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 void *data; /* user data */
31 } s_smpi_process_data_t;
33 static smpi_process_data_t *process_data = NULL;
34 static int process_count = 0;
36 MPI_Comm MPI_COMM_WORLD = MPI_COMM_NULL;
38 MPI_Errhandler* MPI_ERRORS_RETURN = NULL;
39 MPI_Errhandler* MPI_ERRORS_ARE_FATAL = NULL;
40 MPI_Errhandler* MPI_ERRHANDLER_NULL = NULL;
42 #define MAILBOX_NAME_MAXLEN (5 + sizeof(int) * 2 + 1)
44 static char* get_mailbox_name(char* str, int index) {
45 snprintf(str, MAILBOX_NAME_MAXLEN, "SMPI-%0*x", (int)(sizeof(int) * 2), index);
49 static char* get_mailbox_name_small(char* str, int index) {
50 snprintf(str, MAILBOX_NAME_MAXLEN, "small%0*x", (int)(sizeof(int) * 2), index);
54 void smpi_process_init(int *argc, char ***argv)
57 smpi_process_data_t data;
61 proc = SIMIX_process_self();
62 index = atoi((*argv)[1]);
63 data = smpi_process_remote_data(index);
64 simcall_process_set_data(proc, data);
67 memmove(&(*argv)[1], &(*argv)[2], sizeof(char *) * (*argc - 2));
68 (*argv)[(*argc) - 1] = NULL;
73 simcall_rdv_set_receiver(data->mailbox_small, proc);// set the process attached to the mailbox
74 XBT_DEBUG("<%d> New process in the game: %p", index, proc);
78 void smpi_process_destroy(void)
80 int index = smpi_process_index();
82 XBT_DEBUG("<%d> Process left the game", index);
86 * @brief Prepares the current process for termination.
88 void smpi_process_finalize(void)
90 // wait for all pending asynchronous comms to finish
91 while (SIMIX_process_has_pending_comms(SIMIX_process_self())) {
92 simcall_process_sleep(0.01);
97 int smpi_process_argc(void) {
98 smpi_process_data_t data = smpi_process_data();
100 return data->argc ? *(data->argc) - 1 : 0;
103 int smpi_process_getarg(integer* index, char* dst, ftnlen len) {
104 smpi_process_data_t data = smpi_process_data();
108 if(!data->argc || !data->argv
109 || *index < 1 || *index >= *(data->argc)) {
112 arg = (*data->argv)[*index];
113 for(i = 0; i < len && arg[i] != '\0'; i++) {
116 for(; i < len; i++) {
122 int smpi_global_size(void) {
123 char* value = getenv("SMPI_GLOBAL_SIZE");
126 fprintf(stderr, "Please set env var SMPI_GLOBAL_SIZE to expected number of processes.\n");
133 smpi_process_data_t smpi_process_data(void)
135 return SIMIX_process_self_get_data(SIMIX_process_self());
138 smpi_process_data_t smpi_process_remote_data(int index)
140 return process_data[index];
143 void smpi_process_set_user_data(void *data)
145 smpi_process_data_t process_data = smpi_process_data();
146 process_data->data = data;
149 void* smpi_process_get_user_data(){
150 smpi_process_data_t process_data = smpi_process_data();
151 return process_data->data;
154 int smpi_process_count(void)
156 return process_count;
159 int smpi_process_index(void)
161 smpi_process_data_t data = smpi_process_data();
166 smx_rdv_t smpi_process_mailbox(void) {
167 smpi_process_data_t data = smpi_process_data();
169 return data->mailbox;
172 smx_rdv_t smpi_process_mailbox_small(void) {
173 smpi_process_data_t data = smpi_process_data();
175 return data->mailbox_small;
178 smx_rdv_t smpi_process_remote_mailbox(int index) {
179 smpi_process_data_t data = smpi_process_remote_data(index);
181 return data->mailbox;
185 smx_rdv_t smpi_process_remote_mailbox_small(int index) {
186 smpi_process_data_t data = smpi_process_remote_data(index);
188 return data->mailbox_small;
191 xbt_os_timer_t smpi_process_timer(void)
193 smpi_process_data_t data = smpi_process_data();
198 void smpi_process_simulated_start(void) {
199 smpi_process_data_t data = smpi_process_data();
201 data->simulated = SIMIX_get_clock();
204 double smpi_process_simulated_elapsed(void) {
205 smpi_process_data_t data = smpi_process_data();
207 return SIMIX_get_clock() - data->simulated;
210 MPI_Comm smpi_process_comm_self(void) {
211 smpi_process_data_t data = smpi_process_data();
213 return data->comm_self;
216 void print_request(const char *message, MPI_Request request) {
217 XBT_DEBUG("%s request %p [buf = %p, size = %zu, src = %d, dst = %d, tag = %d, flags = %x]",
218 message, request, request->buf, request->size,
219 request->src, request->dst, request->tag, request->flags);
222 static void SMPI_comm_copy_buffer_callback(smx_action_t comm, void* buff, size_t buff_size)
224 XBT_DEBUG("Copy the data over");
225 memcpy(comm->comm.dst_buff, buff, buff_size);
226 if (comm->comm.detached) { // if this is a detached send, the source buffer was duplicated by SMPI sender to make the original buffer available to the application ASAP
228 //It seems that the request is used after the call there this should
229 //be free somewhereelse but where???
