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 // initialize some local variables
57 host = SIMIX_host_self();
59 hdata = xbt_new(s_smpi_host_data_t, 1);
60 SIMIX_host_set_data(host, hdata);
61 SIMIX_process_set_data(SIMIX_process_self(),hdata);
63 for (i = 0; i < smpi_global->host_count && host != smpi_global->hosts[i]; i++);
66 hdata->mutex = SIMIX_mutex_init();
67 hdata->cond = SIMIX_cond_init();
70 hdata->pending_recv_request_queue = xbt_fifo_new();
71 hdata->pending_send_request_queue = xbt_fifo_new();
72 hdata->received_message_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()
90 smpi_host_data_t hdata = SIMIX_host_get_data(SIMIX_host_self());
92 hdata->finalize = 2; /* Tell sender and receiver to quit */
93 SIMIX_process_resume(hdata->sender);
94 SIMIX_process_resume(hdata->receiver);
95 while (hdata->finalize>0) { /* wait until it's done */
96 SIMIX_cond_wait(hdata->cond,hdata->mutex);
99 SIMIX_mutex_destroy(hdata->mutex);
100 SIMIX_cond_destroy(hdata->cond);
101 xbt_fifo_free(hdata->pending_recv_request_queue);
102 xbt_fifo_free(hdata->pending_send_request_queue);
103 xbt_fifo_free(hdata->received_message_queue);
106 int smpi_mpi_barrier(smpi_mpi_communicator_t comm)
109 SIMIX_mutex_lock(comm->barrier_mutex);
110 ++comm->barrier_count;
111 if (comm->barrier_count > comm->size) { // only happens on second barrier...
112 comm->barrier_count = 0;
113 } else if (comm->barrier_count == comm->size) {
114 SIMIX_cond_broadcast(comm->barrier_cond);
116 while (comm->barrier_count < comm->size) {
117 SIMIX_cond_wait(comm->barrier_cond, comm->barrier_mutex);
119 SIMIX_mutex_unlock(comm->barrier_mutex);
124 int smpi_mpi_isend(smpi_mpi_request_t request)
126 smpi_host_data_t hdata = SIMIX_host_get_data(SIMIX_host_self());
127 int retval = MPI_SUCCESS;
129 if (NULL == request) {
130 retval = MPI_ERR_INTERN;
132 xbt_fifo_push(hdata->pending_send_request_queue, request);
133 SIMIX_process_resume(hdata->sender);
139 int smpi_mpi_irecv(smpi_mpi_request_t request)
141 int retval = MPI_SUCCESS;
142 smpi_host_data_t hdata = SIMIX_host_get_data(SIMIX_host_self());
144 if (NULL == request) {
145 retval = MPI_ERR_INTERN;
147 xbt_fifo_push(hdata->pending_recv_request_queue, request);
149 if (SIMIX_process_is_suspended(hdata->receiver)) {
150 SIMIX_process_resume(hdata->receiver);
157 int smpi_mpi_wait(smpi_mpi_request_t request, smpi_mpi_status_t * status)
159 int retval = MPI_SUCCESS;
161 if (NULL == request) {
162 retval = MPI_ERR_INTERN;
164 SIMIX_mutex_lock(request->mutex);
165 while (!request->completed) {
166 SIMIX_cond_wait(request->cond, request->mutex);
168 if (NULL != status) {
169 status->MPI_SOURCE = request->src;
170 status->MPI_TAG = request->tag;
171 status->MPI_ERROR = MPI_SUCCESS;
173 SIMIX_mutex_unlock(request->mutex);