[oi-dev] difference between mpich and openmpi packages?

[Aurélien Larcher]

On Sun, Mar 19, 2017 at 7:44 PM, Andreas Wacknitz <A.Wacknitz at gmx.de> wrote:

>
>
> Am 19.03.17 um 18:44 schrieb Aurélien Larcher:
>
>
>
> On Sun, Mar 19, 2017 at 6:42 PM, Andreas Wacknitz <A.Wacknitz at gmx.de>
> wrote:
>
>> Am 19.03.17 um 18:40 schrieb Aurélien Larcher:
>>
>>
>>
>> On Sun, Mar 19, 2017 at 6:26 PM, Andreas Wacknitz <A.Wacknitz at gmx.de>
>> wrote:
>>
>>> I just realised that we have
>>>
>>> library/mpich/gcc
>>> library/mpich/gcc/modulefiles
>>>
>>> and
>>>
>>> library/openmpi/gcc
>>> library/openmpi/gcc/modulefiles
>>>
>>> Even their package descriptions are similar. What are the differences
>>> and do we need both?
>>>
>>
>> Two different implementations of MPI.
>> Parallel code is better against more than one implementation.
>>
>> Ok, one more question: The modulefiles packages seem to only provide
>> paths, no real contents. Is that intentionally?
>>
>
> It is incorrect, they provide environment-modules configuration files.
>
> Ah, ok. I was irritated. Thanks.
>

If you install environment-modules and call module avail you can see the
modules present on the system.
Each module corresponds to a module file.
It is a convenient way to deliver different implementations and/or versions
of the same software without enforcing anything system-wide.
This is the common way of delivering software packages on supercomputers.


>
>>
>>
>>
>>>
>>> Regards
>>> Andreas
>>>
>>>
>>> _______________________________________________
>>> oi-dev mailing list
>>> oi-dev at openindiana.org
>>> https://openindiana.org/mailman/listinfo/oi-dev
>>>
>>
>>
>>
>> --
>> ---
>> Praise the Caffeine embeddings
>>
>>
>> _______________________________________________
>> oi-dev mailing listoi-dev at openindiana.orghttps://openindiana.org/mailman/listinfo/oi-dev
>>
>> _______________________________________________ oi-dev mailing list
>> oi-dev at openindiana.org https://openindiana.org/mailman/listinfo/oi-dev
>
> --
> --- Praise the Caffeine embeddings
>
> _______________________________________________
> oi-dev mailing listoi-dev at openindiana.orghttps://openindiana.org/mailman/listinfo/oi-dev
>
>
> _______________________________________________
> oi-dev mailing list
> oi-dev at openindiana.org
> https://openindiana.org/mailman/listinfo/oi-dev
>



-- 
---
Praise the Caffeine embeddings
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://openindiana.org/pipermail/oi-dev/attachments/20170319/e228123c/attachment-0002.html>