From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <3e1162e60710170929k456c3468n95ed0bcfa88238@mail.gmail.com> Date: Wed, 17 Oct 2007 09:29:55 -0700 From: "David Leimbach" To: "Fans of the OS Plan 9 from Bell Labs" <9fans@cse.psu.edu> Subject: Re: [9fans] parallel/distributed computation In-Reply-To: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_48892_27420204.1192638595621" References: <20071017144235.GE5034@gluon> <13426df10710170913wd5f4c3fiad26e5e4ba7e4c70@mail.gmail.com> Topicbox-Message-UUID: d37ee5b0-ead2-11e9-9d60-3106f5b1d025 ------=_Part_48892_27420204.1192638595621 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline On 10/17/07, Eric Van Hensbergen wrote: > > On 10/17/07, ron minnich wrote: > > > > You have two choices. > > > > 1) write it from scratch > > 2) port gcc and then all of gnubin -- and then all of the various > > parallel computing software > > > > Ron fails to mention that we are also looking at flushing out support > for large-scale HPC applications under Plan 9 -- but that work is just > getting underway and Fortran isn't one of our initial targets > (although some level of MPI API support most likely is). > > -eric > Who's "we"? I've experience implementing MPI against Portals, TCP and funky shared memory issues on Mac OS X. Of course for me to do so for Plan 9 would probably violate several employment non-competes and other IP contracts I have. Doesn't mean I'm not interested in seeing it happen though. Plan 9 might be really ideal for HPC, especially with myrinet drivers available and it's absolutely no-nonsense VM subsystem. (yeah you can exhaust RAM, but all that paging/swapping was never good for HPC anyway now was it? I'm thinking CPlant... Ron (Minnich) might laugh at me... :-) Dave ------=_Part_48892_27420204.1192638595621 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline

On 10/17/07, Eric Van Hensbergen <ericvh@gmail.com> wrote:
On 10/17/07, ron minnich <rminnich@gmail.com> wrote:
>
> You have two choices.
>
> 1) write it from scratch
> 2) port gcc and then all of gnubin -- and then all of the various
> parallel computing software
>

Ron fails to mention that we are also looking at flushing out support
for large-scale HPC applications under Plan 9 -- but that work is just
getting underway and Fortran isn't one of our initial targets
(although some level of MPI API support most likely is).

            -eric

Who's "we"?  I've experience implementing MPI against Portals, TCP and funky shared memory issues on Mac OS X.

Of course for me to do so for Plan 9 would probably violate several employment non-competes and other IP contracts I have.

Doesn't mean I'm not interested in seeing it happen though.  Plan 9 might be really ideal for HPC, especially with myrinet drivers available and it's absolutely no-nonsense VM subsystem.  (yeah you can exhaust RAM, but all that paging/swapping was never good for HPC anyway now was it?  I'm thinking CPlant...  Ron (Minnich) might laugh at me... :-)

Dave
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