only try to broadcast if we have a proper communicator

2020-09-18 21:17:31 -04:00
parent f5fda95da6
commit 897a7d0ed4
1 changed files with 2 additions and 1 deletions
--- a/python/lammps.py
+++ b/python/lammps.py
@ -2206,7 +2206,8 @@ class PyLammps(object):
    """
    output = self.__getattr__('run')(*args, **kwargs)

-    if(self.has_mpi4py):
+    comm = self.lmp.get_mpi_comm()
+    if comm:
      output = self.lmp.comm.bcast(output, root=0)

    self.runs += get_thermo_data(output)