From f1ae552c5f4d3c5b34468ae5b7c80e7dac8de721 Mon Sep 17 00:00:00 2001
From: Chris Siefert <csiefer@sandia.gov>
Date: Wed, 13 Sep 2023 15:34:14 -0600
Subject: [PATCH] Tpetra: Making applyTranspose replicated logic consistent
 with applyNonTranspose (removing a fence in the process)

---
 packages/tpetra/core/src/Tpetra_CrsMatrix_def.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/tpetra/core/src/Tpetra_CrsMatrix_def.hpp b/packages/tpetra/core/src/Tpetra_CrsMatrix_def.hpp
index 391804ac02c1..a18434da2c2e 100644
--- a/packages/tpetra/core/src/Tpetra_CrsMatrix_def.hpp
+++ b/packages/tpetra/core/src/Tpetra_CrsMatrix_def.hpp
@@ -4909,7 +4909,7 @@ CrsMatrix<Scalar, LocalOrdinal, GlobalOrdinal, Node>::
     RCP<const MV> X;
 
     // some parameters for below
-    const bool Y_is_replicated = ! Y_in.isDistributed ();
+    const bool Y_is_replicated = (! Y_in.isDistributed () && this->getComm ()->getSize () != 1);
     const bool Y_is_overwritten = (beta == ZERO);
     if (Y_is_replicated && this->getComm ()->getRank () > 0) {
       beta = ZERO;