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_CATEGORY(smpi, "All SMPI categories");
20 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_kernel, smpi,
21 "Logging specific to SMPI (kernel)");
23 typedef struct s_smpi_process_data {
28 smx_rdv_t mailbox_small;
32 } s_smpi_process_data_t;
34 static smpi_process_data_t *process_data = NULL;
35 static int process_count = 0;
37 MPI_Comm MPI_COMM_WORLD = MPI_COMM_NULL;
39 #define MAILBOX_NAME_MAXLEN (5 + sizeof(int) * 2 + 1)
41 static char* get_mailbox_name(char* str, int index) {
42 snprintf(str, MAILBOX_NAME_MAXLEN, "SMPI-%0*x", (int)(sizeof(int) * 2), index);
46 static char* get_mailbox_name_small(char* str, int index) {
47 snprintf(str, MAILBOX_NAME_MAXLEN, "small%0*x", (int)(sizeof(int) * 2), index);
51 void smpi_process_init(int *argc, char ***argv)
54 smpi_process_data_t data;
58 proc = SIMIX_process_self();
59 index = atoi((*argv)[1]);
60 data = smpi_process_remote_data(index);
61 simcall_process_set_data(proc, data);
64 memmove(&(*argv)[1], &(*argv)[2], sizeof(char *) * (*argc - 2));
65 (*argv)[(*argc) - 1] = NULL;
70 SIMIX_rdv_set_receiver(data->mailbox_small, proc);// set the process attached to the mailbox
71 XBT_DEBUG("<%d> New process in the game: %p", index, proc);
75 void smpi_process_destroy(void)
77 int index = smpi_process_index();
79 XBT_DEBUG("<%d> Process left the game", index);
83 * @brief Prepares the current process for termination.
85 void smpi_process_finalize(void)
87 // wait for all pending asynchronous comms to finish
88 while (SIMIX_process_has_pending_comms(SIMIX_process_self())) {
89 simcall_process_sleep(0.01);
93 int smpi_process_argc(void) {
94 smpi_process_data_t data = smpi_process_data();
96 return data->argc ? *(data->argc) - 1 : 0;
99 int smpi_process_getarg(integer* index, char* dst, ftnlen len) {
100 smpi_process_data_t data = smpi_process_data();
104 if(!data->argc || !data->argv
105 || *index < 1 || *index >= *(data->argc)) {
108 arg = (*data->argv)[*index];
109 for(i = 0; i < len && arg[i] != '\0'; i++) {
112 for(; i < len; i++) {
118 int smpi_global_size(void) {
119 char* value = getenv("SMPI_GLOBAL_SIZE");
122 fprintf(stderr, "Please set env var SMPI_GLOBAL_SIZE to expected number of processes.\n");
128 smpi_process_data_t smpi_process_data(void)
130 return SIMIX_process_self_get_data(SIMIX_process_self());
133 smpi_process_data_t smpi_process_remote_data(int index)
135 return process_data[index];
138 int smpi_process_count(void)
140 return process_count;
143 int smpi_process_index(void)
145 smpi_process_data_t data = smpi_process_data();
150 smx_rdv_t smpi_process_mailbox(void) {
151 smpi_process_data_t data = smpi_process_data();
153 return data->mailbox;
156 smx_rdv_t smpi_process_mailbox_small(void) {
157 smpi_process_data_t data = smpi_process_data();
159 return data->mailbox_small;
162 smx_rdv_t smpi_process_remote_mailbox(int index) {
163 smpi_process_data_t data = smpi_process_remote_data(index);
165 return data->mailbox;
169 smx_rdv_t smpi_process_remote_mailbox_small(int index) {
170 smpi_process_data_t data = smpi_process_remote_data(index);
172 return data->mailbox_small;
175 xbt_os_timer_t smpi_process_timer(void)
177 smpi_process_data_t data = smpi_process_data();
182 void smpi_process_simulated_start(void) {
183 smpi_process_data_t data = smpi_process_data();
