Newsgroups: comp.parallel.pvm
From: vu2gmc@PROBLEM_WITH_INEWS_GATEWAY_FILE (Sitaram Ramaswamy)
Subject: PVM3.2.6 on HP9x/735
Summary: problem with pvmfsend() on HP9x/735 using pvm3.2.6
Keywords: pvm,pvmd3,pvm_send,pvmfsend,HP9000/735
Organization: University of California, Santa Barbara
Date: 9 Jun 1994 23:22:52 GMT
Message-ID: <2t888c$83b@hub.ucsb.edu>


I am on an HP9000/735  running HP-UX 9.01.
I obtained  pvm version 3.2.6  and it built without any problems.

I ran the hello code and a fortran variant of it and the master
slave code from the examples directory. Both of them gave no trouble.

Then I ran a PVM-fortran code that I knew ran successfully on a sparcLX
farm on the HP. The code used to bomb at times 'cause there was
a problem with the pvm_send() routine. It at times complained about
about bad parameter....improper task id (tids)  in pvmfsend.

It looked like the pvmd3 had problems allocating tids. I wrote up
as sample program (based on the token passing example) and it
sometimes worked and sometimes complained about bad parameter in pmvfsend()
Approx 1/3rd of the time it worked fine.

Once again I reiterate that the code ran fine on the sparcLX-farm and
the problem was only in the HP735-cluster. Running with a just a single
host and multiple processes did not help either.

I would like to know if anyone has had similar experiences and/or does it
indicate that I could be doing something improper ( though I  wouldn't
expect the sun pvmd to be more robust than the HP-pvmd :-) ). Any
insight, however small, will be appreciated.

-Thanks a lot
-Ram
(vu2gmc@navier.ucsb.edu)



