Jpetra::CcjSupport::CcjLink Class Reference

List of all members.

Public Member Functions
	CcjLink (ColGroupMaster groupMaster) throws CCJException
String	getMyHostName ()
int	getNumVnodes ()
int	getRank ()
ColGroup	getGroup ()
void	barrier ()
Serializable	broadcast (Serializable value, int root)
Serializable[]	gatherAll (Serializable[] myElements)
int[]	gatherAll (int[] myElements)
int[][]	gatherAll2dArray (int[] myElements)
double[]	gatherAll (double[] myElements)
double[]	sumAll (double[] partialSums)
int[]	sumAll (int[] partialSums)
int[]	maxAll (int[] partialMaxs)
double[]	maxAll (double[] partialMaxs)
Serializable	maxAll (Serializable partialMaxs)
double[]	minAll (double[] partialMins)
Serializable	minAll (Serializable partialMins)
int[]	minAll (int[] partialMins)
double[]	scanSums (double[] myElements)
int[]	scanSums (int[] myElements)
int[]	scatter2dArray (int[][] in)
int[]	scatterIntArray (int[] in)
int[][]	gather (int[] in)
Serializable[][]	gather (Serializable[] in)
void	setupReceives (int numReceives)
Serializable	receive (int senderId)
void	send (int[] exportObject, int destinationVnode)
void	send (double[] exportObject, int destinationVnode)
void	send (Serializable exportObject, int destinationVnode)
void	run ()

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Detailed Description

CcjLink provides the wrappers and data representation objects that CcjComm uses to interact with CCJ.

Author:

Jason Cross

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Constructor & Destructor Documentation

Jpetra::CcjSupport::CcjLink::CcjLink

(

ColGroupMaster

groupMaster

)

throws CCJException [inline]

Contacts the root vnode and joins the vnode group unless this is the root vnode, then it listens for connections.

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Member Function Documentation

void Jpetra::CcjSupport::CcjLink::barrier

(

)

[inline]

Wrapper to CCJ barrier. Causes each vnode in group</group> to wait until all vnodees are ready.

Serializable Jpetra::CcjSupport::CcjLink::broadcast	(	Serializable	value,
		int	root
	)		[inline]

Wrapper to CCJ broadcast. Broadcasts value from the root vnode to all other vnodees in group.

int [] Jpetra::CcjSupport::CcjLink::gatherAll

(

int[]

myElements

)

[inline]

Wrapper to CCJ allGather. Broadcasts value from the root vnode to all other vnodees in group.

double [] Jpetra::CcjSupport::CcjLink::gatherAll

(

double[]

myElements

)

[inline]

Wrapper to CCJ allGather.

Serializable [] Jpetra::CcjSupport::CcjLink::gatherAll

(

Serializable[]

myElements

)

[inline]

Wrapper to CCJ allGather. Broadcasts value from the root vnode to all other vnodees in group.

int Jpetra::CcjSupport::CcjLink::getNumVnodes

(

)

[inline]

Accessor for numVnodes provided by CCJ.

Returns:

numVnodes

int Jpetra::CcjSupport::CcjLink::getRank

(

)

[inline]

Accessor for rank provided by CCJ.

Returns:

rank

int [] Jpetra::CcjSupport::CcjLink::maxAll

(

int[]

partialMaxs

)

[inline]

Wrapper to CCJ allReduce.

double [] Jpetra::CcjSupport::CcjLink::maxAll

(

double[]

partialMaxs

)

[inline]

Wrapper to CCJ allReduce.

Serializable Jpetra::CcjSupport::CcjLink::maxAll

(

Serializable

partialMaxs

)

[inline]

Wrapper to CCJ allReduce.

double [] Jpetra::CcjSupport::CcjLink::minAll

(

double[]

partialMins

)

[inline]

Wrapper to CCJ allReduce.

Serializable Jpetra::CcjSupport::CcjLink::minAll

(

Serializable

partialMins

)

[inline]

Wrapper to CCJ allReduce.

int [] Jpetra::CcjSupport::CcjLink::minAll

(

int[]

partialMins

)

[inline]

Wrapper to CCJ allReduce.

void Jpetra::CcjSupport::CcjLink::run

(

)

[inline]

not used but required to extend CCJ ColMember

int [] Jpetra::CcjSupport::CcjLink::scanSums

(

int[]

myElements

)

[inline]

Wrapper to CCJ allGather then calls CcjGatherIntArray.scanSums().

double [] Jpetra::CcjSupport::CcjLink::scanSums

(

double[]

myElements

)

[inline]

Wrapper to CCJ allGather then calls CcjGatherDoubleArray.scanSums().

void Jpetra::CcjSupport::CcjLink::send	(	Serializable	exportObject,
		int	destinationVnode
	)		[inline]

Sends a Serializable arry to a single specified vnode. Wrapper to CCJ send_async Note: this is NOT a blocking operation.

Parameters:

exportObject	the Serializable array to be sent
destinationVnode	the vnode ID of the receiving vnode

void Jpetra::CcjSupport::CcjLink::send	(	int[]	exportObject,
		int	destinationVnode
	)		[inline]

Sends an int arry to a single specified vnode. Wrapper to CCJ send_async Note: this is NOT a blocking operation.

Parameters:

exportObject	the int array to be sent
destinationVnode	the vnode ID of the receiving vnode

void Jpetra::CcjSupport::CcjLink::send	(	double[]	exportObject,
		int	destinationVnode
	)		[inline]

Sends a double arry to a single specified vnode. Wrapper to CCJ send_async Note: this is NOT a blocking operation.

Parameters:

exportObject	the double array to be sent
destinationVnode	the vnode ID of the receiving vnode

void Jpetra::CcjSupport::CcjLink::setupReceives

(

int

numReceives

)

[inline]

Wrapper to CCJ setupRecords which tells CCJ how many messages to expect to receive.

Parameters:

numReceives

the number of messages that CCJ should expect to receive

int [] Jpetra::CcjSupport::CcjLink::sumAll

(

int[]

partialSums

)

[inline]

Wrapper to CCJ allReduce.

double [] Jpetra::CcjSupport::CcjLink::sumAll

(

double[]

partialSums

)

[inline]

Wrapper to CCJ allReduce.

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

• CcjLink.java