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#include <gtest/gtest.h>
#include "caffe2/core/context.h"
#include "caffe2/core/context_gpu.h"
#include "caffe2/core/event.h"
namespace caffe2 {
TEST(EventCUDATest, EventBasics) {
if (!HasCudaGPU())
return;
DeviceOption device_cpu;
device_cpu.set_device_type(PROTO_CPU);
DeviceOption device_cuda;
device_cuda.set_device_type(PROTO_CUDA);
CPUContext context_cpu(device_cpu);
CUDAContext context_cuda(device_cuda);
Event event_cpu(device_cpu);
Event event_cuda(device_cuda);
// CPU context and event interactions
context_cpu.Record(&event_cpu);
event_cpu.SetFinished();
event_cpu.Finish();
context_cpu.WaitEvent(event_cpu);
event_cpu.Reset();
event_cpu.Record(CPU, &context_cpu);
event_cpu.SetFinished();
event_cpu.Wait(CPU, &context_cpu);
// CUDA context and event interactions
context_cuda.SwitchToDevice();
context_cuda.Record(&event_cuda);
context_cuda.WaitEvent(event_cuda);
event_cuda.Finish();
event_cuda.Reset();
event_cuda.Record(CUDA, &context_cuda);
event_cuda.Wait(CUDA, &context_cuda);
// CPU context waiting for CUDA event
context_cpu.WaitEvent(event_cuda);
// CUDA context waiting for CPU event
context_cuda.WaitEvent(event_cpu);
}
} // namespace caffe2
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