at.dms.kjc.spacetime
Class Util

java.lang.Object
  at.dms.kjc.spacetime.Util

public class Util
extends Object

A class with useful functions that span classes.

Field Summary

static String	CGNIFPVAR
static String	CGNIINTVAR
static String	CGNOFPVAR
static String	CGNOINTVAR
static String	CSTIFPVAR
static String	CSTIINTVAR
static String	CSTOFPVAR
static String	CSTOINTVAR

Constructor Summary

Util()

Method Summary

static void	add(LinkedList<Integer> list, int[] addme) Add the elements of addme to list.
static void	add(LinkedList list, Object[] addme) Add the elements of addme to list.
static void	addAll(HashSet set, Collection c)
static int	cacheLineDiv(int i)
static boolean	doesSliceUseTile(Slice slice, ComputeNode tile, Layout layout)
static CType	getBaseType(CType type)
static String	getFileHandle(PredefinedContent content)
static String	getFileVar(PredefinedContent content)
static String	getOutputsVar(FileOutputContent out)
static int	getTypeSize(CType type) For type return the number of words that it occupies.
static int	initBufferSize(InterSliceEdge edge)
static int	magicBufferSize(InterSliceEdge edge)
static int[]	makeInt(JExpression[] dims)
static String[]	makeString(JExpression[] dims)
static double	mean(int[] array)
static int	median(int[] array)
static String	networkReceive(boolean dynamic, CType tapeType)
static String	networkSendPrefix(boolean dynamic, CType tapeType)
static String	networkSendSuffix(boolean dynamic)
static boolean	onlyFileInput(InputSliceNode node) Determine if this input slice node reads from a single source and the source is a file device.
static boolean	onlyWritingToAFile(OutputSliceNode outNode)
static int	outputsPerSteady(SIRStream str, HashMap exeCounts) Calculate the number of items the file writers write to files in the schedule exeCounts.
static void	printExecutionCount(HashMap map) Print to screen the mapping of multiplicities
static void	sendConstFromTileToSwitch(RawTile tile, int c, boolean init, boolean primePump, SwitchReg reg)
static <T> boolean	setCompare(LinkedList<T> list, T[] array) Return true if the sets contructed from list and array are equal.
static SliceNode[]	sliceNodeArray(Slice[] traces)
static LinkedList<FilterSliceNode>	sortedFilterSlicesTime(Partitioner partitioner) Return a sorted list of filter trace nodes for time only that does not include io traces.
static int	steadyBufferSize(InterSliceEdge edge)
static int	sum(int[] array)

Methods inherited from class java.lang.Object

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

Field Detail

CSTOINTVAR

public static String CSTOINTVAR

CSTOFPVAR

public static String CSTOFPVAR

CSTIFPVAR

public static String CSTIFPVAR

CSTIINTVAR

public static String CSTIINTVAR

CGNOINTVAR

public static String CGNOINTVAR

CGNOFPVAR

public static String CGNOFPVAR

CGNIFPVAR

public static String CGNIFPVAR

CGNIINTVAR

public static String CGNIINTVAR

Constructor Detail

Util

public Util()

Method Detail

printExecutionCount

public static void printExecutionCount(HashMap map)

Print to screen the mapping of multiplicities

Parameters:

map - The HashMap.

getTypeSize

public static int getTypeSize(CType type)

For type return the number of words that it occupies.

Parameters:

type - The type.

Returns:

The number of words occupied by type.

makeInt

public static int[] makeInt(JExpression[] dims)

getBaseType

public static CType getBaseType(CType type)

makeString

public static String[] makeString(JExpression[] dims)

setCompare

public static <T> boolean setCompare(LinkedList<T> list,
                                     T[] array)

Return true if the sets contructed from list and array are equal.

Type Parameters:

T - Type of list elements and array elements.

Parameters:

list - The list

array - The array

Returns:

true if the sets contructed from list and array are equal.

add

public static void add(LinkedList<Integer> list,
                       int[] addme)

Add the elements of addme to list.

Parameters:

list - The list.

addme - Add elements to list.

add

public static void add(LinkedList list,
                       Object[] addme)

Add the elements of addme to list.

Parameters:

list - The list.

addme - Add elements to list.

networkReceive

public static String networkReceive(boolean dynamic,
                                    CType tapeType)

Parameters:

dynamic -

tapeType -

Returns:

The code to receive a item from either the dynamic network or the static network based on the type.

doesSliceUseTile

public static boolean doesSliceUseTile(Slice slice,
                                       ComputeNode tile,
                                       Layout layout)

Parameters:

slice -

tile -

Returns:

True if

trace

has a filter that is mapped to

tile

.

median

public static int median(int[] array)

Parameters:

array -

Returns:

The median element of

array

.

mean

public static double mean(int[] array)

Parameters:

array -

Returns:

The mean of the elements of

array

.

sum

public static int sum(int[] array)

Parameters:

array -

Returns:

the sum of the elements of array.

networkSendPrefix

public static String networkSendPrefix(boolean dynamic,
                                       CType tapeType)

Parameters:

dynamic -

tapeType -

Returns:

The prefix for sending an item over either the dynamic network or the static network of the given type. Should be used before the value to send over the network is generated.

networkSendSuffix

public static String networkSendSuffix(boolean dynamic)

Parameters:

dynamic -

Returns:

The suffix to append after the value is generated for a network send.

steadyBufferSize

public static int steadyBufferSize(InterSliceEdge edge)

initBufferSize

public static int initBufferSize(InterSliceEdge edge)

magicBufferSize

public static int magicBufferSize(InterSliceEdge edge)

getFileVar

public static String getFileVar(PredefinedContent content)

getFileHandle

public static String getFileHandle(PredefinedContent content)

getOutputsVar

public static String getOutputsVar(FileOutputContent out)

cacheLineDiv

public static int cacheLineDiv(int i)

addAll

public static void addAll(HashSet set,
                          Collection c)

sliceNodeArray

public static SliceNode[] sliceNodeArray(Slice[] traces)

Parameters:

traces -

Returns:

An array of all the TraceNode in the

traces

array dictated by the order that the traces appear in

traces

.

sendConstFromTileToSwitch

public static void sendConstFromTileToSwitch(RawTile tile,
                                             int c,
                                             boolean init,
                                             boolean primePump,
                                             SwitchReg reg)

sortedFilterSlicesTime

public static LinkedList<FilterSliceNode> sortedFilterSlicesTime(Partitioner partitioner)

Return a sorted list of filter trace nodes for time only that does not include io traces.

Parameters:

partitioner -

Returns:

a sorted list of filter trace nodes for time only that does not include io traces.

outputsPerSteady

public static int outputsPerSteady(SIRStream str,
                                   HashMap exeCounts)

Calculate the number of items the file writers write to files in the schedule exeCounts.

Parameters:

str - The toplevel container.

exeCounts - The schedule.

Returns:

the number of items the file writers write to files in the schedule exeCounts.

onlyFileInput

public static boolean onlyFileInput(InputSliceNode node)

Determine if this input slice node reads from a single source and the source is a file device.

Parameters:

node - The InputSliceNode to check

Returns:

true if reads file device as its single source

onlyWritingToAFile

public static boolean onlyWritingToAFile(OutputSliceNode outNode)

Parameters:

outNode - OutputSliceNode

Returns:

True if this output slice node has only one output and that output is directly writing to a file reader with no non-redundant buffers in between.