mpi

Class Message

java.lang.Object

mpi.Message

public final class Message
extends java.lang.Object

This class represents MPI_Message.

Field Summary

Fields

Modifier and Type	Field and Description
protected long	handle

Constructor Summary

Constructors

Constructor and Description
Message() Creates a MPI_MESSAGE_NULL.

Method Summary

Modifier and Type	Method and Description
Status	imProbe(int source, int tag, Comm comm) Java binding of MPI_IMPROBE.
Request	imRecv(java.nio.Buffer buf, int count, Datatype type) Java binding of MPI_IMRECV.
boolean	isNoProc() Tests if the message is MPI_MESSAGE_NO_PROC.
boolean	isNull() Tests if the message is MPI_MESSAGE_NULL.
Status	mProbe(int source, int tag, Comm comm) Java binding of MPI_MPROBE.
Status	mRecv(java.lang.Object buf, int count, Datatype type) Java binding of MPI_MRECV.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

handle

protected long handle

Constructor Detail

Message

public Message()

Creates a MPI_MESSAGE_NULL.

Method Detail

isNull

public boolean isNull()

Tests if the message is MPI_MESSAGE_NULL.

Returns:

true if the message is MPI_MESSAGE_NULL.

isNoProc

public boolean isNoProc()

Tests if the message is MPI_MESSAGE_NO_PROC.

Returns:

true if the message is MPI_MESSAGE_NO_PROC.

mProbe

public Status mProbe(int source,
                     int tag,
                     Comm comm)
              throws MPIException

Java binding of MPI_MPROBE.

Parameters:

source - rank of the source

tag - message tag

comm - communicator

Returns:

status object

Throws:

MPIException - Signals that an MPI exception of some sort has occurred.

imProbe

public Status imProbe(int source,
                      int tag,
                      Comm comm)
               throws MPIException

Java binding of MPI_IMPROBE.

Parameters:

source - rank of the source

tag - message tag

comm - communicator

Returns:

status object if there is a message, null otherwise

Throws:

MPIException - Signals that an MPI exception of some sort has occurred.

mRecv

public Status mRecv(java.lang.Object buf,
                    int count,
                    Datatype type)
             throws MPIException

Java binding of MPI_MRECV.

Parameters:

buf - receive buffer

count - number of elements in receve buffer

type - datatype of each receive buffer element

Returns:

status object

Throws:

MPIException - Signals that an MPI exception of some sort has occurred.

imRecv

public Request imRecv(java.nio.Buffer buf,
                      int count,
                      Datatype type)
               throws MPIException

Java binding of MPI_IMRECV.

Parameters:

buf - receive buffer

count - number of elements in receve buffer

type - datatype of each receive buffer element

Returns:

request object

Throws:

MPIException - Signals that an MPI exception of some sort has occurred.