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Subject: Re: [OMPI users] hdf5 build error using openmpi and Intel Fortran
From: Jeff Squyres (jsquyres) (jsquyres_at_[hidden])
Date: 2010-10-08 14:45:27


We've been trying to convince people to use thewrappers unless they have a *really, really good* reason not to for years. :(

Sent from my PDA. No type good.

On Oct 8, 2010, at 1:59 PM, "Gus Correa" <gus_at_[hidden]> wrote:

> Jeff Squyres wrote:
>> On Oct 8, 2010, at 1:00 PM, Götz Waschk wrote:
>>> I have solved this problem myself. The trick is not to use the
>>> compiler wrappers but icc and ifort directly. But in that case you'll
>>> have to link to libmpi_f77 manually and set the variable RUNPARALLEL
>>> to a working mpirun command.
>> Strange.
>> Be sure to see: http://www.open-mpi.org/faq/?category=mpi-apps#cant-use-wrappers
> Hi Jeff
>
> Sadly, it is not only HDF5.
>
> There are several public domain parallel programs which we use here
> that refuse to build using the mpi wrappers (from OpenMPI,
> MPICH2, or MVAPICH2), and require the same "deconstruction"
> of configuration and make files that Gotz probably had to face.
>
> Typically the Makefiles have hardwired items that cannot be overridden (e.g. -lmpich for the MPI library name passed to the linker,
> compiler options and flags that are vendor-specific, logic that
> separates MPI, OpenMP, and serial compilation, etc).
> I have used the FAQ link you sent many times in this regard.
>
> I would guess that even more than the end users of MPI,
> it is the developers of public domain software
> (and of software projects funded by public grants)
> who need to be convinced that the right thing
> to do is to ensure that MPI wrappers will compile their
> software without problems.
>
> My $0.02
> Gus Correa
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