[Wien] Problems with mpi for Wien12.1

[Laurence Marks]

Hmmm. I was hoping for something human readable like a traceback showing
where it died. Please check both the lapw0.error files and case.dayfile to
see if they gave anything useful. Also, what are the last few lines of
case.output0000?

You may get somewhere by running the mpirun command by hand, I have seen
this help. If you understand csh then you want to add an echo $tt at the
relevant location in lapw0para.

If not you can change the first line of lapw1para to "-xf" rather than just
"-f". Then do x lapw0 -p again. You will get a hundred or so lines of
output one of which towards the end will be something like

"mpirun -np 12 ..."

Then paste this line by itself in a terminal. Maybe then something human
readable will emerge.

Unfortunately debugging mpi is not trivial, and a SIGSEV can also be non
trivial as the error may not appear at the right place, making life more
fun.

Do you gave totalview or a similar mpi debugger available? You can get a
demo version of totalview free for I believe 30 days.

---------------------------
Professor Laurence Marks
Department of Materials Science and Engineering
Northwestern University
www.numis.northwestern.edu 1-847-491-3996
"Research is to see what everybody else has seen, and to think what nobody
else has thought"
Albert Szent-Gyorgi
 On Aug 28, 2012 10:09 PM, "Paul Fons" <paul-fons at aist.go.jp> wrote:

>  I compiled fftw3 using the Intel suite as well.  The appropriate line
> from config.log reads
>
> ./configure CC=icc F77=ifort MPICC=mpiicc --prefix=/opt/local --enable-mpi
> --enable-threads --prefix=/opt/local/fftw3
>
>  I note that the configuration file only calls for a mpicc compiler (and
> I used the Intel compiler) and not a fortran compiler.   The compiled code
> (mpi-bench does work fine with the Intel mpirun).
>
>
>  After commenting out the call W2kinit subroutine and recompiling lapw0
> (via the siteconfig script), I attempted to run run_lapw in both serial and
> parallel forms as you can see below.  The serial form worked fine
>
>  Paul
>
>  matstud at ursa:~/WienDisk/Fons/GaAs> run_lapw
>  LAPW0 END
>  LAPW1 END
>  LAPW2 END
>  CORE  END
>  MIXER END
> ec cc and fc_conv 1 1 1
>
>  >   stop
>
>
>  matstud at ursa:~/WienDisk/Fons/GaAs> run_lapw -p
> forrtl: severe (174): SIGSEGV, segmentation fault occurred
> forrtl: severe (174): SIGSEGV, segmentation fault occurred
> forrtl: severe (174): SIGSEGV, segmentation fault occurred
> forrtl: severe (174): SIGSEGV, segmentation fault occurred
> forrtl: severe (174): SIGSEGV, segmentation fault occurred
> forrtl: severe (174): SIGSEGV, segmentation fault occurred
> forrtl: severe (174): SIGSEGV, segmentation fault occurred
> forrtl: severe (174): SIGSEGV, segmentation fault occurred
> forrtl: severe (174): SIGSEGV, segmentation fault occurred
> forrtl: severe (174): SIGSEGV, segmentation fault occurred
> forrtl: severe (174): SIGSEGV, segmentation fault occurred
> forrtl: severe (174): SIGSEGV, segmentation fault occurred
>
>  >   stop error
>
>
>
>  On Aug 28, 2012, at 9:16 AM, Laurence Marks wrote:
>
>  One suggestion: comment out the line towards the top of lapw0.F
>
>      call W2kinit
>
> You should get a more human readable error message.
>
> As an addendum, was fftw3 compiled with mpiifort? I assume from your email
> that it was, just checking.
>
> N.B., there is a small chance that this will hang your computer.
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>
>   Dr. Paul Fons
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>
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>
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