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@@ -1,713 +0,0 @@
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-/* StarPU --- Runtime system for heterogeneous multicore architectures.
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- *
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- * Copyright (C) 2012 Inria
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- *
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- * StarPU is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU Lesser General Public License as published by
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- * the Free Software Foundation; either version 2.1 of the License, or (at
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- * your option) any later version.
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- *
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- * StarPU is distributed in the hope that it will be useful, but
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- * WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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- *
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- * See the GNU Lesser General Public License in COPYING.LGPL for more details.
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- */
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-
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-#include <stdio.h>
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-
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-#include <scif.h>
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-
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-#include <starpu.h>
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-#include <starpu_profiling.h>
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-#include <core/sched_policy.h>
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-#include <common/uthash.h>
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-
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-#include <drivers/driver_common/driver_common.h>
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-#include <drivers/mp_common/source_common.h>
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-
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-#include "driver_mic_common.h"
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-#include "driver_mic_source.h"
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-
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-
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-/* Array of structures containing all the informations useful to send
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- * and receive informations with devices */
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-struct _starpu_mp_node *mic_nodes[STARPU_MAXMICDEVS];
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-
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-static COIENGINE handles[STARPU_MAXMICDEVS];
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-
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-/* Structure used by host to store informations about a kernel executable on
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- * a MIC device : its name, and its address on each device.
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- * If a kernel has been initialized, then a lookup has already been achieved and the
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- * device knows how to call it, else the host still needs to do a lookup.
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- */
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-struct _starpu_mic_kernel
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-{
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- UT_hash_handle hh;
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- char *name;
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- starpu_mic_kernel_t func[STARPU_MAXMICDEVS];
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-} *kernels;
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-
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-/* Mutex for concurrent access to the table.
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- */
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-starpu_pthread_mutex_t htbl_mutex = PTHREAD_MUTEX_INITIALIZER;
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-
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-/* Number of MIC worker initialized.
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- */
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-unsigned int nb_mic_worker_init = 0;
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-starpu_pthread_mutex_t nb_mic_worker_init_mutex = PTHREAD_MUTEX_INITIALIZER;
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-
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-/* Returns the ID of the MIC device controlled by the caller.
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- * if the worker doesn't control a MIC device -ENODEV is returned
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- */
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-
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-//static int _starpu_mic_get_devid(void)
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-//{
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-// struct _starpu_machine_config *config = _starpu_get_machine_config();
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-// int workerid = starpu_worker_get_id();
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-//
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-// if (config->workers[workerid].arch != STARPU_MIC_WORKER)
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-// return -ENODEV;
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-//
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-// return config->workers[workerid].devid;
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-//}
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-
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-const struct _starpu_mp_node *_starpu_mic_src_get_actual_thread_mp_node()
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-{
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- struct _starpu_worker *actual_worker = _starpu_get_local_worker_key();
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- STARPU_ASSERT(actual_worker);
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-
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- int nodeid = actual_worker->mp_nodeid;
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- STARPU_ASSERT(nodeid >= 0 && nodeid < STARPU_MAXMICDEVS);
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-
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- return mic_nodes[nodeid];
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-}
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-
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-const struct _starpu_mp_node *_starpu_mic_src_get_mp_node_from_memory_node(int memory_node)
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-{
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- int nodeid = _starpu_memory_node_get_devid(memory_node);
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- STARPU_ASSERT_MSG(nodeid >= 0 && nodeid < STARPU_MAXMICDEVS, "bogus nodeid %d for memory node %d\n", nodeid, memory_node);
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-
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- return mic_nodes[nodeid];
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-}
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-
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-static void _starpu_mic_src_free_kernel(void *kernel)
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-{
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- struct _starpu_mic_kernel *k = kernel;
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-
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- free(k->name);
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- free(kernel);
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-}
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-
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-void _starpu_mic_clear_kernels(void)
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-{
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- struct _starpu_mic_kernel *kernel, *tmp;
