From 5a9b48790f691946cb9c45d476250ae11e7306dd Mon Sep 17 00:00:00 2001
From: Nabil Ghodbane <nabil.ghodbane@cea.fr>
Date: Wed, 12 Apr 2023 13:56:49 +0200
Subject: [PATCH] spns #34443: on Windows, if HXT algorithm is used, ensure
 number of threads for this 3D algorithm is set to 1.Computation will fail
 otherwise.

---
 src/GMSHPlugin/GMSHPlugin_Mesher.cxx | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/GMSHPlugin/GMSHPlugin_Mesher.cxx b/src/GMSHPlugin/GMSHPlugin_Mesher.cxx
index 4ce6c58..92b5030 100644
--- a/src/GMSHPlugin/GMSHPlugin_Mesher.cxx
+++ b/src/GMSHPlugin/GMSHPlugin_Mesher.cxx
@@ -329,6 +329,13 @@ void GMSHPlugin_Mesher::SetGmshOptions()
 **/
   ok = GmshSetOption("General", "NumThreads"            , _maxThreads )  ; // system default i.e. OMP_NUM_THREADS
   ASSERT(ok);
+#ifdef WIN32
+  if ( GMSHPlugin_Hypothesis::Algo3D::hxt == _algo3d ){
+    MESSAGE("GMSHPlugin_Mesher::SetGmshOptions: HXT algorithm is being used. Setting number of threads to 1.");
+    ok = GmshSetOption("Mesh", "MaxNumThreads3D"       , 1. );
+    ASSERT(ok);
+  } // hxt
+#endif
 #endif
 }
 
-- 
2.39.2