[petsc-users] examples of automatic differentiation with PETSc

[Barry Smith]

On Oct 1, 2014, at 3:16 PM, Jed Brown <jed at jedbrown.org> wrote:

> Xiangdong <epscodes at gmail.com> writes:
> 
>> Is there any reason that AD is not supported in PETSc? Is it because the
>> ADIFOR/ADIC library itself?
> 
> Those libraries are not maintained and have license problems.  You're
> welcome to use an AD tool yourself.  The support in PETSc was mostly
> just making simple examples cleaner; it wasn't widely used in real
> applications.

   Wasn’t used at all in anything but trivial codes.