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- HASH_ITER(hh, kernels, kernel, tmp)
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- {
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- HASH_DEL(kernels, kernel);
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- free(kernel);
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- }
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-}
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-
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-static int
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-_starpu_mic_src_finalize_job (struct _starpu_job *j, struct _starpu_worker *worker)
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-{
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- uint32_t mask = 0;
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- int profiling = starpu_profiling_status_get();
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- struct timespec codelet_end;
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-
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- _starpu_driver_end_job(worker, j, worker->perf_arch, &codelet_end, 0,
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- profiling);
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-
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- _starpu_driver_update_job_feedback(j, worker, worker->perf_arch,
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- &j->cl_start, &codelet_end,
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- profiling);
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-
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- _starpu_push_task_output (j, mask);
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-
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- _starpu_handle_job_termination(j);
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-
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- return 0;
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-}
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-
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-static int
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-_starpu_mic_src_process_completed_job (struct _starpu_worker_set *workerset)
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-{
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- struct _starpu_mp_node *node = mic_nodes[workerset->workers[0].mp_nodeid];
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- enum _starpu_mp_command answer;
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- void *arg;
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- int arg_size;
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-
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- answer = _starpu_mp_common_recv_command (node, &arg, &arg_size);
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- STARPU_ASSERT (answer == STARPU_EXECUTION_COMPLETED);
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-
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- void *arg_ptr = arg;
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- int coreid;
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-
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- coreid = *(int *) arg_ptr;
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- arg_ptr += sizeof (coreid); // Useless.
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-
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- struct _starpu_worker *worker = &workerset->workers[coreid];
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- struct starpu_task *task = worker->current_task;
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- struct _starpu_job *j = _starpu_get_job_associated_to_task (task);
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-
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- _starpu_mic_src_finalize_job (j, worker);
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-
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- worker->current_task = NULL;
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-
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- return 0;
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-}
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-
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-
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-static int _starpu_mic_src_execute_job(struct _starpu_job *j, struct _starpu_worker *args)
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-{
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- int ret;
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- uint32_t mask = 0;
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-
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- STARPU_ASSERT(j);
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- struct starpu_task *task = j->task;
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-
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- //struct timespec codelet_end;
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-
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- int profiling = starpu_profiling_status_get();
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- unsigned calibrate_model = 0;
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-
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- STARPU_ASSERT(task);
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- struct starpu_codelet *cl = task->cl;
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- STARPU_ASSERT(cl);
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-
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- if (cl->model && cl->model->benchmarking)
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- calibrate_model = 1;
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-
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- ret = _starpu_fetch_task_input(j, mask);
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- if (ret != 0)
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- {
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- /* there was not enough memory, so the input of
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- * the codelet cannot be fetched ... put the
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- * codelet back, and try it later */
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- return -EAGAIN;
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- }
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-
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-
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- starpu_mic_kernel_t kernel = _starpu_mic_src_get_kernel_from_codelet(j->task->cl, j->nimpl);
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-
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- _starpu_driver_start_job (args, j, &j->cl_start, 0, profiling);
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-
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- _starpu_src_common_execute_kernel_from_task(mic_nodes[args->mp_nodeid],
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- (void (*)(void)) kernel, args->devid, task);
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-
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- return 0;
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-}
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-
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-int _starpu_mic_src_register_kernel(starpu_mic_func_symbol_t *symbol, const char *func_name)
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-{
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- unsigned int func_name_size = (strlen(func_name) + 1) * sizeof(char);
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-
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- STARPU_PTHREAD_MUTEX_LOCK(&htbl_mutex);
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- struct _starpu_mic_kernel *kernel;
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-
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- HASH_FIND_STR(kernels, func_name, kernel);
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-
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- if (kernel != NULL)
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- {
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- STARPU_PTHREAD_MUTEX_UNLOCK(&htbl_mutex);
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- // Function already in the table.
