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|
/* StarPU --- Runtime system for heterogeneous multicore architectures.
*
* Copyright (C) 2010-2012 Université de Bordeaux 1
* Copyright (C) 2012 Centre National de la Recherche Scientifique
*
* StarPU is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or (at
* your option) any later version.
*
* StarPU is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* See the GNU Lesser General Public License in COPYING.LGPL for more details.
*/
#include "stencil.h"
#include <sys/time.h>
#ifdef STARPU_USE_OPENCL
#include <CL/cl.h>
#include <starpu_opencl.h>
#endif
#ifndef timersub
#define timersub(x, y, res) \
do \
{ \
(res)->tv_sec = (x)->tv_sec - (y)->tv_sec; \
(res)->tv_usec = (x)->tv_usec - (y)->tv_usec; \
if ((res)->tv_usec < 0) \
{ \
(res)->tv_sec--; \
(res)->tv_usec += 1000000; \
} \
} while (0)
#endif
#ifndef timeradd
#define timeradd(x, y, res) \
do \
{ \
(res)->tv_sec = (x)->tv_sec + (y)->tv_sec; \
(res)->tv_usec = (x)->tv_usec + (y)->tv_usec; \
if ((res)->tv_usec >= 1000000) \
{ \
(res)->tv_sec++; \
(res)->tv_usec -= 1000000; \
} \
} while (0)
#endif
/* Computation Kernels */
/*
* There are three codeletets:
*
* - cl_update, which takes a block and the boundaries of its neighbours, loads
* the boundaries into the block and perform some update loops:
*
* comp. buffer save. buffers comp. buffer save. buffers comp. buffer
* | ... |
* | | +------------------+ +------------------+
* | #N+1 | | #N+1 bottom copy====>#N+1 bottom copy |
* +-------------+ +------------------+ +------------------+
* | #N top copy | | #N top copy | | |
* +-------------+ +------------------+ | |
* | #N |
* ...
* | | +----------------+ +----------------------+
* | | | #N bottom copy | | block #N bottom copy |
* ^ +------------------+ +----------------+ +----------------------+
* | | #N-1 top copy <====#N-1 top copy | | block #N-1 |
* | +------------------+ +----------------+ | |
* Z ...
*
* - save_cl_top, which take a block and its top boundary, and saves the top of
* the block into the boundary (to be given as bottom of the neighbour above
* this block).
*
* comp. buffer save. buffers comp. buffer save. buffers comp. buffer
* | ... |
* | | +------------------+ +------------------+
* | #N+1 | | #N+1 bottom copy | | #N+1 bottom copy |
* +-------------+ +------------------+ +------------------+
* | #N top copy | | #N top copy <==== |
* +-------------+ +------------------+ |..................|
* | #N |
* ...
* | | +----------------+ +----------------------+
* | | | #N bottom copy | | block #N bottom copy |
* ^ +------------------+ +----------------+ +----------------------+
* | | #N-1 top copy | | #N-1 top copy | | block #N-1 |
* | +------------------+ +----------------+ | |
* Z ...
*
* - save_cl_bottom, same for the bottom
* comp. buffer save. buffers comp. buffer save. buffers comp. buffer
* | ... |
* | | +------------------+ +------------------+
* | #N+1 | | #N+1 bottom copy | | #N+1 bottom copy |
* +-------------+ +------------------+ +------------------+
* | #N top copy | | #N top copy | | |
* +-------------+ +------------------+ | |
* | #N |
* ...
* |..................| +----------------+ +----------------------+
* | ====>#N bottom copy | | block #N bottom copy |
* ^ +------------------+ +----------------+ +----------------------+
* | | #N-1 top copy | | #N-1 top copy | | block #N-1 |
* | +------------------+ +----------------+ | |
* Z ...
*
* The idea is that the computation buffers thus don't have to move, only their
* boundaries are copied to buffers that do move (be it CPU/GPU, GPU/GPU or via
* MPI)
*
* For each of the buffers above, there are two (0/1) buffers to make new/old switch costless.
