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"
16 #include "simgrid/sg_config.h"
19 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_kernel, smpi,
20 "Logging specific to SMPI (kernel)");
22 typedef struct s_smpi_process_data {
27 smx_rdv_t mailbox_small;
31 void *data; /* user data */
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;
38 int MPI_UNIVERSE_SIZE;
40 MPI_Errhandler* MPI_ERRORS_RETURN = NULL;
41 MPI_Errhandler* MPI_ERRORS_ARE_FATAL = NULL;
42 MPI_Errhandler* MPI_ERRHANDLER_NULL = NULL;
44 #define MAILBOX_NAME_MAXLEN (5 + sizeof(int) * 2 + 1)
46 static char* get_mailbox_name(char* str, int index) {
47 snprintf(str, MAILBOX_NAME_MAXLEN, "SMPI-%0*x", (int)(sizeof(int) * 2), index);
51 static char* get_mailbox_name_small(char* str, int index) {
52 snprintf(str, MAILBOX_NAME_MAXLEN, "small%0*x", (int)(sizeof(int) * 2), index);
56 void smpi_process_init(int *argc, char ***argv)
59 smpi_process_data_t data;
63 proc = SIMIX_process_self();
64 index = atoi((*argv)[1]);
65 data = smpi_process_remote_data(index);
66 simcall_process_set_data(proc, data);
69 memmove(&(*argv)[1], &(*argv)[2], sizeof(char *) * (*argc - 2));
70 (*argv)[(*argc) - 1] = NULL;
75 simcall_rdv_set_receiver(data->mailbox_small, proc);// set the process attached to the mailbox
76 XBT_DEBUG("<%d> New process in the game: %p", index, proc);
80 void smpi_process_destroy(void)
82 int index = smpi_process_index();
83 process_data[index]->index=-100;
84 XBT_DEBUG("<%d> Process left the game", index);
88 * @brief Prepares the current process for termination.
90 void smpi_process_finalize(void)
92 // wait for all pending asynchronous comms to finish
93 while (SIMIX_process_has_pending_comms(SIMIX_process_self())) {
94 simcall_process_sleep(0.01);
99 * @brief Check if a process is finalized
101 int smpi_process_finalized()
103 return (smpi_process_index()==-100);
104 // If finalized, this value has been set to -100;
109 int smpi_process_argc(void) {
110 smpi_process_data_t data = smpi_process_data();
112 return data->argc ? *(data->argc) - 1 : 0;
115 int smpi_process_getarg(integer* index, char* dst, ftnlen len) {
116 smpi_process_data_t data = smpi_process_data();
120 if(!data->argc || !data->argv
121 || *index < 1 || *index >= *(data->argc)) {
124 arg = (*data->argv)[*index];
125 for(i = 0; i < len && arg[i] != '\0'; i++) {
128 for(; i < len; i++) {
134 int smpi_global_size(void) {
135 char* value = getenv("SMPI_GLOBAL_SIZE");
138 fprintf(stderr, "Please set env var SMPI_GLOBAL_SIZE to expected number of processes.\n");
145 smpi_process_data_t smpi_process_data(void)
147 return SIMIX_process_self_get_data(SIMIX_process_self());
150 smpi_process_data_t smpi_process_remote_data(int index)
152 return process_data[index];
155 void smpi_process_set_user_data(void *data)
157 smpi_process_data_t process_data = smpi_process_data();
158 process_data->data = data;
161 void* smpi_process_get_user_data(){
162 smpi_process_data_t process_data = smpi_process_data();
163 return process_data->data;
166 int smpi_process_count(void)
168 return process_count;
171 int smpi_process_index(void)
173 smpi_process_data_t data = smpi_process_data();
174 //return -1 if not initialized
175 return data? data->index : MPI_UNDEFINED;
178 smx_rdv_t smpi_process_mailbox(void) {
179 smpi_process_data_t data = smpi_process_data();
181 return data->mailbox;
184 smx_rdv_t smpi_process_mailbox_small(void) {
185 smpi_process_data_t data = smpi_process_data();
187 return data->mailbox_small;
190 smx_rdv_t smpi_process_remote_mailbox(int index) {
191 smpi_process_data_t data = smpi_process_remote_data(index);
193 return data->mailbox;
197 smx_rdv_t smpi_process_remote_mailbox_small(int index) {
198 smpi_process_data_t data = smpi_process_remote_data(index);
200 return data->mailbox_small;
203 xbt_os_timer_t smpi_process_timer(void)
205 smpi_process_data_t data = smpi_process_data();
210 void smpi_process_simulated_start(void) {
211 smpi_process_data_t data = smpi_process_data();
213 data->simulated = SIMIX_get_clock();
216 double smpi_process_simulated_elapsed(void) {
217 smpi_process_data_t data = smpi_process_data();
219 return SIMIX_get_clock() - data->simulated;
222 MPI_Comm smpi_process_comm_self(void) {
223 smpi_process_data_t data = smpi_process_data();
225 return data->comm_self;
228 void print_request(const char *message, MPI_Request request) {
229 XBT_DEBUG("%s request %p [buf = %p, size = %zu, src = %d, dst = %d, tag = %d, flags = %x]",
230 message, request, request->buf, request->size,
231 request->src, request->dst, request->tag, request->flags);
234 static void SMPI_comm_copy_buffer_callback(smx_action_t comm, void* buff, size_t buff_size)
236 XBT_DEBUG("Copy the data over");
237 memcpy(comm->comm.dst_buff, buff, buff_size);
238 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
240 //It seems that the request is used after the call there this should
241 //be free somewhereelse but where???
