John Vert wrote:
Eric,
I don’t have a CX1 (yet!) but I expect the development experience will
be the usual Windows HPC model. Design/code/test parallel code in
Visual Studio then do test runs on the cluster. With Visual C++ and
Windows HPC, you have MPI, OpenMP, threading, and an MPI debugger. You
can debug and test your code either locally or on a cluster from the
same development environment.
If you are interested, Pluralsight has a very detailed tutorial here:
http://www.pluralsight.com/community/blogs/drjoe/archive/2008/06/19/51178.aspx
It is definitely our goal to make it simple to develop an MPI
application on your desktop and then easily run it, tune it, debug it
on a cluster of any size.
John Vert
Windows HPC
Yes but...that brings out my point, this is implying that _everyone_
would need HPC server. And seeing how much that costs for the CX1, I'm
curious to see how the research departments will be able to cope with
the licensing issues and TCO of using the MS solution compared to the
FOSS and/or POSIX proprietary approach. There is also a question of
readily available resources that will be able to run the code MS
flavored code, there are many MPI+posix clusters out there, none that I
know of that run MS HPC.
*From:* [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] *On Behalf Of *Eric Thibodeau
*Sent:* Wednesday, September 17, 2008 1:28 PM
*To:* Lux, James P
*Cc:* Beowulf
*Subject:* Re: [Beowulf] MS Cray
On that node, here are my questions to the MS implementation of
clustering (and how CX1 will actually be usable or how one will be
able to develop _for_ execution on one of the MS based CX1):
Currently, most of our users are under Linux on their WS so that they
can develop something that will potentially run off a big cluster.
This implies the users are under a POSIX compliant OS with good
MPI/OpenMP/threading support, which waters down to Linux or OSX (those
Power Macs are impressive and *silent*).
Where I have reserves about the MS solution is as follows: how will MS
users be able to develop parallel code locally on their WS without
needing to upgrade/change their hardware/OS to be compatible with a MS
based cluster/CX1. It's not made clear weather the "clustering tools"
are tightly integrated into the CX1 platform or if, as with Linux or
OSX, it's a simple case of installing mpi-ish libs (and a few others).
With the pricing scheme, I can't imagine _every_ dev getting their own
CX1 to play on so I believe adoption of the platform required ease of
installation (ie: all tools should be available throughout windows
2000-xp-vista) and shouldn't even be version specific (IMHO)...but
that's me being used to Linux heh! ;)
Eric
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