prt_vdp.c File Reference

Virtual Data Processor. More...

#include "prt_vdp.h"

Go to the source code of this file.

Functions
prt_vdp_t *	prt_vdp_new (int *tuple, int counter, prt_vdp_function_t function, size_t local_store_size, int num_inputs, int num_outputs, int color)
	Creates a new VDP. More...
void	prt_vdp_delete (prt_vdp_t *vdp)
	Destroys a VDP. Used for destruction of local VDPs. Destroys all input channels. Destroys all dangling output channels. Local output channels are destroyed as input channels of other local VDPs. More...
void	prt_vdp_annihilate (prt_vdp_t *vdp)
	Annihilates a VDP. Used for complete annihilation of VDPs that don't belong in the node. Destroys all input channels. Destroys all output channels. More...
void	prt_vdp_channel_insert (prt_vdp_t *vdp, prt_channel_t *channel, prt_channel_direction_t direction, int slot)
	Inserts a new channel into a VDP. More...
prt_packet_t *	prt_vdp_packet_new (prt_vdp_t *vdp, size_t size, void *data)
	Creates a new packet. Allocates the size amount of data if a NULL pointer is passed. The size cannot be larger than INT_MAX, because all data typea are packed inside messages of type MPI_BYTE. Calls host constructor or device constructor depending on the VDP's location. More...
prt_packet_t *	prt_vdp_packet_new_host_to_device (prt_vdp_t *vdp, size_t size, void *data)
	Creates a new packet and queues a host-to-device transfer. The size cannot be larger than INT_MAX, because all data typea are packed inside messages of type MPI_BYTE. Expects a non-NULL pointer to the data in host memory. Right now, device memory is allocated immediately. Potentially, it could also be done in the VDP's stream. More...
void	prt_vdp_packet_release (prt_vdp_t *vdp, prt_packet_t *packet)
	Releases a packet. Decrements the number of active references. Destroys the packet when the number of references goes down to zero. For device packets, puts a callback in the VDP's stream. More...
void	prt_vdp_channel_push (prt_vdp_t *vdp, int channel_num, prt_packet_t *packet)
	Pushes a packet in a channel. More...
prt_packet_t *	prt_vdp_channel_pop (prt_vdp_t *vdp, int channel_num)
	Fetches a packet from a channel. More...
void	prt_vdp_channel_off (prt_vdp_t *vdp, int channel_num)
	Deactivates a channel. More...
void	prt_vdp_channel_on (prt_vdp_t *vdp, int channel_num)
	Activates a channel. More...
int	prt_vdp_ready (prt_vdp_t *vdp)
	Checks if a VDP is ready to fire. Only checks established channels. (NULL channels don't prevent firing.) Inactive channels don't precent firing. More...

Detailed Description

Virtual Data Processor.

Author

Jakub Kurzak

PULSAR Runtime http://icl.utk.edu/pulsar/ Copyright (C) 2012-2015 University of Tennessee.

Definition in file prt_vdp.c.

Function Documentation

void prt_vdp_annihilate

(

prt_vdp_t *

vdp)

Annihilates a VDP. Used for complete annihilation of VDPs that don't belong in the node. Destroys all input channels. Destroys all output channels.

Parameters

vdp	– The VDP to annihilate.

Definition at line 152 of file prt_vdp.c.

void prt_vdp_delete

(

prt_vdp_t *

vdp)

Destroys a VDP. Used for destruction of local VDPs. Destroys all input channels. Destroys all dangling output channels. Local output channels are destroyed as input channels of other local VDPs.

Parameters

vdp	– The VDP to destroy.

Definition at line 87 of file prt_vdp.c.

int prt_vdp_ready

(

prt_vdp_t *

vdp)

Checks if a VDP is ready to fire. Only checks established channels. (NULL channels don't prevent firing.) Inactive channels don't precent firing.

Parameters

vdp	– The VDP to check.

Return values

1	if ready.
0	if not ready.

Definition at line 456 of file prt_vdp.c.