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_process_index()];
50 void smpi_process_init(int *argc, char***argv)
52 smpi_process_data_t pdata;
54 // initialize some local variables
56 pdata = xbt_new(s_smpi_process_data_t, 1);
57 SIMIX_process_set_data(SIMIX_process_self(),pdata);
59 /* get rank from command line, and remove it from argv */
60 pdata->index = atoi( (*argv)[1] );
62 memmove((*argv)[1],(*argv)[2], sizeof(char*)* (*argc-2));
63 (*argv)[ (*argc)-1] = NULL;
67 pdata->mutex = SIMIX_mutex_init();
68 pdata->cond = SIMIX_cond_init();
71 pdata->pending_recv_request_queue = xbt_fifo_new();
72 pdata->pending_send_request_queue = xbt_fifo_new();
73 pdata->received_message_queue = xbt_fifo_new();
75 pdata->main = SIMIX_process_self();
76 pdata->sender = SIMIX_process_create("smpi_sender",
78 SIMIX_host_get_name(SIMIX_host_self()), 0, NULL,
80 pdata->receiver = SIMIX_process_create("smpi_receiver",
82 SIMIX_host_get_name(SIMIX_host_self()), 0, NULL,
85 smpi_global->main_processes[pdata->index] = SIMIX_process_self();
89 void smpi_process_finalize()
91 smpi_process_data_t pdata = SIMIX_process_get_data(SIMIX_process_self());
93 pdata->finalize = 2; /* Tell sender and receiver to quit */
94 SIMIX_process_resume(pdata->sender);
95 SIMIX_process_resume(pdata->receiver);
96 while (pdata->finalize>0) { /* wait until it's done */
97 SIMIX_cond_wait(pdata->cond,pdata->mutex);
100 SIMIX_mutex_destroy(pdata->mutex);
101 SIMIX_cond_destroy(pdata->cond);
102 xbt_fifo_free(pdata->pending_recv_request_queue);
103 xbt_fifo_free(pdata->pending_send_request_queue);
104 xbt_fifo_free(pdata->received_message_queue);
107 int smpi_mpi_barrier(smpi_mpi_communicator_t comm)
110 SIMIX_mutex_lock(comm->barrier_mutex);
111 ++comm->barrier_count;
112 if (comm->barrier_count > comm->size) { // only happens on second barrier...
113 comm->barrier_count = 0;
114 } else if (comm->barrier_count == comm->size) {
115 SIMIX_cond_broadcast(comm->barrier_cond);
117 while (comm->barrier_count < comm->size) {
118 SIMIX_cond_wait(comm->barrier_cond, comm->barrier_mutex);
120 SIMIX_mutex_unlock(comm->barrier_mutex);
125 int smpi_mpi_isend(smpi_mpi_request_t request)
127 smpi_process_data_t pdata = SIMIX_process_get_data(SIMIX_process_self());
128 int retval = MPI_SUCCESS;
130 if (NULL == request) {
131 retval = MPI_ERR_INTERN;
133 xbt_fifo_push(pdata->pending_send_request_queue, request);
134 SIMIX_process_resume(pdata->sender);
140 int smpi_mpi_irecv(smpi_mpi_request_t request)
142 int retval = MPI_SUCCESS;
143 smpi_process_data_t pdata = SIMIX_process_get_data(SIMIX_process_self());
145 if (NULL == request) {
146 retval = MPI_ERR_INTERN;
148 xbt_fifo_push(pdata->pending_recv_request_queue, request);
150 if (SIMIX_process_is_suspended(pdata->receiver)) {
151 SIMIX_process_resume(pdata->receiver);
158 int smpi_mpi_wait(smpi_mpi_request_t request, smpi_mpi_status_t * status)
160 int retval = MPI_SUCCESS;
162 if (NULL == request) {
163 retval = MPI_ERR_INTERN;
165 SIMIX_mutex_lock(request->mutex);
166 while (!request->completed) {
167 SIMIX_cond_wait(request->cond, request->mutex);
169 if (NULL != status) {
170 status->MPI_SOURCE = request->src;
171 status->MPI_TAG = request->tag;
172 status->MPI_ERROR = MPI_SUCCESS;
174 SIMIX_mutex_unlock(request->mutex);