In newer QE versions by default all KS orbitals are kept in memory. Very convenient but you may run out of memory. See option disk_io
P. On Mon, 2014-04-21 at 12:08 +0800, Dingfu Shao wrote: > Dear QE users, > > I want to plot a fermi surface with a very dense kpoints, so that I > can do some calculation such as the Fermi surface nesting function. A > smaller kpoints number, such as 1200, works fine. But when I take the > nscf calculation with a large kpoints number, such as 2000, the error > happens as forllowing: > > [proxy:0:0 at node6] HYD_pmcd_pmip_control_cmd_cb > (./pm/pmiserv/pmip_cb.c:939): process reading stdin too slowly; can't > keep up > [proxy:0:0 at node6] HYDT_dmxu_poll_wait_for_event > (./tools/demux/demux_poll.c:77): callback returned error status > [proxy:0:0 at node6] main (./pm/pmiserv/pmip.c:206): demux engine error > waiting for event > [mpiexec at node0] control_cb (./pm/pmiserv/pmiserv_cb.c:202): assert > (!closed) failed > [mpiexec at node0] HYDT_dmxu_poll_wait_for_event > (./tools/demux/demux_poll.c:77): callback returned error status > [mpiexec at node0] HYD_pmci_wait_for_completion > (./pm/pmiserv/pmiserv_pmci.c:197): error waiting for event > [mpiexec at node0] main (./ui/mpich/mpiexec.c:331): process manager error > waiting for completion > > > > Does anybody know what is the porblem? > > > Best regards, > > Yours Dingfu Shao > > > -- > > > Dingfu Shao, Ph.D > > Institute of Solid State Physics > > Chinese Academy of Sciences > > P. O. Box 1129 > > Hefei 230031 > > Anhui Province > > P. R. China > > Email: dingfu.shao at gmail.com > > > ______________________________________________________________________ > > _______________________________________________ > Pw_forum mailing list > Pw_forum at pwscf.org > http://pwscf.org/mailman/listinfo/pw_forum -- Paolo Giannozzi, Dept. Chemistry&Physics&Environment, Univ. Udine, via delle Scienze 208, 33100 Udine, Italy Phone +39-0432-558216, fax +39-0432-558222
