Newsgroups: comp.parallel.pvm
From: systran1@dialup.oar.net (Mary Johnson)
Subject: NAS Kernel Verification
Summary: Multiple problem sizes would be helpful
Organization: OARnet
Date: 16 Feb 1995 16:46:06 GMT
Message-ID: <3hvvge$5oi@ns.oar.net>

I am in the process of getting the 5 PVM NAS Kernels working on my PVM network.  Not only do I want them to complete execution, but I want to prove that their results are correct. There are published verification results for each kernel, however, there are only one or two results (usually for large problem sizes that take a long time to run, especially if you only have a 3-node network, like mine.)  I've been having trouble running the large problem sizes.  Either I run out of memory or it never returns.

What I would like to see added to the published documentation are verification results for smaller problem sizes -- just so we can get a quick, warm fuzzy that our code is running correctly.  I'll always be running a smaller problem size, so my I hate having to spend so much time tracking down why the larger sizes won't run on my configuration.

In the short term, could anyone please send me some verification numbers (for smaller problems sets that run under 10 minutes) for the following PVM NAS kernels: Multi-Grid (MG) and Fast-Fourier Transform (FFT).  I've been able to verify the others.

Thanks
Mary Johnson
mjohnson@systran.com

