[GitHub] cjolivier01 closed pull request #12380: Manually track num_max_thread

[GitBox <gi...@apache.org>]

cjolivier01 closed pull request #12380: Manually track num_max_thread
URL: https://github.com/apache/incubator-mxnet/pull/12380
 
 
   

This is a PR merged from a forked repository.
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As this is a foreign pull request (from a fork), the diff is supplied
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diff --git a/src/engine/openmp.cc b/src/engine/openmp.cc
index 8fe3939892d..64899b09660 100644
--- a/src/engine/openmp.cc
+++ b/src/engine/openmp.cc
@@ -73,18 +73,14 @@ void OpenMP::set_reserve_cores(int cores) {
   CHECK_GE(cores, 0);
   reserve_cores_ = cores;
 #ifdef _OPENMP
-  if (reserve_cores_ >= omp_thread_max_) {
-    omp_set_num_threads(1);
-  } else {
-    omp_set_num_threads(omp_thread_max_ - reserve_cores_);
-  }
+  omp_thread_max_ = std::max(omp_thread_max_ - reserve_cores_, 1);
 #endif
 }
 
 int OpenMP::GetRecommendedOMPThreadCount(bool exclude_reserved) const {
 #ifdef _OPENMP
   if (omp_num_threads_set_in_environment_) {
-    return omp_get_max_threads();
+    return omp_thread_max_;
   }
   if (enabled_) {
     int thread_count = omp_get_max_threads();
@@ -101,10 +97,8 @@ int OpenMP::GetRecommendedOMPThreadCount(bool exclude_reserved) const {
     }
     return omp_thread_max_;
   }
-  return 1;
-#else
-  return 1;
 #endif
+  return 1;
 }
 
 OpenMP *__init_omp__ = OpenMP::Get();


 

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