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- *symbol = kernel;
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- return 0;
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- }
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-
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- kernel = malloc(sizeof(*kernel));
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- if (kernel == NULL)
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- {
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- STARPU_PTHREAD_MUTEX_UNLOCK(&htbl_mutex);
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- return -ENOMEM;
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- }
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-
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- kernel->name = malloc(func_name_size);
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- if (kernel->name == NULL)
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- {
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- STARPU_PTHREAD_MUTEX_UNLOCK(&htbl_mutex);
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- free(kernel);
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- return -ENOMEM;
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- }
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-
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- memcpy(kernel->name, func_name, func_name_size);
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-
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- HASH_ADD_STR(kernels, name, kernel);
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-
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- unsigned int nb_mic_devices = _starpu_mic_src_get_device_count();
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- unsigned int i;
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- for (i = 0; i < nb_mic_devices; ++i)
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- kernel->func[i] = NULL;
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-
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- STARPU_PTHREAD_MUTEX_UNLOCK(&htbl_mutex);
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-
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- *symbol = kernel;
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-
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- return 0;
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-}
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-
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-starpu_mic_kernel_t _starpu_mic_src_get_kernel(starpu_mic_func_symbol_t symbol)
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-{
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- int workerid = starpu_worker_get_id();
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- /* This function has to be called in the codelet only, by the thread
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- * which will handle the task */
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- if (workerid < 0)
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- return NULL;
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-
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- int nodeid = starpu_worker_get_mp_nodeid(workerid);
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-
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- struct _starpu_mic_kernel *kernel = symbol;
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-
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- if (kernel->func[nodeid] == NULL)
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- {
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- struct _starpu_mp_node *node = mic_nodes[nodeid];
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- int ret = _starpu_src_common_lookup(node, (void (**)(void))&kernel->func[nodeid], kernel->name);
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- if (ret)
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- return NULL;
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- }
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-
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- return kernel->func[nodeid];
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-}
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-
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-/* Report an error which occured when using a MIC device
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- * and print this error in a human-readable style.
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- * It hanbles errors occuring when using COI.
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- */
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-
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-void _starpu_mic_src_report_coi_error(const char *func, const char *file,
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- const int line, const COIRESULT status)
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-{
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- const char *errormsg = COIResultGetName(status);
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- printf("SRC: oops in %s (%s:%u)... %d: %s \n", func, file, line, status, errormsg);
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- STARPU_ASSERT(0);
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-}
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-
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-/* Report an error which occured when using a MIC device
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- * and print this error in a human-readable style.
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- * It hanbles errors occuring when using SCIF.
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- */
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-
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-void _starpu_mic_src_report_scif_error(const char *func, const char *file, const int line, const int status)
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-{
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- const char *errormsg = strerror(status);
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- printf("SRC: oops in %s (%s:%u)... %d: %s \n", func, file, line, status, errormsg);
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- STARPU_ASSERT(0);
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-}
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-
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-/* Return the number of MIC devices in the system.
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- * If the number of devices is already known, we use the cached value
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- * without calling again COI. */
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-
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-unsigned _starpu_mic_src_get_device_count(void)
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-{
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- static unsigned short cached = 0;
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- static unsigned nb_devices = 0;
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-
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- /* We don't need to call the COI API again if we already
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- * have the result in cache */
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- if (!cached)
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- {
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- COIRESULT res;
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- res = COIEngineGetCount(COI_ISA_MIC, &nb_devices);
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-
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- /* If something is wrong with the COI engine, we shouldn't
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- * use MIC devices (if there is any...) */
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- if (res != COI_SUCCESS)
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- nb_devices = 0;
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-
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- cached = 1;
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- }
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-
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- return nb_devices;
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-}
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-
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-unsigned starpu_mic_device_get_count(void)
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-{
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- // Return the number of configured MIC devices.
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- struct _starpu_machine_config *config = _starpu_get_machine_config ();
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- struct starpu_machine_topology *topology = &config->topology;
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-
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- return topology->nmicdevices;
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-}
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-
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-starpu_mic_kernel_t _starpu_mic_src_get_kernel_from_codelet(struct starpu_codelet *cl, unsigned nimpl)
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-{
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- starpu_mic_kernel_t kernel = NULL;
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-
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- starpu_mic_func_t func = _starpu_task_get_mic_nth_implementation(cl, nimpl);
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- if (func)
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- {
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- /* We execute the function contained in the codelet, it must return a
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- * pointer to the function to execute on the device, either specified
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- * directly by the user or by a call to starpu_mic_get_func().