242 //xbt_free(comm->comm.src_data);// inside SMPI the request is keep
243 //inside the user data and should be free
244 comm->comm.src_buff = NULL;
248 void smpi_global_init(void)
252 char name[MAILBOX_NAME_MAXLEN];
254 SIMIX_comm_set_copy_data_callback(&SMPI_comm_copy_buffer_callback);
255 process_count = SIMIX_process_count();
256 process_data = xbt_new(smpi_process_data_t, process_count);
257 for (i = 0; i < process_count; i++) {
258 process_data[i] = xbt_new(s_smpi_process_data_t, 1);
259 process_data[i]->index = i;
260 process_data[i]->argc = NULL;
261 process_data[i]->argv = NULL;
262 process_data[i]->mailbox = simcall_rdv_create(get_mailbox_name(name, i));
263 process_data[i]->mailbox_small = simcall_rdv_create(get_mailbox_name_small(name, i));
264 process_data[i]->timer = xbt_os_timer_new();
265 group = smpi_group_new(1);
266 process_data[i]->comm_self = smpi_comm_new(group);
267 smpi_group_set_mapping(group, i, 0);
269 group = smpi_group_new(process_count);
270 MPI_COMM_WORLD = smpi_comm_new(group);
271 MPI_UNIVERSE_SIZE = smpi_comm_size(MPI_COMM_WORLD);
272 for (i = 0; i < process_count; i++) {
273 smpi_group_set_mapping(group, i, i);
277 void smpi_global_destroy(void)
279 int count = smpi_process_count();
282 smpi_bench_destroy();
283 smpi_group_unuse(smpi_comm_group(MPI_COMM_WORLD));
284 smpi_comm_destroy(MPI_COMM_WORLD);
285 MPI_COMM_WORLD = MPI_COMM_NULL;
286 for (i = 0; i < count; i++) {
287 smpi_group_unuse(smpi_comm_group(process_data[i]->comm_self));
288 smpi_comm_destroy(process_data[i]->comm_self);
289 xbt_os_timer_free(process_data[i]->timer);
290 simcall_rdv_destroy(process_data[i]->mailbox);
291 simcall_rdv_destroy(process_data[i]->mailbox_small);
292 xbt_free(process_data[i]);
294 xbt_free(process_data);
300 /* Fortran specific stuff */
301 /* With smpicc, the following weak symbols are used */
302 /* With smpiff, the following weak symbols are replaced by those in libf2c */
303 int __attribute__((weak)) xargc;
304 char** __attribute__((weak)) xargv;
307 void __attribute__((weak)) user_main_(){
308 xbt_die("Should not be in this smpi_simulated_main");
311 int __attribute__((weak)) smpi_simulated_main_(int argc, char** argv) {
312 smpi_process_init(&argc, &argv);
314 //xbt_die("Should not be in this smpi_simulated_main");
318 int __attribute__((weak)) main(int argc, char** argv) {
319 return smpi_main(smpi_simulated_main_,argc,argv);
322 int __attribute__((weak)) MAIN__(){
323 return smpi_main(smpi_simulated_main_,xargc, xargv);
327 int smpi_main(int (*realmain) (int argc, char *argv[]),int argc, char *argv[])
329 srand(SMPI_RAND_SEED);
331 if(getenv("SMPI_PRETEND_CC") != NULL) {
332 /* Hack to ensure that smpicc can pretend to be a simple compiler. Particularly handy to pass it to the configuration tools */
336 /* Connect log categories. See xbt/log.c */
337 XBT_LOG_CONNECT(smpi); /* Keep this line as soon as possible in this
338 function: xbt_log_appender_file.c depends on it
339 DO NOT connect this in XBT or so, or it will be
340 useless to xbt_log_appender_file.c */
342 XBT_LOG_CONNECT(instr_smpi);
344 XBT_LOG_CONNECT(smpi_base);
345 XBT_LOG_CONNECT(smpi_bench);
346 XBT_LOG_CONNECT(smpi_coll);
347 XBT_LOG_CONNECT(smpi_comm);
348 XBT_LOG_CONNECT(smpi_group);
349 XBT_LOG_CONNECT(smpi_kernel);
350 XBT_LOG_CONNECT(smpi_mpi);
351 XBT_LOG_CONNECT(smpi_mpi_dt);
352 XBT_LOG_CONNECT(smpi_pmpi);
353 XBT_LOG_CONNECT(smpi_replay);
354 XBT_LOG_CONNECT(smpi_colls);
357 TRACE_global_init(&argc, argv);
359 TRACE_add_start_function(TRACE_smpi_alloc);
360 TRACE_add_end_function(TRACE_smpi_release);
