mpi

Class MPI

java.lang.Object

mpi.MPI

public class MPI
extends java.lang.Object

This class represents the MPI environment.

Field Summary

Fields

Modifier and Type	Field and Description
static int	ANY_SOURCE
static int	ANY_TAG
static Op	BAND
static Datatype	BOOLEAN
static Op	BOR
static int	BSEND_OVERHEAD
static Op	BXOR
static Datatype	BYTE
static int	CART
static Datatype	CHAR
static Comm	COMM_NULL
static Comm	COMM_SELF
static Intracomm	COMM_WORLD
static int	CONGRUENT
static Datatype	DOUBLE
static Datatype	DOUBLE2
static Status	EMPTY_STATUS
static Datatype	FLOAT
static Datatype	FLOAT2
static int	GRAPH
static Group	GROUP_EMPTY
static Group	GROUP_NULL
static int	HOST
static int	IDENT
static Info	INFO_NULL
static Datatype	INT
static Datatype	INT2
static int	IO
static Op	LAND
static Datatype	LB
static Datatype	LONG
static Datatype	LONG2
static Op	LOR
static Op	LXOR
static Op	MAX
static Op	MAXLOC
static Op	MIN
static Op	MINLOC
static Datatype	NULL
static int	NUM_OF_PROCESSORS
static Datatype	OBJECT
static Datatype	PACKED Not supported in the current release
static int	PROC_NULL
static Op	PROD
static int	RECV_OVERHEAD
static Request	REQUEST_NULL
static int	SEND_OVERHEAD
static Datatype	SHORT
static Datatype	SHORT2 Not supported in the current release
static int	SIMILAR
static Op	SUM
static int	TAG_UB
static int	THREAD_FUNNELED
static int	THREAD_MULTIPLE
static int	THREAD_SERIALIZED
static int	THREAD_SINGLE
static Datatype	UB
static int	UNDEFINED
static int	UNEQUAL

Constructor Summary

Constructors

Constructor and Description
MPI()

Method Summary

Modifier and Type	Method and Description
static void	attachBuffer(java.nio.ByteBuffer userBuffer) Provides to MPI a buffer in user's memory to be used for buffering outgoing messages.
static void	detachBuffer() Detach the buffer currently associated with MPI.
static Errhandler	Errorhandler_get() Gets the error handler Not Implemented in the current release
static void	Errorhandler_set(Errhandler errhandler) Set Error Handler Not Implemented in the current release
static void	Finalize() Finalize MPI.
static java.lang.String	getProcessorName() Returns the name of the processor on which it is called.
static java.lang.String[]	Init(java.lang.String[] argv) Initialize MPI.
static int	InitThread(java.lang.String[] args, int required) Used to initialize MPI with certain level of threadedness ...
static boolean	isInitialized() Test if MPI has been initialized.
static boolean	isThreadMain() Returns true if this thread initialized MPI
static int	queryThread() Returns the level of thread support provided by the MPI library and the underlying device selected
static double	wtick() Returns resolution of timer.
static double	wtime() Returns wallclock time.