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- */
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- kernel = func();
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- }
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- else
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- {
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- /* If user dont define any starpu_mic_fun_t in cl->mic_func we try to use
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- * cpu_func_name.
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- */
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- char *func_name = _starpu_task_get_cpu_name_nth_implementation(cl, nimpl);
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- if (func_name)
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- {
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- starpu_mic_func_symbol_t symbol;
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-
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- _starpu_mic_src_register_kernel(&symbol, func_name);
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-
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- kernel = _starpu_mic_src_get_kernel(symbol);
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- }
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- }
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- STARPU_ASSERT(kernel);
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-
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- return kernel;
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-}
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-
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-/* Initialize the node structure describing the MIC source.
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- */
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-void _starpu_mic_src_init(struct _starpu_mp_node *node)
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-{
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- /* Let's initialize the connection with the peered sink device */
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- _starpu_mic_common_connect(&node->mp_connection.mic_endpoint,
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- STARPU_TO_MIC_ID(node->peer_id),
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- STARPU_MIC_SINK_PORT_NUMBER(node->peer_id),
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- STARPU_MIC_SOURCE_PORT_NUMBER);
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-
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- _starpu_mic_common_connect(&node->host_sink_dt_connection.mic_endpoint,
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- STARPU_TO_MIC_ID(node->peer_id),
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- STARPU_MIC_SINK_DT_PORT_NUMBER(node->peer_id),
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- STARPU_MIC_SOURCE_DT_PORT_NUMBER);
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-}
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-
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-/* Deinitialize the MIC sink, close all the connections.
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- */
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-void _starpu_mic_src_deinit(struct _starpu_mp_node *node)
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-{
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- scif_close(node->host_sink_dt_connection.mic_endpoint);
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- scif_close(node->mp_connection.mic_endpoint);
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-}
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-
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-/* Get infos of the MIC associed to memory_node */
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-static void _starpu_mic_get_engine_info(COI_ENGINE_INFO *info, int devid)
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-{
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- STARPU_ASSERT(devid >= 0 && devid < STARPU_MAXMICDEVS);
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-
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- if (COIEngineGetInfo(handles[devid], sizeof(*info), info) != COI_SUCCESS)
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- STARPU_MIC_SRC_REPORT_COI_ERROR(errno);
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-}
|
|
|
-
|
|
|
-/* TODO: call _starpu_memory_manager_set_global_memory_size instead */
|
|
|
-/* Return the size of the memory on the MIC associed to memory_node */
|
|
|
-size_t _starpu_mic_get_global_mem_size(int devid)
|
|
|
-{
|
|
|
- COI_ENGINE_INFO infos;
|
|
|
- _starpu_mic_get_engine_info(&infos, devid);
|
|
|
-
|
|
|
- return infos.PhysicalMemory;
|
|
|
-}
|
|
|
-
|
|
|
-/* Return the size of the free memory on the MIC associed to memory_node */
|
|
|
-size_t _starpu_mic_get_free_mem_size(int devid)
|
|
|
-{
|
|
|
- COI_ENGINE_INFO infos;
|
|
|
- _starpu_mic_get_engine_info(&infos, devid);
|
|
|
-
|
|
|
- return infos.PhysicalMemoryFree;
|
|
|
-}
|
|
|
-
|
|
|
-/* Allocate memory on MIC.
|
|
|
- * Return 0 if OK or 1 if not.
|
|
|
- */
|
|
|
-int _starpu_mic_allocate_memory(void **addr, size_t size, unsigned memory_node)
|
|
|
-{
|
|
|
- /* We check we have (1.25 * size) free space in the MIC because
|
|
|
- * transfert with scif is not possible when the MIC
|
|
|
- * doesn't have enought free memory.
