[Offload] Stop the RPC server faiilng with more than one GPU #125982
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Summary: Pretty dumb mistake of me, forgot that this is run per-device and per-plugin, which fell through the cracks with my testing because I have two GPUs that use different plugins.
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@llvm/pr-subscribers-offload Author: Joseph Huber (jhuber6) ChangesSummary: Full diff: https://github.com/llvm/llvm-project/pull/125982.diff 1 Files Affected:
diff --git a/offload/plugins-nextgen/common/src/PluginInterface.cpp b/offload/plugins-nextgen/common/src/PluginInterface.cpp
index d2451d8a3422121..76ae0a2dd9c4523 100644
--- a/offload/plugins-nextgen/common/src/PluginInterface.cpp
+++ b/offload/plugins-nextgen/common/src/PluginInterface.cpp
@@ -1058,8 +1058,9 @@ Error GenericDeviceTy::setupRPCServer(GenericPluginTy &Plugin,
if (auto Err = Server.initDevice(*this, Plugin.getGlobalHandler(), Image))
return Err;
- if (auto Err = Server.startThread())
- return Err;
+ if (!Server.Thread->Running.load(std::memory_order_acquire))
+ if (auto Err = Server.startThread())
+ return Err;
RPCServer = &Server;
DP("Running an RPC server on device %d\n", getDeviceId());
@@ -1634,7 +1635,7 @@ Error GenericPluginTy::deinit() {
if (GlobalHandler)
delete GlobalHandler;
- if (RPCServer && RPCServer->Thread->Running.load(std::memory_order_relaxed))
+ if (RPCServer && RPCServer->Thread->Running.load(std::memory_order_acquire))
if (Error Err = RPCServer->shutDown())
return Err;
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ronlieb
approved these changes
Feb 6, 2025
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/cherry-pick 7a87794 |
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/pull-request #125985 |
searlmc1
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Feb 7, 2025
…5982) Summary: Pretty dumb mistake of me, forgot that this is run per-device and per-plugin, which fell through the cracks with my testing because I have two GPUs that use different plugins.
Icohedron
pushed a commit
to Icohedron/llvm-project
that referenced
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Feb 11, 2025
…5982) Summary: Pretty dumb mistake of me, forgot that this is run per-device and per-plugin, which fell through the cracks with my testing because I have two GPUs that use different plugins.
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Summary:
Pretty dumb mistake of me, forgot that this is run per-device and
per-plugin, which fell through the cracks with my testing because I have
two GPUs that use different plugins.