Dear sir,

I was given following command it will give floating point error .
#mpirun -f mfile -np 2  hello4
Floating point exception

if I give following it will execute for single node

[root@masternode ~]# mpirun -np 2 hello4
Hello world from processor masternode.csd.com, rank 0 out of 2 processors
Hello world from processor masternode.csd.com, rank 1 out of 2 processors
[root@masternode ~]#

Please guide me for above error .waiting for ur reply.

On 8/20/13, urmila pol <urmilec@gmail.com> wrote:
> I do everything now i have one error flaoting point exception i am
> running my program now
> waiting for ur reply
>
> With regards,
>
> Dr.Urmila R. Pol
> Assistant Professor,
> Department of computer Science,
> Shivaji University, Kolhapur.
>
>
> On Tue, Aug 20, 2013 at 10:44 AM, Mahesh Doijade
> <maheshdoijade@gmail.com>wrote:
>
>>
>>      The issue seems to be that you have probably not created a
>> machinefile which consists of node name to number of processes mapping
>> and
>> this file should be present in the same dir. of the other nodes on which
>> you are launching other MPI processes, this is required in case you want
>> to
>> run the MPI program across the two or more nodes, you can find more
>> details
>> of the format in which this information has to be in the machinefile and
>> the other requisite steps need for running your MPI program across
>> multiple
>> nodes from this link
>> http://wiki.mpich.org/mpich/index.php/Using_the_Hydra_Process_Manager
>>        Also, in order to launch the processes across multiple nodes you
>> need to do ssh passwordless login among those nodes, in case you are
>> using
>> ssh as the connection mechanism, you can find more details about the
>> procedure for ssh passwordless login over here
>> http://www.techlitic.com/ssh-passwordless-login.html
>>
>>
>> Regards,
>> Mahesh Doijade,
>> http://www.techdarting.com/
>>
>>
>> On Tue, Aug 20, 2013 at 8:34 AM, Pavan Balaji <balaji@mcs.anl.gov> wrote:
>>
>>>
>>> I'm pasting the error inline, for others' information.
>>>
>>> FYI, the error is "unable to open host file: machinefile".
>>>
>>> ----8<----
>>> mpirun -f machinefile -n 2 /home/urp/mpich-install/hello
>>> [mpiexec@masternode.csd.com] HYDU_parse_hostfile
>>> (./utils/args/args.c:323): unable to open host file: machinefile
>>> [mpiexec@masternode.csd.com] mfile_fn (./ui/mpich/utils.c:341): error
>>> parsing hostfile
>>> [mpiexec@masternode.csd.com] match_arg (./utils/args/args.c:153): match
>>> handler returned error
>>> [mpiexec@masternode.csd.com] HYDU_parse_array (./utils/args/args.c:175):
>>> argument matching returned error
>>> [mpiexec@masternode.csd.com] parse_args (./ui/mpich/utils.c:1609): error
>>> parsing input array
>>> [mpiexec@masternode.csd.com] HYD_uii_mpx_get_parameters
>>> (./ui/mpich/utils.c:1660): unable to parse user arguments
>>> [mpiexec@masternode.csd.com] main (./ui/mpich/mpiexec.c:153): error
>>> parsing parameters
>>> [root@masternode ~]#
>>> ----8<----
>>>
>>> On 08/19/2013 01:27 AM, urmila pol wrote:
>>>
>>>> Dear sir,
>>>>
>>>> I have attaching the screenshots of my errors please guide me .waiting
>>>> for reply.
>>>>
>>>>
>>>> With regards,
>>>>
>>>> Dr.Urmila R. Pol
>>>> Assistant Professor,
>>>> Department of computer Science,
>>>> Shivaji University, Kolhapur.
>>>>
>>>>
>>> --
>>> Pavan Balaji
>>> http://www.mcs.anl.gov/~balaji
>>> ______________________________**_________________
>>> discuss mailing list     discuss@mpich.org
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>>>
>>
>>
>>
>>
>>
>>
>>
>>
>

--

With regards,

Dr.Urmila R. Pol
Assistant Professor,
Department of computer Science,
Shivaji University, Kolhapur.