edu.unh.sdb.datasource

Class CacheMaker

java.lang.Object

edu.unh.sdb.datasource.CacheMaker

public class CacheMaker
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field and Description
static boolean	useCubicForOblique
static boolean	useIsometricCubicForOblique

Constructor Summary

Constructors

Constructor and Description
CacheMaker()

Method Summary

Methods

Modifier and Type	Method and Description
static IntegerIndexSpaceID	computeBestBlockShape(AxisOrdering iteratorOrdering, int[] axisLengths, int elementByteSize, long memAvailable)
static void	computeCacheArrayDimensions(float[] normal, int[] planeShape, int[] cacheBlockDimensions, int[] cacheArrayDimensions, int projectionAxis, int max2Axis, boolean threaded)
static void	computeCacheBlockDimensions(int s, int[] cacheBlockDimensions, float[] normal, int[] spaceDimensions, int dimensionality)
static boolean	computeDimensions(int[] cacheBlockDimensions, int[] cacheArrayDimensions, float[] normal, float[] truePlaneNormal, int[] planeShape, int[] boundingBoxDimensions, int projectionAxis, int dimensionality, int elementByteSize, long memAvailable, boolean threaded)
static int	computeMaxScaleFactor(int projectionAxis, int[] spaceDimensions)
static long	computeRequiredMemory(int[] cacheBlockDimensions, int[] cacheArrayDimensions, int elementByteSize)
static DataSource	createCacheDS(ChunkedDataSource source, ISIterator iter, long memAvailable)
static DataSource	createCacheDS(DataSource source, ISBounds iterationSpace, AxisOrdering iteratorOrdering, long memAvailable)
static DataSource	createCacheDS(DataSource source, ISBoundsIterator iter, long memAvailable)
static DataSource	createCacheDS(DataSource source, ISIterator iter, long memAvailable)
static DataSource	createCacheDS(ObliquePlaneIteratorInterface iter, int[] cacheBlockDimensions, long memAvailable) Create a MultiBlockCache for the given ObliquePlaneIterator using cache blocks of the specified dimensions.
static DataSource	createCacheDS(ObliquePlaneIteratorInterface iter, int[] cacheBlockDimensions, long memAvailable, boolean threaded) Create a MultiBlockCache for the given ObliquePlaneIterator using cache blocks of the specified dimensions.
static DataSource	createCacheDS(ObliquePlaneIteratorInterface iter, long memAvailable)
static DataSource	createCacheDS(ObliquePlaneIteratorInterface iter, long memAvailable, boolean threaded)
static DataSource	createThreadedCacheDS(DataSource source, ISBoundsIterator iter, long memAvailable)
static DataSource	createThreadedCacheDS(DataSource source, ISIterator iter, long memAvailable)
static DataSource	createThreadedSliceCacheDS(DataSource source, ISBounds iterationSpace, int sliceAxis, long memAvailable)
static DataSource	createThreadedSliceCacheDS(DataSource source, ISBoundsIterator iter, long memAvailable)
static DataSource	createThreadedSliceCacheDS(DataSource source, ISIterator iter, long memAvailable)
static int	findMax(float[] normal)
static int	findMin(float[] normal)
protected static int	findSecondMax(float[] vector, int maxindex) Return the index of the element with second largest magnitude
static void	main(java.lang.String[] args)
protected static void	massage(float[] vector) This method finds the smallest magnitude non-zero coordinate and divides the other coordinates by this value.
static boolean	reduceNormal(float[] normal)

Methods inherited from class java.lang.Object

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

Field Detail

useCubicForOblique

public static boolean useCubicForOblique

useIsometricCubicForOblique

public static boolean useIsometricCubicForOblique

Constructor Detail

CacheMaker

public CacheMaker()

