[mpich-discuss] MPICH on Single Machine (vivian)

[Vivian]

Hi, Andy,
     (1) If all the processors are in one computer, you don't need to
identify host names.
     "mpiexec –n 16 c:\program files\mpich2\examples\cpi.exe"
     (2) If the processors distribute in different computers connected
through a network, you need to find the following information for each
computer.
                        Domain Name: domainname  (It is required to find a
computer in the network)
                        Host Name: hostname (The host name can be used to
identify a computer only when all the computers are in the same subnetwork.)
                        IP Address: 1.2.3.4
                        User Name: username  (The user name required to log
in the machine)
                        Password: **********  (The corresponding password
required to log in the machine)
       Then you need to register each “user” in the master node so that a
domain name, user name and password can be automatically retrieved by
mpiexec to launch processes.
        "mpiexec –register user 1 domainname\username\**********"
       After the above steps, you can run
        "mpiexe c –hosts 16 domainnameA 1 domainnameB 1 .....  c:\program
files\mpich2\examples\cpi.exe"

Vivian
-------------------------------------------------------------------------------------------------------------------------------------------------------

>
> Message: 1
> Date: Wed, 25 Mar 2009 15:55:45 -0400
> From: "Robertson, Andrew" <andrew.robertson at atk.com>
> Subject: [mpich-discuss] MPICH on Single Machine
> To: <mpich-discuss at mcs.anl.gov>
> Message-ID:
>        <25F430F61D9E9A459832065C99EA390B03BD4D36 at ny10se01.atk.com>
> Content-Type: text/plain; charset="us-ascii"
>
> Folks
> I have a program that does not have any shared memory parallelization.
> Thus even though the 16 processors of my quad socket / quad core machine
> are on the same motherboard, I need to have mpich2 up and running.
>
> I need to get the machine a name so it isnt localhost
> I start an mpd with no host name or node count
> I fire up the job with an mpiexec -n 16
>
> Or am I missing something here?  Do I need an mpdboot that fires up 16
> daemons?
>
> Should I be using gforker?? If so how is that done?
> Thanks
> - Andy
>
>
> Andrew Robertson P.E.
> CFD Analyst
> GASL Operations
> Tactical Propulsion and Controls
> ATK
> 77 Raynor Avenue
> Ronkokoma NY 11779
> 631-737-6100 Ext 120
> Fax: 631-588-7023
> www.atk.com
>
> !! Knowledge and Thoroughness Baby !!
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mcs.anl.gov/pipermail/mpich-discuss/attachments/20090326/69cdb167/attachment.htm>