/**
* sum two vectors element-wise
*
- * @param a the first vectors
+ * @param a the first vectors
* @param b the second vectors
* @return the second vector is modified and contains the element-wise sums
**/
for (i = 0; i < *length; i++) {
y[i] = x[i] + y[i];
}
- } else {
- if (*datatype == smpi_mpi_global->mpi_int) {
+ } else if (*datatype == smpi_mpi_global->mpi_int) {
int *x = a, *y = b;
for (i = 0; i < *length; i++) {
y[i] = x[i] + y[i];
}
- } else {
- if (*datatype == smpi_mpi_global->mpi_float) {
+ } else if (*datatype == smpi_mpi_global->mpi_float) {
float *x = a, *y = b;
for (i = 0; i < *length; i++) {
y[i] = x[i] + y[i];
}
- } else {
- if (*datatype == smpi_mpi_global->mpi_double) {
+ } else if (*datatype == smpi_mpi_global->mpi_double) {
double *x = a, *y = b;
for (i = 0; i < *length; i++) {
y[i] = x[i] + y[i];
}
- }}}}
+ }
}
/**
* compute the min of two vectors element-wise
return retval;
}
+
+int smpi_mpi_wait_all(int count, smpi_mpi_request_t *requests, smpi_mpi_status_t **status) {
+ int cpt;
+ int index;
+ int retval;
+ smpi_mpi_status_t stat;
+
+ for (cpt=0; cpt<count;cpt++) {
+ retval = smpi_mpi_wait_any(count,requests, &index,&stat);
+ if (retval != MPI_SUCCESS)
+ return retval;
+ memcpy(status[index],&stat,sizeof(stat));
+ }
+ return MPI_SUCCESS;
+}
+
+int smpi_mpi_wait_any(int count, smpi_mpi_request_t *requests, int *index, smpi_mpi_status_t *status) {
+ int cpt;
+
+ *index = MPI_UNDEFINED;
+ if (NULL == requests) {
+ return MPI_ERR_INTERN;
+ }
+ /* First check if one of them is already done */
+ for (cpt=0;cpt<count;cpt++) {
+ if (requests[cpt]->completed && !requests[cpt]->consumed) { /* got ya */
+ *index=cpt;
+ goto found_request;
+ }
+ }
+ /* If none found, block */
+ /* FIXME: should use a SIMIX_cond_waitany, when implemented. For now, block on the first one */
+ while (1) {
+ for (cpt=0;cpt<count;cpt++) {
+ if (!requests[cpt]->completed) { /* this one is not done, wait on it */
+ while (!requests[cpt]->completed)
+ SIMIX_cond_wait(requests[cpt]->cond, requests[cpt]->mutex);
+
+ *index=cpt;
+ goto found_request;
+ }
+ }
+ if (cpt == count) /* they are all done. Damn user */
+ return MPI_ERR_REQUEST;
+ }
+
+ found_request:
+ requests[*index]->consumed = 1;
+
+ if (NULL != status) {
+ status->MPI_SOURCE = requests[*index]->src;
+ status->MPI_TAG = requests[*index]->tag;
+ status->MPI_ERROR = MPI_SUCCESS;
+ }
+ return MPI_SUCCESS;
+
+}