230 //xbt_free(comm->comm.src_data);// inside SMPI the request is keep
231 //inside the user data and should be free
232 comm->comm.src_buff = NULL;
236 void smpi_global_init(void)
240 char name[MAILBOX_NAME_MAXLEN];
242 SIMIX_comm_set_copy_data_callback(&SMPI_comm_copy_buffer_callback);
243 process_count = SIMIX_process_count();
244 process_data = xbt_new(smpi_process_data_t, process_count);
245 for (i = 0; i < process_count; i++) {
246 process_data[i] = xbt_new(s_smpi_process_data_t, 1);
247 process_data[i]->index = i;
248 process_data[i]->argc = NULL;
249 process_data[i]->argv = NULL;
250 process_data[i]->mailbox = simcall_rdv_create(get_mailbox_name(name, i));
251 process_data[i]->mailbox_small = simcall_rdv_create(get_mailbox_name_small(name, i));
252 process_data[i]->timer = xbt_os_timer_new();
253 group = smpi_group_new(1);
254 process_data[i]->comm_self = smpi_comm_new(group);
255 smpi_group_set_mapping(group, i, 0);
257 group = smpi_group_new(process_count);
258 MPI_COMM_WORLD = smpi_comm_new(group);
259 for (i = 0; i < process_count; i++) {
260 smpi_group_set_mapping(group, i, i);
264 void smpi_global_destroy(void)
266 int count = smpi_process_count();
269 smpi_bench_destroy();
270 smpi_group_destroy(smpi_comm_group(MPI_COMM_WORLD));
271 smpi_comm_destroy(MPI_COMM_WORLD);
272 MPI_COMM_WORLD = MPI_COMM_NULL;
273 for (i = 0; i < count; i++) {
274 smpi_comm_destroy(process_data[i]->comm_self);
275 xbt_os_timer_free(process_data[i]->timer);
276 simcall_rdv_destroy(process_data[i]->mailbox);
277 simcall_rdv_destroy(process_data[i]->mailbox_small);
278 xbt_free(process_data[i]);
280 xbt_free(process_data);
286 /* Fortran specific stuff */
287 /* With smpicc, the following weak symbols are used */
288 /* With smpiff, the following weak symbols are replaced by those in libf2c */
290 int __attribute__((weak)) xargc;
291 char** __attribute__((weak)) xargv;
293 int __attribute__((weak)) smpi_simulated_main(int argc, char** argv) {
294 xbt_die("Should not be in this smpi_simulated_main");
298 int __attribute__((weak)) main(int argc, char** argv) {
299 return smpi_main(smpi_simulated_main,argc,argv);
302 int __attribute__((weak)) MAIN__(){
303 return smpi_main(smpi_simulated_main,xargc, xargv);
306 int smpi_main(int (*realmain) (int argc, char *argv[]),int argc, char *argv[])
308 srand(SMPI_RAND_SEED);
310 if(getenv("SMPI_PRETEND_CC") != NULL) {
311 /* Hack to ensure that smpicc can pretend to be a simple compiler. Particularly handy to pass it to the configuration tools */
315 /* Connect log categories. See xbt/log.c */
316 XBT_LOG_CONNECT(smpi); /* Keep this line as soon as possible in this function: xbt_log_appender_file.c depends on it
317 DO NOT connect this in XBT or so, or it will be useless to xbt_log_appender_file.c */
318 XBT_LOG_CONNECT(smpi_base);
319 XBT_LOG_CONNECT(smpi_bench);
320 XBT_LOG_CONNECT(smpi_coll);
321 XBT_LOG_CONNECT(smpi_comm);
322 XBT_LOG_CONNECT(smpi_group);
323 XBT_LOG_CONNECT(smpi_kernel);
324 XBT_LOG_CONNECT(smpi_mpi);
325 XBT_LOG_CONNECT(smpi_mpi_dt);
326 XBT_LOG_CONNECT(smpi_pmpi);
327 XBT_LOG_CONNECT(smpi_replay);
330 TRACE_global_init(&argc, argv);
333 SIMIX_global_init(&argc, argv);
339 // parse the platform file: get the host list
340 SIMIX_create_environment(argv[1]);
342 SIMIX_function_register_default(realmain);
343 SIMIX_launch_application(argv[2]);
347 /* Clean IO before the run */
356 if (surf_cfg_get_int("smpi/display_timing"))
357 XBT_INFO("Simulation time: %g seconds.", SIMIX_get_clock());
359 smpi_global_destroy();