A namespace to hold variables and functions related to MPI. More...

Classes
struct	fillRequest
	Struture to hold data representing a search request. More...

struct	fillResponse
	Struture to hold data representing a response to a request. More...

Enumerations
enum	mpiTags { tagHDF5IO , tagWorkDone , tagFillReq = 8192 , tagFillResp = 16384 }
	Tag numbers for different types of MPI messages. More...

Functions
void	setup (int argc, char *argv[])
	Initial MPI setup.

void	haltRun (std::string msg, errCodes errcode)
	Halt a run because an error has occurred.

void	barrier ()
	Barrier between MPI ranks.

void	shutdown ()
	Shut down communications for normal exit.

Variables
int	nRank

int	myRank

bool	IOProc

int	log2nRank

MPI_Datatype	MPI_Real

MPI_Datatype	MPI_RealVec

MPI_Datatype	MPI_RealTensor2

MPI_Datatype	MPI_Idx

MPI_Datatype	MPI_CRPacket

MPI_Datatype	MPI_CRSource

MPI_Datatype	MPI_FieldQty

MPI_Datatype	MPI_FieldQtyGrad

MPI_Datatype	MPI_RealMechArr

MPI_Datatype	MPI_FillReq

MPI_Datatype	MPI_FillResp

constexpr int	IORank = 0

Detailed Description

A namespace to hold variables and functions related to MPI.

Enumeration Type Documentation

◆ mpiTags

enum criptic::MPIUtil::mpiTags

Tag numbers for different types of MPI messages.

Enumerator
tagHDF5IO	Tag used during HDF5 IO
tagWorkDone	Tag to indicate fill work is done
tagFillReq	Tag for neighbor search messages
tagFillResp	Tag for neighbor search responses

Function Documentation

◆ barrier()

void criptic::MPIUtil::barrier ( )

Barrier between MPI ranks.

This routine is a thin wrapper around MPI_Barrier

◆ haltRun()

void criptic::MPIUtil::haltRun	(	std::string	msg,
		errCodes	errcode
	)

Halt a run because an error has occurred.

Parameters

msg	Error message to output
errcode	Error code to return

This routine shuts down the MPI communication system and exits with the indicated error message and code

◆ setup()

void criptic::MPIUtil::setup	(	int *	argc,
		char **	argv[]
	)

Initial MPI setup.

Parameters

argc	Number of command line arguments
argv	Pointers to command line arguments

This routine initializes MPI communication. If invoked when MPI is disabled at compile time, it simply sets internal flags to indicate that MPI is disabled.

◆ shutdown()

void criptic::MPIUtil::shutdown ( )

Shut down communications for normal exit.

This routine invoked MPI_Finalize to shut down MPI communications, prior to a successful exit.

Variable Documentation

◆ IOProc

bool criptic::MPIUtil::IOProc

Is this the processor that does I/O?

◆ IORank

constexpr int criptic::MPIUtil::IORank = 0

constexpr

Rank that does I/O

◆ log2nRank

int criptic::MPIUtil::log2nRank

log_2 (MPIUtil::nRank)

◆ MPI_CRPacket

MPI_Datatype criptic::MPIUtil::MPI_CRPacket

MPI type for CR packets

◆ MPI_CRSource

MPI_Datatype criptic::MPIUtil::MPI_CRSource

MPI type for CR sources

◆ MPI_FieldQty

MPI_Datatype criptic::MPIUtil::MPI_FieldQty

MPI type for FieldQty

◆ MPI_FieldQtyGrad

MPI_Datatype criptic::MPIUtil::MPI_FieldQtyGrad

MPI type for FieldQtyGrad

◆ MPI_FillReq

MPI_Datatype criptic::MPIUtil::MPI_FillReq

MPI type for fill request

◆ MPI_FillResp

MPI_Datatype criptic::MPIUtil::MPI_FillResp

MPI type for fill response

◆ MPI_Idx

MPI_Datatype criptic::MPIUtil::MPI_Idx

MPI type corresponding to criptic::IdxType

◆ MPI_Real

MPI_Datatype criptic::MPIUtil::MPI_Real

MPI type corresponding to criptic::Real

◆ MPI_RealMechArr

MPI_Datatype criptic::MPIUtil::MPI_RealMechArr

MPI type corresponding to Losses::MechArr<Real>

◆ MPI_RealTensor2

MPI_Datatype criptic::MPIUtil::MPI_RealTensor2

MPI type corresponding to criptic::RealTensor2

◆ MPI_RealVec

MPI_Datatype criptic::MPIUtil::MPI_RealVec

MPI type corresponding to criptic::RealVec

◆ myRank

int criptic::MPIUtil::myRank

Rank of this MPI process

◆ nRank

int criptic::MPIUtil::nRank

Total number of MPI ranks

Classes

Enumerations

Functions

Variables