com.cmpware.cmp.networks
Class Torus

java.lang.Object
  com.cmpware.cmp.Network
      com.cmpware.cmp.networks.Torus

public class Torus
extends Network

This implements a 2D Torus (a 2D grid with the ends connected around -- a dougnhut) network. Each processor also contains a "null device" which is an unsynchronized pipeline register which goes nowhere. This is often useful in software for terminating a data stream.

Copyright (c) 2004, 2005, 2006 Cmpware, Inc. All Rights Reserved.

Author:

SAG

Field Summary

static java.lang.String	copyright Copyright string
static int	DEV_NULL The address of the 'null device' IO register
static int	EAST The address of the 'east' IO register
static int	IO_ANCHOR The start address of the IO registers
static int	NORTH The address of the 'north' IO register
static int	SOUTH The address of the 'south' IO register
static int	WEST The address of the 'west' IO register

Constructor Summary

Torus()

Method Summary

void	connectNetwork(Multiprocessor mp, java.lang.String linkName) This method is called to build the interconnection network for the newly allocated processor array.

Methods inherited from class com.cmpware.cmp.Network

get

Methods inherited from class java.lang.Object

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

Field Detail

copyright

public static final java.lang.String copyright

Copyright string

See Also:

Constant Field Values

IO_ANCHOR

public static int IO_ANCHOR

The start address of the IO registers

NORTH

public static int NORTH

The address of the 'north' IO register

EAST

public static int EAST

The address of the 'east' IO register

SOUTH

public static int SOUTH

The address of the 'south' IO register

WEST

public static int WEST

The address of the 'west' IO register

DEV_NULL

public static int DEV_NULL

The address of the 'null device' IO register

Constructor Detail

Torus

public Torus()

Method Detail

connectNetwork

public void connectNetwork(Multiprocessor mp,
                           java.lang.String linkName)
                    throws LinkException

Description copied from class: Network

This method is called to build the interconnection network for the newly allocated processor array.

Specified by:

connectNetwork in class Network

Parameters:

mp - The multiprocessor to be connected.

linkName - The name of the link type to be used to build this network. This shouyld be a fully qualified class name. This parameter may or may not be used in this method, depending on the type of network constructed.

Throws:

LinkException - if there is a problem allocating or using the Link objects.