#include "private.h"
-SMPI_MPI_Global_t smpi_mpi_global = NULL;
-
-void smpi_mpi_land_func(void *x, void *y, void *z)
+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);
+XBT_LOG_EXTERNAL_CATEGORY(smpi_mpi);
+XBT_LOG_EXTERNAL_CATEGORY(smpi_receiver);
+XBT_LOG_EXTERNAL_CATEGORY(smpi_sender);
+XBT_LOG_EXTERNAL_CATEGORY(smpi_util);
+
+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)
{
- *(int *)z = *(int *)x && *(int *)y;
+ 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 *x, void *y, void *z)
+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 *)z = *(int *)x + *(int *)y;
+ 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 inline smpi_mpi_comm_size(smpi_mpi_communicator_t comm)
+int smpi_mpi_comm_rank(smpi_mpi_communicator_t comm)
{
- return comm->size;
+ return comm->index_to_rank_map[smpi_host_index()];
}
-// FIXME: smarter algorithm?
-int smpi_mpi_comm_rank(smpi_mpi_communicator_t comm, smx_host_t host)
+void smpi_init_process()
{
- int i;
+ smx_host_t host;
+ int i;
+ smpi_host_data_t hdata;
- for(i = comm->size - 1; i > 0 && host != comm->hosts[i]; i--);
+ smpi_global->running_hosts_count++;
- return i;
-}
+ // initialize some local variables
+ host = SIMIX_host_self();
-int inline smpi_mpi_comm_rank_self(smpi_mpi_communicator_t comm)
-{
- return smpi_mpi_comm_rank(comm, SIMIX_host_self());
-}
+ hdata = xbt_new(s_smpi_host_data_t, 1);
-void smpi_mpi_init()
-{
- smx_process_t process;
- smx_host_t host;
- smx_host_t *hosts;
- int size;
-
- 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
- process = SIMIX_process_self();
- host = SIMIX_host_self();
- hosts = SIMIX_host_get_table();
- size = SIMIX_host_get_number();
-
- // node 0 sets the globals
- if (host == hosts[0]) {
-
- 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 = size;
- smpi_mpi_global->mpi_comm_world->hosts = hosts;
- smpi_mpi_global->mpi_comm_world->processes = xbt_new(smx_process_t, size);
- smpi_mpi_global->mpi_comm_world->processes[0] = process;
- 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();
-
- // 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);
- if (!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);
-
- smpi_mpi_global->mpi_comm_world->processes[smpi_mpi_comm_rank_self(smpi_mpi_global->mpi_comm_world)] = process;
- }
-
- // 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 * size) {
- SIMIX_cond_wait(smpi_global->start_stop_cond, smpi_global->start_stop_mutex);
- } else {
- SIMIX_cond_broadcast(smpi_global->start_stop_cond);
- }
- SIMIX_mutex_unlock(smpi_global->start_stop_mutex);
-
- return;
+ 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());
- if (0 >= i) {
+ if (0 >= i) {
- // wake up senders/receivers
- for (i = 0; i < smpi_mpi_global->mpi_comm_world->size; 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->processes);
- 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);
- }
+ }
}
-void smpi_barrier(smpi_mpi_communicator_t comm)
+int smpi_mpi_barrier(smpi_mpi_communicator_t comm)
{
- SIMIX_mutex_lock(comm->barrier_mutex);
- if(++comm->barrier_count < comm->size) {
- SIMIX_cond_wait(comm->barrier_cond, comm->barrier_mutex);
- } else {
- comm->barrier_count = 0;
- SIMIX_cond_broadcast(comm->barrier_cond);
- }
- SIMIX_mutex_unlock(comm->barrier_mutex);
-
- return;
-}
-
-int smpi_create_request(void *buf, int count, smpi_mpi_datatype_t datatype,
- int src, int dst, int tag, smpi_mpi_communicator_t comm, smpi_mpi_request_t *request)
-{
- int retval = MPI_SUCCESS;
-
- *request = NULL;
-
- if (0 > count) {
- retval = MPI_ERR_COUNT;
- } else if (NULL == buf) {
- retval = MPI_ERR_INTERN;
- } else if (NULL == datatype) {
- retval = MPI_ERR_TYPE;
- } else if (NULL == comm) {
- retval = MPI_ERR_COMM;
- } else if (MPI_ANY_SOURCE != src && (0 > src || comm->size <= src)) {
- retval = MPI_ERR_RANK;
- } else if (0 > dst || comm->size <= dst) {
- retval = MPI_ERR_RANK;
- } else if (0 > tag) {
- retval = MPI_ERR_TAG;
- } else {
- *request = xbt_mallocator_get(smpi_global->request_mallocator);
- (*request)->comm = comm;
- (*request)->src = src;
- (*request)->dst = dst;
- (*request)->tag = tag;
- (*request)->buf = buf;
- (*request)->count = count;
- (*request)->datatype = datatype;
- }
- return retval;
+ 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_isend(smpi_mpi_request_t request)
+int smpi_mpi_isend(smpi_mpi_request_t request)
{
- int retval = MPI_SUCCESS;
- int rank = smpi_mpi_comm_rank_self(smpi_mpi_global->mpi_comm_world);
+ int retval = MPI_SUCCESS;
+ int index = smpi_host_index();
- if (NULL != request) {
- SIMIX_mutex_lock(smpi_global->pending_send_request_queues_mutexes[rank]);
- xbt_fifo_push(smpi_global->pending_send_request_queues[rank], request);
- SIMIX_mutex_unlock(smpi_global->pending_send_request_queues_mutexes[rank]);
- }
+ 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[rank])) {
- SIMIX_process_resume(smpi_global->sender_processes[rank]);
- }
+ if (SIMIX_process_is_suspended(smpi_global->sender_processes[index])) {
+ SIMIX_process_resume(smpi_global->sender_processes[index]);
+ }
+ }
- return retval;
+ return retval;
}
-int smpi_irecv(smpi_mpi_request_t request)
+int smpi_mpi_irecv(smpi_mpi_request_t request)
{
- int retval = MPI_SUCCESS;
- int rank = smpi_mpi_comm_rank_self(smpi_mpi_global->mpi_comm_world);
+ int retval = MPI_SUCCESS;
+ int index = smpi_host_index();
- if (NULL != request) {
- SIMIX_mutex_lock(smpi_global->pending_recv_request_queues_mutexes[rank]);
- xbt_fifo_push(smpi_global->pending_recv_request_queues[rank], request);
- SIMIX_mutex_unlock(smpi_global->pending_recv_request_queues_mutexes[rank]);
- }
+ 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[rank])) {
- SIMIX_process_resume(smpi_global->receiver_processes[rank]);
- }
+ if (SIMIX_process_is_suspended(smpi_global->receiver_processes[index])) {
+ SIMIX_process_resume(smpi_global->receiver_processes[index]);
+ }
+ }
- return retval;
+ return retval;
}
-int smpi_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)
{
- if (NULL != request) {
- SIMIX_mutex_lock(request->mutex);
- if (!request->completed) {
- SIMIX_cond_wait(request->cond, request->mutex);
- }
- if (NULL != status) {
- status->MPI_SOURCE = request->src;
- }
- SIMIX_mutex_unlock(request->mutex);
- }
-
- return MPI_SUCCESS;
+ 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;
}
