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//------------------------------------------------------------------------------
// GraphBLAS/CUDA/test/GB_cuda_timer.hpp
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2025, All Rights Reserved.
// This file: Copyright (c) 2024-2025, NVIDIA CORPORATION. All rights reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
#ifndef GB_CUDA_TIMER_HPP
#define GB_CUDA_TIMER_HPP
#include <cuda_runtime.h>
struct GpuTimer
{
cudaEvent_t start;
cudaEvent_t stop;
GpuTimer()
{
cudaEventCreate(&start);
cudaEventCreate(&stop);
}
~GpuTimer()
{
cudaEventDestroy(start);
cudaEventDestroy(stop);
}
void Start()
{
cudaEventRecord(start, 0);
}
void Stop()
{
cudaEventRecord(stop, 0);
}
float Elapsed()
{
float elapsed;
cudaEventSynchronize(stop);
cudaEventElapsedTime(&elapsed, start, stop);
return elapsed;
}
} ;
#endif
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