There is no similar page for the phonon code, but there is this remark: "*For phonon calculations, each of the 3Nat modes requires a time of the same order of magnitude of self-consistent calculation in the same system (possibly times a small multiple)." *More accurate estimates depend a lot upon details of the calculation that are not easy to predict (such as how quickly the system converges)
Paolo On Tue, Nov 8, 2016 at 12:18 PM, Pablo García Risueño < garcia.risu...@gmail.com> wrote: > Thank you very much, prof. Giannozzi, that is what I was looking for. Do > you know if a similar page exists for the ph.x code? > > Best regards > > 2016-11-08 11:38 GMT+01:00 Paolo Giannozzi <p.gianno...@gmail.com>: > >> You can find something here: >> http://www.quantum-espresso.org/wp-content/uploads/Doc/pw_us >> er_guide/node14.html >> >> Paolo >> >> On Tue, Nov 8, 2016 at 11:29 AM, Pablo García Risueño < >> garcia.risu...@gmail.com> wrote: >> >>> Dear Federico >>> >>> Thank you very much for your message. Unfortunately these tests seem to >>> measure the computing time as a function of the number of cores, and not as >>> a function of the number of electrons//plane waves//etc. >>> >>> >>> >>> 2016-11-08 11:09 GMT+01:00 Federico Iori <federico.i...@u-psud.fr>: >>> >>>> Hi Pablo. >>>> >>>> Did you have a look at computational centers benchmark test? >>>> >>>> I can suggest you >>>> http://www.quantum-espresso.org/benchmarks/ >>>> >>>> www.hpc.cineca.it/content/quantumespresso-benchmark >>>> >>>> I am not sure they can provide all the info you are looking for >>>> regarding scaling vs all the parameters of th system thou, but maybe they >>>> can help somehow. >>>> >>>> [image: Université Paris-Sud] >>>> *Federico IORI* >>>> Marie Curie Fellow >>>> Laboratoire de Physique des Solides >>>> Bâtiment 510 - Rue André Rivière >>>> 91400 Orsay >>>> >>>> >>>> ------------------------------ >>>> *De: *"Pablo García Risueño" <garcia.risu...@gmail.com> >>>> *Para: *"PWSCF Forum" <pw_forum@pwscf.org> >>>> *Enviados: *Martes, 8 de Noviembre 2016 10:50:10 >>>> *Asunto: *[Pw_forum] Question on scaling of Quantum Espresso >>>> >>>> >>>> Dear members of the Espresso community >>>> >>>> I would like to know how the total execution time of Quantum Espresso >>>> (pw.x and ph.x) scales with the different parameters of the system, like >>>> number of electrons, size of the box, ecutwfc, etc. It would be very useful >>>> for me to know in which parameters the scaling is linear, quadratic or >>>> cubic. Of course I can do tests on my own, but they would be just partly >>>> reliable due to Amdahl's issues. >>>> >>>> Thank you very much for your help. Best regards. >>>> >>>> -- >>>> -- >>>> >>>> Dr. Pablo García Risueño >>>> >>>> Institut für Physikalische Chemie, Universität Hamburg, Grindelallee >>>> 117, 20146 Hamburg >>>> >>>> Tel. +49 040 42 83 84 82 7 >>>> >>>> _______________________________________________ >>>> Pw_forum mailing list >>>> Pw_forum@pwscf.org >>>> http://pwscf.org/mailman/listinfo/pw_forum >>>> >>>> >>>> _______________________________________________ >>>> Pw_forum mailing list >>>> Pw_forum@pwscf.org >>>> http://pwscf.org/mailman/listinfo/pw_forum >>>> >>> >>> >>> >>> -- >>> -- >>> >>> Dr. Pablo García Risueño >>> >>> Institut für Physikalische Chemie, Universität Hamburg, Grindelallee >>> 117, 20146 Hamburg >>> >>> Tel. +49 040 42 83 84 82 7 >>> >>> _______________________________________________ >>> Pw_forum mailing list >>> Pw_forum@pwscf.org >>> http://pwscf.org/mailman/listinfo/pw_forum >>> >> >> >> >> -- >> Paolo Giannozzi, Dip. Scienze Matematiche Informatiche e Fisiche, >> Univ. Udine, via delle Scienze 208, 33100 Udine, Italy >> Phone +39-0432-558216, fax +39-0432-558222 >> >> >> _______________________________________________ >> Pw_forum mailing list >> Pw_forum@pwscf.org >> http://pwscf.org/mailman/listinfo/pw_forum >> > > > > -- > -- > > Dr. Pablo García Risueño > > Institut für Physikalische Chemie, Universität Hamburg, Grindelallee 117, > 20146 Hamburg > > Tel. +49 040 42 83 84 82 7 > > _______________________________________________ > Pw_forum mailing list > Pw_forum@pwscf.org > http://pwscf.org/mailman/listinfo/pw_forum > -- Paolo Giannozzi, Dip. Scienze Matematiche Informatiche e Fisiche, Univ. Udine, via delle Scienze 208, 33100 Udine, Italy Phone +39-0432-558216, fax +39-0432-558222
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