Method Detail

createCacheDS

public static DataSource createCacheDS(DataSource source,
                       ISIterator iter,
                       long memAvailable)

createCacheDS

public static DataSource createCacheDS(DataSource source,
                       ISBounds iterationSpace,
                       AxisOrdering iteratorOrdering,
                       long memAvailable)

createCacheDS

public static DataSource createCacheDS(DataSource source,
                       ISBoundsIterator iter,
                       long memAvailable)

createCacheDS

public static DataSource createCacheDS(ChunkedDataSource source,
                       ISIterator iter,
                       long memAvailable)

createCacheDS

public static DataSource createCacheDS(ObliquePlaneIteratorInterface iter,
                       long memAvailable)

createCacheDS

public static DataSource createCacheDS(ObliquePlaneIteratorInterface iter,
                       long memAvailable,
                       boolean threaded)

createCacheDS

public static DataSource createCacheDS(ObliquePlaneIteratorInterface iter,
                       int[] cacheBlockDimensions,
                       long memAvailable)

Create a MultiBlockCache for the given ObliquePlaneIterator using cache blocks of the specified dimensions. This method is meant for evaluation purposes, and would not normally be used.

createCacheDS

public static DataSource createCacheDS(ObliquePlaneIteratorInterface iter,
                       int[] cacheBlockDimensions,
                       long memAvailable,
                       boolean threaded)

Create a MultiBlockCache for the given ObliquePlaneIterator using cache blocks of the specified dimensions. This method is meant for evaluation purposes, and would not normally be used.

reduceNormal

public static boolean reduceNormal(float[] normal)

findMax

public static int findMax(float[] normal)

findMin

public static int findMin(float[] normal)

findSecondMax

protected static int findSecondMax(float[] vector,
                int maxindex)

Return the index of the element with second largest magnitude

computeDimensions

public static boolean computeDimensions(int[] cacheBlockDimensions,
                        int[] cacheArrayDimensions,
                        float[] normal,
                        float[] truePlaneNormal,
                        int[] planeShape,
                        int[] boundingBoxDimensions,
                        int projectionAxis,
                        int dimensionality,
                        int elementByteSize,
                        long memAvailable,
                        boolean threaded)

computeRequiredMemory

public static long computeRequiredMemory(int[] cacheBlockDimensions,
                         int[] cacheArrayDimensions,
                         int elementByteSize)

computeMaxScaleFactor

public static int computeMaxScaleFactor(int projectionAxis,
                        int[] spaceDimensions)

computeCacheBlockDimensions

public static void computeCacheBlockDimensions(int s,
                               int[] cacheBlockDimensions,
                               float[] normal,
                               int[] spaceDimensions,
                               int dimensionality)

computeCacheArrayDimensions

public static void computeCacheArrayDimensions(float[] normal,
                               int[] planeShape,
                               int[] cacheBlockDimensions,
                               int[] cacheArrayDimensions,
                               int projectionAxis,
                               int max2Axis,
                               boolean threaded)

massage

protected static void massage(float[] vector)

This method finds the smallest magnitude non-zero coordinate and divides the other coordinates by this value.

createThreadedCacheDS

public static DataSource createThreadedCacheDS(DataSource source,
                               ISIterator iter,
                               long memAvailable)

createThreadedCacheDS

public static DataSource createThreadedCacheDS(DataSource source,
                               ISBoundsIterator iter,
                               long memAvailable)

createThreadedSliceCacheDS

public static DataSource createThreadedSliceCacheDS(DataSource source,
                                    ISIterator iter,
                                    long memAvailable)

createThreadedSliceCacheDS

public static DataSource createThreadedSliceCacheDS(DataSource source,
                                    ISBounds iterationSpace,
                                    int sliceAxis,
                                    long memAvailable)

createThreadedSliceCacheDS

public static DataSource createThreadedSliceCacheDS(DataSource source,
                                    ISBoundsIterator iter,
                                    long memAvailable)

computeBestBlockShape

public static IntegerIndexSpaceID computeBestBlockShape(AxisOrdering iteratorOrdering,
                                        int[] axisLengths,
                                        int elementByteSize,
                                        long memAvailable)

main

public static void main(java.lang.String[] args)