Thanks.
Note that us removing the “simple minded” AD stuff from PETSc doesn’t mean
we think AD is a bad idea. It can be an effective way to generate Jacobians.
Barry
On Oct 1, 2014, at 4:09 PM, Gaetan Kenway wrote:
> HI Xiangdong
>
> We have use the Tapenade AD package to compute sp
HI Xiangdong
We have use the Tapenade AD package to compute sparse matrix jacobians for
CFD problems. We use the result from the AD to populate a PETSc sparse
matrix and then use PETSc to solve the resulting linear system.
Hope that helps.
Gaetan
On Wed, Oct 1, 2014 at 4:23 PM, Barry Smith wro
On Oct 1, 2014, at 3:16 PM, Jed Brown wrote:
> Xiangdong 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 su
Xiangdong 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 cleane
Is there any reason that AD is not supported in PETSc? Is it because the
ADIFOR/ADIC library itself?
Thank you.
Xiangdong
On Wed, Oct 1, 2014 at 4:09 PM, Barry Smith wrote:
>
>
> Sorry that functionality is no longer in PETSc.
>
>
> On Oct 1, 2014, at 2:51 PM, Xiangdong wrote:
>
> > Hello e
Sorry that functionality is no longer in PETSc.
On Oct 1, 2014, at 2:51 PM, Xiangdong wrote:
> Hello everyone,
>
> Could you please point me to examples of using automatic differentiation for
> Jacobian calculation in PETSc? Chapter 9 of the manual briefly talked about
> adifor, but seem
Hello everyone,
Could you please point me to examples of using automatic differentiation
for Jacobian calculation in PETSc? Chapter 9 of the manual briefly talked
about adifor, but seems not quite complete.
Thank you.
Xiangdong
