From 3068c3bb6522e950ad57bf8c7a3c48302a1e1a46 Mon Sep 17 00:00:00 2001
From: oan <oan@opencascade.com>
Date: Wed, 11 Sep 2019 11:04:03 +0300
Subject: [PATCH] 0030959: OSD_Parallel_TBB: number of execution threads is
 strictly limited by the root scope

Do not limit number of available threads by number of items processed within the root scope due to possibility of spawning of an additional threads within the subscopes.
---
 src/OSD/OSD_Parallel_TBB.cxx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/OSD/OSD_Parallel_TBB.cxx b/src/OSD/OSD_Parallel_TBB.cxx
index 43b6ec178b..9179f8dba4 100644
--- a/src/OSD/OSD_Parallel_TBB.cxx
+++ b/src/OSD/OSD_Parallel_TBB.cxx
@@ -40,7 +40,7 @@ void OSD_Parallel::forEachExternal (UniversalIterator& theBegin,
   {
     const Handle(OSD_ThreadPool)& aThreadPool = OSD_ThreadPool::DefaultPool();
     const Standard_Integer aNbThreads = theNbItems > 0 ?
-      Min (theNbItems, aThreadPool->NbDefaultThreadsToLaunch()) : -1;
+      aThreadPool->NbDefaultThreadsToLaunch() : -1;
 
     tbb::task_scheduler_init aScheduler (aNbThreads);
     tbb::parallel_for_each (theBegin, theEnd, theFunctor);