|
|
|
- * In this cas we can't tell any things to the host. */
|
|
|
- //int devid = _starpu_memory_node_get_devid(memory_node);
|
|
|
- //if (_starpu_mic_get_free_mem_size(devid) < size * 1.25)
|
|
|
- // return 1;
|
|
|
-
|
|
|
- const struct _starpu_mp_node *mp_node = _starpu_mic_src_get_mp_node_from_memory_node(memory_node);
|
|
|
-
|
|
|
- return _starpu_src_common_allocate(mp_node, addr, size);
|
|
|
-}
|
|
|
-
|
|
|
-/* Free memory on MIC.
|
|
|
- * Mic need size to free memory for use the function scif_unregister.
|
|
|
- */
|
|
|
-void _starpu_mic_free_memory(void *addr, size_t size, unsigned memory_node)
|
|
|
-{
|
|
|
- const struct _starpu_mp_node *mp_node = _starpu_mic_src_get_mp_node_from_memory_node(memory_node);
|
|
|
- struct _starpu_mic_free_command cmd = {addr, size};
|
|
|
-
|
|
|
- return _starpu_mp_common_send_command(mp_node, STARPU_FREE, &cmd, sizeof(cmd));
|
|
|
-}
|
|
|
-
|
|
|
-/* Transfert SIZE bytes from the address pointed by SRC in the SRC_NODE memory
|
|
|
- * node to the address pointed by DST in the DST_NODE memory node
|
|
|
- */
|
|
|
-int _starpu_mic_copy_ram_to_mic(void *src, unsigned src_node STARPU_ATTRIBUTE_UNUSED, void *dst, unsigned dst_node, size_t size)
|
|
|
-{
|
|
|
- const struct _starpu_mp_node *mp_node = _starpu_mic_src_get_mp_node_from_memory_node(dst_node);
|
|
|
-
|
|
|
- return _starpu_src_common_copy_host_to_sink(mp_node, src, dst, size);
|
|
|
-}
|
|
|
-
|
|
|
-/* Transfert SIZE bytes from the address pointed by SRC in the SRC_NODE memory
|
|
|
- * node to the address pointed by DST in the DST_NODE memory node
|
|
|
- */
|
|
|
-int _starpu_mic_copy_mic_to_ram(void *src, unsigned src_node, void *dst, unsigned dst_node STARPU_ATTRIBUTE_UNUSED, size_t size)
|
|
|
-{
|
|
|
- const struct _starpu_mp_node *mp_node = _starpu_mic_src_get_mp_node_from_memory_node(src_node);
|
|
|
-
|
|
|
- return _starpu_src_common_copy_sink_to_host(mp_node, src, dst, size);
|
|
|
-}
|
|
|
-
|
|
|
-/* Asynchronous transfers */
|
|
|
-int _starpu_mic_copy_ram_to_mic_async(void *src, unsigned src_node STARPU_ATTRIBUTE_UNUSED, void *dst, unsigned dst_node, size_t size)
|
|
|
-{
|
|
|
- const struct _starpu_mp_node *mp_node = _starpu_mic_src_get_mp_node_from_memory_node(dst_node);
|
|
|
-
|
|
|
- if (scif_vwriteto(mp_node->host_sink_dt_connection.mic_endpoint, src, size, (off_t)dst, 0) < 0)
|
|
|
- STARPU_MIC_SRC_REPORT_SCIF_ERROR(errno);
|
|
|
-
|
|
|
- return 0;
|
|
|
-}
|
|
|
-
|
|
|
-int _starpu_mic_copy_mic_to_ram_async(void *src, unsigned src_node, void *dst, unsigned dst_node STARPU_ATTRIBUTE_UNUSED, size_t size)
