Package org.flag4j.concurrency

Class Configurations

java.lang.Object

org.flag4j.concurrency.Configurations

public final class Configurations
extends Object

Configurations for standard and concurrent operations.

Field Summary

Fields

Modifier and Type	Field	Description
private static int	blockSize	The block size to use in blocked algorithms.
static final int	DEFAULT_BLOCK_SIZE	The default block size for blocked algorithms.
static final int	DEFAULT_MIN_RECURSIVE_SIZE	The default minimum recursive size for recursive algorithms.
static final int	DEFAULT_NUM_THREADS	The default number of threads to use for concurrent algorithms.

Constructor Summary

Constructors

Modifier	Constructor	Description
private	Configurations()

Method Summary

Modifier and Type	Method	Description
static int	getBlockSize()	Gets the current block size used in blocked algorithms.
static int	getNumThreads()	Gets the current number of threads to be used.
static void	resetAll()	Resets all configurations to their default values.
static void	setBlockSize(int blockSize)	Sets the current block size used in blocked algorithms.
static void	setNumThreads(int numThreads)	Sets the number of threads to use in concurrent algorithms.
static int	setNumThreadsAsAvailableProcessors()	Sets the number of threads for use in concurrent operations as the number of processors available to the Java virtual machine.

Methods inherited from class java.lang.Object

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

Field Details

DEFAULT_NUM_THREADS

public static final int DEFAULT_NUM_THREADS

The default number of threads to use for concurrent algorithms.

DEFAULT_BLOCK_SIZE

public static final int DEFAULT_BLOCK_SIZE

The default block size for blocked algorithms.

See Also:

• Constant Field Values

DEFAULT_MIN_RECURSIVE_SIZE

public static final int DEFAULT_MIN_RECURSIVE_SIZE

The default minimum recursive size for recursive algorithms.

See Also:

• Constant Field Values

blockSize

private static int blockSize

The block size to use in blocked algorithms.

Constructor Details

Configurations

private Configurations()

Method Details

setNumThreadsAsAvailableProcessors

public static int setNumThreadsAsAvailableProcessors()

Sets the number of threads for use in concurrent operations as the number of processors available to the Java virtual machine. Note that this value may change during runtime. This method will include logical cores so the value returned may be higher than the number of physical cores on the machine if hyper-threading is enabled.

Returns:

The new value of numThreads, i.e. the number of available processors.

getNumThreads

public static int getNumThreads()

Gets the current number of threads to be used.

Returns:

Current number of threads to use in concurrent algorithms.

setNumThreads

public static void setNumThreads(int numThreads)

Sets the number of threads to use in concurrent algorithms.

Parameters:

numThreads - Number of threads to use in concurrent algorithms.

getBlockSize

public static int getBlockSize()

Gets the current block size used in blocked algorithms. If it has not been changed it will default to 64.

Returns:

Current block size to use in concurrent algorithms.

setBlockSize

public static void setBlockSize(int blockSize)

Sets the current block size used in blocked algorithms.

Parameters:

blockSize - Block size to be used in concurrent algorithms.

resetAll

public static void resetAll()

Resets all configurations to their default values.