1 /* Copyright (c) 2007, 2008, 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. */
12 #include "smpi_mpi_dt_private.h"
14 #include "surf/surf.h"
15 #include "simix/smx_private.h"
18 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_kernel, smpi,
19 "Logging specific to SMPI (kernel)");
21 typedef struct s_smpi_process_data {
26 smx_rdv_t mailbox_small;
30 } s_smpi_process_data_t;
32 static smpi_process_data_t *process_data = NULL;
33 static int process_count = 0;
35 MPI_Comm MPI_COMM_WORLD = MPI_COMM_NULL;
37 #define MAILBOX_NAME_MAXLEN (5 + sizeof(int) * 2 + 1)
39 static char* get_mailbox_name(char* str, int index) {
40 snprintf(str, MAILBOX_NAME_MAXLEN, "SMPI-%0*x", (int)(sizeof(int) * 2), index);
44 static char* get_mailbox_name_small(char* str, int index) {
45 snprintf(str, MAILBOX_NAME_MAXLEN, "small%0*x", (int)(sizeof(int) * 2), index);
49 void smpi_process_init(int *argc, char ***argv)
52 smpi_process_data_t data;
56 proc = SIMIX_process_self();
57 index = atoi((*argv)[1]);
58 data = smpi_process_remote_data(index);
59 simcall_process_set_data(proc, data);
62 memmove(&(*argv)[1], &(*argv)[2], sizeof(char *) * (*argc - 2));
63 (*argv)[(*argc) - 1] = NULL;
68 simcall_rdv_set_receiver(data->mailbox_small, proc);// set the process attached to the mailbox
69 XBT_DEBUG("<%d> New process in the game: %p", index, proc);
73 void smpi_process_destroy(void)
75 int index = smpi_process_index();
77 XBT_DEBUG("<%d> Process left the game", index);
81 * @brief Prepares the current process for termination.
83 void smpi_process_finalize(void)
85 // wait for all pending asynchronous comms to finish
86 while (SIMIX_process_has_pending_comms(SIMIX_process_self())) {
87 simcall_process_sleep(0.01);
91 int smpi_process_argc(void) {
92 smpi_process_data_t data = smpi_process_data();
94 return data->argc ? *(data->argc) - 1 : 0;
97 int smpi_process_getarg(integer* index, char* dst, ftnlen len) {
98 smpi_process_data_t data = smpi_process_data();
102 if(!data->argc || !data->argv
103 || *index < 1 || *index >= *(data->argc)) {
106 arg = (*data->argv)[*index];
107 for(i = 0; i < len && arg[i] != '\0'; i++) {
110 for(; i < len; i++) {
116 int smpi_global_size(void) {
117 char* value = getenv("SMPI_GLOBAL_SIZE");
120 fprintf(stderr, "Please set env var SMPI_GLOBAL_SIZE to expected number of processes.\n");
126 smpi_process_data_t smpi_process_data(void)
128 return SIMIX_process_self_get_data(SIMIX_process_self());
131 smpi_process_data_t smpi_process_remote_data(int index)
133 return process_data[index];
136 int smpi_process_count(void)
138 return process_count;
141 int smpi_process_index(void)
143 smpi_process_data_t data = smpi_process_data();
148 smx_rdv_t smpi_process_mailbox(void) {
149 smpi_process_data_t data = smpi_process_data();
151 return data->mailbox;
154 smx_rdv_t smpi_process_mailbox_small(void) {
155 smpi_process_data_t data = smpi_process_data();
157 return data->mailbox_small;
160 smx_rdv_t smpi_process_remote_mailbox(int index) {
161 smpi_process_data_t data = smpi_process_remote_data(index);
163 return data->mailbox;
167 smx_rdv_t smpi_process_remote_mailbox_small(int index) {
168 smpi_process_data_t data = smpi_process_remote_data(index);
170 return data->mailbox_small;
173 xbt_os_timer_t smpi_process_timer(void)
175 smpi_process_data_t data = smpi_process_data();
180 void smpi_process_simulated_start(void) {
181 smpi_process_data_t data = smpi_process_data();
183 data->simulated = SIMIX_get_clock();
