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[v2,0/3] libgomp: OpenMP low-latency omp_alloc

Message ID cover.1690994309.git.ams@codesourcery.com
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Series libgomp: OpenMP low-latency omp_alloc | expand

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Andrew Stubbs Aug. 2, 2023, 5 p.m. UTC 
This patch series is an updated and reworked version of some of the patch set
posted about a year ago (the other features will be posted soon), this
time supporting amdgcn, in addition to nvptx:

https://patchwork.sourceware.org/project/gcc/list/?series=10748&state=%2A&archive=both

The series implements device-specific allocators and adds a low-latency
allocator for both GPUs architectures.

The previous review comments have been addressed, I hope, plus a lot of
bugs have been found and fixed since the original post.  With the
addition of amdgcn I have broken out the heap implementation so both
architectures can share the code.

Andrew

Andrew Stubbs (3):
  libgomp, nvptx: low-latency memory allocator
  openmp, nvptx: low-lat memory access traits
  amdgcn, libgomp: low-latency allocator

 gcc/config/gcn/gcn-builtins.def               |   2 +
 gcc/config/gcn/gcn.cc                         |  16 +-
 libgomp/allocator.c                           | 269 +++++++++----
 libgomp/basic-allocator.c                     | 380 ++++++++++++++++++
 libgomp/config/gcn/allocator.c                | 123 ++++++
 libgomp/config/gcn/libgomp-gcn.h              |   6 +
 libgomp/config/gcn/team.c                     |  12 +
 libgomp/config/nvptx/allocator.c              | 131 ++++++
 libgomp/config/nvptx/team.c                   |  18 +
 libgomp/libgomp.h                             |   3 -
 libgomp/plugin/plugin-gcn.c                   |  35 +-
 libgomp/plugin/plugin-nvptx.c                 |  23 +-
 libgomp/testsuite/libgomp.c/omp_alloc-1.c     |  56 +++
 libgomp/testsuite/libgomp.c/omp_alloc-2.c     |  64 +++
 libgomp/testsuite/libgomp.c/omp_alloc-3.c     |  42 ++
 libgomp/testsuite/libgomp.c/omp_alloc-4.c     | 197 +++++++++
 libgomp/testsuite/libgomp.c/omp_alloc-5.c     |  63 +++
 libgomp/testsuite/libgomp.c/omp_alloc-6.c     | 118 ++++++
 .../testsuite/libgomp.c/omp_alloc-traits.c    |  68 ++++
 19 files changed, 1528 insertions(+), 98 deletions(-)
 create mode 100644 libgomp/basic-allocator.c
 create mode 100644 libgomp/config/gcn/allocator.c
 create mode 100644 libgomp/config/nvptx/allocator.c
 create mode 100644 libgomp/testsuite/libgomp.c/omp_alloc-1.c
 create mode 100644 libgomp/testsuite/libgomp.c/omp_alloc-2.c
 create mode 100644 libgomp/testsuite/libgomp.c/omp_alloc-3.c
 create mode 100644 libgomp/testsuite/libgomp.c/omp_alloc-4.c
 create mode 100644 libgomp/testsuite/libgomp.c/omp_alloc-5.c
 create mode 100644 libgomp/testsuite/libgomp.c/omp_alloc-6.c
 create mode 100644 libgomp/testsuite/libgomp.c/omp_alloc-traits.c