*/
#if 0
# define DEBUG(fmt, ...) fprintf(stderr,fmt,##__VA_ARGS__)
#else
# define DEBUG(fmt, ...) (void) 0
#endif
/* Record which GPU ran which block, for nice pictures */
int who_runs_what_len;
int *who_runs_what;
int *who_runs_what_index;
struct timeval *last_tick;
/* Achieved iterations */
static int achieved_iter;
/* Record how many updates each worker performed */
unsigned update_per_worker[STARPU_NMAXWORKERS];
static void record_who_runs_what(struct block_description *block)
{
struct timeval tv, tv2, diff, delta = {.tv_sec = 0, .tv_usec = get_ticks() * 1000};
int workerid = starpu_worker_get_id();
gettimeofday(&tv, NULL);
timersub(&tv, &start, &tv2);
timersub(&tv2, &last_tick[block->bz], &diff);
while (timercmp(&diff, &delta, >=))
{
timeradd(&last_tick[block->bz], &delta, &last_tick[block->bz]);
timersub(&tv2, &last_tick[block->bz], &diff);
if (who_runs_what_index[block->bz] < who_runs_what_len)
who_runs_what[block->bz + (who_runs_what_index[block->bz]++) * get_nbz()] = -1;
}
if (who_runs_what_index[block->bz] < who_runs_what_len)
who_runs_what[block->bz + (who_runs_what_index[block->bz]++) * get_nbz()] = global_workerid(workerid);
}
static void check_load(struct starpu_block_interface *block, struct starpu_block_interface *boundary)
{
/* Sanity checks */
STARPU_ASSERT(block->nx == boundary->nx);
STARPU_ASSERT(block->ny == boundary->ny);
STARPU_ASSERT(boundary->nz == K);
/* NB: this is not fully garanteed ... but it's *very* likely and that
* makes our life much simpler */
STARPU_ASSERT(block->ldy == boundary->ldy);
STARPU_ASSERT(block->ldz == boundary->ldz);
}
/*
* Load a neighbour's boundary into block, CPU version
*/
static void load_subblock_from_buffer_cpu(void *_block,
void *_boundary,
unsigned firstz)
{
struct starpu_block_interface *block = (struct starpu_block_interface *)_block;
struct starpu_block_interface *boundary = (struct starpu_block_interface *)_boundary;
check_load(block, boundary);
/* We do a contiguous memory transfer */
size_t boundary_size = K*block->ldz*block->elemsize;
unsigned offset = firstz*block->ldz;
TYPE *block_data = (TYPE *)block->ptr;
TYPE *boundary_data = (TYPE *)boundary->ptr;
memcpy(&block_data[offset], boundary_data, boundary_size);
}
/*
* Load a neighbour's boundary into block, CUDA version
*/
#ifdef STARPU_USE_CUDA
static void load_subblock_from_buffer_cuda(void *_block,
void *_boundary,
unsigned firstz)
{
struct starpu_block_interface *block = (struct starpu_block_interface *)_block;
struct starpu_block_interface *boundary = (struct starpu_block_interface *)_boundary;
check_load(block, boundary);
/* We do a contiguous memory transfer */
size_t boundary_size = K*block->ldz*block->elemsize;
unsigned offset = firstz*block->ldz;
TYPE *block_data = (TYPE *)block->ptr;
TYPE *boundary_data = (TYPE *)boundary->ptr;
cudaMemcpyAsync(&block_data[offset], boundary_data, boundary_size, cudaMemcpyDeviceToDevice, starpu_cuda_get_local_stream());
}
/*
* cl_update (CUDA version)
*/
static void update_func_cuda(void *descr[], void *arg)
{
struct block_description *block = arg;
int workerid = starpu_worker_get_id();
DEBUG( "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n");
if (block->bz == 0)
fprintf(stderr,"!!! DO update_func_cuda z %d CUDA%d !!!\n", block->bz, workerid);
else
DEBUG( "!!! DO update_func_cuda z %d CUDA%d !!!\n", block->bz, workerid);
#ifdef STARPU_USE_MPI
int rank = 0;
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
DEBUG( "!!! RANK %d !!!\n", rank);
#endif
