Commit Graph

7 Commits

Author SHA1 Message Date
Atmn Patel c44420e90d [Libomptarget][remote] Add OpenMP linker flag to the plugin
The remote offloading server and plugin rely on OpenMP, so this needs to be added as a linker flag. Without this, applications segfault.

Differential Revision: https://reviews.llvm.org/D124200
2022-04-21 15:45:29 -04:00
Atmn Patel 489894f363 [Libomptarget][remote] Fix compile-time error
This fixes a compile-time error recently introduced within the remote
offloading plugin. This patch also removes some extra linker flags that are unnecessary, and adds an explicit abseil linker flag without which we occasionally get problems.

Differential Revision: https://reviews.llvm.org/D119984
2022-04-19 16:46:01 -04:00
Atmn Patel 21e92612c0 [Libomptarget] Experimental Remote Plugin Fixes
D97883 introduced a compile-time error in the experimental remote offloading
libomptarget plugin, this patch fixes it and resolves a number of
inconsistencies in the plugin as well:

1. Non-functional Asynchronous API
2. Unnecessarily verbose debug printing
3. Misc. code clean ups

This is not intended to make any functional changes to the plugin.

Differential Revision: https://reviews.llvm.org/D105325
2021-07-02 12:38:34 -04:00
Vyacheslav Zakharin b5c4fc0f23 [NFC][libomptarget] Reduce the dependency on libelf
This change-set removes libelf usage from elf_common part of the plugins.
libelf is still used in x86_64 generic plugin code and in some plugins
(e.g. amdgpu) - these will have to be cleaned up in separate checkins.

Differential Revision: https://reviews.llvm.org/D103545
2021-06-16 08:34:23 -07:00
Johannes Doerfert 5449fbb5d4 [OpenMP][NFC] Use `AsyncInfo` as the variable name for a `__tgt_async_info`
Reviewed By: grokos, tianshilei1992

Differential Revision: https://reviews.llvm.org/D96444
2021-03-11 23:31:34 -06:00
Vyacheslav Zakharin 0fc90873b2 [libomptarget][NFC] Link plugins with threads support library due to std::call_once usage.
Differential Revision: https://reviews.llvm.org/D95572
2021-01-27 19:26:18 -08:00
Atmn Patel ec8f4a38c8 [OpenMP][Libomptarget] Introduce Remote Offloading Plugin
This introduces a remote offloading plugin for libomptarget. This
implementation relies on gRPC and protobuf, so this library will only
build if both libraries are available on the system. The corresponding
server is compiled to `openmp-offloading-server`.

This is a large change, but the only way to split this up is into RTL/server
but I fear that could introduce an inconsistency amongst them.

Ideally, tests for this should be added to the current ones that but that is
problematic for at least one reason. Given that libomptarget registers plugin
on a first-come-first-serve basis, if we wanted to offload onto a local x86
through a different process, then we'd have to either re-order the plugin list
in `rtl.cpp` (which is what I did locally for testing) or find a better
solution for runtime plugin registration in libomptarget.

Differential Revision: https://reviews.llvm.org/D95314
2021-01-26 15:33:38 -05:00