c.

{
    int bucket_size;
    switch ( bucket ) {
    case PAPI_PROFIL_BUCKET_16:
        bucket_size = sizeof ( short );
        break;
    case PAPI_PROFIL_BUCKET_32:
        bucket_size = sizeof ( int );
        break;
    case PAPI_PROFIL_BUCKET_64:
        bucket_size = sizeof ( unsigned long long );
        break;
    default:
        bucket_size = 0;
        break;
    }
    return ( bucket_size );
}

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prof_check()

int prof_check	(	int	n,
		int	bucket,
		int	num_buckets
	)

Definition at line 272 of file prof_utils.c.

{
    int i, j;
    int retval = 0;
    unsigned short **buf16 = ( unsigned short ** ) profbuf;
    unsigned int **buf32 = ( unsigned int ** ) profbuf;
    unsigned long long **buf64 = ( unsigned long long ** ) profbuf;
 
    switch ( bucket ) {
    case PAPI_PROFIL_BUCKET_16:
        for ( i = 0; i < num_buckets; i++ )
            for ( j = 0; j < n; j++ )
                retval = retval || buf16[j][i];
        break;
    case PAPI_PROFIL_BUCKET_32:
        for ( i = 0; i < num_buckets; i++ )
            for ( j = 0; j < n; j++ )
                retval = retval || buf32[j][i];
        break;
    case PAPI_PROFIL_BUCKET_64:
        for ( i = 0; i < num_buckets; i++ )
            for ( j = 0; j < n; j++ )
                retval = retval || buf64[j][i];
        break;
    }
    return ( retval );
}

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prof_events()

int prof_events

(

int

num_tests

)

Definition at line 42 of file prof_utils.c.

{
    int retval;
    int num_events, mask;
 
    /* add PAPI_TOT_CYC and one of the events in PAPI_FP_INS, PAPI_FP_OPS or
       PAPI_TOT_INS, depends on the availability of the event on the
       platform */
    EventSet = add_two_nonderived_events( &num_events, &PAPI_event, &mask );
 
    if (num_events==0) {
        return 0;
    }
 
    values = allocate_test_space( num_tests, num_events );
 
    retval = PAPI_event_code_to_name( PAPI_event, event_name );
    if (retval != PAPI_OK ) {
        test_fail( __FILE__, __LINE__, "PAPI_event_code_to_name", retval );
    }
 
    return mask;
}

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prof_head()

void prof_head	(	unsigned long	blength,
		int	bucket,
		int	num_buckets,
		const char *	header
	)

Definition at line 183 of file prof_utils.c.

{
    int bucket_size = prof_buckets( bucket );
    printf
        ( "\n------------------------------------------------------------\n" );
    printf( "PAPI_profil() hash table, Bucket size: %d bits.\n",
            bucket_size * 8 );
    printf( "Number of buckets: %d.\nLength of buffer: %ld bytes.\n",
            num_buckets, blength );
    printf( "------------------------------------------------------------\n" );
    printf( "%s\n", header );
}

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prof_out()

void prof_out	(	vptr_t	start,
		int	n,
		int	bucket,
		int	num_buckets,
		unsigned int	scale
	)

Definition at line 202 of file prof_utils.c.

{
    int i, j;
    unsigned short buf_16;
    unsigned int buf_32;
    unsigned long long buf_64;
    unsigned short **buf16 = ( unsigned short ** ) profbuf;
    unsigned int **buf32 = ( unsigned int ** ) profbuf;
    unsigned long long **buf64 = ( unsigned long long ** ) profbuf;
 
