fixes bug in interpolation_method_spmap

src/interpolation_method_spmap.c

@@ -1861,7 +1861,7 @@ recv_search_request_callback(struct communicator * comm,
   unsigned recv_buffer_size = ((unsigned*)(msg.buffer))[0];
 
   // set up receive for search request data
-  yac_comm_recv_callback(recv_buffer_size, COMM_UINT, COMM_ANYSOURCE,
+  yac_comm_recv_callback(recv_buffer_size, COMM_UINT, msg.src_rank,
                          search_request_data->tags.request_data,
                          comm, user_data, recv_search_request_cont_callback,
                          NULL, MSG_PRIO_HIGH);