[Pw_forum] installing QE

[vicky singh]

Thanks a lot.

On Wed, May 25, 2011 at 1:08 PM, Sanjeev Gupta <physics.skgupta at gmail.com>wrote:

> Dear Vicky
>
> Go in download package manager and just "type" there "mpich" , it will find
> the required files, which you install. It is very easy now. Thanks to
> developer for hard effort to make it easy. After installation of mpich, then
> you configure as you said before in mail. it will work fine.
>
>
> Best
> Sanjeev
> Dept. of Phys.
> Bhavnagar University
>
>
>
>
> On Thu, May 26, 2011 at 12:14 AM, Eric Germaneau <germaneau at gucas.ac.cn>wrote:
>
>>  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>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 <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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>>>
>>
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>>
>>
>> --
>>  * Be the change you wish to see in the world
>> *  — Mahatma Gandhi —
>>
>> Dr. Éric Germaneau <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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>>
>
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