Jpetra.CcjSupport.CcjLink Class Reference

Inheritance diagram for Jpetra.CcjSupport.CcjLink:

Collaboration diagram for Jpetra.CcjSupport.CcjLink:

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 ()

Detailed Description

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

Author

Jason Cross

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.

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.

Referenced by Jpetra.CcjComm.broadcast().

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.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.

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

double [] Jpetra.CcjSupport.CcjLink.scanSums ( double[]  myElements )

inline

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

int [] Jpetra.CcjSupport.CcjLink.scanSums ( int[]  myElements )

inline

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

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.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.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

double [] Jpetra.CcjSupport.CcjLink.sumAll ( double[]  partialSums )

inline

Wrapper to CCJ allReduce.

int [] Jpetra.CcjSupport.CcjLink.sumAll ( int[]  partialSums )

inline

Wrapper to CCJ allReduce.

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

• CcjLink.java