From a198b0404cd1b88eebc1820fd72f5e383f32956a Mon Sep 17 00:00:00 2001
From: "Julian M. Kunkel" <juliankunkel@googlemail.com>
Date: Thu, 11 Feb 2021 15:50:48 +0000
Subject: [PATCH] Bugfix MDTest: only rank 0 shall print errors.

---
 src/mdtest.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/mdtest.c b/src/mdtest.c
index cfd221a..d780fba 100644
--- a/src/mdtest.c
+++ b/src/mdtest.c
@@ -2483,9 +2483,9 @@ mdtest_results_t * mdtest_run(int argc, char **argv, MPI_Comm world_com, FILE *
         FAIL("Unable to remove test directory path %s", o.testdirpath);
     }
 
-    int total_errors;
+    int total_errors = 0;
     MPI_Reduce(& o.verification_error, & total_errors, 1, MPI_INT, MPI_SUM, 0,  testComm);
-    if(total_errors){
+    if(rank == 0 && total_errors){
       VERBOSE(0, -1, "\nERROR: verifying the data on read (%lld errors)! Take the performance values with care!\n", total_errors);
     }
     VERBOSE(0,-1,"-- finished at %s --\n", PrintTimestamp());