[Pw_forum] error in the NSCF calculation with a large number of kpoints.

[Dingfu Shao]

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 <http://pwscf.org/mailman/listinfo/pw_forum>]
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 <http://pwscf.org/mailman/listinfo/pw_forum>]
HYDT_dmxu_poll_wait_for_event
(./tools/demux/demux_poll.c:77): callback returned error status
[proxy:0:0 at node6 <http://pwscf.org/mailman/listinfo/pw_forum>] main
(./pm/pmiserv/pmip.c:206): demux engine error
waiting for event
[mpiexec at node0 <http://pwscf.org/mailman/listinfo/pw_forum>]
control_cb (./pm/pmiserv/pmiserv_cb.c:202): assert
(!closed) failed
[mpiexec at node0 <http://pwscf.org/mailman/listinfo/pw_forum>]
HYDT_dmxu_poll_wait_for_event
(./tools/demux/demux_poll.c:77): callback returned error status
[mpiexec at node0 <http://pwscf.org/mailman/listinfo/pw_forum>]
HYD_pmci_wait_for_completion
(./pm/pmiserv/pmiserv_pmci.c:197): error waiting for event
[mpiexec at node0 <http://pwscf.org/mailman/listinfo/pw_forum>] 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 <dingfu.shao at gmail.com>*
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