PmeGpuSpecific Struct Reference

#include <gromacs/ewald/pme_gpu_types_host_impl.h>

Collaboration diagram for PmeGpuSpecific:

Description

The main PME CUDA/OpenCL-specific host data structure, included in the PME GPU structure by the archSpecific pointer.

Public Member Functions
	PmeGpuSpecific (const DeviceContext &deviceContext, const DeviceStream &pmeStream)
	Constructor. More...

Public Attributes
const DeviceContext &	deviceContext_
	A handle to the GPU context. TODO: this is currently extracted from the implementation of pmeGpu->programHandle_, but should be a constructor parameter to PmeGpu, as well as PmeGpuProgram, managed by high-level code.
const DeviceStream &	pmeStream_
	The GPU stream where everything related to the PME happens.
GpuEventSynchronizer	pmeForcesReady
	Triggered after the PME Force Calculations have been completed.
GpuEventSynchronizer	syncSpreadGridD2H
	Triggered after the grid has been copied to the host (after the spreading stage).
GpuEventSynchronizer	syncFftToPmeGrid
	Triggered after the grid has been converted from FFT grid to PME grid (before the gather stage).
GpuEventSynchronizer	spreadCompleted
	Triggered after spline/spread computations have been completed.
bool	performOutOfPlaceFFT = false
	A boolean which tells whether the complex and real grids for cu/clFFT are different or same. Currently true.
bool	useTiming = false
	A boolean which tells if the GPU timing events are enabled. False by default, can be enabled by setting the environment variable GMX_ENABLE_GPU_TIMING. Note: will not be reliable when multiple GPU tasks are running concurrently on the same device context, as CUDA events on multiple streams are untrustworthy.
std::vector< std::unique_ptr < gmx::Gpu3dFft > >	fftSetup
	Vector of FFT setups.
gmx::EnumerationArray < PmeStage, GpuRegionTimer >	timingEvents
	All the timers one might use.
std::set< PmeStage >	activeTimers
	Indices of timingEvents actually used.
int	coordinatesSize = 0
	The kernelParams.atoms.coordinates float element count (actual)
int	coordinatesSizeAlloc = 0
	The kernelParams.atoms.coordinates float element count (reserved)
int	forcesSize = 0
	The kernelParams.atoms.forces float element count (actual)
int	forcesSizeAlloc = 0
	The kernelParams.atoms.forces float element count (reserved)
int	gridlineIndicesSize = 0
	The kernelParams.atoms.gridlineIndices int element count (actual)
int	gridlineIndicesSizeAlloc = 0
	The kernelParams.atoms.gridlineIndices int element count (reserved)
int	splineDataSize = 0
	Both the kernelParams.atoms.theta and kernelParams.atoms.dtheta float element count (actual)
int	splineDataSizeAlloc = 0
	Both the kernelParams.atoms.theta and kernelParams.atoms.dtheta float element count (reserved)
int	coefficientsSize [2] = { 0, 0 }
	The kernelParams.atoms.coefficients float element count (actual)
int	coefficientsCapacity [2] = { 0, 0 }
	The kernelParams.atoms.coefficients float element count (reserved)
int	splineValuesSize [2] = { 0, 0 }
	The kernelParams.grid.splineValuesArray float element count (actual)
int	splineValuesCapacity [2] = { 0, 0 }
	The kernelParams.grid.splineValuesArray float element count (reserved)
int	realGridSize [2] = { 0, 0 }
	The kernelParams.grid.realGrid float element count (actual)
int	realGridCapacity [2] = { 0, 0 }
	The kernelParams.grid.realGrid float element count (reserved)
int	complexGridSize [2] = { 0, 0 }
	The kernelParams.grid.fourierGrid float (not float2!) element count (actual)
int	complexGridCapacity [2] = { 0, 0 }
	The kernelParams.grid.fourierGrid float (not float2!) element count (reserved)
int	overlapXSizeLeft = 0
	Buffer size used to transfer PME grid overlap region in X-dimension.
int	overlapXCapacityLeft = 0
	Buffer capacity used to transfer PME grid overlap region in X-dimension.
int	overlapXSizeRight = 0
	Buffer size used to transfer PME grid overlap region in X-dimension.
int	overlapXCapacityRight = 0
	Buffer capacity used to transfer PME grid overlap region in X-dimension.
int	overlapYSendSizeLeft = 0
	Buffer capacity used to send PME grid overlap region in Y-dimension.
int	overlapYSendCapacityLeft = 0
	Buffer capacity used to send PME grid overlap region in Y-dimension.
int	overlapYRecvSizeLeft = 0
	Buffer size used to recv PME grid overlap region in Y-dimension.
int	overlapYRecvCapacityLeft = 0
	Buffer capacity used to recv PME grid overlap region in Y-dimension.
int	overlapYSendSizeRight = 0
	Buffer capacity used to send PME grid overlap region in Y-dimension.
int	overlapYSendCapacityRight = 0
	Buffer capacity used to send PME grid overlap region in Y-dimension.
int	overlapYRecvSizeRight = 0
	Buffer size used to recv PME grid overlap region in Y-dimension.
int	overlapYRecvCapacityRight = 0
	Buffer capacity used to recv PME grid overlap region in Y-dimension.
DeviceBuffer< float >	d_recvGridLeftX = nullptr
	Buffer used to transfer PME grid overlap region in X-dimension.
DeviceBuffer< float >	d_recvGridRightX = nullptr
	Buffer used to transfer PME grid overlap region in X-dimension.
DeviceBuffer< float >	d_sendGridLeftY = nullptr
	Buffer used to send PME grid overlap region in Y-dimension.
DeviceBuffer< float >	d_recvGridLeftY = nullptr
	Buffer used to recv PME grid overlap region in Y-dimension.
DeviceBuffer< float >	d_sendGridRightY = nullptr
	Buffer used to send PME grid overlap region in Y-dimension.
DeviceBuffer< float >	d_recvGridRightY = nullptr
	Buffer used to recv PME grid overlap region in Y-dimension.

Constructor & Destructor Documentation

PmeGpuSpecific::PmeGpuSpecific ( const DeviceContext &  deviceContext, const DeviceStream &  pmeStream  )

inline

Constructor.

Parameters

[in]	deviceContext	GPU device context
[in]	pmeStream	GPU pme stream.

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The documentation for this struct was generated from the following file:

• src/gromacs/ewald/pme_gpu_types_host_impl.h