1) Do I really need a cluster scheduler installed on the cluster? Should I
use scheduler?
even for a dedicated cluster, there is some appeal of a queueing system,
since it lets you run concurrent jobs more easily, and to queue a set of
jobs which wait until resources are available.
2) Is the
provide some thread-level parallelism on a cluster where you primarily
use MPI to achieve your parallel execution.*
either threads for low-investment newbie parallelism
or MPI for serious scalability.
Have you used compiler auto-parallel features mixed with MPI with
success on your clusters?
The SPEC HPG (High Performance Group) is having discussions about using
a hybrid of MPI and thread-level parallelism on the SPEC MPI2007
benchmark suite. We have a separate OpenMP suite (SPEC OMP2001), so we
chose not to allow the source-code complications of hybrid MPI/OpenMP
parallelism in this
By the way, have any of those instances where another program detects
memory problems, but memtest86+ doesn't, been on machines where each
CPU has its own memory which is not directly available to the other
cpu(s)?
It is well known that memtest86+, at least the current version,
only runs on one
Hello Amjad,
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of amjad ali
Sent: November 29, 2007 8:14 AM
To: beowulf@beowulf.org
Subject: [Beowulf] Why need of a scheduler??
Hello all,
I want to develop and run my parallel code (MPI based) on a Beowulf c
Hi,
Am 29.11.2007 um 14:14 schrieb amjad ali:
I want to develop and run my parallel code (MPI based) on a Beowulf
cluster. I have no problem as such that many user might log on to
the cluster simultaneously. Suppose that I am free to use cluster
dedicatedly for my single parallel applicati
Ali,
You might want to consider looking into Tyan's VX50 systems, that
system is able to handle dual core Opterons (8*2=16 cores, it does not
support the 9000 series quad core though) and it can go up to 128Gig of
RAM. Some advantages are:
Each Opteron chip (datasheets:
http://www.amd.co
Hello all,
I want to develop and run my parallel code (MPI based) on a Beowulf cluster.
I have no problem as such that many user might log on to the cluster
simultaneously. Suppose that I am free to use cluster dedicatedly for my
single parallel application.
1) Do I really need a cluster schedule
On Wed, 2007-11-28 at 10:21 -0600, Nathan Moore wrote:
> I've not tried their respective MPI libraries, but as a general rule,
> the people who manufacture the chips have the best idea of how to
> optimize a given library. (There are obvious counter-examples,
> gotoBLAS and fftw for example).
>
