Dear Prof. Laurence Marks Thank you very much for this information
Le sam. 22 juin 2019 à 16:16, Laurence Marks <laurence.ma...@gmail.com> a écrit : > Ignore my last email. > > Running 4 k-pts as you had before is always faster than multithreading. > > On Sat, Jun 22, 2019, 16:06 Laurence Marks <laurence.ma...@gmail.com> > wrote: > >> This is because you are running 4 kpt-parallel processes, and each is >> asking for 4 cores, i.e. 16 total. They interfere/clash, hence it is slower. >> >> --- >> Prof Laurence Marks >> "Research is to see what everyone else has seen, and to think what nobody >> else has thought", Albert Szent-Gyorgi >> www.numis.northwestern.edu >> >> On Sat, Jun 22, 2019, 15:35 Wien2k User <wien2k.u...@gmail.com> wrote: >> >>> Dear Prof. P. Blaha; >>> >>> I did a test to compare the new machines file with the old for example >>> i have used 4 core CPU >>> the new >>> >>> 1:localhost >>> omp_global:4 >>> ..... >>> >>> with the old ; >>> 1:localhost >>> 1:localhost >>> 1:localhost >>> 1:localhost >>> >>> I noticed that the calculations with the new file are slower than with >>> the old one with a difference of 5 minutes for 1 cycle calculation of 23/28 >>> minutes >>> >>> >>> _______________________________________________ >>> Wien mailing list >>> Wien@zeus.theochem.tuwien.ac.at >>> >>> https://urldefense.proofpoint.com/v2/url?u=http-3A__zeus.theochem.tuwien.ac.at_mailman_listinfo_wien&d=DwICAg&c=yHlS04HhBraes5BQ9ueu5zKhE7rtNXt_d012z2PA6ws&r=U_T4PL6jwANfAy4rnxTj8IUxm818jnvqKFdqWLwmqg0&m=fypTr9PRHMWdeEVObsoqODSGR_k_KTwkVaxSK7ygM64&s=Msx21aASUOxt_vM9ko7T2j7sqxbgtRV5X1SID8hbL9o&e= >>> SEARCH the MAILING-LIST at: >>> https://urldefense.proofpoint.com/v2/url?u=http-3A__www.mail-2Darchive.com_wien-40zeus.theochem.tuwien.ac.at_index.html&d=DwICAg&c=yHlS04HhBraes5BQ9ueu5zKhE7rtNXt_d012z2PA6ws&r=U_T4PL6jwANfAy4rnxTj8IUxm818jnvqKFdqWLwmqg0&m=fypTr9PRHMWdeEVObsoqODSGR_k_KTwkVaxSK7ygM64&s=bya__2KChacoHpbFbmX3ix9gd3ITHtm8iq2pQsC6CGc&e= >>> >> _______________________________________________ > Wien mailing list > Wien@zeus.theochem.tuwien.ac.at > http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien > SEARCH the MAILING-LIST at: > http://www.mail-archive.com/wien@zeus.theochem.tuwien.ac.at/index.html >
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