MPICH vs. AIX-MPI on frost?

[Rob Ross]

Sounds like you figured it out John.  Oops!

Rob

On Wed, 23 Jul 2003, John Tannahill wrote:

> More info on my problem.  There are two libraries that are put
> together in src/lib:  libpnetcdf.a and libnetcdf.a.  It appears
> that libnetcdf.a has all of the nfmpi_xxx routines in it.  My
> guess is that somehow this libnetcdf.a library should actually
> be part of the libpnetcdf.a library, then I believe I would
> have all the routines I need to link with.  I think that there
> was a name change a while back when libnetcdf.a got switched to
> libpnetcdf.a?  Maybe a netcdf didn't get changed to a pnetcdf
> somewhere where it needed to be?
> 
> Regards,
> John
> 
> John Tannahill wrote:
> > Tyce,
> > 
> > Actually, I am now running the parallel-netcdf code on an IBM SP at
> > NERSC (seaborg).  I don't believe that mpich is being used at all.
> > I run on seaborg because I can easily get interactive time, which I
> > don't think that I can get on frost.  Anyway, you missed out on some
> > of my previous messages, so I will try to bring you up to date.  The
> > C interface seems to work fine.  I put together a test code in C and
> > it compiled, linked, and ran.  I then converted this test code to F90.
> > I have gotten this version to compile, but it won't link because it
> > can't find any nfmpi_xxx routines in the library (the C code uses
> > ncmpi_xxx routines and they are there).  So the question seems to be
> > how to build the library so that the nfmpi_xxx routines are there?
> > Perhaps you have some experience with autoconf and can figure out
> > what needs to be done?
> > 
> > Earlier today, I contacted the one other person that apparently had
> > some interest in trying the Fortran interface a couple of months ago
> > (Troy Baer at the OSC), but it now appears that we may be the first
> > real users (i.e., it's a little unclear, but I believe that Troy is
> > still trying to carve out some time to investigate it).  I am sure
> > the ANL/Northwestern people are trying to track things down as well.
> > It's certainly possible that it may be something quite simple that
> > I am just missing.  I did try the --with-fortran=yes flag when
> > running configure, but that did not seem to help.  I have not been
> > able to look at things much today, but will get back into now.
> > 
> > Regards,
> > John
> > 
> > 
> > JB Gallagher wrote:
> > 
> >> All,
> >>
> >> Just to let you know I just built and installed parallel-netcdf-0.8.4 
> >> and built
> >> the benchmark code against it and it ran fine, so for me anyway the 
> >> tar ball
> >> from the MCS website works the same way. Again I only tested the 
> >> C-interface
> >> though, I don't use any fortran for the i/o. When I first installed 
> >> netcdf on
> >> frost I had some mixing of the libraries that caused errors when my 
> >> code ran, I
> >> didn't save the output of these errors however, but they were a result of
> >> having mpich in the mix.
> >>
> >> So I was able to build the pnetcdf code off of the mcs website the 
> >> same way I
> >> said before, I set all the compiler envirnment variables to the normal
> >> compilers (xlc etc..) and then ran configure like so: ./configure
> >> --prefix=<dir> --with-mpi=/usr/local/tools/mpich/mpich-1.2.5mpl
> >>
> >> then I edited macros.make  and replaceed all compiler variables 
> >> (especially
> >> mpich ones) with the newmp ones (xlc , newmpcc etc..)
> >>
> >> This creates a library that is linked to the AIX mpi implementation.
> >>
> >> --Brad
> >>
> >>
> >> Rob Ross wrote:
> >>
> >>
> >>> There's no reason that I know of why it wouldn't work with IBM's MPI;
> >>> Brad, do you have any input on this?
> >>>
> >>> Thanks,
> >>>
> >>> Rob
> >>>
> >>> On Wed, 23 Jul 2003, Tyce Mclarty wrote:
> >>>
> >>>
> >>>> Rob,
> >>>>
> >>>> I'm trying to help John Tannahill get the PnetCDF going here on his 
> >>>> code.
> >>>> Looking at the README.frost in the latest release, it looks like he 
> >>>> may be
> >>>> mixing mpich and IBM libraies.
> >>>>
> >>>> When you ran tests on frost, did you use mpich?
> >>>>
> >>>> Is there any reason it should not work with IBM's MPI?
> >>>>
> >>>> Thanks,
> >>>> Tyce
> >>>
> >>>
> >>
> >>
> > 
> > 
> 
> 
> -- 
> ============================
> John R. Tannahill
> Lawrence Livermore Nat. Lab.
> P.O. Box 808, M/S L-103
> Livermore, CA  94551
> 925-423-3514
> Fax:  925-423-4908
> ============================
> 
>