Yes, a fast file system. NFS via Ethernet may still be usable as long as you do not have heavy or frequent I/O. Writing via NFS is especially slow.
For your information: https://gitlab.com/QEF/q-e/-/issues/299 Paolo On Mon, Mar 22, 2021 at 10:15 AM Takahiro Chiba < [email protected]> wrote: > 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 > [email protected] > ----- > > 2021年3月19日(金) 6:14 Paolo Giannozzi <[email protected]>: > > > > On Thu, Mar 18, 2021 at 6:59 PM Paolo Giannozzi <[email protected]> > 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 > > > > _______________________________________________ > > Quantum ESPRESSO is supported by MaX (www.max-centre.eu) > > users mailing list [email protected] > > https://lists.quantum-espresso.org/mailman/listinfo/users > _______________________________________________ > Quantum ESPRESSO is supported by MaX (www.max-centre.eu) > users mailing list [email protected] > https://lists.quantum-espresso.org/mailman/listinfo/users -- 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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