DEBUG( "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n");
unsigned block_size_z = get_block_size(block->bz);
unsigned i;
update_per_worker[workerid]++;
record_who_runs_what(block);
/*
* Load neighbours' boundaries : TOP
*/
/* The offset along the z axis is (block_size_z + K) */
load_subblock_from_buffer_cuda(descr[0], descr[2], block_size_z+K);
load_subblock_from_buffer_cuda(descr[1], descr[3], block_size_z+K);
/*
* Load neighbours' boundaries : BOTTOM
*/
load_subblock_from_buffer_cuda(descr[0], descr[4], 0);
load_subblock_from_buffer_cuda(descr[1], descr[5], 0);
/*
* Stencils ... do the actual work here :) TODO
*/
for (i=1; i<=K; i++)
{
struct starpu_block_interface *oldb = descr[i%2], *newb = descr[(i+1)%2];
TYPE *old = (void*) oldb->ptr, *newer = (void*) newb->ptr;
/* Shadow data */
cuda_shadow_host(block->bz, old, oldb->nx, oldb->ny, oldb->nz, oldb->ldy, oldb->ldz, i);
/* And perform actual computation */
#ifdef LIFE
cuda_life_update_host(block->bz, old, newer, oldb->nx, oldb->ny, oldb->nz, oldb->ldy, oldb->ldz, i);
#else
cudaMemcpyAsync(newer, old, oldb->nx * oldb->ny * oldb->nz * sizeof(*newer), cudaMemcpyDeviceToDevice, starpu_cuda_get_local_stream());
#endif /* LIFE */
}
cudaError_t cures;
if ((cures = cudaStreamSynchronize(starpu_cuda_get_local_stream())) != cudaSuccess)
STARPU_CUDA_REPORT_ERROR(cures);
if (block->bz == 0)
starpu_top_update_data_integer(starpu_top_achieved_loop, ++achieved_iter);
}
#endif /* STARPU_USE_CUDA */
/*
* Load a neighbour's boundary into block, OpenCL version
*/
#ifdef STARPU_USE_OPENCL
static void load_subblock_from_buffer_opencl(struct starpu_block_interface *block,
struct starpu_block_interface *boundary,
unsigned firstz)
{
check_load(block, boundary);
/* We do a contiguous memory transfer */
size_t boundary_size = K*block->ldz*block->elemsize;
unsigned offset = firstz*block->ldz;
cl_mem block_data = (cl_mem)block->ptr;
cl_mem boundary_data = (cl_mem)boundary->ptr;
cl_event event;
cl_command_queue cq;
starpu_opencl_get_current_queue(&cq);
clEnqueueCopyBuffer(cq, boundary_data, block_data, 0, offset, boundary_size, 0, NULL, &event);
clWaitForEvents(1, &event);
clReleaseEvent(event);
}
/*
* cl_update (OpenCL version)
*/
static void update_func_opencl(void *descr[], void *arg)
{
struct block_description *block = arg;
int workerid = starpu_worker_get_id();
DEBUG( "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n");
if (block->bz == 0)
fprintf(stderr,"!!! DO update_func_opencl z %d OPENCL%d !!!\n", block->bz, workerid);
else
DEBUG( "!!! DO update_func_opencl z %d OPENCL%d !!!\n", block->bz, workerid);
#ifdef STARPU_USE_MPI
int rank = 0;
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
DEBUG( "!!! RANK %d !!!\n", rank);
#endif
DEBUG( "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n");
unsigned block_size_z = get_block_size(block->bz);
unsigned i;
update_per_worker[workerid]++;
record_who_runs_what(block);
cl_command_queue cq;
starpu_opencl_get_current_queue(&cq);
/*
* Load neighbours' boundaries : TOP
*/
/* The offset along the z axis is (block_size_z + K) */
load_subblock_from_buffer_opencl(descr[0], descr[2], block_size_z+K);
load_subblock_from_buffer_opencl(descr[1], descr[3], block_size_z+K);
/*
* Load neighbours' boundaries : BOTTOM
*/
load_subblock_from_buffer_opencl(descr[0], descr[4], 0);
load_subblock_from_buffer_opencl(descr[1], descr[5], 0);
/*
* Stencils ... do the actual work here :) TODO
*/
for (i=1; i<=K; i++)
{
