[Pw_forum] i/o error in davcio in the phonon calculation

[Jian ZHOU]

Dear Eyvaz,

Thank you for your reply.

I found it seems a parallel problems. When I do parallel calculation
for the scf and phonon calculation, it stops with errors.  However, if
I use only 1 cpu to do the scf and phonon calculation, it seems works
well. The serial ph.x has been running for 2 days, I am not sure that
if it is abnormal, since the scf calculation is quite fast with 1 hour
by 1 cpu.

In the output file, it said he found 17 "Representations", It has done
more that 11 Representations now.



On 6/30/05, Eyvaz Isaev <eyvaz_isaev at yahoo.com> wrote:
> Hi,
> 
> I am a "someone who advised increase max_irr_dim". But
> in your particular case it may not work because you
> have davcio-error meaning that something was wrong in
> your previous calculations (davcio - davidson
> input-output). Probably, it is due to a network error
> because there is a strange message "task # 2" and
> "task # 3". Besides, there is also "MPI abort"
> message.
> 
> Bests,
> Eyvaz
> 
> --- Jian ZHOU <zjspam at gmail.com> wrote:
> 
> > Dear all,
> >
> > I have compiled the pwscf v2.1.4 successfully and
> > also have run the
> > example02 without any error.  However, when I tried
> > to do another
> > phonon calculation of Gamma point, it stops during
> > running the ph.x.
> >
> > I firstly run a scf calculation from scratch and
> > then do a gamma point
> > phonon calculation, reading the previous output
> > files(The two outdirs
> > are the same in the two calculation). The following
> > is the screen
> > output message of ph.x.
> >
> >
> ----------------------------------------------------------------------------
> > ...
> >      Atomic displacements:
> >      There are  17 irreducible representations
> >
> >      Representation     1      3 modes - To be done
> >
> >      Representation     2      3 modes - To be done
> >
> >      Representation     3      2 modes - To be done
> >
> >      Representation     4      3 modes - To be done
> >
> >      Representation     5      3 modes - To be done
> >
> >      Representation     6      3 modes - To be done
> >
> >      Representation     7      3 modes - To be done
> >
> >      Representation     8      1 modes - To be done
> >
> >      Representation     9      3 modes - To be done
> >
> >      Representation    10      2 modes - To be done
> >
> >      Representation    11      3 modes - To be done
> >
> >      Representation    12      2 modes - To be done
> >
> >      Representation    13      1 modes - To be done
> >
> >      Representation    14      3 modes - To be done
> >
> >      Representation    15      3 modes - To be done
> >
> >      Representation    16      1 modes - To be done
> >
> >      Representation    17      3 modes - To be done
> >   IOS =           253
> >
> >
> >
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> >      from davcio : error #        20
> >      i/o error in davcio
> >
> >
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> >
> >      stopping ...
> > [0] MPI Abort by user Aborting program !
> > [0] Aborting program!
> > p0_5498:  p4_error: : 0
> >
> > -----------------------------------------------stop
> > here
> >
> > There is also a CRASH file with the content:
> >
> >
> >
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> >      task #         2
> >      from set_irr : error #         0
> >      npert > max_irr_dim
> >
> >
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> >
> >
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> >      task #         3
> >      from set_irr : error #         0
> >      npert > max_irr_dim
> >
> >
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> >
> >
> >
> -------------------------------------------------------------
> >
> > I have searched the pw forum and some one suggests
> > that one should
> > increase the max_irr_dim in the phcom.f90.  However,
> > it seems not work
> > after I increased the value.
> >
> >
> http://www.democritos.it/pipermail/pw_forum/2005-March/002167.html
> >
> >
> > Thank you in advance.
> >
> > Best wishes,
> >
> > Jian
> > _______________________________________________
> > Pw_forum mailing list
> > Pw_forum at pwscf.org
> > http://www.democritos.it/mailman/listinfo/pw_forum
> >
> 
> 
> 
> 
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