#include "private.h"
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_base, smpi, "Logging specific to SMPI (base)");
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_base, smpi,
+ "Logging specific to SMPI (base)");
XBT_LOG_EXTERNAL_CATEGORY(smpi_base);
XBT_LOG_EXTERNAL_CATEGORY(smpi_bench);
XBT_LOG_EXTERNAL_CATEGORY(smpi_kernel);
smpi_mpi_global_t smpi_mpi_global = NULL;
-void smpi_mpi_land_func(void *a, void *b, int *length, MPI_Datatype *datatype);
+void smpi_mpi_land_func(void *a, void *b, int *length,
+ MPI_Datatype * datatype);
-void smpi_mpi_land_func(void *a, void *b, int *length, MPI_Datatype *datatype)
+void smpi_mpi_land_func(void *a, void *b, int *length,
+ MPI_Datatype * datatype)
{
- int i;
- if (*datatype == smpi_mpi_global->mpi_int) {
- int *x = a, *y = b;
- for (i = 0; i < *length; i++) {
- y[i] = x[i] && y[i];
- }
- }
+ int i;
+ if (*datatype == smpi_mpi_global->mpi_int) {
+ int *x = a, *y = b;
+ for (i = 0; i < *length; i++) {
+ y[i] = x[i] && y[i];
+ }
+ }
}
-void smpi_mpi_sum_func(void *a, void *b, int *length, MPI_Datatype *datatype);
+void smpi_mpi_sum_func(void *a, void *b, int *length,
+ MPI_Datatype * datatype);
-void smpi_mpi_sum_func(void *a, void *b, int *length, MPI_Datatype *datatype)
+void smpi_mpi_sum_func(void *a, void *b, int *length, MPI_Datatype * datatype)
{
- int i;
- if (*datatype == smpi_mpi_global->mpi_int) {
- int *x = a, *y = b;
- for (i = 0; i < *length; i++) {
- y[i] = x[i] + y[i];
- }
- }
+ int i;
+ if (*datatype == smpi_mpi_global->mpi_int) {
+ int *x = a, *y = b;
+ for (i = 0; i < *length; i++) {
+ y[i] = x[i] + y[i];
+ }
+ }
}
int smpi_mpi_comm_rank(smpi_mpi_communicator_t comm)
{
- return comm->index_to_rank_map[smpi_host_index()];
+ return comm->index_to_rank_map[smpi_host_index()];
}
-void smpi_mpi_init()
+void smpi_init_process()
{
- smx_host_t host;
- smx_host_t *hosts;
- int host_count;
- int i;
- smpi_host_data_t hdata;
-
- /* Connect our log channels: that must be done manually under windows */
- /* (should be done only once, not for each process) */
- XBT_LOG_CONNECT(smpi_base, smpi);
- XBT_LOG_CONNECT(smpi_bench, smpi);
- XBT_LOG_CONNECT(smpi_kernel, smpi);
- XBT_LOG_CONNECT(smpi_mpi, smpi);
- XBT_LOG_CONNECT(smpi_receiver, smpi);
- XBT_LOG_CONNECT(smpi_sender, smpi);
- XBT_LOG_CONNECT(smpi_util, smpi);
-
- SIMIX_mutex_lock(smpi_global->running_hosts_count_mutex);
- smpi_global->running_hosts_count++;
- SIMIX_mutex_unlock(smpi_global->running_hosts_count_mutex);
-
- // initialize some local variables
- host = SIMIX_host_self();
- hosts = SIMIX_host_get_table();
- host_count = SIMIX_host_get_number();
-
- hdata = xbt_new(s_smpi_host_data_t, 1);
-
- for (i = 0; i < host_count && host != hosts[i]; i ++);
-
- hdata->index = i;
- hdata->mutex = SIMIX_mutex_init();
- hdata->cond = SIMIX_cond_init();
-
- SIMIX_host_set_data(host, hdata);