struct starpu_block_interface *oldb = descr[i%2], *newb = descr[(i+1)%2];
TYPE *old = (void*) oldb->ptr, *newer = (void*) newb->ptr;
/* Shadow data */
opencl_shadow_host(block->bz, old, oldb->nx, oldb->ny, oldb->nz, oldb->ldy, oldb->ldz, i);
/* And perform actual computation */
#ifdef LIFE
opencl_life_update_host(block->bz, old, newer, oldb->nx, oldb->ny, oldb->nz, oldb->ldy, oldb->ldz, i);
#else
cl_event event;
clEnqueueCopyBuffer(cq, old, newer, 0, 0, oldb->nx * oldb->ny * oldb->nz * sizeof(*newer), 0, NULL, &event);
clWaitForEvents(1, &event);
clReleaseEvent(event);
#endif /* LIFE */
}
cl_int err;
if ((err = clFinish(cq)))
STARPU_OPENCL_REPORT_ERROR(err);
if (block->bz == 0)
starpu_top_update_data_integer(starpu_top_achieved_loop, ++achieved_iter);
}
#endif /* STARPU_USE_OPENCL */
/*
* cl_update (CPU version)
*/
static void update_func_cpu(void *descr[], void *arg)
{
struct block_description *block = (struct block_description *) arg;
int workerid = starpu_worker_get_id();
DEBUG( "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n");
if (block->bz == 0)
fprintf(stderr,"!!! DO update_func_cpu z %d CPU%d !!!\n", block->bz, workerid);
else
DEBUG( "!!! DO update_func_cpu z %d CPU%d !!!\n", block->bz, workerid);
#ifdef STARPU_USE_MPI
int rank = 0;
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
DEBUG( "!!! RANK %d !!!\n", rank);
#endif
DEBUG( "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n");
unsigned block_size_z = get_block_size(block->bz);
unsigned i;
update_per_worker[workerid]++;
record_who_runs_what(block);
/*
* Load neighbours' boundaries : TOP
*/
/* The offset along the z axis is (block_size_z + K) */
load_subblock_from_buffer_cpu(descr[0], descr[2], block_size_z+K);
load_subblock_from_buffer_cpu(descr[1], descr[3], block_size_z+K);
/*
* Load neighbours' boundaries : BOTTOM
*/
load_subblock_from_buffer_cpu(descr[0], descr[4], 0);
load_subblock_from_buffer_cpu(descr[1], descr[5], 0);
/*
* Stencils ... do the actual work here :) TODO
*/
for (i=1; i<=K; i++)
{
struct starpu_block_interface *oldb = (struct starpu_block_interface *) descr[i%2], *newb = (struct starpu_block_interface *) descr[(i+1)%2];
TYPE *old = (TYPE*) oldb->ptr, *newer = (TYPE*) newb->ptr;
/* Shadow data */
unsigned ldy = oldb->ldy, ldz = oldb->ldz;
unsigned nx = oldb->nx, ny = oldb->ny, nz = oldb->nz;
unsigned x, y, z;
unsigned stepx = 1;
unsigned stepy = 1;
unsigned stepz = 1;
unsigned idx = 0;
unsigned idy = 0;
unsigned idz = 0;
TYPE *ptr = old;
# include "shadow.h"
/* And perform actual computation */
#ifdef LIFE
life_update(block->bz, old, newer, oldb->nx, oldb->ny, oldb->nz, oldb->ldy, oldb->ldz, i);
#else
memcpy(newer, old, oldb->nx * oldb->ny * oldb->nz * sizeof(*newer));
#endif /* LIFE */
}
if (block->bz == 0)
starpu_top_update_data_integer(starpu_top_achieved_loop, ++achieved_iter);
}
/* Performance model and codelet structure */
static struct starpu_perfmodel cl_update_model =
{
.type = STARPU_HISTORY_BASED,
.symbol = "cl_update"
};
struct starpu_codelet cl_update =
{
.where = 0 |
#ifdef STARPU_USE_CUDA
STARPU_CUDA|
#endif
#ifdef STARPU_USE_OPENCL
STARPU_OPENCL|
#endif
STARPU_CPU,
.cpu_funcs = {update_func_cpu, NULL},
#ifdef STARPU_USE_CUDA
.cuda_funcs = {update_func_cuda, NULL},
#endif
#ifdef STARPU_USE_OPENCL
.opencl_funcs = {update_func_opencl, NULL},
#endif
.model = &cl_update_model,
.nbuffers = 6,
.modes = {STARPU_RW, STARPU_RW, STARPU_R, STARPU_R, STARPU_R, STARPU_R}
};
/*
* Save the block internal boundaries to give them to our neighbours.
