[petsc-dev] external package ML and 64 bit

[Barry Smith]

   Matt,

    Please don't put such fixes into random branches you happen to be working on (like knepley/feature-parallel-configure). It is better to go directly into their only little branch.

    Your fix doesn't work. I have pushed a fix in the branch barry/error-on-64bitindices-with-ml and merged into next. Also explained why 64 bit indices with ML are not going to happen in ml.py 

   self.requires32bitint  = 1;  # ml uses a combination of "global" indices that can be 64 bit and local indices that are always int therefore it is
                                 # essentially impossible to use ML's 64 bit integer mode with PETSc's --with-64-bit-indices

   Note: also this is the "Trilinos style" of having these two kinds of indices. I debated doing this with PETSc but felt it was too complex with little payoff.

  Barry



> On Mar 5, 2015, at 11:02 AM, Matthew Knepley <knepley at gmail.com> wrote:
> 
> On Thu, Mar 5, 2015 at 11:01 AM, Barry Smith <bsmith at mcs.anl.gov> wrote:
> 
>   Matt,
> 
>    Please ALWAYS list the branch(s)/commit that you did this in when you say you "pushed a fix"
> 
> https://bitbucket.org/petsc/petsc/commits/ba4f728f6c00f645cbd73e74de34ed390600afde
> 
>   Matt
>  
>   Barry
> 
> > On Mar 5, 2015, at 9:12 AM, Matthew Knepley <knepley at gmail.com> wrote:
> >
> > I pushed a fix.
> >
> >    Matt
> >
> > On Thu, Mar 5, 2015 at 2:18 AM, Stefano Zampini <stefano.zampini at gmail.com> wrote:
> > PETSc is broken when configured with --download-ml  --with-64-bit-indices.
> > ML has support for 64 bit integers (using ML's configure flag --with-ml-64bit-integer) but one needs to specify the type of 64 bit integer (long long or long or whatever...)
> >
> > Better to turn off 64 bit builds of ML before adding support for it during configure.
> >
> >
> > Stefano
> >
> >
> >
> > --
> > What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead.
> > -- Norbert Wiener
> 
> 
> 
> 
> -- 
> What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead.
> -- Norbert Wiener