- size = smpi_group_size(group) - n;
- *newgroup = smpi_group_new(size);
- rank = 0;
- while (rank < size) {
- for (i = 0; i < n; i++) {
- if (ranks[i] == rank) {
- break;
- }
+ oldsize=smpi_group_size(group);
+ newsize = oldsize - n;
+ *newgroup = smpi_group_new(newsize);
+
+ int* to_exclude=xbt_new(int, smpi_group_size(group));
+ for(i=0; i<oldsize; i++)
+ to_exclude[i]=0;
+ for(i=0; i<n; i++)
+ to_exclude[ranks[i]]=1;
+
+ j=0;
+ for(i=0; i<oldsize; i++){
+ if(to_exclude[i]==0){
+ index = smpi_group_index(group, i);
+ smpi_group_set_mapping(*newgroup, index, j);
+ j++;