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// =============================================================================
// === GPUQREngine/Include/GPUQREngine_timing.hpp ==============================
// =============================================================================
//
// Contains timing macros that wrap GPU timing logic, using cudaEvents.
//
// =============================================================================
#ifndef GPUQRENGINE_TIMING_HPP
#define GPUQRENGINE_TIMING_HPP
#ifdef TIMING
// create the timer
#define TIMER_INIT() \
cudaEvent_t start, stop ; \
cudaEventCreate(&start) ; \
cudaEventCreate(&stop) ; \
// start the timer
#define TIMER_START() \
cudaEventRecord(start, 0); \
// stop the timer and get the time since the last tic
// t is the time since the last TIMER_START()
#define TIMER_STOP(t) \
cudaEventRecord(stop, 0); \
cudaThreadSynchronize(); \
cudaEventElapsedTime(&(t), start, stop); \
// destroy the timer
#define TIMER_FINISH() \
cudaEventDestroy(start); \
cudaEventDestroy(stop); \
#else
// compile with no timing
#define TIMER_INIT() ;
#define TIMER_START() ;
#define TIMER_STOP(t) ;
#define TIMER_FINISH() ;
#endif
#endif
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