[petsc-users] petsc externalpackage directory

[Satish Balay]

On Tue, 2 Feb 2016, Xiangdong wrote:

> On Tue, Feb 2, 2016 at 2:27 PM, Satish Balay <balay at mcs.anl.gov> wrote:
> 
> > On Tue, 2 Feb 2016, Barry Smith wrote:
> >
> > >
> > > > On Feb 2, 2016, at 9:21 AM, Xiangdong <epscodes at gmail.com> wrote:
> > > >
> > > > the package is untar and compiled in $PETSC_ARCH/externalpackages, but
> > the original tarball .tar file is deleted. Is it correct?
> > >
> > >    Yes
> > >
> > >   When you ran the successful configure it printed to the screen where
> > the tar file came from. You should use curl or wget to get the tarball and
> > then copy it over to the machine you want it on.
> >
> >
> > Or you can copy the whole '$PETSC_ARCH/externalpackages' dir over to
> > this other machine [and place in the same location - for any
> > PETSC_ARCH you plan to use..]
> >
> 
> If I have 15 packages to install, this method would be easy. Once I copied
> this folder to the new machine, do I use
> --with-pastix-dir=$PETSC_ARCH/externalpackages/pastix_5.2  or
> --download-pastix=$PETSC_ARCH/externalpackages/pastix_5.2? The first may
> fail due to the different libraries installed on that machine. For the
> second one, can --download-pastix take the directory path instead of the
> tarball file?

If you already have $PETSC_ARCH/externalpackages/pastix_5.2 - then you would use:

--download-pastix=1

configure first checks if the package is already downloaded or not:
- if found [in $PETSC_ARCH/externalpackages/] - it goes ahead and uses it.
- if not found - it attempts to downlaod and extract in $PETSC_ARCH/externalpackages/

Satish