*/
/* CPU version */
static void load_subblock_into_buffer_cpu(void *_block,
void *_boundary,
unsigned firstz)
{
struct starpu_block_interface *block = (struct starpu_block_interface *)_block;
struct starpu_block_interface *boundary = (struct starpu_block_interface *)_boundary;
check_load(block, boundary);
/* We do a contiguous memory transfer */
size_t boundary_size = K*block->ldz*block->elemsize;
unsigned offset = firstz*block->ldz;
TYPE *block_data = (TYPE *)block->ptr;
TYPE *boundary_data = (TYPE *)boundary->ptr;
memcpy(boundary_data, &block_data[offset], boundary_size);
}
/* CUDA version */
#ifdef STARPU_USE_CUDA
static void load_subblock_into_buffer_cuda(void *_block,
void *_boundary,
unsigned firstz)
{
struct starpu_block_interface *block = (struct starpu_block_interface *)_block;
struct starpu_block_interface *boundary = (struct starpu_block_interface *)_boundary;
check_load(block, boundary);
/* We do a contiguous memory transfer */
size_t boundary_size = K*block->ldz*block->elemsize;
unsigned offset = firstz*block->ldz;
TYPE *block_data = (TYPE *)block->ptr;
TYPE *boundary_data = (TYPE *)boundary->ptr;
cudaMemcpyAsync(boundary_data, &block_data[offset], boundary_size, cudaMemcpyDeviceToDevice, starpu_cuda_get_local_stream());
}
#endif /* STARPU_USE_CUDA */
/* OPENCL version */
#ifdef STARPU_USE_OPENCL
static void load_subblock_into_buffer_opencl(struct starpu_block_interface *block,
struct starpu_block_interface *boundary,
unsigned firstz)
{
check_load(block, boundary);
/* We do a contiguous memory transfer */
size_t boundary_size = K*block->ldz*block->elemsize;
unsigned offset = firstz*block->ldz;
cl_mem block_data = (cl_mem)block->ptr;
cl_mem boundary_data = (cl_mem)boundary->ptr;
cl_command_queue cq;
starpu_opencl_get_current_queue(&cq);
cl_event event;
clEnqueueCopyBuffer(cq, block_data, boundary_data, offset, 0, boundary_size, 0, NULL, &event);
clWaitForEvents(1, &event);
clReleaseEvent(event);
}
#endif /* STARPU_USE_OPENCL */
/* Record how many top/bottom saves each worker performed */
unsigned top_per_worker[STARPU_NMAXWORKERS];
unsigned bottom_per_worker[STARPU_NMAXWORKERS];
/* top save, CPU version */
static void dummy_func_top_cpu(void *descr[] __attribute__((unused)), void *arg)
{
struct block_description *block = (struct block_description *) arg;
int workerid = starpu_worker_get_id();
top_per_worker[workerid]++;
DEBUG( "DO SAVE Bottom block %d\n", block->bz);
/* The offset along the z axis is (block_size_z + K)- K */
unsigned block_size_z = get_block_size(block->bz);
load_subblock_into_buffer_cpu(descr[0], descr[2], block_size_z);
load_subblock_into_buffer_cpu(descr[1], descr[3], block_size_z);
}
/* bottom save, CPU version */
static void dummy_func_bottom_cpu(void *descr[] __attribute__((unused)), void *arg)
{
struct block_description *block = (struct block_description *) arg;
int workerid = starpu_worker_get_id();
bottom_per_worker[workerid]++;
DEBUG( "DO SAVE Top block %d\n", block->bz);
load_subblock_into_buffer_cpu(descr[0], descr[2], K);
load_subblock_into_buffer_cpu(descr[1], descr[3], K);
}
/* top save, CUDA version */
#ifdef STARPU_USE_CUDA
static void dummy_func_top_cuda(void *descr[] __attribute__((unused)), void *arg)
{
struct block_description *block = (struct block_description *) arg;
