			  INSTALLATION NOTES

			InterComm Version 1.0

InterComm depends on PVM for communication, so the first step is 
to insure that you have a working and properly configured installation
of PVM available.  In particular, InterComm will need the environment 
variables PVM_ROOT and PVM_ARCH set during configuration.

InterComm uses the GNU Autotools suite for building and installation.
Generally, this involves the sequence of commands:

   ./configure
   make
   make install

The 'configure' command takes a number of options, use of the '--help'
flag will provide a full list of those available.  Options that are
specific to InterComm are:

   --with-chaos=DIR
	
	This causes the Chaos extensions to be built.  DIR specifies 
	where the Chaos headers and libraries can be found.

   --with-mbp=DIR
	
	This causes the MultiBlockParti extensions to be built.  DIR
	specifies where the MultiBlockParti headers and libraries
	can be found.

   --enable-f77

	This causes the Fortran 77 interface to	be built (default).

   --enable-f90

	This causes the Fortran 90 interface to be built.

   --with-ppp=DIR

	This causes the C++/P++ interface to be built.  DIR specifies
	where the P++ headers and libraries can be found.

	NOTE: The P++ source MUST be modified to expose the underlying
	PARTI descriptor to InterComm.  This is done by making the 
	pPARTI_Descriptor member of the PADRE_Descriptor class public. 
	
	See line 445 in A++P++-0.7.9d/P++/PADRE/src/PADRE_Descriptor.h.

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Department of Computer Science, University of Maryland, 
A.V. Williams Building, College Park, MD 20742.
