DIFFERENCES and ADDITIONS BETWEEN V3.3 BETA and PREVIOUS VERSIONS

Version 3.3 BETA is not a major revision. It adds some optimizations for MPI execution, fixes some minor bugs which have been reported to us, and adds some additional features.  Specifically we have added some optimizations to the flux and edge averaging routines which decrease the memory used by PARAMESH.

• Parallel, portable checkpoining using HDF5.  You can now take advantage of a parallel filesystem on your system (if you have one) by downloading and installing HDF5 and making sure that it is configured for parallel I/O (using MPI-IO).  You do not need to have the Fortran interface for HDF5 since our code which makes the calles to HDF5 is written in C.  You also need to run a script supplied by us to install this new feature into your copy of PARAMESH3.3 BETA.  Using this feature is discussed in the User's Guide here under the heading 'PARALLEL CHECKPOINTING USING HDF5'.
  

• We also now provide routines for writing out files which can be read by the graphics package ChomboVis.  Click here to see the website for downloading ChomboVis and instructions for installing and running it.

• As you have noticed, our software is now downloaded form sourceforge.  We are now managing the further development of PARAMESH using the features of sourceforge.  The reason we have done this is mainly to encourage other people involved in development and testing PARAMESH using an open-source model.  If you would like to be involved in developing PARAMESH, to serve as a tester of the software, or to help write documentation, please contact Kevin Olson or Peter MacNeice so that we can discuss the details.
  

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