185 data->simulated = SIMIX_get_clock();
188 double smpi_process_simulated_elapsed(void) {
189 smpi_process_data_t data = smpi_process_data();
191 return SIMIX_get_clock() - data->simulated;
194 MPI_Comm smpi_process_comm_self(void) {
195 smpi_process_data_t data = smpi_process_data();
197 return data->comm_self;
200 void print_request(const char *message, MPI_Request request) {
201 XBT_DEBUG("%s request %p [buf = %p, size = %zu, src = %d, dst = %d, tag = %d, flags = %x]",
202 message, request, request->buf, request->size,
203 request->src, request->dst, request->tag, request->flags);
206 void smpi_global_init(void)
210 char name[MAILBOX_NAME_MAXLEN];
212 SIMIX_comm_set_copy_data_callback(&smpi_comm_copy_data_callback);
213 process_count = SIMIX_process_count();
214 process_data = xbt_new(smpi_process_data_t, process_count);
215 for (i = 0; i < process_count; i++) {
216 process_data[i] = xbt_new(s_smpi_process_data_t, 1);
217 process_data[i]->index = i;
218 process_data[i]->argc = NULL;
219 process_data[i]->argv = NULL;
220 process_data[i]->mailbox = simcall_rdv_create(get_mailbox_name(name, i));
221 process_data[i]->mailbox_small = simcall_rdv_create(get_mailbox_name_small(name, i));
222 process_data[i]->timer = xbt_os_timer_new();
223 group = smpi_group_new(1);
224 process_data[i]->comm_self = smpi_comm_new(group);
225 smpi_group_set_mapping(group, i, 0);
227 group = smpi_group_new(process_count);
228 MPI_COMM_WORLD = smpi_comm_new(group);
229 for (i = 0; i < process_count; i++) {
230 smpi_group_set_mapping(group, i, i);
234 void smpi_global_destroy(void)
236 int count = smpi_process_count();
239 smpi_bench_destroy();
240 smpi_comm_destroy(MPI_COMM_WORLD);
241 MPI_COMM_WORLD = MPI_COMM_NULL;
242 for (i = 0; i < count; i++) {
243 smpi_comm_destroy(process_data[i]->comm_self);
244 xbt_os_timer_free(process_data[i]->timer);
245 simcall_rdv_destroy(process_data[i]->mailbox);
246 simcall_rdv_destroy(process_data[i]->mailbox_small);
247 xbt_free(process_data[i]);
249 xbt_free(process_data);
255 /* Fortran specific stuff */
256 /* With smpicc, the following weak symbols are used */
257 /* With smpiff, the following weak symbols are replaced by those in libf2c */
258 int __attribute__((weak)) xargc;
259 char** __attribute__((weak)) xargv;
261 int __attribute__((weak)) main(int argc, char** argv) {
269 srand(SMPI_RAND_SEED);
271 if(getenv("SMPI_PRETEND_CC") != NULL) {
272 /* Hack to ensure that smpicc can pretend to be a simple compiler. Particularly handy to pass it to the configuration tools */
276 /* Connect log categories. See xbt/log.c */
277 XBT_LOG_CONNECT(smpi);
278 XBT_LOG_CONNECT(smpi_base);
279 XBT_LOG_CONNECT(smpi_bench);
280 XBT_LOG_CONNECT(smpi_coll);
281 XBT_LOG_CONNECT(smpi_comm);
282 XBT_LOG_CONNECT(smpi_group);
283 XBT_LOG_CONNECT(smpi_kernel);
284 XBT_LOG_CONNECT(smpi_mpi);
285 XBT_LOG_CONNECT(smpi_mpi_dt);
286 XBT_LOG_CONNECT(smpi_pmpi);
289 TRACE_global_init(&xargc, xargv);
292 SIMIX_global_init(&xargc, xargv);
298 // parse the platform file: get the host list
299 SIMIX_create_environment(xargv[1]);
301 SIMIX_function_register_default(smpi_simulated_main);
302 SIMIX_launch_application(xargv[2]);
306 /* Clean IO before the run */
315 if (xbt_cfg_get_int(_surf_cfg_set, "smpi/display_timing"))
316 XBT_INFO("Simulation time: %g seconds.", SIMIX_get_clock());
318 smpi_global_destroy();