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From: Carlo Carloni Calame (carlo.carloni.calame_at_[hidden])
Date: 2004-10-07 02:10:23


Dear Jeff,

the beta version fixes my problem.

Thanks a lot!

                 Carlo

On Wed, 2004-10-06 at 20:53, Jeff Squyres wrote:
> Looks like we goofed -- stdin redirection was accidentally disabled on
> platforms that supported file descriptor passing while we were working
> towards cygwin compatability (cygwin does not support fd passing, and
> therefore stdin for the lowest ranking process does not get stdin).
>
> 7.1.2b3 fixes this problem -- I just released it on
> http://www.lam-mpi.org/beta/.
>
> Could you give it a whirl?
>
>
> On Oct 5, 2004, at 5:29 AM, Carlo Carloni Calame wrote:
>
> > Dear Pierre,
> >
> > yes, I think it's a lam-mpi 7.1 (and 7.1.1) problem. With previous
> > versions, redirection worked fine. As you suggest, I'll try with a
> > simple C code...
> >
> > Carlo
> >
> > On Tue, 2004-10-05 at 10:51, Pierre Valiron wrote:
> >> Dear Carlo,
> >>
> >> I see nothing wrong in your your not-so-silly code.
> >>
> >> I tried it on my pc (LAM 7.0.4 + Intel Fortran) and redirection works
> >> nicely (as it should). I added
> >> write(6,*) a
> >> before the MPI_finalize and I get:
> >>
> >> $ mpirun -np 2 a.out < 1.dat
> >> 0.00000000000000D+000 (unitialized for proc 1)
> >> 3.00000000000000 (correct for proc 0)
> >>
> >> while 1.dat contains the number 3.
> >>
> >> The obvious conclusion is that the input redirect is broken on lam
> >> 7.1.1,
> >> at least for Forttran users.
> >>
> >> May be a similar test should be carried on in C (I am too old to learn
> >> this strange language) to get a further hint about the problem.
> >>
> >> Pierre.
> >>
> >>
> >>
> >> On Tue, 5 Oct 2004, Carlo Carloni Calame wrote:
> >>
> >>> Dear lam-mpi users and developers,
> >>>
> >>> I have some problems when running a program with mpirun and reading
> >>> standard input from a file. If I compile the following silly fortran
> >>> code
> >>>
> >>> program read_variable
> >>> implicit double precision (a-h,o-z)
> >>> include 'mpif.h'
> >>>
> >>> call MPI_init(ie)
> >>> call MPI_comm_rank(MPI_COMM_WORLD,myid,ie)
> >>>
> >>> if (myid.eq.0) read*,a
> >>>
> >>> call MPI_finalize(ie)
> >>> stop
> >>> end
> >>>
> >>> with the command mpif77 "mpif77 sillycode.f -o sillycode" and I give
> >>> the
> >>> commands
> >>>
> >>> echo 1 > inputfile
> >>> mpirun -np 2 ./sillycode < inputfile
> >>>
> >>> the program still waits reading from the terminal. If I understand
> >>> correctly in the mpirun man page, such a redirection can be done.
> >>> I booted lam-mpi with the command "lamboot -v lamhosts", where the
> >>> file
> >>> lamhosts contains this line "mycomputer cpu=2".
> >>
> >
> > _______________________________________________
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> >