[Pw_forum] installing QE

[Eric Germaneau]

Well, just take a look here 
<http://www.mcs.anl.gov/research/projects/mpich2/> or here 
<http://www.open-mpi.org/>.
I built it long time ago, I remember that was not difficult.
Check whether there is mpich2 or open-mpi package for your distro.
Remember that you have OpenMP on your machine ....

                 Éric.


On 05/25/2011 02:27 AM, vicky singh wrote:
> Dear Eric
> Thanks a lot for your suggestion. Can you let me know that if mpich is 
> not there can it be installed.
>
> vicky singh
>
> On Wed, May 25, 2011 at 10:42 PM, Eric Germaneau 
> <germaneau at gucas.ac.cn <mailto:germaneau at gucas.ac.cn>> wrote:
>
>     Hey Vicky,
>
>     if mpich (for instance) is installed, it will automatically detect it.
>     Then you will have to do
>
>     mpiexec -n 4 path_to_qe_exec < input_file > out_file
>
>     in order to use the 4 cores.
>     Note that this is well documented in the examples.
>
>     The other solution is to build QE with  OpenMP, but I have not
>     really tried.
>     Well, the only one tentative I did was unsuccessful.
>
>     Hope it helps,
>
>                                  Éric.
>
>
>     On 05/25/2011 12:55 AM, vicky singh wrote:
>>     Hi
>>     I have recently  got a new system with i5 processor. Since it has
>>     4 processor how can i install QE such that i can run parallel
>>     processing. Documentation says just to use ./configure and make
>>     to be done for compiling. will these command when run will
>>     consider the system configuration and install parallel version.
>>
>>     Thanks for suggestion in advance.
>>
>>     Vicky singh
>>     research student
>>     Bangalore
>>
>>
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>     -- 
>     /Be the change you wish to see in the world
>     / — Mahatma Gandhi —
>
>     Dr. Éric Germaneau <mailto:germaneau at gucas.ac.cn>
>
>     College of Physical Sciences
>     Graduate University of Chinese Academy of Sciences
>     Yuquan Road 19A
>     Beijing 100049
>     China
>
>     /Please, if possible, don't send me MS Word or PowerPoint attachments
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-- 
/Be the change you wish to see in the world
/ — Mahatma Gandhi —

Dr. Éric Germaneau <mailto:germaneau at gucas.ac.cn>

College of Physical Sciences
Graduate University of Chinese Academy of Sciences
Yuquan Road 19A
Beijing 100049
China

/Please, if possible, don't send me MS Word or PowerPoint attachments
Why? See: http://www.gnu.org/philosophy/no-word-attachments.html /

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