int smpi_group_unuse(MPI_Group group);
int smpi_group_size(MPI_Group group);
int smpi_group_compare(MPI_Group group1, MPI_Group group2);
+int smpi_group_incl(MPI_Group group, int n, int* ranks, MPI_Group* newgroup);
+
MPI_Topology smpi_comm_topo(MPI_Comm comm);
MPI_Comm smpi_comm_new(MPI_Group group, MPI_Topology topo);
}
return result;
}
+
+int smpi_group_incl(MPI_Group group, int n, int* ranks, MPI_Group* newgroup)
+{
+ int i=0, index=0;
+ if (n == 0) {
+ *newgroup = MPI_GROUP_EMPTY;
+ } else if (n == smpi_group_size(group)) {
+ *newgroup = group;
+ if(group!= smpi_comm_group(MPI_COMM_WORLD)
+ && group != MPI_GROUP_NULL
+ && group != smpi_comm_group(MPI_COMM_SELF)
+ && group != MPI_GROUP_EMPTY)
+ smpi_group_use(group);
+ } else {
+ *newgroup = smpi_group_new(n);
+ for (i = 0; i < n; i++) {
+ index = smpi_group_index(group, ranks[i]);
+ smpi_group_set_mapping(*newgroup, index, i);
+ }
+ }
+ return MPI_SUCCESS;
+}
int PMPI_Group_incl(MPI_Group group, int n, int *ranks, MPI_Group * newgroup)
{
- int retval, i, index;
+ int retval;
if (group == MPI_GROUP_NULL) {
retval = MPI_ERR_GROUP;
} else if (newgroup == NULL) {
retval = MPI_ERR_ARG;
} else {
- if (n == 0) {
- *newgroup = MPI_GROUP_EMPTY;
- } else if (n == smpi_group_size(group)) {
- *newgroup = group;
- if(group!= smpi_comm_group(MPI_COMM_WORLD)
- && group != MPI_GROUP_NULL
- && group != smpi_comm_group(MPI_COMM_SELF)
- && group != MPI_GROUP_EMPTY)
- smpi_group_use(group);
- } else {
- *newgroup = smpi_group_new(n);
- for (i = 0; i < n; i++) {
- index = smpi_group_index(group, ranks[i]);
- smpi_group_set_mapping(*newgroup, index, i);
- }
- }
- retval = MPI_SUCCESS;
+ retval = smpi_group_incl(group, n, ranks, newgroup);
}
return retval;
}