org.ojalgo.machine

Class CommonMachine

java.lang.Object

org.ojalgo.machine.BasicMachine

org.ojalgo.machine.CommonMachine

Direct Known Subclasses:

Hardware, VirtualMachine

public abstract class CommonMachine
extends BasicMachine

Stuff common to Hardware and VirtualMachine.

Author:

apete

Field Summary

Fields

Modifier and Type	Field and Description
String	architecture
long	cache The size of one top level (L3 or L2) cache unit in bytes.
int	cores The total number of processor cores.
int	units The number of top level (L3 or L2) cache units.

Fields inherited from class org.ojalgo.machine.BasicMachine

memory, threads

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	CommonMachine(Hardware hardware, Runtime runtime)
protected	CommonMachine(String architecture, BasicMachine[] levels) new MemoryThreads[] { SYSTEM, L3, L2, L1 } or new MemoryThreads[] { SYSTEM, L2, L1 } or in worst case new MemoryThreads[] { SYSTEM, L1 }

Method Summary

Modifier and Type	Method and Description
IntCount	countCores()
IntCount	countThreads()
IntCount	countUnits()
boolean	equals(Object obj)
long	getCacheElements(long elementSize)
long	getMemoryElements(long elementSize)
int	hashCode()
boolean	isMultiCore()
boolean	isMultiThread()
boolean	isMultiUnit()

Methods inherited from class org.ojalgo.machine.BasicMachine

toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

architecture

public final String architecture

cache

public final long cache

The size of one top level (L3 or L2) cache unit in bytes.

cores

public final int cores

The total number of processor cores.

units

public final int units

The number of top level (L3 or L2) cache units. With L3 cache defined this corresponds to the number of CPU:s.

Constructor Detail

CommonMachine

protected CommonMachine(Hardware hardware,
                        Runtime runtime)

CommonMachine

protected CommonMachine(String architecture,
                        BasicMachine[] levels)

new MemoryThreads[] { SYSTEM, L3, L2, L1 } or new MemoryThreads[] { SYSTEM, L2, L1 } or in worst case new MemoryThreads[] { SYSTEM, L1 }

Method Detail

countCores

public final IntCount countCores()

countThreads

public final IntCount countThreads()

countUnits

public final IntCount countUnits()

equals

public boolean equals(Object obj)

Overrides:

equals in class BasicMachine

getCacheElements

public final long getCacheElements(long elementSize)

getMemoryElements

public final long getMemoryElements(long elementSize)

hashCode

public int hashCode()

Overrides:

hashCode in class BasicMachine

isMultiCore

public final boolean isMultiCore()

isMultiThread

public final boolean isMultiThread()

isMultiUnit

public final boolean isMultiUnit()