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37 * \brief Implements PME GPU timing events in CUDA.
39 * \author Aleksei Iupinov <a.yupinov@gmail.com>
44 #include "pme-timings.cuh"
46 #include "gromacs/utility/gmxassert.h"
48 #include "pme-gpu-internal.h"
49 #include "pme-gpu-types-host.h"
50 #include "pme-gpu-types-host-impl.h"
53 * Tells if CUDA-based performance tracking is enabled for PME.
55 * \param[in] pme The PME data structure.
56 * \returns True if timings are enabled, false otherwise.
58 inline bool pme_gpu_timings_enabled(const PmeGpu *pmeGpu)
60 return pmeGpu->archSpecific->useTiming;
63 void pme_gpu_start_timing(const PmeGpu *pmeGpu, size_t PMEStageId)
65 if (pme_gpu_timings_enabled(pmeGpu))
67 GMX_ASSERT(PMEStageId < pmeGpu->archSpecific->timingEvents.size(), "Wrong PME GPU timing event index");
68 pmeGpu->archSpecific->timingEvents[PMEStageId].openTimingRegion(pmeGpu->archSpecific->pmeStream);
72 CommandEvent *pme_gpu_fetch_timing_event(const PmeGpu *pmeGpu, size_t PMEStageId)
74 CommandEvent *timingEvent = nullptr;
75 if (pme_gpu_timings_enabled(pmeGpu))
77 GMX_ASSERT(PMEStageId < pmeGpu->archSpecific->timingEvents.size(), "Wrong PME GPU timing event index");
78 timingEvent = pmeGpu->archSpecific->timingEvents[PMEStageId].fetchNextEvent();
83 void pme_gpu_stop_timing(const PmeGpu *pmeGpu, size_t PMEStageId)
85 if (pme_gpu_timings_enabled(pmeGpu))
87 GMX_ASSERT(PMEStageId < pmeGpu->archSpecific->timingEvents.size(), "Wrong PME GPU timing event index");
88 pmeGpu->archSpecific->timingEvents[PMEStageId].closeTimingRegion(pmeGpu->archSpecific->pmeStream);
92 void pme_gpu_get_timings(const PmeGpu *pmeGpu, gmx_wallclock_gpu_pme_t *timings)
94 if (pme_gpu_timings_enabled(pmeGpu))
96 GMX_RELEASE_ASSERT(timings, "Null GPU timing pointer");
97 for (size_t i = 0; i < pmeGpu->archSpecific->timingEvents.size(); i++)
99 timings->timing[i].t = pmeGpu->archSpecific->timingEvents[i].getTotalTime();
100 timings->timing[i].c = pmeGpu->archSpecific->timingEvents[i].getCallCount();
105 void pme_gpu_update_timings(const PmeGpu *pmeGpu)
107 if (pme_gpu_timings_enabled(pmeGpu))
109 for (const size_t &activeTimer : pmeGpu->archSpecific->activeTimers)
111 pmeGpu->archSpecific->timingEvents[activeTimer].getLastRangeTime();
116 void pme_gpu_reinit_timings(const PmeGpu *pmeGpu)
118 if (pme_gpu_timings_enabled(pmeGpu))
120 pmeGpu->archSpecific->activeTimers.clear();
121 pmeGpu->archSpecific->activeTimers.insert(gtPME_SPLINEANDSPREAD);
122 // TODO: no separate gtPME_SPLINE and gtPME_SPREAD as they are not used currently
123 if (pme_gpu_performs_FFT(pmeGpu))
125 pmeGpu->archSpecific->activeTimers.insert(gtPME_FFT_C2R);
126 pmeGpu->archSpecific->activeTimers.insert(gtPME_FFT_R2C);
128 if (pme_gpu_performs_solve(pmeGpu))
130 pmeGpu->archSpecific->activeTimers.insert(gtPME_SOLVE);
132 if (pme_gpu_performs_gather(pmeGpu))
134 pmeGpu->archSpecific->activeTimers.insert(gtPME_GATHER);
139 void pme_gpu_reset_timings(const PmeGpu *pmeGpu)
141 if (pme_gpu_timings_enabled(pmeGpu))
143 for (size_t i = 0; i < pmeGpu->archSpecific->timingEvents.size(); i++)
145 pmeGpu->archSpecific->timingEvents[i].reset();