-
- // node 0 sets the globals
- if (0 == i) {
-
- smpi_global->hosts = hosts;
- smpi_global->host_count = host_count;
-
- smpi_mpi_global = xbt_new(s_smpi_mpi_global_t, 1);
-
- // global communicator
- smpi_mpi_global->mpi_comm_world = xbt_new(s_smpi_mpi_communicator_t, 1);
- smpi_mpi_global->mpi_comm_world->size = host_count;
- smpi_mpi_global->mpi_comm_world->barrier_count = 0;
- smpi_mpi_global->mpi_comm_world->barrier_mutex = SIMIX_mutex_init();
- smpi_mpi_global->mpi_comm_world->barrier_cond = SIMIX_cond_init();
- smpi_mpi_global->mpi_comm_world->rank_to_index_map = xbt_new(int, host_count);
- smpi_mpi_global->mpi_comm_world->index_to_rank_map = xbt_new(int, host_count);
- for (i = 0; i < host_count; i++) {
- smpi_mpi_global->mpi_comm_world->rank_to_index_map[i] = i;
- smpi_mpi_global->mpi_comm_world->index_to_rank_map[i] = i;
- }
-
- // mpi datatypes
- smpi_mpi_global->mpi_byte = xbt_new(s_smpi_mpi_datatype_t, 1);
- smpi_mpi_global->mpi_byte->size = (size_t)1;
- smpi_mpi_global->mpi_int = xbt_new(s_smpi_mpi_datatype_t, 1);
- smpi_mpi_global->mpi_int->size = sizeof(int);
- smpi_mpi_global->mpi_double = xbt_new(s_smpi_mpi_datatype_t, 1);
- smpi_mpi_global->mpi_double->size = sizeof(double);
-
- // mpi operations
- smpi_mpi_global->mpi_land = xbt_new(s_smpi_mpi_op_t, 1);
- smpi_mpi_global->mpi_land->func = smpi_mpi_land_func;
- smpi_mpi_global->mpi_sum = xbt_new(s_smpi_mpi_op_t, 1);
- smpi_mpi_global->mpi_sum->func = smpi_mpi_sum_func;
-
- // signal all nodes to perform initialization
- SIMIX_mutex_lock(smpi_global->start_stop_mutex);
- smpi_global->root_ready = 1;
- SIMIX_cond_broadcast(smpi_global->start_stop_cond);
- SIMIX_mutex_unlock(smpi_global->start_stop_mutex);
-
- } else {
-
- // make sure root is done before own initialization
- SIMIX_mutex_lock(smpi_global->start_stop_mutex);
- while (!smpi_global->root_ready) {
- SIMIX_cond_wait(smpi_global->start_stop_cond, smpi_global->start_stop_mutex);
- }
- SIMIX_mutex_unlock(smpi_global->start_stop_mutex);
-
- }
-
- // wait for all nodes to signal initializatin complete
- SIMIX_mutex_lock(smpi_global->start_stop_mutex);
- smpi_global->ready_process_count++;
- if (smpi_global->ready_process_count >= 3 * host_count) {
- SIMIX_cond_broadcast(smpi_global->start_stop_cond);
- }
- while (smpi_global->ready_process_count < 3 * host_count) {
- SIMIX_cond_wait(smpi_global->start_stop_cond, smpi_global->start_stop_mutex);
- }
- SIMIX_mutex_unlock(smpi_global->start_stop_mutex);
-
- return;
+ smx_host_t host;
+ int i;
+ smpi_host_data_t hdata;
+
+ smpi_global->running_hosts_count++;
+
+ // initialize some local variables
+ host = SIMIX_host_self();
+
+ hdata = xbt_new(s_smpi_host_data_t, 1);
+
+ for (i = 0; i < smpi_global->host_count && host != smpi_global->hosts[i]; i++);
+
+ hdata->index = i;
+ hdata->mutex = SIMIX_mutex_init();
