MPI

java.lang.Object
- mpi.MPI

public class MPI
extends java.lang.Object

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` Overhead incurred by buffered send.
`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 boolean`	`DEBUG`
`static Datatype`	`DOUBLE`
`static Datatype`	`DOUBLE2`
`static Status`	`EMPTY_STATUS`
`static Errhandler`	`ERRORS_ARE_FATAL`
`static Errhandler`	`ERRORS_RETURN`
`static Datatype`	`FLOAT`
`static Datatype`	`FLOAT2`
`static int`	`GRAPH`
`static Group`	`GROUP_EMPTY`
`static Group`	`GROUP_NULL`
`static int`	`HOST`
`static int`	`IDENT`
`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`
`static int`	`PROC_NULL`
`static Op`	`PROD`
`static int`	`RECV_OVERHEAD` These should be accessed after calling MPI.Init()
`static Request`	`REQUEST_NULL`
`static int`	`SEND_OVERHEAD` These should be accessed after calling MPI.Init()
`static Datatype`	`SHORT`
`static Datatype`	`SHORT2` Its actually not good to call the following basic datatypes because they are not ...
`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

Methods
Modifier and Type	Method and Description
`static void`	`Buffer_attach(java.nio.ByteBuffer userBuffer)` Provides to MPI a buffer in user's memory to be used for buffering outgoing messages.
`static void`	`Buffer_detach()` 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`	`Get_processor_name()` Returns the name of the processor on which it is called.
`static java.lang.String[]`	`Init(java.lang.String[] argv)` Initialize MPI.
`static boolean`	`Initialized()` Test if MPI has been initialized.
`static java.lang.String[]`	`initThread(int required, int provided, java.lang.String[] argv)` Used to initialize MPI with certain level of threadedness ...
`static boolean`	`isMainThread()` 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
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DEBUG
```
public static final boolean DEBUG
```
See Also:

Constant Field Values

COMM_WORLD
```
public static Intracomm COMM_WORLD
```

NUM_OF_PROCESSORS

public static final int NUM_OF_PROCESSORS

UNDEFINED
```
public static int UNDEFINED
```

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
```

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
```
Its actually not good to call the following basic datatypes because they are not ... this will be changed to sometyhing else ...need to think about it

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
```

BSEND_OVERHEAD
```
public static int BSEND_OVERHEAD
```
Overhead incurred by buffered send. This variable should be accessed after calling #Init(String[] args) method.

SEND_OVERHEAD
```
public static int SEND_OVERHEAD
```
These should be accessed after calling MPI.Init()

RECV_OVERHEAD
```
public static int RECV_OVERHEAD
```
These should be accessed after calling MPI.Init()

GROUP_EMPTY
```
public static Group GROUP_EMPTY
```

COMM_SELF
```
public static Comm COMM_SELF
```

IDENT
```
public static final int IDENT
```
See Also:

Constant Field Values

CONGRUENT
```
public static final int CONGRUENT
```
See Also:

Constant Field Values

SIMILAR
```
public static final int SIMILAR
```
See Also:

Constant Field Values

UNEQUAL
```
public static final int UNEQUAL
```
See Also:

Constant Field Values

GRAPH
```
public static int GRAPH
```

CART
```
public static int CART
```

ERRORS_ARE_FATAL

public static Errhandler ERRORS_ARE_FATAL

ERRORS_RETURN
```
public static Errhandler ERRORS_RETURN
```

TAG_UB
```
public static int TAG_UB
```

HOST
```
public static int HOST
```

IO
```
public static int IO
```

REQUEST_NULL
```
public static Request REQUEST_NULL
```

COMM_NULL
```
public static Comm COMM_NULL
```

GROUP_NULL
```
public static Group GROUP_NULL
```

Constructor Detail
- MPI
```
public MPI()
```

Method Detail
- Buffer_attach
```
public static void Buffer_attach(java.nio.ByteBuffer userBuffer)
                          throws MPIException
```
  Provides to MPI a buffer in user's memory to be used for buffering outgoing messages. Java binding of the MPI operation MPI_BUFFER_ATTACH.
  
  Throws:
  
  MPIException
- Buffer_detach
```
public static void Buffer_detach()
                          throws MPIException
```
  Detach the buffer currently associated with MPI. Java binding of the MPI operation MPI_BUFFER_DETACH.
  
  Throws:
  
  MPIException
- initThread
```
public static java.lang.String[] initThread(int required,
                            int provided,
                            java.lang.String[] argv)
```
  Used to initialize MPI with certain level of threadedness ...
- isMainThread
```
public static boolean isMainThread()
```
  Returns true if this thread initialized MPI
- queryThread
```
public static int queryThread()
```
  Returns the level of thread support provided by the MPI library and the underlying device selected
- Init
```
public static java.lang.String[] Init(java.lang.String[] argv)
                               throws MPIException
```
  Initialize MPI.
  
  args arguments to main method.
  
  Java binding of the MPI operation MPI_INIT.
  
  Throws:
  
  MPIException
- Finalize
```
public static void Finalize()
                     throws MPIException
```
  Finalize MPI.
  Java binding of the MPI operation MPI_FINALIZE.
  
  Throws:
  
  MPIException
- Get_processor_name
```
public static java.lang.String Get_processor_name()
                                           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
- Errorhandler_set
```
public static void Errorhandler_set(Errhandler errhandler)
                             throws MPIException
```
  Set Error Handler Not Implemented in the current release
  
  Throws:
  
  MPIException
- Errorhandler_get
```
public static Errhandler Errorhandler_get()
                                   throws MPIException
```
  Gets the error handler Not Implemented in the current release
  
  Throws:
  
  MPIException
- Wtime
```
public static double Wtime()
                    throws MPIException
```
  Returns wallclock time.
  
  returns: elapsed wallclock time in seconds since some time in the past
  
  Java binding of the MPI operation MPI_WTIME.
  
  Throws:
  
  MPIException
- 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
- Initialized
```
public static boolean Initialized()
                           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

Class MPI

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

DEBUG

COMM_WORLD

NUM_OF_PROCESSORS

UNDEFINED

NULL

BYTE

CHAR

SHORT

BOOLEAN

INT

LONG

FLOAT

DOUBLE

PACKED

LB

UB

OBJECT

THREAD_SINGLE

THREAD_FUNNELED

THREAD_SERIALIZED

THREAD_MULTIPLE

SHORT2

INT2

LONG2

FLOAT2

DOUBLE2

MAX

MIN

SUM

PROD

LAND

BAND

LOR

BOR

LXOR

BXOR

MAXLOC

MINLOC

ANY_SOURCE

ANY_TAG

EMPTY_STATUS

PROC_NULL

BSEND_OVERHEAD

SEND_OVERHEAD

RECV_OVERHEAD

GROUP_EMPTY

COMM_SELF

IDENT

CONGRUENT

SIMILAR

UNEQUAL

GRAPH

CART

ERRORS_ARE_FATAL

ERRORS_RETURN

TAG_UB

HOST

IO

REQUEST_NULL

COMM_NULL

GROUP_NULL

Constructor Detail

MPI

Method Detail

Buffer_attach

Buffer_detach

initThread

isMainThread

queryThread

Init

Finalize

Get_processor_name

Errorhandler_set

Errorhandler_get