From: Jonathan Eckstein <jeckstei@rutcor.rutgers.edu>
Newsgroups: comp.parallel.mpi
Subject: Log file frustration in MPICH
Date: Wed, 09 Sep 1998 17:29:13 -0400
Organization: RUTCOR
Sender: jeckstei@rutcor.rutgers.edu
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Cc: jeckstei


Perhaps somebody on this newsgroup can offer some assistance --
I am having a good deal of frustration with the log file visualization
tools for MPICH.

Following the examples/cpilog.c, I modified my application to produce
a .alog file.  That was no sweat.

I can view this file with "upshot", but it reads the file very slowly
(it's about 50K), and if I try to zoom close enough to see what is
happening, upshot goes into some sort of strange loop where it keeps
making its window a tiny bit wider with each iteration, and then croaks.

I then downloaded MPICH 1.1.1 (I was using 1.1.0), and built that.
However, it won't build "nupshot" because the tk on my system is
too recent a version (4.1, and nupshot wants 3.something).

After much fiddling, I got "Jumpshot" to run, but it won't read the
log files.  I think it's expecting "clog" format, while I have an
"alog" file.  There are "clog" routines in MPE, but there is there an
example of their use?  Even if I could write a clog, I'm not sure of
success because Jumpshot doesn't even seem to read the clog files it
comes with.  Even for those files, It keeps saying "unknown record
type 384763863, perhaps the file is little endian", or something
roughly like that.

I would really like to somehow visualize these log file and see what
is happening with my app.  Any suggestions?

I am using Solaris 2.5.1 on a SPARC machine, and JDK 1.1.3.


-- Jonathan


-- 

Associate Professor Jonathan Eckstein
MSIS Department, Faculty of Management, Rutgers University

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