[petsc-users] osx error

[Satish Balay]

Mark,

Can you elaborate?

First you tried the change to /etc/hosts. Did it not work? What do you have for:

cat /etc/hosts

And after that configure still gave errors for ping test - but by disabling it in MPI.py - now the tests work? eventhough ping test fails?

So this is a false positive for you? [i.e the configure tests fails but MPI works?]

Satish

On Thu, 17 Sep 2020, Mark Adams wrote:

> On Thu, Sep 17, 2020 at 6:00 PM Satish Balay <balay at mcs.anl.gov> wrote:
> 
> > But would really like to know if the test is a false positive.
> >
> 
> I did the MPI.py fix and that worked.  And make check worked.

On Thu, 17 Sep 2020, Mark Adams wrote:
>
> Well, I did your fix and am configuring now.
> 
> 
> >
> > Satish
> >
> > On Thu, 17 Sep 2020, Satish Balay wrote:
> >
> > > Here is a fix:
> > >
> > > echo 127.0.0.1 `hostname` | sudo tee -a /etc/hosts
> > >
> > > Satish
> > >
> > > On Thu, 17 Sep 2020, Matthew Knepley wrote:
> > >
> > > > We should have an option to disable the test.
> > > >
> > > >    Matt
> > > >
> > > > On Thu, Sep 17, 2020 at 5:31 PM Satish Balay via petsc-users <
> > > > petsc-users at mcs.anl.gov> wrote:
> > > >
> > > > > On Thu, 17 Sep 2020, Mark Adams wrote:
> > > > >
> > > > > > I rebased over master and started getting this error.
> > > > > > I did reinstall MPICH (brew) recently.
> > > > > > Any ideas?
> > > > > > Thanks,
> > > > > > Mark
> > > > >
> > > > >
> > > > >
> > -------------------------------------------------------------------------------
> > > > > Exception: Your hostname will not work with MPI, perhaps you have VPN
> > > > > running whose network settings may not play well with MPI or your
> > network
> > > > > is misconfigured
> > > > >
> > > > >
> > *******************************************************************************
> > > > >
> > > > >
> > > > > Ok - this is a new test that got added to check for broken network
> > that
> > > > > breaks MPI.
> > > > >
> > > > > Here is the check:
> > > > >
> > > > > Executing: ping -c 2 MarksMac-302.local
> > > > >
> > > > > The check says you have broken network settings. [as its not
> > responding to
> > > > > ping.]
> > > > >
> > > > > Does MPI work fine on this box? You can try disabling this check
> > > > > (manually) - and do the build, and run
> > > > >
> > > > > Does MPI run fine?
> > > > >
> > > > > Satish
> > > > >
> > > > >
> > > > > >>>>>>>>>>>
> > > > >
> > > > > diff --git a/config/BuildSystem/config/packages/MPI.py
> > > > > b/config/BuildSystem/config/packages/MPI.py
> > > > > index 2e130fdcfe..8464de6773 100644
> > > > > --- a/config/BuildSystem/config/packages/MPI.py
> > > > > +++ b/config/BuildSystem/config/packages/MPI.py
> > > > > @@ -267,7 +267,7 @@ shared libraries and run with
> > > > > --known-mpi-shared-libraries=1')
> > > > >                if ret != 0:
> > > > >                  raise RuntimeError(errormessage+" Return code %s\n"
> > % ret)
> > > > >              except:
> > > > > -              raise RuntimeError("Exception: "+errormessage)
> > > > > +              pass
> > > > >            else:
> > > > >              self.logPrint("Unable to get result from hostname,
> > skipping
> > > > > ping check\n")
> > > > >
> > > > >
> > > >
> > > >
> > >
> > >
> >
> >
>