[mpich-discuss] Linking to personal libraries

[Wesley Bland]

No, this is the correct way to do it.

On Jun 6, 2013, at 11:12 AM, Alejandro Allievi <alejandro.allievi at gmail.com> wrote:

> Is there a better way??
> 
> 
> On Thu, Jun 6, 2013 at 3:40 PM, Wesley Bland <wbland at mcs.anl.gov> wrote:
> That's true and for most smallish clusters, that's how people use it.
> 
> On Jun 6, 2013, at 11:09 AM, Alejandro Allievi <alejandro.allievi at gmail.com> wrote:
> 
>> Hi Wesley,
>> 
>> Just to clarify myself: provided our NFS mirrors my home directory and that LD_LIBRARY_PATH is set correctly, the dynamic compile/link step for the user (me) is the same as for static compile/link??
>> 
>> Thanks again Wesley!!
>> 
>> Alejandro
>> 
>> 
>> On Thu, Jun 6, 2013 at 11:15 AM, Wesley Bland <wbland at mcs.anl.gov> wrote:
>> It depends on whether you are linking your library statically or dynamically. If you are linking statically, the linker puts everything in one executable that is sent to all of the nodes. If you do it dynamically, you need to make sure your libraries are available on all of the nodes you will be using (usually by using something like NFS to mirror your home directory across the cluster. You will also need to make sure your environment is set up correctly to allow the libraries to be found on the remote process, usually via an environment variable such as LD_LIBRARY_PATH. 
>> 
>> Wesley
>> 
>> 
>> On Jun 6, 2013, at 6:18 AM, Alejandro Allievi <alejandro.allievi at gmail.com> wrote:
>> 
>>> Hi  
>>> 
>>> When linking to personal libraries using MPICH2, how does each process access them in a distributed environment?? Does the linker actually combines everything into a single executable program and "sends a copy" of entire executable to each process even though not all processes may use the libraries?? Can somebody shed some light on the entire linking process??
>>> 
>>> Thanks for any help!!
>>> 
>>> Alejandro
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>> 
>> -- 
>> Alejandro Allievi
>> http://www.ace-net.ca/wiki/Alejandro_Allievi   
>>  
>> "Tenez, mon ami, si vous y pensez bien, vous trouverez qu'en tout, notre véritable sentiment n'est pas celui dans lequel nous n'avons jamais vacillé; mais celui auquel nous sommes le plus habituellement revenus". Denis Diderot. 
>>  
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> 
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> 
> 
> -- 
> Alejandro Allievi
> http://www.ace-net.ca/wiki/Alejandro_Allievi   
>  
> "Tenez, mon ami, si vous y pensez bien, vous trouverez qu'en tout, notre véritable sentiment n'est pas celui dans lequel nous n'avons jamais vacillé; mais celui auquel nous sommes le plus habituellement revenus". Denis Diderot. 
>  
> Este e-mail esta consignado sólo para el destinatario designado en el mismo y puede contener información confidencial y privilegiada. Su distribución o copiado está prohibido. Si Usted no fuera el destinatario designado, por favor notifíquenos de inmediato y destruya este e-mail en forma permanente así como todas las copias del mismo. Ce courriel peut renfermer des renseignements confidentiels et privilégiés et s'adresse au destinataire désigné seulement. La distribution ou la copie de ce courriel est interdit. Si vous n'êtes pas le destinataire désigné, veuillez nous en aviser immédiatement et détruire de façon permanente ce courriel ainsi que toute copie de celui-ci. This e-mail may contain confidential information, and is intended only for the named recipient and may be privileged. Distribution or copying of this email is prohibited. If you are not the named recipient, please notify us immediately and permanently destroy this email and all copies of it.
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