#include "private.h"
-SMPI_MPI_Global_t smpi_mpi_global = NULL;
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_base, smpi, "Logging specific to SMPI (base)");
-void smpi_mpi_land_func(void *x, void *y, void *z)
-{
- *(int *)z = *(int *)x && *(int *)y;
-}
+smpi_mpi_global_t smpi_mpi_global = NULL;
-void smpi_mpi_sum_func(void *x, void *y, void *z)
-{
- *(int *)z = *(int *)x + *(int *)y;
-}
+void smpi_mpi_land_func(void *a, void *b, int *length, MPI_Datatype *datatype);
-int inline smpi_mpi_comm_size(smpi_mpi_communicator_t *comm)
+void smpi_mpi_land_func(void *a, void *b, int *length, MPI_Datatype *datatype)
{
- return comm->size;
+ 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];
+ }
+ }
}
-// FIXME: smarter algorithm?
-int smpi_mpi_comm_rank(smpi_mpi_communicator_t *comm, smx_host_t host)
+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;
-
- for(i = comm->size - 1; i > 0 && host != comm->simdata->hosts[i]; i--);
-
- return 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_rank_self(smpi_mpi_communicator_t *comm)
+int smpi_mpi_comm_rank(smpi_mpi_communicator_t comm)
{
- return smpi_mpi_comm_rank(comm, SIMIX_host_self());
+ return comm->index_to_rank_map[smpi_host_index()];
}
void smpi_mpi_init()
{
- smx_process_t process;
smx_host_t host;
smx_host_t *hosts;
- int size;
-
+ 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
- process = SIMIX_process_self();
- host = SIMIX_host_self();
- hosts = SIMIX_host_get_table();
- size = SIMIX_host_get_number();
+ 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 (host == hosts[0]) {
+ if (0 == i) {
- smpi_mpi_global = xbt_new(s_SMPI_MPI_Global_t, 1);
+ 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(smpi_mpi_communicator_t, 1);
- smpi_mpi_global->mpi_comm_world->size = size;
- smpi_mpi_global->mpi_comm_world->simdata = xbt_new(s_smpi_mpi_communicator_simdata_t, 1);
- smpi_mpi_global->mpi_comm_world->simdata->barrier_count = 0;
- smpi_mpi_global->mpi_comm_world->simdata->barrier_mutex = SIMIX_mutex_init();
- smpi_mpi_global->mpi_comm_world->simdata->barrier_cond = SIMIX_cond_init();
- smpi_mpi_global->mpi_comm_world->simdata->hosts = hosts;
- smpi_mpi_global->mpi_comm_world->simdata->processes = xbt_new(smx_process_t, size);
- smpi_mpi_global->mpi_comm_world->simdata->processes[0] = process;
+ 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(smpi_mpi_datatype_t, 1);
- smpi_mpi_global->mpi_byte->size = (size_t)1;
- smpi_mpi_global->mpi_int = xbt_new(smpi_mpi_datatype_t, 1);
- smpi_mpi_global->mpi_int->size = sizeof(int);
- smpi_mpi_global->mpi_double = xbt_new(smpi_mpi_datatype_t, 1);
- smpi_mpi_global->mpi_double->size = sizeof(double);
+ 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(smpi_mpi_op_t, 1);
- smpi_mpi_global->mpi_land->func = smpi_mpi_land_func;
- smpi_mpi_global->mpi_sum = xbt_new(smpi_mpi_op_t, 1);
- smpi_mpi_global->mpi_sum->func = smpi_mpi_sum_func;
+ 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);
// make sure root is done before own initialization
SIMIX_mutex_lock(smpi_global->start_stop_mutex);
- if (!smpi_global->root_ready) {
+ 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);
- smpi_mpi_global->mpi_comm_world->simdata->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 {
+ 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;
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) {
// wake up senders/receivers
- for (i = 0; i < smpi_mpi_global->mpi_comm_world->size; i++) {
+ 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]);
}
}
}
- // wait for senders/receivers to exit...
- SIMIX_mutex_lock(smpi_global->start_stop_mutex);
- if (smpi_global->ready_process_count > 0) {
- SIMIX_cond_wait(smpi_global->start_stop_cond, smpi_global->start_stop_mutex);
- }
- SIMIX_mutex_unlock(smpi_global->start_stop_mutex);
-
- SIMIX_mutex_destroy(smpi_mpi_global->mpi_comm_world->simdata->barrier_mutex);
- SIMIX_cond_destroy(smpi_mpi_global->mpi_comm_world->simdata->barrier_cond);
- xbt_free(smpi_mpi_global->mpi_comm_world->simdata->processes);
- xbt_free(smpi_mpi_global->mpi_comm_world->simdata);
+ 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_sum);
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->simdata->barrier_mutex);
- if(++comm->simdata->barrier_count < comm->size) {
- SIMIX_cond_wait(comm->simdata->barrier_cond, comm->simdata->barrier_mutex);
- } else {
- comm->simdata->barrier_count = 0;
- SIMIX_cond_broadcast(comm->simdata->barrier_cond);
+ 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->simdata->barrier_mutex);
+ SIMIX_mutex_unlock(comm->barrier_mutex);
- return;
+ return MPI_SUCCESS;
}
-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 smpi_mpi_isend(smpi_mpi_request_t request)
{
int retval = MPI_SUCCESS;
+ int index = smpi_host_index();
- *request = NULL;
-
- if (0 > count) {
- retval = MPI_ERR_COUNT;
- } else if (NULL == buf) {
+ if (NULL == request) {
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;
-}
-
-int smpi_isend(smpi_mpi_request_t *request)
-{
- int retval = MPI_SUCCESS;
- int rank = smpi_mpi_comm_rank_self(smpi_mpi_global->mpi_comm_world);
+ 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 (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 (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;
}
-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 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 {
+ 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[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;
}
-void 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->simdata->mutex);
- if (!request->completed) {
- SIMIX_cond_wait(request->simdata->cond, request->simdata->mutex);
+ 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->simdata->mutex);
+ SIMIX_mutex_unlock(request->mutex);
}
+
+ return retval;
}
