[mpich-discuss] rank 0 on one node

[rigved sharma]

hello mahesh,

i want to know how  gwdir or -wdir options are helping in soling the problem?
can u list down the actual commans? i think ppl are interested to know abt it?

On 9/18/12, akshar bhosale <akshar.bhosale at gmail.com> wrote:
> hi
> how working dir is related to my situation?
> pl elaborate the actual commands..
> thanks
>
> On 9/17/12, Mahesh Doijade <maheshdoijade at gmail.com> wrote:
>> Hi,
>>     I can't say particularly about running using torque but to run on
>> cluster using Intel MPI you can use the mpiexec -gwdir or -wdir options
>> to
>> specify a working directory for the application.
>>
>> For instance: mpiexec.exe -machinefile machine_file -n 4 -wdir
>> \\host\share_folder IMB-MPI1.exe
>>
>> your machinefile need to contain process to node for example-
>>
>>  2:node1
>>
>> 3:node2
>>
>> --
>>
>> Regards,
>> -- Mahesh Doijade
>> MTech - II (CSE) ,
>> Walchand College of Engineering, Sangli
>> Cell No.: 9969073453
>> http://www.hpc.wce.org.in/site/
>>
>> On Mon, Sep 17, 2012 at 2:24 PM, rigved sharma
>> <rigved.sharma123 at gmail.com>wrote:
>>
>>> Hi Mahesh,
>>>
>>>    can you be more specific about it? we rae using intel mpi and torque.
>>>
>>> On 9/17/12, Mahesh Doijade <maheshdoijade at gmail.com> wrote:
>>> > Hi,
>>> >     Initially you need to form the cluster by doing the ssh
>>> > passwordless
>>> > login amongst the node in your cluster, then you have to create a
>>> > machinefile consisting of process to node mapping and pass it to
>>> > mpiexec
>>> > while launching your MPI job. all the details about the creation of
>>> > machinefile and job launching is given in link below.
>>> > http://wiki.mcs.anl.gov/mpich2/index.php/Using_the_Hydra_Process_Manager
>>> >     So in your case of launching of the master process on the separate
>>> > desired node can be achieved through mentioning the same in the
>>> machinefile
>>> > and rest as required.
>>> >
>>> > Regards,
>>> > -- Mahesh Doijade
>>> > MTech - II (CSE) ,
>>> > Walchand College of Engineering, Sangli
>>> >
>>> >
>>> >
>>> >
>>> >
>>> > On Mon, Sep 17, 2012 at 1:51 AM, rigved sharma
>>> > <rigved.sharma123 at gmail.com>wrote:
>>> >
>>> >> hi,
>>> >>
>>> >> i have intel mpi configured on our cluster where we are running the
>>> >> job
>>> >> in
>>> >> which it is required that only master process should execute on 1
>>> >> node
>>> (1
>>> >> seperate node of 8 procs) and rest 63 processes on 63 procs (8 nodes
>>> >> of
>>> 8
>>> >> proc each). how it can be acieved.
>>> >>
>>> >> -ruchir b.
>>> >>
>>> >>
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>>> >>
>>> >>
>>> >
>>>
>>
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