[QE-users] [neb.x] How to lessen I/O?

[Takahiro Chiba]

Dear Dr. Giannozzi,

By the expression "parallel file system", you meant fast file systems
such as LUSTRE, not NFS via ethernet, right?

---Sender---
Takahiro Chiba
Undergraduate at Hokkaido University
Expected graduation date: Mar. 2021
Expected to be a graduate student at HU from Apr. 2021
takahiro_chiba at eis.hokudai.ac.jp
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2021年3月19日(金) 6:14 Paolo Giannozzi <p.giannozzi at gmail.com>:
>
> On Thu, Mar 18, 2021 at 6:59 PM Paolo Giannozzi <p.giannozzi at gmail.com> wrote:
>
>> The "wfcdir"" option is  no longer implemented, if I remember correctly.
>
>
> I didn't remember correctly: it is still implemented. As I mentioned earlier, though, it is expected to work only for a subset of all possible use cases. In particular, it should work for the self-consistent code, but I don't know whether it has ever been tested in NEB.
>
> Paolo
>
>
>> It was adding unneeded complexity to an already  (too) complex I/O code, it did not work for many use cases, it was useful only for the rather peculiar case of a parallel machine with no parallel file system. Unfortunately the documentation was not updated to reflect its demise.
>>
>> Paolo
>> --
>> Paolo Giannozzi, Dip. Scienze Matematiche Informatiche e Fisiche,
>> Univ. Udine, via delle Scienze 206, 33100 Udine, Italy
>> Phone +39-0432-558216, fax +39-0432-558222
>>
>
>
> --
> Paolo Giannozzi, Dip. Scienze Matematiche Informatiche e Fisiche,
> Univ. Udine, via delle Scienze 206, 33100 Udine, Italy
> Phone +39-0432-558216, fax +39-0432-558222
>
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