gmx::nvshmemHaloExchangeOps Struct Reference

#include <gromacs/domdec/gpuhaloexchange_impl_gpu.h>

Description

Struct encapsulating data for NVSHMEM Enabled GPU Halo Exchange.

Public Attributes
int	putAtomOffsetInReceiverRankXBuf_ = 0
	offset of remote PP rank coord buffer used for nvshmem_put
DeviceBuffer< uint64_t >	d_signalSenderRankX_ = nullptr
	signal object used for notifying rank which will produce/put the halo coordinates
DeviceBuffer< uint64_t >	d_signalReceiverRankF_ = nullptr
	signal object used for notifying rank which will consume the halo forces
uint64_t	signalReceiverRankFCounter_ = 0
	Forces communication signal counter, used to synchronize with the send-to(put)
DeviceBuffer< uint64_t >	d_signalReceiverRankX_ = nullptr
	signal object used for notifying rank which will consume the halo coordinates
uint64_t	signalReceiverRankXCounter_ = 0
	Coordinates communication signal counter, used to synchronize with the send-to(put)
uint32_t	arriveWaitBarrierVal_ = 0
	value to initialize the arrive-wait barrier, this is grid size of X kernel.
uint32_t	gridDimX_ = 0
	Grid size of X kernel.
int	signalObjOffset_ = 0
	offset from which signal object for the given pulse/dim should be used.

Static Public Attributes
static const int	c_nvshmemThreadsPerBlock = 256 * 4
	Thread block size for NVSHMEM based X and F kernels.

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

• src/gromacs/domdec/gpuhaloexchange_impl_gpu.h