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(int *argc, char***argv)
53 smpi_host_data_t hdata;
55 // initialize some local variables
56 host = SIMIX_host_self();
58 hdata = xbt_new(s_smpi_host_data_t, 1);
59 SIMIX_host_set_data(host, hdata);
60 SIMIX_process_set_data(SIMIX_process_self(),hdata);
62 /* get rank from command line, and remove it from argv */
63 hdata->index = atoi( (*argv)[1] );
65 memmove((*argv)[1],(*argv)[2], sizeof(char*)* (*argc-2));
66 (*argv)[ (*argc)-1] = NULL;
70 hdata->mutex = SIMIX_mutex_init();
71 hdata->cond = SIMIX_cond_init();
74 hdata->pending_recv_request_queue = xbt_fifo_new();
75 hdata->pending_send_request_queue = xbt_fifo_new();
76 hdata->received_message_queue = xbt_fifo_new();
78 hdata->main = SIMIX_process_self();
79 hdata->sender = SIMIX_process_create("smpi_sender",
81 SIMIX_host_get_name(SIMIX_host_self()), 0, NULL,
83 hdata->receiver = SIMIX_process_create("smpi_receiver",
85 SIMIX_host_get_name(SIMIX_host_self()), 0, NULL,
88 smpi_global->main_processes[hdata->index] = SIMIX_process_self();
92 void smpi_process_finalize()
94 smpi_host_data_t hdata = SIMIX_host_get_data(SIMIX_host_self());
96 hdata->finalize = 2; /* Tell sender and receiver to quit */
97 SIMIX_process_resume(hdata->sender);
98 SIMIX_process_resume(hdata->receiver);
99 while (hdata->finalize>0) { /* wait until it's done */
100 SIMIX_cond_wait(hdata->cond,hdata->mutex);
103 SIMIX_mutex_destroy(hdata->mutex);
104 SIMIX_cond_destroy(hdata->cond);
105 xbt_fifo_free(hdata->pending_recv_request_queue);
106 xbt_fifo_free(hdata->pending_send_request_queue);
107 xbt_fifo_free(hdata->received_message_queue);
110 int smpi_mpi_barrier(smpi_mpi_communicator_t comm)
113 SIMIX_mutex_lock(comm->barrier_mutex);
114 ++comm->barrier_count;
115 if (comm->barrier_count > comm->size) { // only happens on second barrier...
116 comm->barrier_count = 0;
117 } else if (comm->barrier_count == comm->size) {
118 SIMIX_cond_broadcast(comm->barrier_cond);
120 while (comm->barrier_count < comm->size) {
121 SIMIX_cond_wait(comm->barrier_cond, comm->barrier_mutex);
123 SIMIX_mutex_unlock(comm->barrier_mutex);
128 int smpi_mpi_isend(smpi_mpi_request_t request)
130 smpi_host_data_t hdata = SIMIX_host_get_data(SIMIX_host_self());
131 int retval = MPI_SUCCESS;
133 if (NULL == request) {
134 retval = MPI_ERR_INTERN;
136 xbt_fifo_push(hdata->pending_send_request_queue, request);
137 SIMIX_process_resume(hdata->sender);
143 int smpi_mpi_irecv(smpi_mpi_request_t request)
145 int retval = MPI_SUCCESS;
146 smpi_host_data_t hdata = SIMIX_host_get_data(SIMIX_host_self());
148 if (NULL == request) {
149 retval = MPI_ERR_INTERN;
151 xbt_fifo_push(hdata->pending_recv_request_queue, request);
153 if (SIMIX_process_is_suspended(hdata->receiver)) {
154 SIMIX_process_resume(hdata->receiver);
161 int smpi_mpi_wait(smpi_mpi_request_t request, smpi_mpi_status_t * status)
163 int retval = MPI_SUCCESS;
165 if (NULL == request) {
166 retval = MPI_ERR_INTERN;
168 SIMIX_mutex_lock(request->mutex);
169 while (!request->completed) {
170 SIMIX_cond_wait(request->cond, request->mutex);
172 if (NULL != status) {
173 status->MPI_SOURCE = request->src;
174 status->MPI_TAG = request->tag;
175 status->MPI_ERROR = MPI_SUCCESS;
177 SIMIX_mutex_unlock(request->mutex);