Dear fellow Pwscf users,

I was using the QE vers.3.2.3 (parallel) to do NEB calculations. At the 11th 
iterations, and while relaxing the 4th image, it suddenly stopped with the 
following error message:


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
     from davcio : error #        10
     i/o error in davcio
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

     stopping ...

 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


Also, "restart_mode = restart" in my input file, since the calculation had 
earlier stopped  because the CPU time was over. I observed that similar problem 
was reported on this forum, and the response (by Carlo Sbraccia) was that the 
files in '$outdir' directory should be removed since the restart file for neb 
calculations is that with '.path' extension in the working directory. I 
implemented Carlo's suggestions and removed all the files in the scratch 
directory with prefixes of my calculations, and the program was then restarted. 
But on getting to 4th image, while carrying out the 12th iterations, it stopped 
again, displaying the similar error message as quoted above. Can anyone please 
advise on what I must do next?

Thank you very much.


Abdulrafiu Tunde Raji,
Dept. of Physics,
University of Cape Town,
Rondebosch 7701,
Cape Town,
South Africa.


Raji Abdulrafiu Tunde,
Department of Physics,
University of Cape Town (RW James Bld.),Private Bag X3,
Rondebosch 7701,
Cape Town. South Africa.

Office number : Rm. 522
Cell:  +27722668228
Fax:   +27216503342

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