"Pushkar R. Pande" <pushkar.pa...@gatech.edu> wrote on 03/22/2010 11:12:00
PM:
> >Not enough information. What is the architecture of the cluster, what
> >is the underlying network, what transport do you plan to use?
> Following are the hardware and software features of the cluster (machine
B):
>
> Hardware Features:
> * 6 Dell PowerEdge R710 rack-mounted servers, each with:
> o 2 quad-core Intel Xeon X5570 processors,
> o 48GB of memory
> * 12 total Intel Xeon X5570 processors (48 total processor cores)
> * Gigabit Ethernet-connected (no high-speed interconnect yet)
>
> Software Features:
> * Red Hat Enterprise Linux 5
> * Torque resource manager & Maui cluster scheduler
> * MPI - Message Passing Interface
>
> Machine A is a head node that is used to submit jobs to the compute node
> (machine B) using qsub through torque queues.
>
> >Are you using the X10 release, or building X10 from source?
> I am using the X10 release available from the website.
The only transport that is packaged with the current X10 release for
your OS/architecture combo is "pgas_sockets". This means that you
would probably not see much performance out of your setup (since sockets
is a purely functional implementation, with no performance guarantees).
You should be able to use the MPI transport on your cluster, but that
transport is not included in the X10 release by default. You would
have to build X10 with the MPI transport from source. Then compile
with "x10c++ -x10rt mpi" to get an MPI executable, which can then be
run on your cluster with "mpirun".
If you just want to try out X10 and see if it runs on the cluster,
with no performance expectations, then feel free to use the default
sockets transport. You can use mpirun to launch an X10+sockets
executable, though it will use the sockets transport to communicate
once launched.
Hope this answers your questions.
Igor
--
Igor Peshansky (note the spelling change!)
IBM T.J. Watson Research Center
X10: Parallel Productivity and Performance (http://x10-lang.org/)
XJ: No More Pain for XML's Gain (http://www.research.ibm.com/xj/)
"I hear and I forget. I see and I remember. I do and I understand" --
Confucius
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