From e892d09f2e67c479cd3ab1170d8497a7daad85b9 Mon Sep 17 00:00:00 2001
From: triplus <triplus@users.noreply.github.com>
Date: Wed, 2 Nov 2016 14:44:58 +0100
Subject: [PATCH 1/2] Part multiFuse enable SetRunParallel

Forum discussion:

http://forum.freecadweb.org/viewtopic.php?f=10&t=18179

Test case:

http://forum.freecadweb.org/viewtopic.php?f=10&t=18179#p142663
---
 src/Mod/Part/App/TopoShape.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/Mod/Part/App/TopoShape.cpp b/src/Mod/Part/App/TopoShape.cpp
index c3fbe56ac..a266bddb6 100644
--- a/src/Mod/Part/App/TopoShape.cpp
+++ b/src/Mod/Part/App/TopoShape.cpp
@@ -1325,6 +1325,9 @@ TopoDS_Shape TopoShape::multiFuse(const std::vector<TopoDS_Shape>& shapes, Stand
     }
 #else
     BRepAlgoAPI_Fuse mkFuse;
+# if OCC_VERSION_HEX >= 0x060900
+    mkFuse.SetRunParallel(true);
+# endif
     TopTools_ListOfShape shapeArguments,shapeTools;
     shapeArguments.Append(this->_Shape);
     for (std::vector<TopoDS_Shape>::const_iterator it = shapes.begin(); it != shapes.end(); ++it) {

From 3d26fec75a3b06da72988eb4017d526c747b9617 Mon Sep 17 00:00:00 2001
From: triplus <triplus@users.noreply.github.com>
Date: Wed, 2 Nov 2016 15:52:42 +0100
Subject: [PATCH 2/2] Part generalFuse enable SetRunParallel

Test case:

http://forum.freecadweb.org/viewtopic.php?f=10&t=18179&p=143225#p143225
---
 src/Mod/Part/App/TopoShape.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/Mod/Part/App/TopoShape.cpp b/src/Mod/Part/App/TopoShape.cpp
index a266bddb6..b67187db3 100644
--- a/src/Mod/Part/App/TopoShape.cpp
+++ b/src/Mod/Part/App/TopoShape.cpp
@@ -1413,6 +1413,7 @@ TopoDS_Shape TopoShape::generalFuse(const std::vector<TopoDS_Shape> &sOthers, St
     throw Base::AttributeError("GFA is available only in OCC 6.9.0 and up.");
 #else
     BRepAlgoAPI_BuilderAlgo mkGFA;
+    mkGFA.SetRunParallel(true);
     TopTools_ListOfShape GFAArguments;
     GFAArguments.Append(this->_Shape);
     for (const TopoDS_Shape &it: sOthers) {