[gmx-users] MPI flavours
and.carotti at farmchim.uniba.it
Wed Feb 1 15:57:10 CET 2006
I've found some usefull settings that gained a lot my performances using
mpich 1.2.5 on a gigabit ethernet dual xeon cluster.
After compiling the mpich using also this configure flags:
I've set the this variable in my .tcshrc using 'setenv P4_SOCKBUFSIZE
and I've added these two lines by root in /etc/sysctl.conf
Now the latency is hardly reduced....so I'm happy. ;-)
----- Original Message -----
From: "Alan Dodd" <anoddlad at yahoo.com>
To: "Discussion list for GROMACS users" <gmx-users at gromacs.org>
Sent: Wednesday, February 01, 2006 2:48 PM
Subject: Re: [gmx-users] MPI flavours
> Our cluster at Bristol uses mpich 1.2.5. Gromacs
> works OK with it, runs are unstable (connections have
> a habit of dropping off the network temporarily every
> week or two), processes cannot be properly
> backgrounded and scaling works poorly with more than a
> handful of nodes, but it does work. I've no idea how
> easy it was to compile.
> --- Mark Abraham <Mark.Abraham at anu.edu.au> wrote:
>> Andrea Carotti wrote:
>> > Hi all,
>> > a simple and direct question: has anyone tried
>> other flavours of mpi
>> > such as mpich 2 within gromacs?
>> > Does it compile?what about the performances?
>> People have tried and have reported problems on this
>> list. LAM is
>> recommended. Check out the installation guide, FAQ
>> and mailing list
>> archives, all on the gromacs website.
>> gmx-users mailing list gmx-users at gromacs.org
>> Please don't post (un)subscribe requests to the
>> list. Use the
>> www interface or send it to
>> gmx-users-request at gromacs.org.
>> Can't post? Read
> Do You Yahoo!?
> Tired of spam? Yahoo! Mail has the best spam protection around
> gmx-users mailing list gmx-users at gromacs.org
> Please don't post (un)subscribe requests to the list. Use the
> www interface or send it to gmx-users-request at gromacs.org.
> Can't post? Read http://www.gromacs.org/mailing_lists/users.php
More information about the gromacs.org_gmx-users