[Pw_forum] lapack error in efg calculation

Lilong Li lilong at unc.edu
Fri Mar 18 21:16:35 CET 2005

Yes I am aware of this redirection issue. Actually this is related to
npool. For example, for the scf run, i used
   mpirun -np 16 pw.x -npool 8 < file.in > file.out
If I use the efg.x in the following way:
   mpirun -np 16 efg.x -npool 8 < efg.in > efg.out
I will get 7 "error reading inputpp namelist" error. And I guess (I
didn't check that) if I use '-npool 4' I will get 3 errors. I also tried 
  mpirun -np 16 efg.x -npool 1 < efg.in > efg.out
This time there was no reading inputpp namelist error. But I still get
the davcio error. Probably with a different npool, efg.x reassigns the
calculation differently than the previous scf run.


On Fri, Mar 18, 2005 at 06:58:07PM +0100, Paolo Giannozzi wrote:
> On Friday 18 March 2005 05:15, Lilong Li wrote:
> > I also tried to run 16 processors for efg.x, but it complains from the
> > beginning "error reading inputpp namelist". I guess this is described
> > in the manual, too many processors for simple jobs.
> it should work anyway, even if it doesn't do anything in parallel.
> Does it work with the same data on one processor? if it does,
> consider the following:
> > Some implementations of the MPI library may have problems
> > with input redirection in parallel. If this happens, use the option
> > -in (or -inp or  -input), followed by the input file name.
> > Example: pw.x -in input -npool 4 > output.   
> Paolo
> --
> Paolo Giannozzi             e-mail:  giannozz at nest.sns.it
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