    if ( !TESTS_QUIET ) {
        /* printf("%#lx\n",(unsigned long) start + (unsigned long) (2 * i)); */
        /* printf("start: %p; i: %#x; scale: %#x; i*scale: %#x; i*scale >>15: %#x\n", start, i, scale, i*scale, (i*scale)>>15); */
        switch ( bucket ) {
        case PAPI_PROFIL_BUCKET_16:
            for ( i = 0; i < num_buckets; i++ ) {
                for ( j = 0, buf_16 = 0; j < n; j++ )
                    buf_16 |= ( buf16[j] )[i];
                if ( buf_16 ) {
/* On 32bit builds with gcc 4.3 gcc complained about casting vptr_t => long long
 * Thus the unsigned long to long long cast */
                    printf( "%#-16llx",
                        (long long) (unsigned long)start +
                        ( ( ( long long ) i * scale ) >> 15 ) );
                    for ( j = 0, buf_16 = 0; j < n; j++ )
                        printf( "\t%d", ( buf16[j] )[i] );
                    printf( "\n" );
                }
            }
            break;
        case PAPI_PROFIL_BUCKET_32:
            for ( i = 0; i < num_buckets; i++ ) {
                for ( j = 0, buf_32 = 0; j < n; j++ )
                    buf_32 |= ( buf32[j] )[i];
                if ( buf_32 ) {
                    printf( "%#-16llx",
                        (long long) (unsigned long)start +
                        ( ( ( long long ) i * scale ) >> 15 ) );
                    for ( j = 0, buf_32 = 0; j < n; j++ )
                        printf( "\t%d", ( buf32[j] )[i] );
                    printf( "\n" );
                }
            }
            break;
        case PAPI_PROFIL_BUCKET_64:
            for ( i = 0; i < num_buckets; i++ ) {
                for ( j = 0, buf_64 = 0; j < n; j++ )
                    buf_64 |= ( buf64[j] )[i];
                if ( buf_64 ) {
                    printf( "%#-16llx",
                        (long long) (unsigned long)start +
                            ( ( ( long long ) i * scale ) >> 15 ) );
                    for ( j = 0, buf_64 = 0; j < n; j++ )
                        printf( "\t%lld", ( buf64[j] )[i] );
                    printf( "\n" );
                }
            }
            break;
        }
        printf
            ( "------------------------------------------------------------\n\n" );
    }
}

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prof_print_address()

void prof_print_address	(	const char *	title,
		const PAPI_exe_info_t *	prginfo
	)

Definition at line 69 of file prof_utils.c.

{
    printf( "%s\n", title );
    printf
        ( "----------------------------------------------------------------\n" );
    printf( "Text start: %p, Text end: %p, Text length: %#x\n",
            prginfo->address_info.text_start, prginfo->address_info.text_end,
            ( unsigned int ) ( prginfo->address_info.text_end -
                               prginfo->address_info.text_start ) );
    printf( "Data start: %p, Data end: %p\n", prginfo->address_info.data_start,
            prginfo->address_info.data_end );
    printf( "BSS start : %p, BSS end : %p\n", prginfo->address_info.bss_start,
            prginfo->address_info.bss_end );
 
    printf
        ( "----------------------------------------------------------------\n" );
}

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prof_print_prof_info()

void prof_print_prof_info	(	vptr_t	start,
		vptr_t	end,
		int	threshold,
		char *	event_name
	)

Definition at line 93 of file prof_utils.c.

{
    printf( "Profiling event  : %s\n", event_name );
    printf( "Profile Threshold: %d\n", threshold );
    printf( "Profile Iters    : %d\n",
            ( getenv( "NUM_ITERS" ) ? atoi( getenv( "NUM_ITERS" ) ) :
              NUM_ITERS ) );
    printf( "Profile Range    : %p to %p\n", start, end );
    printf
        ( "----------------------------------------------------------------\n" );
    printf( "\n" );
}

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prof_size()

unsigned long prof_size	(	unsigned long	plength,
		unsigned	scale,
		int	bucket,
		int *	num_buckets
	)

Definition at line 310 of file prof_utils.c.

{
    unsigned long blength;
    long long llength = ( ( long long ) plength * scale );
    int bucket_size = prof_buckets( bucket );
    *num_buckets = ( int ) ( llength / 65536 / 2 );
    blength = ( unsigned long ) ( *num_buckets * bucket_size );
    return ( blength );
}

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Variable Documentation

event_name

char event_name[PAPI_MAX_STR_LEN]

Definition at line 30 of file prof_utils.c.

EventSet

int EventSet = PAPI_NULL

Definition at line 32 of file prof_utils.c.

PAPI_event

int PAPI_event

Definition at line 31 of file prof_utils.c.

profbuf

void* profbuf[5]

Definition at line 33 of file prof_utils.c.

values

long long** values

Definition at line 29 of file prof_utils.c.