dorsal team mailing list archive

["Garth N. Wells" <gnw20@xxxxxxxxx>]

On Mon, 2010-08-23 at 14:00 +0530, Harish Narayanan wrote:
> On 8/23/10 1:57 PM, Garth N. Wells wrote:
> > On Mon, 2010-08-23 at 13:51 +0530, Harish Narayanan wrote:
> >> On 8/23/10 1:49 PM, Garth N. Wells wrote:
> >>> On Mon, 2010-08-23 at 13:46 +0530, Harish Narayanan wrote:
> >>>> On 8/23/10 1:06 PM, Anders Logg wrote:
> >>>>> On Mon, Aug 23, 2010 at 10:27:37AM +0530, Harish Narayanan wrote:
> >>>>>> There now exist four petsc packages in the dorsal repository:
> >>>>>>
> >>>>>> petsc
> >>>>>> petscextra
> >>>>>> petscminimal
> >>>>>> petscwithoutmpi
> >>>>>>
> >>>>>> I would these to be streamlined into two primary ones.
> >>>>>>
> >>>>>> petscextra           => (new) petsc
> >>>>>> petscminimal + petsc => (new) petsccore
> >>>>>> petscwithoutmpi      => (remove, along with support for xp)
> >>>>>
> >>>>> Sounds good.
> >>>>>
> >>>>> The problem before was that some platforms seemed to be ok with adding
> >>>>> UMFPACK (which is really needed or else we don't have a direct solver)
> >>>>> while there were still some that had to do without.
> >>>>>
> >>>>> I assume we can have petsc on all platforms except Mac where we need
> >>>>> petsccore since the Fortran support in OpenMPI is missing.
> >>>>
> >>>
> >>> This is a pretty serious omission in the OpenMPI package. Surely someone
> >>> has fixed this on the MacPorts side? I see that the package has some
> >>> variants - could it be a case of installing the gfortran package before
> >>> installing OpenMPI?
> >>
> >> I will not fix this. Yes, you can use OpenMPI stuff from MacPorts, but
> >> then you are ignoring the existing buildchain on the machine almost
> >> entirely.
> >>
> > 
> > I thought we were using MacPorts - does OSX come with MPI? Is that the
> > one that points to gcc 4.0?
> > 
> > I don't understand the point on the buildchain.
> 
> Yes, OS X comes with MPI. That's the one that points to gcc4.2 on Snow
> Leopard and gcc4.0 on Leopard.
> 
> The point is that (retarded as they are), you have Apple-blessed
> versions of Python, OpenMPI, GCC, X etc. as part of the OS. When one
> insists on doing everything from MacPorts, you bypass this existing set
> of tools entirely.
> 

Which one will probably want to do if they ship such old versions of gcc
and their MPI doesn't support Fortran ;). Sounds a bit like RHEL.

Garth

> Harish