osc/rdma: fix typo

Need to increment the total size after checking the local offset not
before. This typo causes large allocations with MPI_Win_allocate() to
fail.

Signed-off-by: Nathan Hjelm <[email protected]>

(cherry picked from commit open-mpi/ompi@2409024)

Signed-off-by: Nathan Hjelm <[email protected]>

Author: hjelmn

ompi/mca/osc/rdma/osc_rdma_component.c

@@ -517,10 +517,10 @@ static int allocate_state_shared (ompi_osc_rdma_module_t *module, void **base, s
 
         if (MPI_WIN_FLAVOR_ALLOCATE == module->flavor) {
             for (int i = 0 ; i < local_size ; ++i) {
-                total_size += temp[i].size;
                 if (local_rank == i) {
                     my_base_offset = total_size;
                 }
+                total_size += temp[i].size;
             }
         }