+ hdata->cond = SIMIX_cond_init();
+
+ SIMIX_host_set_data(host, hdata);
+
+ return;
}
void smpi_mpi_finalize()
{
- int i;
+ int i;
- SIMIX_mutex_lock(smpi_global->running_hosts_count_mutex);
- i = --smpi_global->running_hosts_count;
- SIMIX_mutex_unlock(smpi_global->running_hosts_count_mutex);
+ i = --smpi_global->running_hosts_count;
- SIMIX_mutex_lock(smpi_global->start_stop_mutex);
- smpi_global->ready_process_count--;
- SIMIX_mutex_unlock(smpi_global->start_stop_mutex);
+ SIMIX_mutex_destroy(smpi_host_mutex());
+ SIMIX_cond_destroy(smpi_host_cond());
- SIMIX_mutex_destroy(smpi_host_mutex());
- SIMIX_cond_destroy(smpi_host_cond());
+ if (0 >= i) {
- if (0 >= i) {
+ // wake up senders/receivers
+ for (i = 0; i < smpi_global->host_count; i++) {
+ if (SIMIX_process_is_suspended(smpi_global->sender_processes[i])) {
+ SIMIX_process_resume(smpi_global->sender_processes[i]);
+ }
+ if (SIMIX_process_is_suspended(smpi_global->receiver_processes[i])) {
+ SIMIX_process_resume(smpi_global->receiver_processes[i]);
+ }
+ }
- // wake up senders/receivers
- for (i = 0; i < smpi_global->host_count; i++) {
- if (SIMIX_process_is_suspended(smpi_global->sender_processes[i])) {
- SIMIX_process_resume(smpi_global->sender_processes[i]);
- }
- if (SIMIX_process_is_suspended(smpi_global->receiver_processes[i])) {
- SIMIX_process_resume(smpi_global->receiver_processes[i]);
- }
- }
+ SIMIX_mutex_destroy(smpi_mpi_global->mpi_comm_world->barrier_mutex);
+ SIMIX_cond_destroy(smpi_mpi_global->mpi_comm_world->barrier_cond);
+ xbt_free(smpi_mpi_global->mpi_comm_world);
- SIMIX_mutex_destroy(smpi_mpi_global->mpi_comm_world->barrier_mutex);
- SIMIX_cond_destroy(smpi_mpi_global->mpi_comm_world->barrier_cond);
- xbt_free(smpi_mpi_global->mpi_comm_world);
+ xbt_free(smpi_mpi_global->mpi_byte);
+ xbt_free(smpi_mpi_global->mpi_int);
+ xbt_free(smpi_mpi_global->mpi_double);
- xbt_free(smpi_mpi_global->mpi_byte);
- xbt_free(smpi_mpi_global->mpi_int);
- xbt_free(smpi_mpi_global->mpi_double);
+ xbt_free(smpi_mpi_global->mpi_land);
+ xbt_free(smpi_mpi_global->mpi_sum);
- xbt_free(smpi_mpi_global->mpi_land);
- xbt_free(smpi_mpi_global->mpi_sum);
+ xbt_free(smpi_mpi_global);
- xbt_free(smpi_mpi_global);
-
- }
+ }
}
int smpi_mpi_barrier(smpi_mpi_communicator_t comm)
{
- SIMIX_mutex_lock(comm->barrier_mutex);
- ++comm->barrier_count;
- if (comm->barrier_count > comm->size) { // only happens on second barrier...
- comm->barrier_count = 0;
- } else if (comm->barrier_count == comm->size) {
- SIMIX_cond_broadcast(comm->barrier_cond);
- }
- while (comm->barrier_count < comm->size) {
- SIMIX_cond_wait(comm->barrier_cond, comm->barrier_mutex);
- }
- SIMIX_mutex_unlock(comm->barrier_mutex);
-
- return MPI_SUCCESS;
+ SIMIX_mutex_lock(comm->barrier_mutex);
+ ++comm->barrier_count;
+ if (comm->barrier_count > comm->size) { // only happens on second barrier...
