From 09d036a4fb82fd907c51226c88925d43b0d5a322 Mon Sep 17 00:00:00 2001
From: Lisa Julia Nebel <lisa.nebel@dr-blatt.de>
Date: Fri, 20 Dec 2024 06:23:09 +0100
Subject: [PATCH] Fix really stupid communication mistake

---
 opm/simulators/wells/MultisegmentWellEquations.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/opm/simulators/wells/MultisegmentWellEquations.cpp b/opm/simulators/wells/MultisegmentWellEquations.cpp
index 35972da2d..c707000b7 100644
--- a/opm/simulators/wells/MultisegmentWellEquations.cpp
+++ b/opm/simulators/wells/MultisegmentWellEquations.cpp
@@ -152,7 +152,7 @@ apply(const BVector& x, BVector& Ax) const
 
     duneB_.mv(x, Bx);
 
-    if (this->pw_info_.communication().size() == 1) {
+    if (this->pw_info_.communication().size() > 1) {
         // We need to communicate here to get the contributions from all segments
         this->pw_info_.communication().sum(Bx.data(), Bx.size());
     }