+/* Copyright (c) 2007, 2008, 2009, 2010. The SimGrid Team.
+ * All rights reserved. */
+
+/* This program is free software; you can redistribute it and/or modify it
+ * under the terms of the license (GNU LGPL) which comes with this package. */
+
+#include <stdint.h>
#include <stdio.h>
+#include <stdlib.h>
#include "private.h"
+#include "smpi_mpi_dt_private.h"
+#include "mc/mc.h"
+#include "surf/surf.h"
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi, XBT_LOG_ROOT_CAT, "All SMPI categories");
+XBT_LOG_NEW_CATEGORY(smpi, "All SMPI categories");
-SMPI_Global_t smpi_global = NULL;
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_kernel, smpi,
+ "Logging specific to SMPI (kernel)");
-void *smpi_request_new()
-{
- smpi_mpi_request_t request = xbt_new(s_smpi_mpi_request_t, 1);
+typedef struct s_smpi_process_data {
+ int index;
+ int* argc;
+ char*** argv;
+ smx_rdv_t mailbox;
+ xbt_os_timer_t timer;
+ double simulated;
+ MPI_Comm comm_self;
+} s_smpi_process_data_t;
+
+static smpi_process_data_t *process_data = NULL;
+static int process_count = 0;
+
+MPI_Comm MPI_COMM_WORLD = MPI_COMM_NULL;
- request->completed = 0;
- request->mutex = SIMIX_mutex_init();
- request->cond = SIMIX_cond_init();
+#define MAILBOX_NAME_MAXLEN (5 + sizeof(int) * 2 + 1)
- return request;
+static char* get_mailbox_name(char* str, int index) {
+ snprintf(str, MAILBOX_NAME_MAXLEN, "SMPI-%0*x", (int)(sizeof(int) * 2), index);
+ return str;
}
-void smpi_request_free(void *pointer)
+void smpi_process_init(int *argc, char ***argv)
{
+ int index;
+ smpi_process_data_t data;
+ smx_process_t proc;
+
+ if(argc && argv) {
+ proc = SIMIX_process_self();
+ index = atoi((*argv)[1]);
+ data = smpi_process_remote_data(index);
+ SIMIX_req_process_set_data(proc, data);
+ if (*argc > 2) {
+ free((*argv)[1]);
+ memmove(&(*argv)[1], &(*argv)[2], sizeof(char *) * (*argc - 2));
+ (*argv)[(*argc) - 1] = NULL;
+ }
+ (*argc)--;
+ data->argc = argc;
+ data->argv = argv;
+ XBT_DEBUG("<%d> New process in the game: %p", index, proc);
+ }
+}
+
+void smpi_process_destroy(void)
+{
+ int index = smpi_process_index();
- smpi_mpi_request_t request = pointer;
+ XBT_DEBUG("<%d> Process left the game", index);
+}
- if (NULL != request) {
- SIMIX_cond_destroy(request->cond);
- SIMIX_mutex_destroy(request->mutex);
- xbt_free(request);
- }
+int smpi_process_argc(void) {
+ smpi_process_data_t data = smpi_process_data();
- return;
+ return data->argc ? *(data->argc) - 1 : 0;
}
-void smpi_request_reset(void *pointer)
-{
- return;
+int smpi_process_getarg(integer* index, char* dst, ftnlen len) {
+ smpi_process_data_t data = smpi_process_data();
+ char* arg;
+ ftnlen i;
+
+ if(!data->argc || !data->argv
+ || *index < 1 || *index >= *(data->argc)) {
+ return -1;
+ }
+ arg = (*data->argv)[*index];
+ for(i = 0; i < len && arg[i] != '\0'; i++) {
+ dst[i] = arg[i];
+ }
+ for(; i < len; i++) {
+ dst[i] = ' ';
+ }
+ return 0;
}
+int smpi_global_size(void) {
+ char* value = getenv("SMPI_GLOBAL_SIZE");
-void *smpi_message_new()
-{
- return xbt_new(s_smpi_received_message_t, 1);
+ if(!value) {
+ fprintf(stderr, "Please set env var SMPI_GLOBAL_SIZE to expected number of processes.\n");
+ abort();
+ }
+ return atoi(value);
}
-void smpi_message_free(void *pointer)
+smpi_process_data_t smpi_process_data(void)
{
- if (NULL != pointer) {
- xbt_free(pointer);
