[Pw_forum] Large files

[Dariusz Chrobak]

Thank you for your reply,
I found that your second proposition works very good.
Is there kernel option that supports large file system? I have 2.6.3 kernel.

Best regards Darek

Mickael Profeta wrote:

> Hello
>
> This not something trivial to solve.
>
> Linux on a 32bits architectecture has this 2Gb files limit.
> There is a LFS (large file support) option in 2.4 kernel which can 
> overcome this problem, but you will have to recompile your kernel, and 
> then recompile pwscf with the hope it will take it into account (never 
> tested...)
>
> Maybe the other solution is to increase the number of processors used: 
> at the moment, each processor write its own file, so of you increase 
> their number, each will have less information and can lead to file 
> smaller than 2 Gb. Certainly the easiest solution if you can use it.
>
> Good luck
>
> Mickael
>
>> Hello PWSCF developers and users,
>> How Can I adapt my Linux system and/or PWSCF software for using large 
>> (greater than ~2Gb) files?
>> At present, I am using  PC cluster  with Mandrake 10.0 Linux 
>> operating system working with MPICH environment.
>>
>> Please help me, my boss need results :-)
>>
>> Best regards Darek Chrobak
>> _______________________________________________
>> 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
>
>