------- Forwarded Message
Hello All,
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) have designed and implemented a new
parallel interface for writing and reading netCDF data, tailored for use on
high performance platforms with parallel I/O. It is based on netCDF-3 file
format. The parallel 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.
Documentation and code for Parallel-NetCDF version 0.8.5 is now available for
testing:
http://www-unix.mcs.anl.gov/parallel-netcdf/
Although a few interfaces are not implemented yet, the current implementation
is complete enough to provide significant I/O performance improvements on
parallel platforms, as described in the technical report:
ftp://info.mcs.anl.gov/pub/tech_reports/reports/P1048.pdf
Users are invited to test Parallel-NetCDF in their applications.
Features not yet implemented include:
- uchar, schar, or long data types
- get/put_varm data access functions
- MPI derived datatype for flexible data access interface
- NC_FILL (no plan to implement)
Thanks for your interest.
Jianwei
------- End of Forwarded Message
>From owner-netcdfgroup@xxxxxxxxxxxxxxxx 24 2003 Jul -0600 14:13:20
Message-ID: <u3cgv3cpr.fsf@xxxxxxxxxxxxxxxxxxxxx>
Date: 24 Jul 2003 14:13:20 -0600
From: Ed <ed@xxxxxxxxxxxxxxxxxxxxx>
To: netcdfgroup@xxxxxxxxxxxxxxxx
Subject: VB.NET use of netCDF library...
Received: (from majordo@localhost)
by unidata.ucar.edu (UCAR/Unidata) id h6OK7LRB005835
for netcdfgroup-out; Thu, 24 Jul 2003 14:07:21 -0600 (MDT)
Organization: UCAR/Unidata
Keywords: 200307242007.h6OK7ILd005668
Lines: 17
User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.2
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Sender: owner-netcdfgroup@xxxxxxxxxxxxxxxx
Precedence: bulk
Reply-To: Ed <ed@xxxxxxxxxxxxxxxxxxxxx>
Howdy all!
I have a set of VB.NET declares which allow you to call the netCDF
windows dll from VB.NET.
I've also wrapped this in a Dataset object, which contains Var and
Attribute object, in the expected netCDF way.
At the moment I only read netCDF files. I can add writing if there is
any interest.
We'll have this up on the web server at some point soon. In the
meantime, anyone who's interested can email me directly and I'll mail
the source to you.
Ed Hartnett
