Remove DevCtx lock

3aa7051b · Yu Yang · 1f53193a · 3aa7051b · 3aa7051b
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paddle/fluid/platform/device_context.cc paddle/fluid/platform/device_context.cc +0 -1

paddle/fluid/platform/device_context.h paddle/fluid/platform/device_context.h +0 -1

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--- a/paddle/fluid/platform/device_context.cc
+++ b/paddle/fluid/platform/device_context.cc
@@ -159,7 +159,6 @@ CUDADeviceContext::~CUDADeviceContext() {
 Place CUDADeviceContext::GetPlace() const { return place_; }

 void CUDADeviceContext::Wait() const {
-  std::lock_guard<std::mutex> guard(this->mutex_);
  PADDLE_ENFORCE(cudaStreamSynchronize(stream_));
  PADDLE_ENFORCE(cudaGetLastError());
 }

--- a/paddle/fluid/platform/device_context.h
+++ b/paddle/fluid/platform/device_context.h
@@ -110,7 +110,6 @@ class CUDADeviceContext : public DeviceContext {
  int compute_capability;
  int multi_process;
  int max_threads_per_mp;
-  mutable std::mutex mutex_;
 };

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