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PPAT README FILE
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VERSION 1.0  :  October 5, 2001

PPAT is a tool for computing the pseudospectra of large sparse matrices.
It is freely-available software, and is copyrighted.

The distribution tar file contains the C source for PPAT and the
graphical user interface.

PPAT requires the following libraries
-CBLAS    (http://www.netlib.org/blas)
-CLAPACK  (http://www.netlib.org/clapack)
-ARPACK   (http://www.netlib.org/arpack)
-f2c      (http://www.netlib.org/f2c)
-MPICH
-GTK+1.2  (http://www.gtk.org)

The PPAT software is located in $HOMEDIR/PPAT while the interface
is located in $HOMEDIR/Interface.

The input matrix is read from the file $HOMEDIR/PPAT/matrix.mtx. Therefore
one should create a symbolic link named 'matrix.mtx' to the corresponding
matrix.

To compile PPAT, do a make all in $HOMEDIR

To run PPAT, on should run the parallel application in $HOMEDIR/PPAT

	mpirun -np <proc> -machinefile <processors> main

and the run the interface program in $HOMEDIR/Interface
	
	./FrontEnd