On 05/02/2011 11:30 AM, Jack Bryan wrote:
Thanks for your reply.
MPI is for academic purpose. How about business applications ?
There are quite a bit of non-academic MPI applications. For example
there are quite a bit of simulation codes from different vendors that
support MPI (Nastran is one common one).
What kinds of parallel/distributed computing environment do the
financial institutions
use for their high frequency trading ?
I personally know of a private trading shop that uses MPI, but that's as
much as I can say. I am not sure how common it is, however the direct
communications to the trading servers is still via sockets or something
similar as opposed to MPI.
--td
Any help is really appreciated.
Thanks,
------------------------------------------------------------------------
Date: Mon, 2 May 2011 08:34:33 -0400
From: terry.don...@oracle.com
To: us...@open-mpi.org
Subject: Re: [OMPI users] OMPI vs. network socket communcation
On 04/30/2011 08:52 PM, Jack Bryan wrote:
Hi, All:
What is the relationship between MPI communication and socket
communication ?
MPI may use socket communications to do communications between two
processes. Aside from that they are used for different purposes.
Is the network socket programming better than MPI ?
Depends on what you are trying to do. If you are writing a parallel
program that may run in multiple environments with different types of
performing protocols available for its use then MPI is probably
better. If you are looking to do simple client/server type
programming then socket program might have an advantage.
I am a newbie of network socket programming.
I do not know which one is better for parallel/distributed
computing ?
IMO MPI.
I know that network socket is unix-based file communication
between server and client.
If they can also be used for parallel computing, how MPI can work
better than them ?
There is a lot of stuff that MPI does behind the curtain to make a
parallel applications life a lot easier. As far as performance MPI
will not perform better than sockets if it is using sockets as the
underlying model. However, the performance difference should be
negligible which makes all the other stuff MPI does for you a big win.
I know MPI is for homogeneous cluster system and network socket is
based on internet TCP/IP.
What do you mean by homogeneous cluster? There are some MPIs that can
work among different platforms and even different OSes (though some
initial setup may be necessary).
Hope this helps,
--
Oracle
Terry D. Dontje | Principal Software Engineer
Developer Tools Engineering | +1.781.442.2631
Oracle *- Performance Technologies*
95 Network Drive, Burlington, MA 01803
Email terry.don...@oracle.com <mailto:terry.don...@oracle.com>
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Oracle
Terry D. Dontje | Principal Software Engineer
Developer Tools Engineering | +1.781.442.2631
Oracle *- Performance Technologies*
95 Network Drive, Burlington, MA 01803
Email terry.don...@oracle.com <mailto:terry.don...@oracle.com>
