SharedMemory Class Reference

#include <SharedMemory.h>

Inheritance diagram for SharedMemory:

Public Member Functions
	SharedMemory ()
	~SharedMemory ()
void	SetCommunicator (Grid_MPI_Comm comm)
void	ShmBarrier (void)
void	SharedMemoryTest (void)
void *	ShmBufferSelf (void)
void *	ShmBuffer (int rank)
void *	ShmBufferTranslate (int rank, void *local_p)
void *	ShmBufferMalloc (size_t bytes)
void	ShmBufferFreeAll (void)
int	NodeCount (void)
int	RankCount (void)

Protected Attributes
Grid_MPI_Comm	ShmComm
int	ShmRank
int	ShmSize
std::vector< void * >	ShmCommBufs
std::vector< int >	ShmRanks

Private Attributes
size_t	heap_top
size_t	heap_bytes
size_t	heap_size

Static Private Attributes
static const int	MAXLOG2RANKSPERNODE

Detailed Description

Definition at line 148 of file SharedMemory.h.

Constructor & Destructor Documentation

SharedMemory()

SharedMemory::SharedMemory ( )

inline

Definition at line 173 of file SharedMemory.h.

~SharedMemory()

SharedMemory::~SharedMemory

(

)

Definition at line 1020 of file SharedMemoryMPI.cc.

References ShmComm.

Member Function Documentation

SetCommunicator()

void SharedMemory::SetCommunicator

(

Grid_MPI_Comm

comm

)

Definition at line 899 of file SharedMemoryMPI.cc.

References heap_size, GlobalSharedMemory::ShmAlloc(), GlobalSharedMemory::ShmAllocBytes(), ShmBufferFreeAll(), ShmComm, ShmCommBufs, ShmRank, ShmRanks, ShmSize, GlobalSharedMemory::WorldShmCommBufs, and GlobalSharedMemory::WorldShmRank.

Referenced by CartesianCommunicator::CartesianCommunicator(), and CartesianCommunicator::CartesianCommunicator().

ShmBarrier()

void SharedMemory::ShmBarrier

(

void

)

Definition at line 966 of file SharedMemoryMPI.cc.

References ShmComm.

Referenced by SharedMemoryTest().

SharedMemoryTest()

void SharedMemory::SharedMemoryTest

(

void

)

Definition at line 973 of file SharedMemoryMPI.cc.

References acceleratorCopyFromDevice(), acceleratorCopyToDevice(), GridLogDebug, ShmBarrier(), ShmCommBufs, ShmRank, ShmSize, and GlobalSharedMemory::WorldNode.

ShmBufferSelf()

void * SharedMemory::ShmBufferSelf

(

void

)

Definition at line 112 of file SharedMemory.cc.

References ShmCommBufs, and ShmRank.

Referenced by ShmBufferFreeAll().

ShmBuffer()

void * SharedMemory::ShmBuffer

(

int

rank

)

Definition at line 997 of file SharedMemoryMPI.cc.

References ShmCommBufs, and ShmRanks.

ShmBufferTranslate()

void * SharedMemory::ShmBufferTranslate	(	int	rank,
		void *	local_p )

Definition at line 1006 of file SharedMemoryMPI.cc.

References ShmCommBufs, ShmRank, and ShmRanks.

Referenced by CartesianCommunicator::StencilSendToRecvFromBegin().

ShmBufferMalloc()

void * SharedMemory::ShmBufferMalloc

(

size_t

bytes

)

Definition at line 92 of file SharedMemory.cc.

References heap_bytes, heap_size, and heap_top.

ShmBufferFreeAll()

void SharedMemory::ShmBufferFreeAll

(

void

)

Definition at line 108 of file SharedMemory.cc.

References heap_bytes, heap_top, and ShmBufferSelf().

Referenced by SetCommunicator().

NodeCount()

int SharedMemory::NodeCount ( void )

inline

Definition at line 202 of file SharedMemory.h.

References GlobalSharedMemory::WorldNodes.

RankCount()

int SharedMemory::RankCount ( void )

inline

Definition at line 203 of file SharedMemory.h.

References GlobalSharedMemory::WorldSize.

Field Documentation

MAXLOG2RANKSPERNODE

const int SharedMemory::MAXLOG2RANKSPERNODE

staticprivate

Definition at line 151 of file SharedMemory.h.

heap_top

size_t SharedMemory::heap_top

private

Definition at line 153 of file SharedMemory.h.

Referenced by ShmBufferFreeAll(), and ShmBufferMalloc().

heap_bytes

size_t SharedMemory::heap_bytes

private

Definition at line 154 of file SharedMemory.h.

Referenced by ShmBufferFreeAll(), and ShmBufferMalloc().

heap_size

size_t SharedMemory::heap_size

private

Definition at line 155 of file SharedMemory.h.

Referenced by SetCommunicator(), and ShmBufferMalloc().

ShmComm

Grid_MPI_Comm SharedMemory::ShmComm

protected

Definition at line 166 of file SharedMemory.h.

Referenced by SetCommunicator(), ShmBarrier(), CartesianCommunicator::StencilBarrier(), and ~SharedMemory().

ShmRank

int SharedMemory::ShmRank

protected

Definition at line 167 of file SharedMemory.h.

Referenced by SetCommunicator(), SharedMemoryTest(), ShmBufferSelf(), ShmBufferTranslate(), and CartesianCommunicator::StencilSendToRecvFromBegin().

ShmSize

int SharedMemory::ShmSize

protected

Definition at line 168 of file SharedMemory.h.

Referenced by SetCommunicator(), and SharedMemoryTest().

ShmCommBufs

std::vector<void *> SharedMemory::ShmCommBufs

protected

Definition at line 169 of file SharedMemory.h.

Referenced by SetCommunicator(), SharedMemoryTest(), ShmBuffer(), ShmBufferSelf(), and ShmBufferTranslate().

ShmRanks

std::vector<int> SharedMemory::ShmRanks

protected

Definition at line 170 of file SharedMemory.h.

Referenced by CartesianCommunicator::IsOffNode(), SetCommunicator(), ShmBuffer(), ShmBufferTranslate(), and CartesianCommunicator::StencilSendToRecvFromBegin().

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The documentation for this class was generated from the following files:

• Grid/communicator/SharedMemory.h
• Grid/communicator/SharedMemory.cc
• Grid/communicator/SharedMemoryMPI.cc
• Grid/communicator/SharedMemoryNone.cc