- }
-
- return;
+ return SIMIX_process_self_get_data(SIMIX_process_self());
}
-void smpi_message_reset(void *pointer)
+smpi_process_data_t smpi_process_remote_data(int index)
{
- return;
+ return process_data[index];
}
-void smpi_global_init()
+int smpi_process_count(void)
{
- int i;
-
- int size = SIMIX_host_get_number();
-
- smpi_global = xbt_new(s_SMPI_Global_t, 1);
+ return process_count;
+}
- // config variable
- smpi_global->reference_speed = SMPI_DEFAULT_SPEED;
+int smpi_process_index(void)
+{
+ smpi_process_data_t data = smpi_process_data();
- smpi_global->root_ready = 0;
- smpi_global->ready_process_count = 0;
+ return data->index;
+}
- // start/stop
- smpi_global->start_stop_mutex = SIMIX_mutex_init();
- smpi_global->start_stop_cond = SIMIX_cond_init();
+smx_rdv_t smpi_process_mailbox(void) {
+ smpi_process_data_t data = smpi_process_data();
- // processes
- smpi_global->sender_processes = xbt_new(smx_process_t, size);
- smpi_global->receiver_processes = xbt_new(smx_process_t, size);
+ return data->mailbox;
+}
- // running hosts
- smpi_global->running_hosts_count_mutex = SIMIX_mutex_init();
- smpi_global->running_hosts_count = 0;
+smx_rdv_t smpi_process_remote_mailbox(int index) {
+ smpi_process_data_t data = smpi_process_remote_data(index);
- // mallocators
- smpi_global->request_mallocator = xbt_mallocator_new(SMPI_REQUEST_MALLOCATOR_SIZE,
- smpi_request_new, smpi_request_free, smpi_request_reset);
- smpi_global->message_mallocator = xbt_mallocator_new(SMPI_MESSAGE_MALLOCATOR_SIZE,
- smpi_message_new, smpi_message_free, smpi_message_reset);
+ return data->mailbox;
+}
- // queues
- smpi_global->pending_send_request_queues = xbt_new(xbt_fifo_t, size);
- smpi_global->pending_send_request_queues_mutexes = xbt_new(smx_mutex_t, size);
- smpi_global->pending_recv_request_queues = xbt_new(xbt_fifo_t, size);
- smpi_global->pending_recv_request_queues_mutexes = xbt_new(smx_mutex_t, size);
- smpi_global->received_message_queues = xbt_new(xbt_fifo_t, size);
- smpi_global->received_message_queues_mutexes = xbt_new(smx_mutex_t, size);
+xbt_os_timer_t smpi_process_timer(void)
+{
+ smpi_process_data_t data = smpi_process_data();
- // timers
- smpi_global->timers = xbt_new(xbt_os_timer_t, size);
- smpi_global->timers_mutexes = xbt_new(smx_mutex_t, size);
+ return data->timer;
+}
- for(i = 0; i < size; i++) {
- smpi_global->pending_send_request_queues[i] = xbt_fifo_new();
- smpi_global->pending_send_request_queues_mutexes[i] = SIMIX_mutex_init();
- smpi_global->pending_recv_request_queues[i] = xbt_fifo_new();
- smpi_global->pending_recv_request_queues_mutexes[i] = SIMIX_mutex_init();
- smpi_global->received_message_queues[i] = xbt_fifo_new();
- smpi_global->received_message_queues_mutexes[i] = SIMIX_mutex_init();
- smpi_global->timers[i] = xbt_os_timer_new();
- smpi_global->timers_mutexes[i] = SIMIX_mutex_init();
- }
+void smpi_process_simulated_start(void)
+{
+ smpi_process_data_t data = smpi_process_data();
+ data->simulated = SIMIX_get_clock();
}
-void smpi_global_destroy()
+double smpi_process_simulated_elapsed(void)
{
- int i;
-
- int size = SIMIX_host_get_number();
+ smpi_process_data_t data = smpi_process_data();
- // start/stop
- SIMIX_mutex_destroy(smpi_global->start_stop_mutex);
- SIMIX_cond_destroy(smpi_global->start_stop_cond);
+ return SIMIX_get_clock() - data->simulated;
