[petsc-users] pseudo-transient ?

[Jed Brown]

src/ts/examples/tutorials/ex26.c solves the same problem as that (since
removed) src/snes/examples/tutorials/ex27.c referenced in the Coffey
paper.

Unfortunately, there is still a dangling reference from the TS example
that needs to be fixed.

Note that there is a slight mistake in the paper -- they describe the
algorithm as linearly implicit but the numerical results were created
using nonlinearly implicit Euler.  The algorithm as described is more
efficient and the default using TSPSEUDO in the TS example.  If you want
to reproduce the numerical results, you'll have to change the SNES to
converge the nonlinear solve instead of just the first step.

"Smith, Barry F." <bsmith at mcs.anl.gov> writes:

>   That example has not likely existed for many year. You can use src/ts/examples/tutorials/ex1.c as a starting point.
>
>
>
>> On Feb 6, 2018, at 3:31 PM, Mohammad Hassan Baghaei <mhbaghaei at mail.sjtu.edu.cn> wrote:
>> 
>> Hi
>> I wanted to use my solve the system of equation using pseudo-transient continuation. I found that we can refer to this version for driven cavity example. However, I could not find it within files                                           (src/snes/examples/tutorials/ex27.c). Would it be possible for you to share this file? 
>> Thanks
>> Amir