[petsc-users] set MUMPS OOC_TMPDIR

[Jeremy Theler]

I've known at least one other person that had this very same confusion.
Maybe it's worth adding Barry's explanation to the manual page:

This function can be called BEFORE PetscInitialize(), but it does not
NEED to be called before PetscInitialize(). You should be able to call
PetscOptionsSetValue() anytime you want.




On Mon, 2022-02-28 at 16:39 -0800, Sam Guo wrote:
> Yes, " This function can be called BEFORE PetscInitialize()" confused
> me. Thanks for the clarification. 
> 
> On Mon, Feb 28, 2022 at 4:38 PM Barry Smith <bsmith at petsc.dev> wrote:
> > 
> >   You should be able to call PetscOptionsSetValue() anytime you
> > want, as I said between different uses of MUMPS you can call it to
> > use different directories.
> > 
> >   Perhaps this confused you?
> > 
> >      Note:
> >    This function can be called BEFORE PetscInitialize()
> > 
> >   It is one of the very few functions that can be called before
> > PetscInitialize() but it does not NEED to be called before
> > PetscInitialize().
> > 
> >   Barry