Methods inherited from class java.lang.Object

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

Field Detail

NUM_OF_PROCESSORS

public static final int NUM_OF_PROCESSORS

INFO_NULL

public static final Info INFO_NULL

NULL

public static Datatype NULL

BYTE

public static Datatype BYTE

CHAR

public static Datatype CHAR

SHORT

public static Datatype SHORT

BOOLEAN

public static Datatype BOOLEAN

INT

public static Datatype INT

LONG

public static Datatype LONG

FLOAT

public static Datatype FLOAT

DOUBLE

public static Datatype DOUBLE

PACKED

public static Datatype PACKED

Not supported in the current release

LB

public static Datatype LB

UB

public static Datatype UB

OBJECT

public static Datatype OBJECT

THREAD_SINGLE

public static int THREAD_SINGLE

THREAD_FUNNELED

public static int THREAD_FUNNELED

THREAD_SERIALIZED

public static int THREAD_SERIALIZED

THREAD_MULTIPLE

public static int THREAD_MULTIPLE

SHORT2

public static Datatype SHORT2

Not supported in the current release

INT2

public static Datatype INT2

LONG2

public static Datatype LONG2

FLOAT2

public static Datatype FLOAT2

DOUBLE2

public static Datatype DOUBLE2

MAX

public static Op MAX

MIN

public static Op MIN

SUM

public static Op SUM

PROD

public static Op PROD

LAND

public static Op LAND

BAND

public static Op BAND

LOR

public static Op LOR

BOR

public static Op BOR

LXOR

public static Op LXOR

BXOR

public static Op BXOR

MAXLOC

public static Op MAXLOC

MINLOC

public static Op MINLOC

ANY_SOURCE

public static int ANY_SOURCE

ANY_TAG

public static int ANY_TAG

EMPTY_STATUS

public static Status EMPTY_STATUS

PROC_NULL

public static int PROC_NULL

GRAPH

public static int GRAPH

CART

public static int CART

BSEND_OVERHEAD

public static int BSEND_OVERHEAD

UNDEFINED

public static int UNDEFINED

IDENT

public static int IDENT

CONGRUENT

public static int CONGRUENT

SIMILAR

public static int SIMILAR

UNEQUAL

public static int UNEQUAL

TAG_UB

public static int TAG_UB

HOST

public static int HOST

IO

public static int IO

SEND_OVERHEAD

public static int SEND_OVERHEAD

RECV_OVERHEAD

public static int RECV_OVERHEAD

GROUP_EMPTY

public static Group GROUP_EMPTY

GROUP_NULL

public static Group GROUP_NULL

COMM_WORLD

public static Intracomm COMM_WORLD

COMM_SELF

public static Comm COMM_SELF

COMM_NULL

public static Comm COMM_NULL

REQUEST_NULL

public static Request REQUEST_NULL

Constructor Detail

MPI

public MPI()

Method Detail

attachBuffer

public static void attachBuffer(java.nio.ByteBuffer userBuffer)
                         throws MPIException

Provides to MPI a buffer in user's memory to be used for buffering outgoing messages.

Not Implemented in the current release

.

Parameters:

userBuffer - the user buffer.

Java binding of the MPI operation MPI_BUFFER_ATTACH.

Throws:

MPIException - Points out that an MPI exception has occured.

detachBuffer

public static void detachBuffer()
                         throws MPIException

Detach the buffer currently associated with MPI.

Not Implemented in the current release

. Java binding of the MPI operation MPI_BUFFER_DETACH.

Throws:

MPIException - Points out that an MPI exception has occured.

InitThread

public static int InitThread(java.lang.String[] args,
                             int required)
                      throws MPIException

Used to initialize MPI with certain level of threadedness ...

Parameters:

args - arguments to main method.

required - Level of desired thread support.

Returns:

level of provided thread support.

Java binding of the MPI operation MPI_INIT_THREAD.

Throws:

MPIException - Points out that an MPI exception has occured.

isThreadMain

public static boolean isThreadMain()

Returns true if this thread initialized MPI

Returns:

true for thread which initialized MPI.

queryThread

public static int queryThread()

Returns the level of thread support provided by the MPI library and the underlying device selected

Returns:

MPI.THREAD_MULTIPLE.

Init

public static java.lang.String[] Init(java.lang.String[] argv)
                               throws MPIException

Initialize MPI.

Parameters:

argv - arguments to main method.

Returns:

arguments passed

Java binding of the MPI operation MPI_INIT.

Throws:

MPIException - Points out that an MPI exception has occured.

Finalize

public static void Finalize()
                     throws MPIException

Finalize MPI.

Java binding of the MPI operation MPI_FINALIZE.

Throws:

MPIException - Points out that an MPI exception has occured.

getProcessorName

public static java.lang.String getProcessorName()
                                         throws MPIException

Returns the name of the processor on which it is called.

Returns:

a unique specifier for the actual node.

Java binding of the MPI operation MPI_GET_PROCESSOR_NAME.

Throws:

MPIException - Points out that an MPI exception has occured.

Errorhandler_set

public static void Errorhandler_set(Errhandler errhandler)
                             throws MPIException

Set Error Handler

Not Implemented in the current release

Parameters:

errhandler - error handler.

Throws:

MPIException - Points out that an MPI exception has occured.

Errorhandler_get

public static Errhandler Errorhandler_get()
                                   throws MPIException

Gets the error handler

Not Implemented in the current release

Returns:

error handler

Throws:

MPIException - Points out that an MPI exception has occured.

wtime

public static double wtime()
                    throws MPIException

Returns wallclock time.

Returns:

elapsed wallclock time in seconds since sometime in the past.

Java binding of the MPI operation MPI_WTIME.

Throws:

MPIException - Points out that an MPI exception has occured.

wtick

public static double wtick()
                    throws MPIException

Returns resolution of timer.

Returns:

resolution of wtime in seconds.

Java binding of the MPI operation MPI_WTICK.

Throws:

MPIException - Points out that an MPI exception has occured.

isInitialized

public static boolean isInitialized()
                             throws MPIException

Test if MPI has been initialized.

Returns:

true if init has been called, false otherwise.

Java binding of the MPI operation MPI_INITIALIZED.

Throws:

MPIException - Points out that an MPI exception has occured.