|
|
|
-{
|
|
|
- const struct _starpu_mp_node *mp_node = _starpu_mic_src_get_mp_node_from_memory_node(src_node);
|
|
|
-
|
|
|
- if (scif_vreadfrom(mp_node->host_sink_dt_connection.mic_endpoint, dst, size, (off_t)src, 0) < 0)
|
|
|
- STARPU_MIC_SRC_REPORT_SCIF_ERROR(errno);
|
|
|
-
|
|
|
- return 0;
|
|
|
-}
|
|
|
-
|
|
|
-/* Initialize a _starpu_mic_async_event. */
|
|
|
-int _starpu_mic_init_event(struct _starpu_mic_async_event *event, unsigned memory_node)
|
|
|
-{
|
|
|
- const struct _starpu_mp_node *mp_node = _starpu_mic_src_get_mp_node_from_memory_node(memory_node);
|
|
|
- scif_epd_t epd = mp_node->host_sink_dt_connection.mic_endpoint;
|
|
|
-
|
|
|
- event->memory_node = memory_node;
|
|
|
-
|
|
|
- /* Address of allocation must be multiple of the page size. */
|
|
|
- if (posix_memalign((void **)&(event->signal), 0x1000, sizeof(*(event->signal))) != 0)
|
|
|
- return -ENOMEM;
|
|
|
- *(event->signal) = 0;
|
|
|
-
|
|
|
- /* The size pass to scif_register is 0x1000 because it should be a multiple of the page size. */
|
|
|
- if (scif_register(epd, event->signal, 0x1000, (off_t)(event->signal), SCIF_PROT_WRITE, SCIF_MAP_FIXED) < 0)
|
|
|
- STARPU_MIC_SRC_REPORT_SCIF_ERROR(errno);
|
|
|
-
|
|
|
- /* Mark for a futur wait. */
|
|
|
- if (scif_fence_mark(epd, SCIF_FENCE_INIT_SELF, &(event->mark)) < 0)
|
|
|
- STARPU_MIC_SRC_REPORT_SCIF_ERROR(errno);
|
|
|
-
|
|
|
- /* Tell to scif to write STARPU_MIC_REQUEST_COMPLETE in event->signal when the transfer is complete.
|
|
|
- * We use this for test the end of a transfer. */
|
|
|
- if (scif_fence_signal(epd, (off_t)event->signal, STARPU_MIC_REQUEST_COMPLETE, 0, 0, SCIF_FENCE_INIT_SELF | SCIF_SIGNAL_LOCAL) < 0)
|
|
|
- STARPU_MIC_SRC_REPORT_SCIF_ERROR(errno);
|
|
|
-
|
|
|
- return 0;
|
|
|
-}
|
|
|
-
|
|
|
-/* Wait the end of the asynchronous request */
|
|
|
-void _starpu_mic_wait_request_completion(struct _starpu_mic_async_event *event)
|
|
|
-{
|
|
|
- if (event->signal != NULL)
|
|
|
- {
|
|
|
- const struct _starpu_mp_node *mp_node = _starpu_mic_src_get_mp_node_from_memory_node(event->memory_node);
|
|
|
- scif_epd_t epd = mp_node->host_sink_dt_connection.mic_endpoint;
|
|
|
-
|
|
|
- if (scif_fence_wait(epd, event->mark) < 0)
|
|
|
- STARPU_MIC_SRC_REPORT_SCIF_ERROR(errno);
|
|
|
-
|
|
|
- if (scif_unregister(epd, (off_t)(event->signal), 0x1000) < 0)
|
|
|
- STARPU_MIC_SRC_REPORT_SCIF_ERROR(errno);
|
|
|
-
|
|
|
- free(event->signal);
|
|
|
- event->signal = NULL;
|
|
|
- }
|
|
|
-}
|
|
|
-
|
|
|
-/* Test if a asynchronous request is end.
