Newsgroups: comp.parallel.mpi
From: Uwe Muessel <um@hlrz.kfa-juelich.de>
Subject: Re: MPICH for Linux/ch_shmem anyone?
Organization: Forschungszentrum Juelich GmbH (KFA) Germany
Date: 20 Feb 1998 18:09:25 +0100
Mime-Version: 1.0 (generated by tm-edit 7.100)
Message-ID: <xb2hg5urynu.fsf@hlrz.kfa-juelich.de>

Hi,

Thorsten Ohl <ohl@*RemoveTheStars*hep.tu-darmstadt.de> writes:

> Did anybody succeed in building a working ch_shmem device for MPICH
> under Linux?  It compiles for me, but the initial mmap(2) call fails
> with EINVAL.   [I'm still running Linux 2.1.35]

You can build the ch_shmem device on Linux usign ipc shm. By default
the mmap method is prefered. After running configure you have to
undefine HAVE_MMAP in lib/LINUX/ch_shmem/mpichconf.h. This little hack
works at least for me.

   uwe