[petsc-dev] ld: warning: could not create compact unwind for _dgeev_: registers 27 and 28 not saved contiguously in frame

[Satish Balay]

Barry,

Which commit in 3.17 fixed this?

Fande,

If I add a patch to branch "release-3.16" - would that get used? [as there won't be any new 3.16 tarballs]

BTW: Any particular reason to use fblaslapack - instead of [default] veclib on Mac?

Satish


On Tue, 19 Jul 2022, Fande Kong wrote:

> Hi Barry,
> 
> It would be nice if we could get this patch to PETSc-3.16.
> 
> We will upgrade to PETSc-3.17 for sure but it will take a while
> 
> Fande
> 
> On Tue, Jul 19, 2022 at 11:59 AM Barry Smith <bsmith at petsc.dev> wrote:
> 
> >
> >   I think we have a fix for this in the 3.17 release. Perhaps Satish could
> > stick this line into the 3.16 release/tag for its users?
> >
> >   Barry
> >
> >
> > > On Jul 19, 2022, at 1:48 PM, Fande Kong <fdkong.jd at gmail.com> wrote:
> > >
> > > Hi PETSc team,
> > >
> > > We had trouble when compiling fblaslapack on Apple M1.  We could get
> > around this issue by using the following patch, but do not really know
> > whether or not it is the right way to fix this issue.
> > >
> > >  petsc % git diff
> > >
> > > diff --git a/config/BuildSystem/config/framework.py
> > b/config/BuildSystem/config/framework.py
> > > index 5b210ebb58..0ce27ef06d 100644
> > > --- a/config/BuildSystem/config/framework.py
> > > +++ b/config/BuildSystem/config/framework.py
> > > @@ -554,6 +554,7 @@ class Framework(config.base.Configure,
> > script.LanguageProcessor):
> > >        lines = [s for s in lines if s.find(' was built for newer macOS
> > version') < 0]
> > >        lines = [s for s in lines if s.find(' was built for newer OSX
> > version') < 0]
> > >        lines = [s for s in lines if s.find(' stack subq instruction is
> > too different from dwarf stack size') < 0]
> > > +      lines = [s for s in lines if s.find('could not create compact
> > unwind') < 0]
> > >        # Nvidia linker
> > >        lines = [s for s in lines if s.find('nvhpc.ld contains output
> > sections') < 0]
> > >        if lines: output = '\n'.join(lines)
> > >
> > >
> > > Please check the log file to have more details of failing messages.
> > >
> > >
> > > Thanks,
> > >
> > > Fande
> > > <configure.log>
> >
> >
>