mapss.dif.csdf.sdf
Class SDFUtilities

java.lang.Object
  mapss.dif.csdf.sdf.SDFUtilities

public class SDFUtilities
extends java.lang.Object

Utilities for synchronous dataflow (SDF) graphs.

Version:

$Id: SDFUtilities.java 362 2007-02-25 21:08:57Z plishker $

Author:

Shuvra S. Bhattacharyya. Portions are adapted from a file by Jeff Tsay and Christopher Hylands.

See Also:

SDFGraph

Method Summary

static java.lang.String	timeAndMemory(long startTime) Return a diagnostic string with the elapsed time since a reference start time, and the amount of memory used.
static java.lang.String	toString(ptolemy.actor.sched.ScheduleElement element) Output a string representation of a looped schedule.

Methods inherited from class java.lang.Object

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

Method Detail

timeAndMemory

public static java.lang.String timeAndMemory(long startTime)

Return a diagnostic string with the elapsed time since a reference start time, and the amount of memory used. This method is useful for evaluating the time and memory efficiency of synthesis algorithms.

Parameters:

startTime - the reference start time.

Returns:

the diagnostic string.

toString

public static java.lang.String toString(ptolemy.actor.sched.ScheduleElement element)

Output a string representation of a looped schedule. In this string representation, each schedule loop is represented by a string of the form (n S₁ S₂ ... S_m), where n is the iteration count of the loop, and each S_i is the string representation (as determined recursively by this method) of the ith iterand.

Parameters:

element - the looped schedule, which can be any SDF ScheduleElement.

Returns:

the string representation of the schedule.