4 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_base, smpi,
5 "Logging specific to SMPI (base)");
6 XBT_LOG_EXTERNAL_CATEGORY(smpi_base);
7 XBT_LOG_EXTERNAL_CATEGORY(smpi_bench);
8 XBT_LOG_EXTERNAL_CATEGORY(smpi_kernel);
9 XBT_LOG_EXTERNAL_CATEGORY(smpi_mpi);
10 XBT_LOG_EXTERNAL_CATEGORY(smpi_receiver);
11 XBT_LOG_EXTERNAL_CATEGORY(smpi_sender);
12 XBT_LOG_EXTERNAL_CATEGORY(smpi_util);
14 smpi_mpi_global_t smpi_mpi_global = NULL;
16 void smpi_mpi_land_func(void *a, void *b, int *length,
17 MPI_Datatype * datatype);
19 void smpi_mpi_land_func(void *a, void *b, int *length,
20 MPI_Datatype * datatype)
23 if (*datatype == smpi_mpi_global->mpi_int) {
25 for (i = 0; i < *length; i++) {
31 void smpi_mpi_sum_func(void *a, void *b, int *length,
32 MPI_Datatype * datatype);
34 void smpi_mpi_sum_func(void *a, void *b, int *length, MPI_Datatype * datatype)
37 if (*datatype == smpi_mpi_global->mpi_int) {
39 for (i = 0; i < *length; i++) {
45 int smpi_mpi_comm_rank(smpi_mpi_communicator_t comm)
47 return comm->index_to_rank_map[smpi_host_index()];
50 void smpi_process_init()
54 smpi_host_data_t hdata;
56 smpi_global->running_hosts_count++;
58 // initialize some local variables
59 host = SIMIX_host_self();
61 hdata = xbt_new(s_smpi_host_data_t, 1);
62 SIMIX_host_set_data(host, hdata);
63 SIMIX_process_set_data(SIMIX_process_self(),hdata);
65 for (i = 0; i < smpi_global->host_count && host != smpi_global->hosts[i]; i++);
68 hdata->mutex = SIMIX_mutex_init();
69 hdata->cond = SIMIX_cond_init();
72 hdata->pending_recv_request_queue = xbt_fifo_new();
74 hdata->main = SIMIX_process_self();
75 hdata->sender = SIMIX_process_create("smpi_sender",
77 SIMIX_host_get_name(SIMIX_host_self()), 0, NULL,
79 hdata->receiver = SIMIX_process_create("smpi_receiver",
81 SIMIX_host_get_name(SIMIX_host_self()), 0, NULL,
84 smpi_global->main_processes[hdata->index] = SIMIX_process_self();
88 void smpi_process_finalize()
91 smpi_host_data_t hdata = SIMIX_host_get_data(SIMIX_host_self());
93 i = --smpi_global->running_hosts_count;
95 hdata->finalize = 2; /* Tell sender and receiver to quit */
96 SIMIX_process_resume(hdata->sender);
97 SIMIX_process_resume(hdata->receiver);
98 while (hdata->finalize>0) { /* wait until it's done */
99 SIMIX_cond_wait(hdata->cond,hdata->mutex);
102 SIMIX_mutex_destroy(hdata->mutex);
103 SIMIX_cond_destroy(hdata->cond);
104 xbt_fifo_free(hdata->pending_recv_request_queue);
109 // wake up senders/receivers
110 /* MQ: (FIXME) Don't do so: it breaks since some hosts are already gone
111 for (i = 0; i < smpi_global->host_count; i++) {
112 smpi_host_data_t remote_hdata = SIMIX_process_get_data(smpi_global->main_processes[i]);
114 if (SIMIX_process_is_suspended(remote_hdata->sender))
115 SIMIX_process_resume(remote_hdata->sender);
117 if (SIMIX_process_is_suspended(remote_hdata->receiver))
118 SIMIX_process_resume(remote_hdata->receiver);
121 SIMIX_mutex_destroy(smpi_mpi_global->mpi_comm_world->barrier_mutex);
122 SIMIX_cond_destroy(smpi_mpi_global->mpi_comm_world->barrier_cond);
123 xbt_free(smpi_mpi_global->mpi_comm_world);
125 xbt_free(smpi_mpi_global->mpi_byte);
126 xbt_free(smpi_mpi_global->mpi_int);
127 xbt_free(smpi_mpi_global->mpi_double);
129 xbt_free(smpi_mpi_global->mpi_land);
130 xbt_free(smpi_mpi_global->mpi_sum);
132 xbt_free(smpi_mpi_global);
136 int smpi_mpi_barrier(smpi_mpi_communicator_t comm)
139 SIMIX_mutex_lock(comm->barrier_mutex);
140 ++comm->barrier_count;
141 if (comm->barrier_count > comm->size) { // only happens on second barrier...
142 comm->barrier_count = 0;
143 } else if (comm->barrier_count == comm->size) {
144 SIMIX_cond_broadcast(comm->barrier_cond);
146 while (comm->barrier_count < comm->size) {
147 SIMIX_cond_wait(comm->barrier_cond, comm->barrier_mutex);
149 SIMIX_mutex_unlock(comm->barrier_mutex);
154 int smpi_mpi_isend(smpi_mpi_request_t request)
156 smpi_host_data_t hdata = SIMIX_host_get_data(SIMIX_host_self());
157 int retval = MPI_SUCCESS;
159 if (NULL == request) {
160 retval = MPI_ERR_INTERN;
162 xbt_fifo_push(smpi_global->pending_send_request_queues[hdata->index], request);
164 if (SIMIX_process_is_suspended(hdata->sender)) {
165 SIMIX_process_resume(hdata->sender);
172 int smpi_mpi_irecv(smpi_mpi_request_t request)
174 int retval = MPI_SUCCESS;
175 smpi_host_data_t hdata = SIMIX_host_get_data(SIMIX_host_self());
177 if (NULL == request) {
178 retval = MPI_ERR_INTERN;
180 xbt_fifo_push(hdata->pending_recv_request_queue, request);
182 if (SIMIX_process_is_suspended(hdata->receiver)) {
183 SIMIX_process_resume(hdata->receiver);
190 int smpi_mpi_wait(smpi_mpi_request_t request, smpi_mpi_status_t * status)
192 int retval = MPI_SUCCESS;
194 if (NULL == request) {
195 retval = MPI_ERR_INTERN;
197 SIMIX_mutex_lock(request->mutex);
198 while (!request->completed) {
199 SIMIX_cond_wait(request->cond, request->mutex);
201 if (NULL != status) {
202 status->MPI_SOURCE = request->src;
203 status->MPI_TAG = request->tag;
204 status->MPI_ERROR = MPI_SUCCESS;
206 SIMIX_mutex_unlock(request->mutex);