|
|
|
- * Return 1 if is end, 0 else. */
|
|
|
-int _starpu_mic_request_is_complete(struct _starpu_mic_async_event *event)
|
|
|
-{
|
|
|
- if (event->signal != NULL && *(event->signal) != STARPU_MIC_REQUEST_COMPLETE)
|
|
|
- return 0;
|
|
|
-
|
|
|
- const struct _starpu_mp_node *mp_node = _starpu_mic_src_get_mp_node_from_memory_node(event->memory_node);
|
|
|
- scif_epd_t epd = mp_node->host_sink_dt_connection.mic_endpoint;
|
|
|
-
|
|
|
- if (scif_unregister(epd, (off_t)(event->signal), 0x1000) < 0)
|
|
|
- STARPU_MIC_SRC_REPORT_SCIF_ERROR(errno);
|
|
|
-
|
|
|
- free(event->signal);
|
|
|
- event->signal = NULL;
|
|
|
- return 1;
|
|
|
-}
|
|
|
-
|
|
|
-void *_starpu_mic_src_worker(void *arg)
|
|
|
-{
|
|
|
- struct _starpu_worker_set *args = arg;
|
|
|
- /* As all workers of a set share common data, we just use the first
|
|
|
- * one for intializing the following stuffs. */
|
|
|
- struct _starpu_worker *baseworker = &args->workers[0];
|
|
|
- struct _starpu_machine_config *config = baseworker->config;
|
|
|
- unsigned baseworkerid = baseworker - config->workers;
|
|
|
- unsigned mp_nodeid = baseworker->mp_nodeid;
|
|
|
- unsigned i;
|
|
|
-
|
|
|
- unsigned memnode = baseworker->memory_node;
|
|
|
-
|
|
|
- _starpu_worker_init(baseworker, _STARPU_FUT_MIC_KEY);
|
|
|
-
|
|
|
- // Current task for a thread managing a worker set has no sense.
|
|
|
- _starpu_set_current_task(NULL);
|
|
|
-
|
|
|
- for (i = 0; i < config->topology.nmiccores[mp_nodeid]; i++)
|
|
|
- {
|
|
|
- struct _starpu_worker *worker = &config->workers[baseworkerid+i];
|
|
|
- snprintf(worker->name, sizeof(worker->name), "MIC %d core %u", mp_nodeid, i);
|
|
|
- }
|
|
|
-
|
|
|
- baseworker->status = STATUS_UNKNOWN;
|
|
|
-
|
|
|
- _STARPU_TRACE_WORKER_INIT_END;
|
|
|
-
|
|
|
- /* tell the main thread that this one is ready */
|
|
|
- STARPU_PTHREAD_MUTEX_LOCK(&args->mutex);
|
|
|
- args->set_is_initialized = 1;
|
|
|
- STARPU_PTHREAD_COND_SIGNAL(&args->ready_cond);
|
|
|
- STARPU_PTHREAD_MUTEX_UNLOCK(&args->mutex);
|
|
|
-
|
|
|
-
|
|
|
- while (_starpu_machine_is_running())
|
|
|
- {
|
|
|
- int res;
|
|
|
- struct starpu_task *task = NULL;
|
|
|
- struct _starpu_job * j;
|
|
|
- unsigned micworkerid = 0;
|
|
|
-
|
|
|
- _STARPU_TRACE_START_PROGRESS(memnode);
|
|
|
- _starpu_datawizard_progress(memnode, 1);
|
|
|
- _STARPU_TRACE_END_PROGRESS(memnode);
|
|
|
-
|
|
|
- STARPU_PTHREAD_MUTEX_LOCK(&baseworker->sched_mutex);
|
|
|
-
|
|
|
- /* We pop tasklists of each worker in the set and process the
|
|
|
- * first non-empty list. */
|
|
|
- for (micworkerid = 0 ; (micworkerid < args->nworkers) && (task == NULL); micworkerid++)
|
|
|
- task = _starpu_pop_task (&args->workers[micworkerid]);
|
|
|
-
|
|
|
- if (task != NULL) {
|
|
|
- micworkerid--;
|
|
|
- goto task_found;
|
|
|
- }
|
|
|
-
|
|
|
-#if 0 // XXX: synchronous execution for now
|
|
|
- /* No task to submit, so we can poll the MIC device for
|
|
|
- * completed jobs. */
|
|
|
- struct pollfd fd = {
|
|
|
- .fd = mic_nodes[baseworker->mp_nodeid]->mp_connection.mic_endpoint,
|
|
|
- .events = POLLIN
|
|
|
- };
|
|
|
-
|
|
|
- if (0 < poll (&fd, 1, 0)) {
|
|
|
- _starpu_mic_src_process_completed_job (args);
|
|
|
- goto restart_loop;
|
|
|
- }
|
|
|
-#endif
|
|
|
-
|
|
|
- /* At this point, there is really nothing to do for the thread
|
|
|
- * so we can block.
