[Openmp-commits] [PATCH] D102865: [OpenMP] Add L2-Tile equivalence for KNL

[Jonathan Peyton via Phabricator via Openmp-commits]

jlpeyton created this revision.
jlpeyton added reviewers: hbae, AndreyChurbanov, tlwilmar, Nawrin.
jlpeyton added a project: OpenMP.
Herald added subscribers: guansong, yaxunl.
jlpeyton requested review of this revision.
Herald added a reviewer: jdoerfert.
Herald added a subscriber: sstefan1.

When on KNL and L2 or Tile layer is detected, manually add the corresponding layer which is equivalent.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D102865

Files:
  openmp/runtime/src/kmp_affinity.cpp


Index: openmp/runtime/src/kmp_affinity.cpp
===================================================================
--- openmp/runtime/src/kmp_affinity.cpp
+++ openmp/runtime/src/kmp_affinity.cpp
@@ -599,6 +599,16 @@
   _set_globals();
   _set_last_level_cache();
 
+#if KMP_MIC_SUPPORTED
+  // Manually Add L2 = Tile equivalence
+  if (__kmp_mic_type == mic3) {
+    if (get_level(KMP_HW_L2) != -1)
+      set_equivalent_type(KMP_HW_TILE, KMP_HW_L2);
+    else if (get_level(KMP_HW_TILE) != -1)
+      set_equivalent_type(KMP_HW_L2, KMP_HW_TILE);
+  }
+#endif
+
   // Perform post canonicalization checking
   KMP_ASSERT(depth > 0);
   for (int level = 0; level < depth; ++level) {


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