+}
- // processes
- xbt_free(smpi_global->sender_processes);
- xbt_free(smpi_global->receiver_processes);
+MPI_Comm smpi_process_comm_self(void)
+{
+ smpi_process_data_t data = smpi_process_data();
- // running hosts
- SIMIX_mutex_destroy(smpi_global->running_hosts_count_mutex);
+ return data->comm_self;
+}
- // mallocators
- xbt_mallocator_free(smpi_global->request_mallocator);
- xbt_mallocator_free(smpi_global->message_mallocator);
+void print_request(const char *message, MPI_Request request)
+{
+ XBT_DEBUG("%s request %p [buf = %p, size = %zu, src = %d, dst = %d, tag = %d, flags = %x]",
+ message, request, request->buf, request->size,
+ request->src, request->dst, request->tag, request->flags);
+}
- for(i = 0; i < size; i++) {
- xbt_fifo_free(smpi_global->pending_send_request_queues[i]);
- SIMIX_mutex_destroy(smpi_global->pending_send_request_queues_mutexes[i]);
- xbt_fifo_free(smpi_global->pending_recv_request_queues[i]);
- SIMIX_mutex_destroy(smpi_global->pending_recv_request_queues_mutexes[i]);
- xbt_fifo_free(smpi_global->received_message_queues[i]);
- SIMIX_mutex_destroy(smpi_global->received_message_queues_mutexes[i]);
- xbt_os_timer_free(smpi_global->timers[i]);
- SIMIX_mutex_destroy(smpi_global->timers_mutexes[i]);
- }
+void smpi_global_init(void)
+{
+ int i;
+ MPI_Group group;
+ char name[MAILBOX_NAME_MAXLEN];
+
+ SIMIX_comm_set_copy_data_callback(&smpi_comm_copy_data_callback);
+ process_count = SIMIX_process_count();
+ process_data = xbt_new(smpi_process_data_t, process_count);
+ for (i = 0; i < process_count; i++) {
+ process_data[i] = xbt_new(s_smpi_process_data_t, 1);
+ process_data[i]->index = i;
+ process_data[i]->argc = NULL;
+ process_data[i]->argv = NULL;
+ process_data[i]->mailbox = SIMIX_req_rdv_create(get_mailbox_name(name, i));
+ process_data[i]->timer = xbt_os_timer_new();
+ group = smpi_group_new(1);
+ process_data[i]->comm_self = smpi_comm_new(group);
+ smpi_group_set_mapping(group, i, 0);
+ }
+ group = smpi_group_new(process_count);
+ MPI_COMM_WORLD = smpi_comm_new(group);
+ for (i = 0; i < process_count; i++) {
+ smpi_group_set_mapping(group, i, i);
+ }
+}
- xbt_free(smpi_global->pending_send_request_queues);
- xbt_free(smpi_global->pending_send_request_queues_mutexes);
- xbt_free(smpi_global->pending_recv_request_queues);
- xbt_free(smpi_global->pending_recv_request_queues_mutexes);
- xbt_free(smpi_global->received_message_queues);
- xbt_free(smpi_global->received_message_queues_mutexes);
- xbt_free(smpi_global->timers);
- xbt_free(smpi_global->timers_mutexes);
+void smpi_global_destroy(void)
+{
+ int count = smpi_process_count();
+ int i;
+
+ smpi_bench_destroy();
+ smpi_comm_destroy(MPI_COMM_WORLD);
+ MPI_COMM_WORLD = MPI_COMM_NULL;
+ for (i = 0; i < count; i++) {
+ smpi_comm_destroy(process_data[i]->comm_self);
+ xbt_os_timer_free(process_data[i]->timer);
+ SIMIX_req_rdv_destroy(process_data[i]->mailbox);
+ xbt_free(process_data[i]);
+ }
+ xbt_free(process_data);
+ process_data = NULL;
+}
- xbt_free(smpi_global);
+/* Fortran specific stuff */
+/* With smpicc, the following weak symbols are used */
+/* With smpiff, the following weak symbols are replaced by those in libf2c */
+int __attribute__((weak)) xargc;
+char** __attribute__((weak)) xargv;
- smpi_global = NULL;
+int __attribute__((weak)) main(int argc, char** argv) {
