[petsc-users] METIS double precision

[Matthew Overholt]

Thank you, Satish!  That edit was easy to make and the configured and built
library works perfectly!

Just a note for new users: the patch to metis.py does not replace the
original --download-metis=<bool> argument, but supplements it (i.e. use
both).  I made this mistake on my first try and METIS was not downloaded.

Matt Overholt



On Thu, Jan 10, 2019 at 10:35 AM Balay, Satish <balay at mcs.anl.gov> wrote:

> Well - this was the previous default - and was removed as it was deemed
> unnecessary.
>
>
> https://bitbucket.org/petsc/petsc/commits/2d4f01c230fe350f0ab5a28d1f5ef05ceab7ea3d
>
> The attached patch provides --download-metis-use-doubleprecision option
>
> Satish
>
> On Thu, 10 Jan 2019, Matthew Overholt via petsc-users wrote:
>
> > Hello,
> >
> > How does one configure the PETSc installation to download METIS and have
> it
> > use REALTYPEWIDTH 64 (as defined in metis.h)?  I am using:
> >
> > --with-64-bit-indices --download-metis=yes
> >
> > to get IDXTYPEWIDTH 64.  If I were installing METIS independently I would
> > set the following near the top of metis.h:  #define
> > METIS_USE_DOUBLEPRECISION
> >
> > The reason for this is I want to call METIS routines outside of PETSc and
> > prefer double precision.
> >
> > Thanks,
> > Matt Overholt
> > CapeSym, Inc.
> >
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20190110/87d9750c/attachment.html>