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

[Satish Balay]

>>>>
Executing: mpicc --version
stdout:
clang version 12.0.1
Target: arm64-apple-darwin20.0.0
Thread model: posix
InstalledDir: /Users/kongf/mambaforge3/envs/moose-mpich/bin
<<<<<<

Ah yes - Moose doesn't use xcode compilers [or libraries..]

Does download-openblas also fail?

Satish

On Tue, 19 Jul 2022, Satish Balay via petsc-dev wrote:

> 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>
> > >
> > >
> > 
>