186 double smpi_process_simulated_elapsed(void) {
187 smpi_process_data_t data = smpi_process_data();
189 return SIMIX_get_clock() - data->simulated;
192 MPI_Comm smpi_process_comm_self(void) {
193 smpi_process_data_t data = smpi_process_data();
195 return data->comm_self;
198 void print_request(const char *message, MPI_Request request) {
199 XBT_DEBUG("%s request %p [buf = %p, size = %zu, src = %d, dst = %d, tag = %d, flags = %x]",
200 message, request, request->buf, request->size,
201 request->src, request->dst, request->tag, request->flags);
204 void smpi_global_init(void)
208 char name[MAILBOX_NAME_MAXLEN];
210 SIMIX_comm_set_copy_data_callback(&SIMIX_comm_copy_buffer_callback);
211 process_count = SIMIX_process_count();
212 process_data = xbt_new(smpi_process_data_t, process_count);
213 for (i = 0; i < process_count; i++) {
214 process_data[i] = xbt_new(s_smpi_process_data_t, 1);
215 process_data[i]->index = i;
216 process_data[i]->argc = NULL;
217 process_data[i]->argv = NULL;
218 process_data[i]->mailbox = simcall_rdv_create(get_mailbox_name(name, i));
219 process_data[i]->mailbox_small = simcall_rdv_create(get_mailbox_name_small(name, i));
220 process_data[i]->timer = xbt_os_timer_new();
221 group = smpi_group_new(1);
222 process_data[i]->comm_self = smpi_comm_new(group);
223 smpi_group_set_mapping(group, i, 0);
225 group = smpi_group_new(process_count);
226 MPI_COMM_WORLD = smpi_comm_new(group);
227 for (i = 0; i < process_count; i++) {
228 smpi_group_set_mapping(group, i, i);
232 void smpi_global_destroy(void)
234 int count = smpi_process_count();
237 smpi_bench_destroy();
238 smpi_comm_destroy(MPI_COMM_WORLD);
239 MPI_COMM_WORLD = MPI_COMM_NULL;
240 for (i = 0; i < count; i++) {
241 smpi_comm_destroy(process_data[i]->comm_self);
242 xbt_os_timer_free(process_data[i]->timer);
243 simcall_rdv_destroy(process_data[i]->mailbox);
244 simcall_rdv_destroy(process_data[i]->mailbox_small);
245 xbt_free(process_data[i]);
247 xbt_free(process_data);
253 /* Fortran specific stuff */
254 /* With smpicc, the following weak symbols are used */
255 /* With smpiff, the following weak symbols are replaced by those in libf2c */
256 int __attribute__((weak)) xargc;
257 char** __attribute__((weak)) xargv;
259 int __attribute__((weak)) main(int argc, char** argv) {
267 srand(SMPI_RAND_SEED);
269 if(getenv("SMPI_PRETEND_CC") != NULL) {
270 /* Hack to ensure that smpicc can pretend to be a simple compiler. Particularly handy to pass it to the configuration tools */
274 /* Connect log categories. See xbt/log.c */
275 XBT_LOG_CONNECT(smpi); /* Keep this line as soon as possible in this function: xbt_log_appender_file.c depends on it
276 DO NOT connect this in XBT or so, or it will be useless to xbt_log_appender_file.c */
277 XBT_LOG_CONNECT(smpi_base);
278 XBT_LOG_CONNECT(smpi_bench);
279 XBT_LOG_CONNECT(smpi_coll);
280 XBT_LOG_CONNECT(smpi_comm);
281 XBT_LOG_CONNECT(smpi_group);
282 XBT_LOG_CONNECT(smpi_kernel);
283 XBT_LOG_CONNECT(smpi_mpi);
284 XBT_LOG_CONNECT(smpi_mpi_dt);
285 XBT_LOG_CONNECT(smpi_pmpi);
288 TRACE_global_init(&xargc, xargv);
291 SIMIX_global_init(&xargc, xargv);
297 // parse the platform file: get the host list
298 SIMIX_create_environment(xargv[1]);
300 SIMIX_function_register_default(smpi_simulated_main);
301 SIMIX_launch_application(xargv[2]);
305 /* Clean IO before the run */
314 if (xbt_cfg_get_int(_surf_cfg_set, "smpi/display_timing"))
315 XBT_INFO("Simulation time: %g seconds.", SIMIX_get_clock());
317 smpi_global_destroy();