[mvapich-discuss] deadlock with g95/gfortran

Aliva Pattnaik aliva at gatech.edu
Tue Mar 6 17:01:05 EST 2007


Hi Shaun,

I am now able to run the fortran examples using gfortran after setting the
environment variable as suggested by you:

setenv GFORTRAN_UNBUFFERED_ALL y

Thsnks a lot for your help,
Aliva


Quoting Shaun Rowland <rowland at cse.ohio-state.edu>:

> Aliva Pattnaik wrote:
> > Hi,
> >
> > I am trying to run the fortran example problem(fpi.f) that comes with
> mvapich2-
> > 0.9.8. I am using g95 to compile it. But while running it with mpiexec its
> > getting deadlock, though in the "Top" output I can see the processes taking
> 99%
> > of CPU time. The same situation is arising while using gfortran. But I am
> able
> > to run c example problems compiled with gcc, successfully.
> >
> > The cluster that I am using is 64 bit AMD opteron with infiniband.
> >
> > I will really appreciate if someone can help me in fixing this problem.
> >
> > Thank you very much for your help,
> > Aliva
>
> Could you also please try setting this environment variable first:
>
> export GFORTRAN_UNBUFFERED_ALL=y
>
> It seems this fixes the issue.
> --
> Shaun Rowland	rowland at cse.ohio-state.edu
> http://www.cse.ohio-state.edu/~rowland/
>


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