|
|
|
- * XXX: blocking drivers is in fact broken. DO NOT USE IT ! */
|
|
|
- if (_starpu_worker_get_status(baseworkerid) != STATUS_SLEEPING)
|
|
|
- {
|
|
|
- _STARPU_TRACE_WORKER_SLEEP_START;
|
|
|
- _starpu_worker_restart_sleeping(baseworkerid);
|
|
|
- _starpu_worker_set_status(baseworkerid, STATUS_SLEEPING);
|
|
|
- }
|
|
|
-
|
|
|
- if (_starpu_worker_can_block(memnode))
|
|
|
- STARPU_PTHREAD_COND_WAIT(&baseworker->sched_cond, &baseworker->sched_mutex);
|
|
|
- else
|
|
|
- {
|
|
|
- if (_starpu_machine_is_running())
|
|
|
- STARPU_UYIELD();
|
|
|
- }
|
|
|
-
|
|
|
- if (_starpu_worker_get_status(baseworkerid) == STATUS_SLEEPING)
|
|
|
- {
|
|
|
- _STARPU_TRACE_WORKER_SLEEP_END;
|
|
|
- _starpu_worker_stop_sleeping(baseworkerid);
|
|
|
- _starpu_worker_set_status(baseworkerid, STATUS_UNKNOWN);
|
|
|
- }
|
|
|
-
|
|
|
- restart_loop:
|
|
|
- STARPU_PTHREAD_MUTEX_UNLOCK(&baseworker->sched_mutex);
|
|
|
- continue;
|
|
|
-
|
|
|
- task_found:
|
|
|
- /* If the MIC core associated to `micworkerid' is already
|
|
|
- * processing a job, we push back this one in the worker task
|
|
|
- * list. */
|
|
|
- STARPU_PTHREAD_MUTEX_UNLOCK(&baseworker->sched_mutex);
|
|
|
-
|
|
|
- if (args->workers[micworkerid].current_task) {
|
|
|
- _starpu_push_task_to_workers(task);
|
|
|
- continue;
|
|
|
- }
|
|
|
-
|
|
|
- STARPU_ASSERT(task);
|
|
|
- j = _starpu_get_job_associated_to_task(task);
|
|
|
-
|
|
|
- /* can a MIC device do that task ? */
|
|
|
- if (!_STARPU_MIC_MAY_PERFORM(j))
|
|
|
- {
|
|
|
- /* this isn't a mic task */
|
|
|
- _starpu_push_task_to_workers(task);
|
|
|
- continue;
|
|
|
- }
|
|
|
-
|
|
|
- args->workers[micworkerid].current_task = j->task;
|
|
|
-
|
|
|
- res = _starpu_mic_src_execute_job (j, &args->workers[micworkerid]);
|
|
|
-
|
|
|
- if (res)
|
|
|
- {
|
|
|
- switch (res)
|
|
|
- {
|
|
|
- case -EAGAIN:
|
|
|
- _STARPU_DISP("ouch, put the codelet %p back ... \n", j);
|
|
|
- _starpu_push_task_to_workers(task);
|
|
|
- STARPU_ABORT();
|
|
|
- continue;
|
|
|
- default:
|
|
|
- STARPU_ASSERT(0);
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- /* XXX: synchronous execution for now */
|
|
|
- _starpu_mic_src_process_completed_job (args);
|
|
|
- }
|
|
|
-
|
|
|
- _STARPU_TRACE_WORKER_DEINIT_START;
|
|
|
-
|
|
|
- _starpu_handle_all_pending_node_data_requests(memnode);
|
|
|
-
|
|
|
- /* In case there remains some memory that was automatically
|
|
|
- * allocated by StarPU, we release it now. Note that data
|
|
|
- * coherency is not maintained anymore at that point ! */
|
|
|
- _starpu_free_all_automatically_allocated_buffers(memnode);
|
|
|
-
|
|
|
- _STARPU_TRACE_WORKER_DEINIT_END(_STARPU_FUT_CUDA_KEY);
|
|
|
-
|
|
|
- return NULL;
|
|
|
-
|
|
|
-}
|