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[XPU] avoid pre-allocating gm buffer #60387

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merged 1 commit into from
Dec 29, 2023
Merged

[XPU] avoid pre-allocating gm buffer #60387

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2 changes: 2 additions & 0 deletions paddle/fluid/distributed/collective/process_group_bkcl.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -207,6 +207,8 @@ void ProcessGroupBKCL::CreateBKCLEnvCache(const Place& place,
platform::DeviceContextPool::Instance().Get(place));
// must use XPUDeviceContext here to make sure XPUContext::Init() is called
auto comm_ctx = std::make_unique<XPUDeviceContext>(place);
// comm_ctx does not require a pre-allocated GM buffer
comm_ctx->x_context()->set_option("XPUAPI_DEFAULT_SIZE", "1");
auto bkcl_comm_ctx = this->GetCommContext();
comm_ctx->SetBkclContext(bkcl_comm_ctx->GetBKCLComm());

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3 changes: 3 additions & 0 deletions paddle/phi/backends/xpu/xpu_context.cc
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Expand Up @@ -200,6 +200,9 @@ struct XPUContext::Impl {
<< tname << " currently " << context_map_.size()
<< " contexts existing";
xpu::Context* ctx_t = xpu::create_context();
// DataLoader does not require a pre-allocated GM buffer
// to avoid xpu_wait calls
ctx_t->set_option("XPUAPI_DEFAULT_SIZE", "1");
context_map_[tname] = ctx_t;
}
}
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