From a445f9ae9268bf2f523194919af991563dabeca2 Mon Sep 17 00:00:00 2001
From: marius <mariusmillea@gmail.com>
Date: Thu, 11 Mar 2021 19:31:37 -0800
Subject: [PATCH] fix parallel tweak

---
 src/util_parallel.jl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/util_parallel.jl b/src/util_parallel.jl
index f286bbb6..48e9d577 100644
--- a/src/util_parallel.jl
+++ b/src/util_parallel.jl
@@ -49,7 +49,7 @@ _mpi_rank() = nothing
 
     end
 
-    _mpi_rank() = MPI.Comm_rank(MPI.COMM_WORLD)
+    _mpi_rank() = MPI.Initialized() ? MPI.Comm_rank(MPI.COMM_WORLD) : nothing
     
 end