Module ojalgo

Package org.ojalgo.machine

Class CommonMachine

java.lang.Object

org.ojalgo.machine.BasicMachine

org.ojalgo.machine.CommonMachine

Direct Known Subclasses:

Hardware, VirtualMachine

abstract class CommonMachine
extends BasicMachine

Stuff common to Hardware and VirtualMachine.

Field Summary

Fields

Modifier and Type	Field	Description
Hardware.Architecture	architecture
long	cache	The size of one top level (L3 or L2) cache unit in bytes.
int	cores	The total number of processor cores.
(package private) static long	K
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

Constructor	Description
CommonMachine(long memoryBytes, int nbThreads, Hardware.Architecture arch, long cacheBytes, int nbCores, int nbUnits)
CommonMachine(Hardware.Architecture arch, BasicMachine[] levels)	new MemoryThreads[] { SYSTEM, L3, L2, L1 } or new MemoryThreads[] { SYSTEM, L2, L1 } or in worst case new MemoryThreads[] { SYSTEM, L1 }
CommonMachine(Hardware hardware, java.lang.Runtime runtime)
CommonMachine(VirtualMachine base, int modUnits, int modCores, int modThreads)

Method Summary

Modifier and Type	Method	Description
long	cache()	The total amount of top level (L3 or L2) cache memory in bytes.
(package private) static long	elements(long availableMemory, long elementSize)
boolean	equals(java.lang.Object obj)
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

K

static final long K

See Also:

Constant Field Values

architecture

public final Hardware.Architecture 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. If there is a L3 cache this usually corresponds to the number of CPU:s.

Constructor Detail

CommonMachine

CommonMachine(Hardware hardware,
              java.lang.Runtime runtime)

CommonMachine

CommonMachine(Hardware.Architecture arch,
              BasicMachine[] levels)

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

CommonMachine

CommonMachine(long memoryBytes,
              int nbThreads,
              Hardware.Architecture arch,
              long cacheBytes,
              int nbCores,
              int nbUnits)

CommonMachine

CommonMachine(VirtualMachine base,
              int modUnits,
              int modCores,
              int modThreads)

Method Detail

elements

static long elements(long availableMemory,
                     long elementSize)

cache

public final long cache()

The total amount of top level (L3 or L2) cache memory in bytes.

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class BasicMachine

hashCode

public int hashCode()

Overrides:

hashCode in class BasicMachine

isMultiCore

public final boolean isMultiCore()

isMultiThread

public final boolean isMultiThread()

isMultiUnit

public final boolean isMultiUnit()