1 /* Copyright (c) 2007, 2009, 2010. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
9 #include "xbt/sysdep.h"
11 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_bench, smpi,
12 "Logging specific to SMPI (benchmarking)");
14 xbt_dict_t allocs = NULL; /* Allocated on first use */
21 static void free_shared_data(void* ptr) {
25 void smpi_bench_destroy(void) {
27 xbt_dict_free(&allocs);
31 static void smpi_execute(double duration) {
36 e_surf_action_state_t state;
38 if(duration >= xbt_cfg_get_double(_surf_cfg_set, "smpi/cpu_threshold")) {
39 host = SIMIX_host_self();
40 mutex = SIMIX_mutex_init();
41 cond = SIMIX_cond_init();
42 DEBUG1("Sleep for %f to handle real computation time", duration);
43 duration *= xbt_cfg_get_double(_surf_cfg_set, "smpi/running_power");
44 action = SIMIX_action_execute(host, "computation", duration);
45 SIMIX_mutex_lock(mutex);
46 SIMIX_register_action_to_condition(action, cond);
47 for(state = SIMIX_action_get_state(action);
48 state == SURF_ACTION_READY ||
49 state == SURF_ACTION_RUNNING; state = SIMIX_action_get_state(action)) {
50 SIMIX_cond_wait(cond, mutex);
52 SIMIX_unregister_action_to_condition(action, cond);
53 SIMIX_mutex_unlock(mutex);
54 SIMIX_action_destroy(action);
55 SIMIX_cond_destroy(cond);
56 SIMIX_mutex_destroy(mutex);
60 void smpi_bench_begin(int rank, const char* mpi_call) {
61 if(mpi_call && rank >= 0 && xbt_cfg_get_int(_surf_cfg_set, "smpi/log_events")) {
62 INFO3("SMPE: ts=%f rank=%d type=end et=%s", SIMIX_get_clock(), rank, mpi_call);
64 xbt_os_timer_start(smpi_process_timer());
67 void smpi_bench_end(int rank, const char* mpi_call) {
68 xbt_os_timer_t timer = smpi_process_timer();
70 xbt_os_timer_stop(timer);
71 smpi_execute(xbt_os_timer_elapsed(timer));
72 if(mpi_call && rank >= 0 && xbt_cfg_get_int(_surf_cfg_set, "smpi/log_events")) {
73 INFO3("SMPE: ts=%f rank=%d type=begin et=%s", SIMIX_get_clock(), rank, mpi_call);
79 void smpi_do_once_1(const char *file, int line)
81 smpi_do_once_duration_node_t curr, prev;
84 SIMIX_mutex_lock(smpi_global->do_once_mutex);
86 for(curr = smpi_global->do_once_duration_nodes;
87 NULL != curr && (strcmp(curr->file, file) || curr->line != line);
92 curr = xbt_new(s_smpi_do_once_duration_node_t, 1);
93 curr->file = xbt_strdup(file);
98 smpi_global->do_once_duration_nodes = curr;
103 smpi_global->do_once_duration = &curr->duration;
108 double duration = *(smpi_global->do_once_duration);
114 SIMIX_mutex_unlock(smpi_global->do_once_mutex);
115 smpi_execute(duration);
120 void smpi_do_once_3()
122 *(smpi_global->do_once_duration) = smpi_stop_timer();
126 void* smpi_shared_malloc(size_t size, const char* file, int line) {
127 char* loc = bprintf("%s:%d", file, line);
131 allocs = xbt_dict_new();
133 data = xbt_dict_get_or_null(allocs, loc);
135 data = (shared_data_t*)xbt_malloc0(sizeof(int) + size);
137 xbt_dict_set(allocs, loc, data, &free_shared_data);
145 void smpi_shared_free(void* ptr) {
146 shared_data_t* data = (shared_data_t*)((int*)ptr - 1);
150 WARN0("Cannot free: nothing was allocated");
153 loc = xbt_dict_get_key(allocs, data);
155 WARN1("Cannot free: %p was not shared-allocated by SMPI", ptr);
159 if (data->count <= 0) {
160 xbt_dict_remove(allocs, loc);