[Pw_forum] The -np option and openmpi.

[joaquin peralta]

Dear André

I'm embarrassed, it was always my mistake. I have scripts that
generate these pbs and the option was always bad allocated for
openmpi. I was using -np instead of -npool.

I will try again, in order to check the performance

Thank you so much

Joaquin

On Sat, Aug 28, 2010 at 8:42 AM, Andre Martinotto
<almartinotto at gmail.com> wrote:
> Dear Joaquin,
>
> In principle the process of compilation appears to be correct.
>
> What is your execution command? You are using a -npool 8?  The number of
> process (-np ) is equal to 64 in both cases, but in the second case I
> believe that you are using a -npool 8.
>
> For example, something like:
> /opt/openmpi/bin/mpirun -np 64 /opt/espresso-4.1.2/bin/pw.x -npool 8 <
> entrada.in
>
>
> Best regards,
> André Luis Martinotto
>
> Andre Martinotto
> Email: almartinotto at gmail.com
> Computing Department
> Universidade de Caxias do Sul
> Caxias do Sul - RS, Brazil
>
> On Sat, Aug 28, 2010 at 3:05 AM, joaquin peralta <jperaltac at gmail.com>
> wrote:
>>
>> Dear Forum
>>
>> I compiled a couple of days ago, openmpi 1.4 and quantum espresso,
>> however when I sent the job to the queue system. The nodes show that
>> the command was executed with the "-np 8" option, but the output not :
>>
>>      Parallel version (MPI), running on    64 processors
>>      R & G space division:  proc/pool =   64
>>
>> and with openMPI show me different status :
>>
>>   Parallel version (MPI), running on   64 processors
>>   K-points division:     npool     =    8
>>   R & G space division:  proc/pool =   8
>>
>> I'm a little bit confused, I don't understand what I did bad in the
>> compilation procedure of openmpi1.4 or espresso.
>>
>> OpenMPI Settings
>>
>> ./configure --prefix=/local/openmpi --disable-dlopen
>> --enable-mpirun-prefix-by-default --enable-static --enable-mpi-threads
>> --with-valgrind --without-slurm --with-tm --without-xgrid
>> --without-loadleveler --without-elan --without-gm --without-mx
>> --with-udapl --without-psm CC=icc CXX=icpc F77=ifort FC=ifort
>>
>> And the quantum espresso setting in the compilation are located here :
>>
>> http://www.lpmd.cl/jperalta/uploads/Site/make-ompi.sys
>>
>> Really every help I appreciate a lot, because the difference in time
>> calculations, is huge using the -np for my cases.
>>
>> Joaquin Peralta
>> Materials Science and Engineering
>> Iowa State University
>>
>> --
>> ----------------------------------------------------
>> Group of NanoMaterials
>> ----------------------------------------------------
>> http://www.gnm.cl
>> ----------------------------------------------------
>> Joaquín Andrés Peralta Camposano
>> ----------------------------------------------------
>> http://www.lpmd.cl/jperalta
>>
>> In a world without frontiers,
>> who needs Gates and Win.
>> _______________________________________________
>> Pw_forum mailing list
>> Pw_forum at pwscf.org
>> http://www.democritos.it/mailman/listinfo/pw_forum
>
>
> _______________________________________________
> Pw_forum mailing list
> Pw_forum at pwscf.org
> http://www.democritos.it/mailman/listinfo/pw_forum
>
>



-- 
----------------------------------------------------
Group of NanoMaterials
----------------------------------------------------
http://www.gnm.cl
----------------------------------------------------
Joaquín Andrés Peralta Camposano
----------------------------------------------------
http://www.lpmd.cl/jperalta

In a world without frontiers,
who needs Gates and Win.