+ comm->barrier_count = 0;
+ } else if (comm->barrier_count == comm->size) {
+ SIMIX_cond_broadcast(comm->barrier_cond);
+ }
+ while (comm->barrier_count < comm->size) {
+ SIMIX_cond_wait(comm->barrier_cond, comm->barrier_mutex);
+ }
+ SIMIX_mutex_unlock(comm->barrier_mutex);
+
+ return MPI_SUCCESS;
}
int smpi_mpi_isend(smpi_mpi_request_t request)
{
- int retval = MPI_SUCCESS;
- int index = smpi_host_index();
-
- if (NULL == request) {
- retval = MPI_ERR_INTERN;
- } else {
- SIMIX_mutex_lock(smpi_global->pending_send_request_queues_mutexes[index]);
- xbt_fifo_push(smpi_global->pending_send_request_queues[index], request);
- SIMIX_mutex_unlock(smpi_global->pending_send_request_queues_mutexes[index]);
-
- if (SIMIX_process_is_suspended(smpi_global->sender_processes[index])) {
- SIMIX_process_resume(smpi_global->sender_processes[index]);
- }
- }
-
- return retval;
+ int retval = MPI_SUCCESS;
+ int index = smpi_host_index();
+
+ if (NULL == request) {
+ retval = MPI_ERR_INTERN;
+ } else {
+ xbt_fifo_push(smpi_global->pending_send_request_queues[index], request);
+
+ if (SIMIX_process_is_suspended(smpi_global->sender_processes[index])) {
+ SIMIX_process_resume(smpi_global->sender_processes[index]);
+ }
+ }
+
+ return retval;
}
int smpi_mpi_irecv(smpi_mpi_request_t request)
{
- int retval = MPI_SUCCESS;
- int index = smpi_host_index();
-
- if (NULL == request) {
- retval = MPI_ERR_INTERN;
- } else {
- SIMIX_mutex_lock(smpi_global->pending_recv_request_queues_mutexes[index]);
- xbt_fifo_push(smpi_global->pending_recv_request_queues[index], request);
- SIMIX_mutex_unlock(smpi_global->pending_recv_request_queues_mutexes[index]);
-
- if (SIMIX_process_is_suspended(smpi_global->receiver_processes[index])) {
- SIMIX_process_resume(smpi_global->receiver_processes[index]);
- }
- }
-
- return retval;
+ int retval = MPI_SUCCESS;
+ int index = smpi_host_index();
+
+ if (NULL == request) {
+ retval = MPI_ERR_INTERN;
+ } else {
+ xbt_fifo_push(smpi_global->pending_recv_request_queues[index], request);
+
+ if (SIMIX_process_is_suspended(smpi_global->receiver_processes[index])) {
+ SIMIX_process_resume(smpi_global->receiver_processes[index]);
+ }
+ }
+
+ return retval;
}
-int smpi_mpi_wait(smpi_mpi_request_t request, smpi_mpi_status_t *status)
+int smpi_mpi_wait(smpi_mpi_request_t request, smpi_mpi_status_t * status)
{
- int retval = MPI_SUCCESS;
-
- if (NULL == request) {
- retval = MPI_ERR_INTERN;
- } else {
- SIMIX_mutex_lock(request->mutex);
- while (!request->completed) {
- SIMIX_cond_wait(request->cond, request->mutex);
- }
- if (NULL != status) {
- status->MPI_SOURCE = request->src;
- status->MPI_TAG = request->tag;
- status->MPI_ERROR = MPI_SUCCESS;
- }
- SIMIX_mutex_unlock(request->mutex);
- }
-
- return retval;
+ int retval = MPI_SUCCESS;
+
+ if (NULL == request) {
+ retval = MPI_ERR_INTERN;
+ } else {
+ SIMIX_mutex_lock(request->mutex);
+ while (!request->completed) {
+ SIMIX_cond_wait(request->cond, request->mutex);
+ }
+ if (NULL != status) {
+ status->MPI_SOURCE = request->src;
+ status->MPI_TAG = request->tag;
+ status->MPI_ERROR = MPI_SUCCESS;
+ }
+ SIMIX_mutex_unlock(request->mutex);
+ }
+
+ return retval;
}
