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Re: 20040304: building netCDF library using Intel "ifort" 8.0 compiler (fwd)

>To: "Steve Emmerson" <address@hidden>
>From: "Hernan G. Arango" <address@hidden>
>Subject: RE: 20040304: building netCDF library using Intel "ifort" 8.0 
>compiler 
>Organization: Rutgers University/Institute of Marine and Coastal Sciences
>Keywords: 200403031657.i23GvurV004025

Hi Hernan,

> I am looking forward when you guys release the new version
> of NetCDF with parallel capabilities.  What is the status
> of that library?

There is a Parallel netCDF library you can use now:

  http://www-unix.mcs.anl.gov/parallel-netcdf/

It was designed and implemented by a group of researchers at
Northwestern University and Argonne National Laboratory (Jianwei Li,
Wei-keng Liao, Alok Choudhary, Robert Ross, Rajeev Thakur, William
Gropp, and Rob Latham), and it's tailored for use on high performance
platforms with parallel I/O. The implementation builds on the MPI-IO
interface, providing portability to most platforms in use and allowing
users to leverage the many optimizations built into MPI-IO
implementations.  Testing so far has been on Linux platforms with ROMIO
and IBM SP machines using IBM's MPI.

See the SC2003 paper about Parallel-netCDF for performance results.
The developers maintain a support email list and are very responsive
to questions and problem reports.

Independently, we are working on netCDF-4, layered on HDF5, which will
also support parallel I/O using MPI-IO.  It is not scheduled for
release until mid 2005.  We plan to try to use the same API as the
Argonne/Northwestern group developed for parallel netCDF, which is
very close to the netCDF API you already use.

--Russ

_____________________________________________________________________

Russ Rew                                         UCAR Unidata Program
address@hidden          http://www.unidata.ucar.edu/staff/russ