org.ojalgo.machine
Class VirtualMachine

java.lang.Object
  org.ojalgo.machine.BasicMachine
      org.ojalgo.machine.VirtualMachine

public final class VirtualMachine
extends BasicMachine

Field Summary

String	architecture
long	cacheL1 The size of one L1 cache unit in bytes.
long	cacheL2 The size of one L2 cache unit in bytes.
long	cacheL3 The size of one L3 cache unit in bytes.
int	cores The total number of processor cores.
int	processors The number of L3 cache units.
int	units The number of L2 cache units.

Fields inherited from class org.ojalgo.machine.BasicMachine

memory, threads

Method Summary

void	collectGarbage()
IntCount	countCores()
IntCount	countProcessors()
IntCount	countThreads()
IntCount	countUnits()
boolean	equals(Object obj)
static String	getArchitecture()
int	getAvailableDim1D(long elementSize)
int	getAvailableDim2D(long elementSize)
long	getAvailableMemory()
int	getCacheL1Dim1D(long elementSize)
int	getCacheL1Dim2D(long elementSize)
int	getCacheL2Dim1D(long elementSize) The dimension (length) of an array that will fit in an L2 cache unit given the input element size.
int	getCacheL2Dim2D(long elementSize) The dimension (row and/or col count) of a (2 dimensional) array that will fit in an L2 cache unit given the input element size.
int	getCacheL3Dim1D(long elementSize)
int	getCacheL3Dim2D(long elementSize)
static long	getMemory()
int	getMemoryDim1D(long elementSize)
int	getMemoryDim2D(long elementSize)
static int	getThreads()
int	hashCode()
boolean	isMultiCore()
boolean	isMultiProcessor()
boolean	isMultiThread()
boolean	isMultiUnit()
String	toString()

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Field Detail

cacheL1

public final long cacheL1

The size of one L1 cache unit in bytes. Defined to be the memory of the last BasicMachine specified.

cacheL2

public final long cacheL2

The size of one L2 cache unit in bytes. Defined to be the memory of the second last BasicMachine specified.

cacheL3

public final long cacheL3

The size of one L3 cache unit in bytes. Defined to be the memory of the second BasicMachine specified.

architecture

public final String architecture

cores

public final int cores

The total number of processor cores.

processors

public final int processors

The number of L3 cache units. (It is assumed there is 1 L3 cache unit per processor.) If no L3 cache is specified then this will be equal to units.

units

public final int units

The number of L2 cache units. If no L2 cache is specified then this will be equal to 1.

Method Detail

getArchitecture

public static String getArchitecture()

getMemory

public static long getMemory()

getThreads

public static int getThreads()

collectGarbage

public void collectGarbage()

equals

public boolean equals(Object obj)

getAvailableDim1D

public int getAvailableDim1D(long elementSize)

getAvailableDim2D

public int getAvailableDim2D(long elementSize)

getAvailableMemory

public long getAvailableMemory()

hashCode

public int hashCode()

toString

public String toString()

Overrides:

toString in class BasicMachine

countCores

public IntCount countCores()

countProcessors

public IntCount countProcessors()

countThreads

public IntCount countThreads()

countUnits

public IntCount countUnits()

getCacheL1Dim1D

public int getCacheL1Dim1D(long elementSize)

getCacheL1Dim2D

public int getCacheL1Dim2D(long elementSize)

getCacheL2Dim1D

public int getCacheL2Dim1D(long elementSize)

The dimension (length) of an array that will fit in an L2 cache unit given the input element size.

getCacheL2Dim2D

public int getCacheL2Dim2D(long elementSize)

The dimension (row and/or col count) of a (2 dimensional) array that will fit in an L2 cache unit given the input element size.

getCacheL3Dim1D

public int getCacheL3Dim1D(long elementSize)

getCacheL3Dim2D

public int getCacheL3Dim2D(long elementSize)

getMemoryDim1D

public int getMemoryDim1D(long elementSize)

getMemoryDim2D

public int getMemoryDim2D(long elementSize)

isMultiCore

public boolean isMultiCore()

isMultiProcessor

public boolean isMultiProcessor()

isMultiThread

public boolean isMultiThread()

isMultiUnit

public boolean isMultiUnit()