Merge pull request #3308 from radical-cybertools/fix/mpi_rf

MPIEXEC: rankfile collides with hostnames
radical-cybertools · Feb 4, 2025 · 6eb8e57 · 6eb8e57
2 parents 4e30146 + 9ccb0a3
commit 6eb8e57
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/radical/pilot/agent/launch_method/mpiexec.py b/src/radical/pilot/agent/launch_method/mpiexec.py
@@ -245,7 +245,8 @@ def get_launch_cmds(self, task, exec_path):
         if self._use_rf:
             rankfile     = self._get_rank_file(slots, uid, sbox)
             hosts        = set([slot['node_name'] for slot in slots])
-            cmd_options += '-H %s -rf %s' % (','.join(hosts), rankfile)
+          # cmd_options += '-H %s -rf %s' % (','.join(hosts), rankfile)
+            cmd_options += '-rf %s' % rankfile
 
         elif self._mpi_flavor == self.MPI_FLAVOR_PALS:
             hostfile     = self._get_host_file(slots, uid, sbox)