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

[Eyvaz Isaev]

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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