Newsgroups: comp.parallel.mpi
From: yinyee@nsrc.nus.sg (Yuan Zhenxia)
Subject: Re: MPI & SunOS 5.3 threads
Organization: NSRC
Date: 20 Jun 1995 02:49:32 GMT
Message-ID: <3s5cvs$5ug@nuscc.nus.sg>

Nils Nieuwejaar (nils@cs.dartmouth.edu) wrote:

: Threads (on AIX 3.2.5).  When using the ch_p4 device (or just p4
: without MPI for that matter), any program that runs on 4 or more nodes
: dies loudly (an endless stream of thread deadlock messages) as soon as
: MPI_Init() is called.  When using the ch_eui device (on top of IBM's
: MPL), it appears to hang silently (possibly deadlocked as with ch_p4,
: but without the error messages?).

Not so much to do with thread-safety here but I have a similar experience as
above. I've installed MPICH (1.0.9) using both ch_p4 and ch_eui as devices
for a sp2. Both installations passed the tests included in the distribution
but my FORTRAN program (using 4 nodes) could only run when linked with the 
libraries of the ch_p4 installation. When linked with those of the ch_eui 
installation, the same program hung for a short while before I was returned 
the prompt. No error messages were generated, and yes, relevant parts of the 
Makefile were changed.

--
Yin Yee
email: yinyee@onyx.nsrc.nus.sg

