Dear MPICH gurus,
I forward you this message since I think it is relevant for you.
As you maybe know SGI plan to release it's implementation of the
Scheduled Transfer Protocol (STP) under GLP as part of it's
Open Source Strategy.
see: http://lwn.net/2000/0217/a/stp.html and http://oss.sgi.com/projects
This protocol was developed for high speed networks like 800 MByte/s
HPPI or Gigabit Ethernet. It was designed for both low latency user
space communications and high bandwidth with minimal host CPU usage.
I think VIA can also be implemented over STP.
Since the price of Gigabit Ethernet devices can be expected to drop
and since hardware acceleration for STP can also be expected, STP
and a proper MPI library implementation could bring high performance
to commodity based Beowulf parallel systems by replacing the usual
TCP/IP stack.
I hope this sounds interesting for you...
Martin
===========================================================================
Martin Audet Industrial Materials Institute
E-mail: martin.audet@xxxxxx National Research Council
Tel : (450) 641-5034 75, de Mortagne, Boucherville, (Que)
(450) 641-5364 (lab.) J4B 6Y4
Fax : (450) 641-5106 Canada
-----Original Message-----
From: Aman Singla <aman@xxxxxxxxxxxxxxxxxxxx>
To: Audet, Martin <martin.audet@xxxxxx>
Cc: stp@xxxxxxxxxxx
Sent: 3/14/00 2:06 PM
Subject: Re: MPI implementation over STP ?
Sorry for the delay in answering your question Martin.
We're very aware of the fact that running MPI on STP
makes a lot of sense. The only MPI implementation on
STP that I'm aware of is within SGI - on Irix platforms.
I'm still a couple of months away from getting the
'feature set' of STP which is required for MPI working
on Linux and GbE. Once that is done, we're very interested
in working to get MPI on STP - in form of efforts within
SGI, and working with anyone interested on the outside also -
e.g. if somebody were to explain to me the requirements
MPICH would have from STP, we could work towards delivering
them.
Hope this answers your question.
thanks,
:a
>
> Hi,
>
> I saw your article in Linux Weekly News about STP on Linux
> (e.g.: http://lwn.net/2000/0217/a/stp.html).
>
> Can you tell me if you know any project of using MPI over
> STP ?
>
> Since STP allows high bandwidth, low latency user space
> communication and since it support Gigabit Ethernet
> (and we can expect a price drop for GbE devices), it
> would opens the door to a new generation of high
> performance low cost Beowulf parallel systems.
>
> Martin
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