This is an archive of the discontinued LLVM Phabricator instance.

Differential D142492

[OpenMP][docs] Update for record-and-replay
ClosedPublic

Authored by ggeorgakoudis on Jan 24 2023, 10:29 AM.

Details

Reviewers
jdoerfert
Commits
rG4b88bf5c70c3: [OpenMP][docs] Update for record-and-replay

Diff Detail

Event Timeline

ggeorgakoudis created this revision.Jan 24 2023, 10:29 AM
Herald added a project: Restricted Project. · View Herald TranscriptJan 24 2023, 10:29 AM
Herald added subscribers: guansong, yaxunl. · View Herald Transcript
ggeorgakoudis requested review of this revision.Jan 24 2023, 10:29 AM
Herald added a reviewer: jdoerfert. · View Herald TranscriptJan 24 2023, 10:29 AM
Herald added a project: Restricted Project. · View Herald Transcript
Herald added subscribers: openmp-commits, sstefan1. · View Herald Transcript
ggeorgakoudis updated this revision to Diff 491850.Jan 24 2023, 10:31 AM

Add newline

Harbormaster completed remote builds in B209707: Diff 491850.Jan 24 2023, 10:35 AM
ggeorgakoudis updated this revision to Diff 491904.Jan 24 2023, 1:52 PM

Add env vars

Harbormaster completed remote builds in B209743: Diff 491904.Jan 24 2023, 1:56 PM
jdoerfert accepted this revision.Jan 24 2023, 2:31 PM

LG, I think we can/should remove the LIBOMTARGET_REPLAYING line though, we don't actually want users to use it rn.

This revision is now accepted and ready to land.Jan 24 2023, 2:31 PM
ggeorgakoudis updated this revision to Diff 491919.Jan 24 2023, 2:33 PM

Fix for comment

ggeorgakoudis updated this revision to Diff 491920.Jan 24 2023, 2:36 PM

Rebase

This revision was landed with ongoing or failed builds.Jan 24 2023, 2:36 PM
Closed by commit rG4b88bf5c70c3: [OpenMP][docs] Update for record-and-replay (authored by ggeorgakoudis). · Explain Why
This revision was automatically updated to reflect the committed changes.
ggeorgakoudis added a commit: rG4b88bf5c70c3: [OpenMP][docs] Update for record-and-replay.
Harbormaster completed remote builds in B209756: Diff 491920.Jan 24 2023, 2:39 PM

Revision Contents

PathSize
openmp/
docs/
12 lines

Diff 491919

openmp/docs/ReleaseNotes.rst

Show All 18 Lines
Non-comprehensive list of changes in this release Non-comprehensive list of changes in this release
================================================= =================================================
* Support for building the OpenMP runtime for Windows on AArch64 and ARM * Support for building the OpenMP runtime for Windows on AArch64 and ARM
with MinGW based toolchains. with MinGW based toolchains.
* Made the OpenMP runtime tests run successfully on Windows. * Made the OpenMP runtime tests run successfully on Windows.
* Support record-and-replay functionality for individual OpenMP offload kernels.
Enabling recording in the host OpenMP target runtime library stores per-kernel
the device image, device memory state, and kernel launching information. The
newly added command-line tool `llvm-omp-kernel-replay` replays kernel execution.
Environment variables control recording/replaying:
* LIBOMPTARGET_RECORDING=<0|1>, 0: disable recording (default), 1: enable recording
* LIBOMPTARGET_RR_DEVMEM_SIZE = <integer in bytes>, default 64GB, amount of device
memory to pre-allocate for storing/loading when recording/replaying
* LIBOMPTARGET_RR_SAVE_OUTPUT=<0|1>, 0: disable saving device memory post-kernel execution
(default), 1: enable saving device memory post-kernel execution (used for verification
with `llvm-omp-kernel-replay`)