363 SIMIX_global_init(&argc, argv);
369 // parse the platform file: get the host list
370 SIMIX_create_environment(argv[1]);
372 SIMIX_function_register_default(realmain);
373 SIMIX_launch_application(argv[2]);
375 int gather_id = find_coll_description(mpi_coll_gather_description,
376 sg_cfg_get_string("smpi/gather"));
377 mpi_coll_gather_fun = (int (*)(void *, int, MPI_Datatype,
378 void*, int, MPI_Datatype, int, MPI_Comm))
379 mpi_coll_gather_description[gather_id].coll;
381 int allgather_id = find_coll_description(mpi_coll_allgather_description,
382 sg_cfg_get_string("smpi/allgather"));
383 mpi_coll_allgather_fun = (int (*)(void *, int, MPI_Datatype,
384 void*, int, MPI_Datatype, MPI_Comm))
385 mpi_coll_allgather_description[allgather_id].coll;
387 int allgatherv_id = find_coll_description(mpi_coll_allgatherv_description,
388 sg_cfg_get_string("smpi/allgatherv"));
389 mpi_coll_allgatherv_fun = (int (*)(void *, int, MPI_Datatype,
390 void*, int*, int*, MPI_Datatype, MPI_Comm))
391 mpi_coll_allgatherv_description[allgatherv_id].coll;
393 int allreduce_id = find_coll_description(mpi_coll_allreduce_description,
394 sg_cfg_get_string("smpi/allreduce"));
395 mpi_coll_allreduce_fun = (int (*)(void *sbuf, void *rbuf, int rcount, \
396 MPI_Datatype dtype, MPI_Op op, MPI_Comm comm))
397 mpi_coll_allreduce_description[allreduce_id].coll;
399 int alltoall_id = find_coll_description(mpi_coll_alltoall_description,
400 sg_cfg_get_string("smpi/alltoall"));
401 mpi_coll_alltoall_fun = (int (*)(void *, int, MPI_Datatype,
402 void*, int, MPI_Datatype, MPI_Comm))
403 mpi_coll_alltoall_description[alltoall_id].coll;
405 int alltoallv_id = find_coll_description(mpi_coll_alltoallv_description,
406 sg_cfg_get_string("smpi/alltoallv"));
407 mpi_coll_alltoallv_fun = (int (*)(void *, int*, int*, MPI_Datatype,
408 void*, int*, int*, MPI_Datatype, MPI_Comm))
409 mpi_coll_alltoallv_description[alltoallv_id].coll;
411 int bcast_id = find_coll_description(mpi_coll_bcast_description,
412 sg_cfg_get_string("smpi/bcast"));
413 mpi_coll_bcast_fun = (int (*)(void *buf, int count, MPI_Datatype datatype, \
414 int root, MPI_Comm com))
415 mpi_coll_bcast_description[bcast_id].coll;
417 int reduce_id = find_coll_description(mpi_coll_reduce_description,
418 sg_cfg_get_string("smpi/reduce"));
419 mpi_coll_reduce_fun = (int (*)(void *buf, void *rbuf, int count, MPI_Datatype datatype, \
420 MPI_Op op, int root, MPI_Comm comm))
421 mpi_coll_reduce_description[reduce_id].coll;
423 int reduce_scatter_id = find_coll_description(mpi_coll_reduce_scatter_description,
424 sg_cfg_get_string("smpi/reduce_scatter"));
425 mpi_coll_reduce_scatter_fun = (int (*)(void *sbuf, void *rbuf, int *rcounts,\
426 MPI_Datatype dtype,MPI_Op op,MPI_Comm comm))
427 mpi_coll_reduce_scatter_description[reduce_scatter_id].coll;
429 int scatter_id = find_coll_description(mpi_coll_scatter_description,
430 sg_cfg_get_string("smpi/scatter"));
431 mpi_coll_scatter_fun = (int (*)(void *sendbuf, int sendcount, MPI_Datatype sendtype,\
432 void *recvbuf, int recvcount, MPI_Datatype recvtype,\
433 int root, MPI_Comm comm))
434 mpi_coll_scatter_description[scatter_id].coll;
436 int barrier_id = find_coll_description(mpi_coll_barrier_description,
437 sg_cfg_get_string("smpi/barrier"));
438 mpi_coll_barrier_fun = (int (*)(MPI_Comm comm))
439 mpi_coll_barrier_description[barrier_id].coll;
443 /* Clean IO before the run */
448 MC_modelcheck_safety();
452 if (sg_cfg_get_boolean("smpi/display_timing"))
453 XBT_INFO("Simulation time: %g seconds.", SIMIX_get_clock());
455 smpi_global_destroy();