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Fix of PrusaSlicer hangs on Linux when run with non standard task affinity #5661

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This commit is contained in:
Vojtech Bubnik
2021-01-04 09:03:49 +01:00
parent ef5df08358
commit b002c1485d
1 changed files with 5 additions and 2 deletions
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7
src/libslic3r/Thread.cpp
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@@ -11,9 +11,9 @@
#include <mutex>
#include <tbb/parallel_for.h>
#include <tbb/tbb_thread.h>
#include <tbb/task_arena.h>
#include <tbb/task_scheduler_init.h>
#include "Thread.hpp"
namespace Slic3r {
@@ -195,7 +195,10 @@ void name_tbb_thread_pool_threads()
return;
initialized = true;
const size_t nthreads_hw = std::thread::hardware_concurrency();
// see GH issue #5661 PrusaSlicer hangs on Linux when run with non standard task affinity
// TBB will respect the task affinity mask on Linux and spawn less threads than std::thread::hardware_concurrency().
// const size_t nthreads_hw = std::thread::hardware_concurrency();
const size_t nthreads_hw = tbb::this_task_arena::max_concurrency();
size_t nthreads = nthreads_hw;
#ifdef SLIC3R_PROFILE