[petsc-dev] including PETSc4py (and Tao4py) inside PETSc repository

[Lisandro Dalcin]

On 23 October 2015 at 06:30, Barry Smith <bsmith at mcs.anl.gov> wrote:
>
>> On Oct 22, 2015, at 10:24 PM, Satish Balay <balay at mcs.anl.gov> wrote:
>>
>> As I said - depending on the precondition for how tightly petsc &
>> petsc4py should be synced - we can choose the appropriate model.
>>
>> [for the metioned precondition - I was suggestion the model].
>>
>> As you say - the initilal phrasing is wrong - so the model is not
>> suitable.
>>
>> A single repo does make it easy for 'all feature branches' to be in
>> sync..
>>
>> In that model with-petsc4py=1 would be the default. However anyone
>> changing the petsc UI would also have to update petsc4py with the
>> change.. [and Lisandro says - that change could be buggy - and he
>> would like to review it -before its applied]
>
>    Just like Jed was going to review everything anybody put into PETSc before it got into master. That is just unrealistic and won't last long. Better to just have a good test suite.
>

OK, Barry, I very much understand all your concerns. My opposition to
incorporate petsc4py within petsc is not strong. I agree maintenance
and contribution will be much easier, my concern is just about adding
more and more stuff to the PETSc repo  year over year. If for the case
of petsc4py you think that is not a big issue, then I have to trust
you, it is not easy to catch you on the wrong side ;-).

BTW, I no longer care about keeping petsc4py compatible with previous
PETSc releases. While such approach is workable for pure C code (like
in PetIGA), things get complicated when you add Cython to the stack.

So, let's go ahead and do the merge.




-- 
Lisandro Dalcin
============
Research Scientist
Computer, Electrical and Mathematical Sciences & Engineering (CEMSE)
Numerical Porous Media Center (NumPor)
King Abdullah University of Science and Technology (KAUST)
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