From 89a04db7018cf0829b13c5fc605a6baa90b21806 Mon Sep 17 00:00:00 2001
From: Ruben Horn <>
Date: Wed, 6 Nov 2024 10:34:07 +0100
Subject: [PATCH] Fixed creation of ".tsv" file without output

---
 src/plugins/EnergyRAPL.cpp | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/plugins/EnergyRAPL.cpp b/src/plugins/EnergyRAPL.cpp
index e0cd5554db..dedcc3eaa6 100644
--- a/src/plugins/EnergyRAPL.cpp
+++ b/src/plugins/EnergyRAPL.cpp
@@ -69,10 +69,12 @@ void EnergyRAPL::init(ParticleContainer* particleContainer, DomainDecompBase* do
 	MPI_Get_processor_name(_processorName, &processorNameLength);
 	MPI_Comm_rank(MPI_COMM_WORLD, &_thisRank);
 #endif
-	std::ostringstream outputFilename;
-	outputFilename << _outputprefix << ".tsv";
-	std::ofstream outputFile(outputFilename.str().c_str());
-	outputFile << "milliseconds\tsimstep\tjoules" << std::endl;
+	if (!_outputprefix.empty()) {
+		std::ostringstream outputFilename;
+		outputFilename << _outputprefix << ".tsv";
+		std::ofstream outputFile(outputFilename.str().c_str());
+		outputFile << "milliseconds\tsimstep\tjoules" << std::endl;
+	}
 	// For each package...
 	const int numberOfPackages = getNumberOfPackages();
 	for (int packageIdx = 0; packageIdx < numberOfPackages; packageIdx++) {