+ xargc = argc;
+ xargv = argv;
+ return MAIN__();
}
-int smpi_run_simulation(int argc, char **argv)
+int MAIN__(void)
{
- xbt_fifo_item_t cond_item = NULL;
- smx_cond_t cond = NULL;
- xbt_fifo_item_t action_item = NULL;
- smx_action_t action = NULL;
+ srand(SMPI_RAND_SEED);
+
+ double default_reference_speed = 20000.0;
+ xbt_cfg_register(&_surf_cfg_set, "smpi/running_power",
+ "Power of the host running the simulation (in flop/s). Used to bench the operations.",
+ xbt_cfgelm_double, &default_reference_speed, 1, 1, NULL,
+ NULL);
- xbt_fifo_t actions_failed = xbt_fifo_new();
- xbt_fifo_t actions_done = xbt_fifo_new();
+ int default_display_timing = 0;
+ xbt_cfg_register(&_surf_cfg_set, "smpi/display_timing",
+ "Boolean indicating whether we should display the timing after simulation.",
+ xbt_cfgelm_int, &default_display_timing, 1, 1, NULL,
+ NULL);
- srand(SMPI_RAND_SEED);
+ double default_threshold = 1e-6;
+ xbt_cfg_register(&_surf_cfg_set, "smpi/cpu_threshold",
+ "Minimal computation time (in seconds) not discarded.",
+ xbt_cfgelm_double, &default_threshold, 1, 1, NULL,
+ NULL);
- SIMIX_global_init(&argc, argv);
+ if(getenv("SMPI_PRETEND_CC") != NULL) {
+ /* Hack to ensure that smpicc can pretend to be a simple compiler. Particularly handy to pass it to the configuration tools */
+ return 0;
+ }
- SIMIX_function_register("smpi_simulated_main", smpi_simulated_main);
- SIMIX_function_register("smpi_sender", smpi_sender);
- SIMIX_function_register("smpi_receiver", smpi_receiver);
+#ifdef HAVE_TRACING
+ TRACE_global_init(&xargc, xargv);
+#endif
- // FIXME: ought to verify these files...
- SIMIX_create_environment(argv[1]);
+ SIMIX_global_init(&xargc, xargv);
- // must initialize globals between creating environment and launching app....
- smpi_global_init();
+#ifdef HAVE_TRACING
+ TRACE_smpi_start();
+#endif
- SIMIX_launch_application(argv[2]);
+ // parse the platform file: get the host list
+ SIMIX_create_environment(xargv[1]);
- /* Prepare to display some more info when dying on Ctrl-C pressing */
- // FIXME: doesn't work
- //signal(SIGINT, inthandler);
+ SIMIX_function_register_default(smpi_simulated_main);
+ SIMIX_launch_application(xargv[2]);
- /* Clean IO before the run */
- fflush(stdout);
- fflush(stderr);
+ smpi_global_init();
- while (SIMIX_solve(actions_done, actions_failed) != -1.0) {
- xbt_fifo_foreach(actions_failed, action_item, action, smx_action_t) {
- DEBUG1("** %s failed **", action->name);
- xbt_fifo_foreach(action->cond_list, cond_item, cond, smx_cond_t) {
- SIMIX_cond_broadcast(cond);
- }
- }
- xbt_fifo_foreach(actions_done, action_item, action, smx_action_t) {
- DEBUG1("** %s done **",action->name);
- xbt_fifo_foreach(action->cond_list, cond_item, cond, smx_cond_t) {
- SIMIX_cond_broadcast(cond);
- }
- }
- }
+ /* Clean IO before the run */
+ fflush(stdout);
+ fflush(stderr);
- // FIXME: cleanup incomplete
- xbt_fifo_free(actions_failed);
- xbt_fifo_free(actions_done);
+ if (MC_IS_ENABLED)
+ MC_modelcheck();
+ else
+ SIMIX_run();
- INFO1("simulation time %g", SIMIX_get_clock());
+ if (xbt_cfg_get_int(_surf_cfg_set, "smpi/display_timing"))
+ XBT_INFO("Simulation time: %g seconds.", SIMIX_get_clock());
- smpi_global_destroy();
+ smpi_global_destroy();
- SIMIX_clean();
+#ifdef HAVE_TRACING
+ TRACE_smpi_release();
+#endif
- return 0;
+ SIMIX_clean();
+ return 0;
}