int workerid = starpu_worker_get_id();
top_per_worker[workerid]++;
DEBUG( "DO SAVE Top block %d\n", block->bz);
/* The offset along the z axis is (block_size_z + K)- K */
unsigned block_size_z = get_block_size(block->bz);
load_subblock_into_buffer_cuda(descr[0], descr[2], block_size_z);
load_subblock_into_buffer_cuda(descr[1], descr[3], block_size_z);
cudaStreamSynchronize(starpu_cuda_get_local_stream());
}
/* bottom save, CUDA version */
static void dummy_func_bottom_cuda(void *descr[] __attribute__((unused)), void *arg)
{
struct block_description *block = (struct block_description *) arg;
int workerid = starpu_worker_get_id();
bottom_per_worker[workerid]++;
DEBUG( "DO SAVE Bottom block %d on CUDA\n", block->bz);
load_subblock_into_buffer_cuda(descr[0], descr[2], K);
load_subblock_into_buffer_cuda(descr[1], descr[3], K);
cudaStreamSynchronize(starpu_cuda_get_local_stream());
}
#endif /* STARPU_USE_CUDA */
/* top save, OpenCL version */
#ifdef STARPU_USE_OPENCL
static void dummy_func_top_opencl(void *descr[] __attribute__((unused)), void *arg)
{
struct block_description *block = (struct block_description *) arg;
int workerid = starpu_worker_get_id();
top_per_worker[workerid]++;
DEBUG( "DO SAVE Top block %d\n", block->bz);
/* The offset along the z axis is (block_size_z + K)- K */
unsigned block_size_z = get_block_size(block->bz);
load_subblock_into_buffer_opencl(descr[0], descr[2], block_size_z);
load_subblock_into_buffer_opencl(descr[1], descr[3], block_size_z);
cl_command_queue cq;
starpu_opencl_get_current_queue(&cq);
clFinish(cq);
}
/* bottom save, OPENCL version */
static void dummy_func_bottom_opencl(void *descr[] __attribute__((unused)), void *arg)
{
struct block_description *block = (struct block_description *) arg;
int workerid = starpu_worker_get_id();
bottom_per_worker[workerid]++;
DEBUG( "DO SAVE Bottom block %d on OPENCL\n", block->bz);
load_subblock_into_buffer_opencl(descr[0], descr[2], K);
load_subblock_into_buffer_opencl(descr[1], descr[3], K);
cl_command_queue cq;
starpu_opencl_get_current_queue(&cq);
clFinish(cq);
}
#endif /* STARPU_USE_OPENCL */
/* Performance models and codelet for save */
static struct starpu_perfmodel save_cl_bottom_model =
{
.type = STARPU_HISTORY_BASED,
.symbol = "save_cl_bottom"
};
static struct starpu_perfmodel save_cl_top_model =
{
.type = STARPU_HISTORY_BASED,
.symbol = "save_cl_top"
};
struct starpu_codelet save_cl_bottom =
{
.where = 0 |
#ifdef STARPU_USE_CUDA
STARPU_CUDA|
#endif
#ifdef STARPU_USE_OPENCL
STARPU_OPENCL|
#endif
STARPU_CPU,
.cpu_funcs = {dummy_func_bottom_cpu, NULL},
#ifdef STARPU_USE_CUDA
.cuda_funcs = {dummy_func_bottom_cuda, NULL},
#endif
#ifdef STARPU_USE_OPENCL
.opencl_funcs = {dummy_func_bottom_opencl, NULL},
#endif
.model = &save_cl_bottom_model,
.nbuffers = 4,
.modes = {STARPU_R, STARPU_R, STARPU_W, STARPU_W}
};
struct starpu_codelet save_cl_top =
{
.where = 0|
#ifdef STARPU_USE_CUDA
STARPU_CUDA|
#endif
#ifdef STARPU_USE_OPENCL
STARPU_OPENCL|
#endif
STARPU_CPU,
.cpu_funcs = {dummy_func_top_cpu, NULL},
#ifdef STARPU_USE_CUDA
.cuda_funcs = {dummy_func_top_cuda, NULL},
#endif
#ifdef STARPU_USE_OPENCL
.opencl_funcs = {dummy_func_top_opencl, NULL},
#endif
.model = &save_cl_top_model,
.nbuffers = 4,
.modes = {STARPU_R, STARPU_R, STARPU_W, STARPU_W}
};
|
