n analytical one to implement.
>>
>> Best, Yi
>>
>> -Original Message-
>> From: Jed Brown
>> Sent: Wednesday, December 20, 2023 5:40 PM
>> To: Yi Hu ; petsc-users@mcs.anl.gov
>> Subject: Re: [petsc-users] fortran interface to snes matrix-fr
etsc-users@mcs.anl.gov
> Subject: Re: [petsc-users] fortran interface to snes matrix-free jacobian
>
> Are you wanting an analytic matrix-free operator or one created for you based
> on finite differencing? If the latter, just use -snes_mf or -snes_mf_operator.
>
> https://petsc.o
implement.
>
> Best, Yi
>
> -Original Message-
> From: Jed Brown
> Sent: Wednesday, December 20, 2023 5:40 PM
> To: Yi Hu ; petsc-users@mcs.anl.gov
> Subject: Re: [petsc-users] fortran interface to snes matrix-free jacobian
>
> Are you wanting an analytic matr
Dear Jed,
Thanks for your reply. I have an analytical one to implement.
Best, Yi
-Original Message-
From: Jed Brown
Sent: Wednesday, December 20, 2023 5:40 PM
To: Yi Hu ; petsc-users@mcs.anl.gov
Subject: Re: [petsc-users] fortran interface to snes matrix-free jacobian
Are you wanting
Are you wanting an analytic matrix-free operator or one created for you based
on finite differencing? If the latter, just use -snes_mf or -snes_mf_operator.
https://petsc.org/release/manual/snes/#jacobian-evaluation
Yi Hu writes:
> Dear PETSc team,
>
> My solution scheme relies on a matrix-
Dear PETSc team,
My solution scheme relies on a matrix-free jacobian in the SNES solver. I saw
the useful C interface like MatCreateSNESMF(), DMSNESCreateJacobianMF(). I am
wondering if you have the fortran equivalence?
I think for my problem in the main program I need to do
DMDASNESsetJaco
