                     xregion -- GA visualization tool


xregion displays transitional access patterns for a two-dimensional
array.  Both sampling time for the animation and slowdown factor can be
specified to animate long- and short- lasting events. At the end of
animation, a cumulative time lost due to contention in access to
individual array elements is displayed. The color coding (from white to
navy) reflect access contention level for the animation, and the access
contention integral for the final display.

The usage:
~~~~~~~~~ 
xregion <filename> [Xtoolkit options]

where:

filename         - name of the input file (data processed by 'adjust' program)

The file must contain:

<number of rows> <number of columns> <num_events>
<N - number of row partitions> <M - number of column partitions> 
<row_part_1>
....
<row_part_N>
<column_part_1>
....
<column_part_M>
<trace DATA generated by program adjust>

num_events       - the number of events to be read and processed from filename
	           (might be specified larger than teh actual number records)


The program was tested on the SUN and SGI platforms only !
It is a 16-bit display version. 


Example:
~~~~~~~
xregion adjust.ed
