[Openmp-commits] [PATCH] D95156: [OpenMP] Update HWLOC topology detection for 2.0.x

[Jonathan Peyton via Phabricator via Openmp-commits]

jlpeyton created this revision.
jlpeyton added reviewers: AndreyChurbanov, tlwilmar.
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.

HWLOC 2.0 has numa nodes as separate children and are not in the main
parent/child topology tree anymore.  This change takes this into
account.  The main topology detection loop in the create_hwloc_map()
routine starts at a hardware thread within the initial affinity mask and
goes up the topology tree setting the socket/core/thread labels correctly.

This change also introduces some of the more generic topology 
manipulation changes including a generic ratio & count array 
(finding all ratios of topology layers like threads/core cores/socket
and finding all counts of each topology layer), generic radix1 reduction
step, generic uniformity check, and generic printing of topology (en_US.txt)

The plan is to have all the topology methods to use the generic
topology manipulation methods in a future patch.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D95156

Files:
  openmp/runtime/src/i18n/en_US.txt
  openmp/runtime/src/kmp.h
  openmp/runtime/src/kmp_affinity.cpp

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