From 8ee5ae8ccc4fb11c4a89720ea4a2790a708173a6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Franz=20P=C3=B6schel?= <franz.poeschel@gmail.com>
Date: Fri, 22 Sep 2023 17:55:53 +0200
Subject: [PATCH] Bug fix: don't double prepend base dir

---
 src/IO/JSON/JSONIOHandlerImpl.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/IO/JSON/JSONIOHandlerImpl.cpp b/src/IO/JSON/JSONIOHandlerImpl.cpp
index 0116cf8dd8..7e249d0373 100644
--- a/src/IO/JSON/JSONIOHandlerImpl.cpp
+++ b/src/IO/JSON/JSONIOHandlerImpl.cpp
@@ -2069,7 +2069,8 @@ auto JSONIOHandlerImpl::putJsonContents(
             MPI_Comm_rank(comm, &rank);
             MPI_Comm_size(comm, &size);
             std::stringstream subfilePath;
-            subfilePath << dirpath << "/mpi_rank_"
+            // writeSingleFile will prepend the base dir
+            subfilePath << *filename << ".parallel/mpi_rank_"
                         << std::setw(num_digits(size - 1)) << std::setfill('0')
                         << rank << ".json";
             writeSingleFile(subfilePath.str());