Fix MSAN errors

[alexxy/gromacs.git] / src / gromacs / domdec / domdec.cpp

diff --git a/src/gromacs/domdec/domdec.cpp b/src/gromacs/domdec/domdec.cpp
index ec57e3ff013dc29a093693efa4e8b6287f7e49db..03371c1994585c1037938cafe981dccc87acfdde 100644 (file)
--- a/src/gromacs/domdec/domdec.cpp
+++ b/src/gromacs/domdec/domdec.cpp
@@ -1767,7 +1767,8 @@ static void make_dd_communicators(const gmx::MDLogger &mdlog,
         dd->pme_nodeid = -1;
     }
 
-    if (DDMASTER(dd))
+    /* We can not use DDMASTER(dd), because dd->masterrank is set later */
+    if (MASTER(cr))
     {
         dd->ma = gmx::compat::make_unique<AtomDistribution>(dd->nc,
                                                             comm->cgs_gl.nr,