Newsgroups: comp.parallel.pvm
From: rff@inf.rl.ac.uk (Ronald Fowler)
Subject: SUNMP bug in pvm3.3.8?
Organization: Rutherford Appleton Laboratory
Date: 14 Aug 1995 13:30:38 GMT
Message-ID: <40nj5u$2f6k@unixfe.rl.ac.uk>

Having gotten 3.3.8 to try and fix problems with SUNMP hanging,
I now find the communication between SUNMP nodes works ok.
However, for sending messages to tasks on other hosts (SGI5 and SUN4)
some data is lost. It seems that for any message over about 1000
bytes, a few values at the end of the message are lost, and an
end of buffer warning is generated from pvm_unpack. This is for a
simple ping-pong benchmark in Fortran (pvmfsend/pvmfrecv).
All is ok if I compile as SUN4SOL2, though this kills the
SUNMP->SUNMP speed.

Is this a bug or have I forgotten to set up something on the SUNMP?

Ron Fowler




