search

Parallel-in-Time / pySDC

pySDC is a Python implementation of the spectral deferred correction (SDC) approach and its flavors, esp. the multilevel extension MLSDC and PFASST.
http://www.parallel-in-time.org/pySDC
BSD 2-Clause "Simplified" License
32 stars 35 forks source link

How to use pySDC with Fenics? #379

Open zhyxue0 opened 10 months ago

zhyxue0 commented 10 months ago

Hello, everyone! I am a newer on pySDC. I notice that pySDC works with FEniCS, mpi4py-fft and PETSc (through petsc4py). Which versions of Fenics are compatible? Are there any examples of using it with Fenics? Is it suitable for firedrakes like Fenics?

Thanks a lot!

pancetta commented 10 months ago

Hi @zhyxue0, thanks for your inquiry. pySDC currently supports FEniCS 2019.x, not the new version which is currently being developed. I tested using FEniCSx a few months ago and for simple algorithms (like SDC) this seems to work. For multilevel algorithms like MLSDC or PFASST they were still missing interpolation operators and I could not figure out a way to get this to work. This may have changed since then, though.

To see how pySDC works with FEniCS 2019, see the corresponding tutorial.

Concerning firedrake: this does not work out of the box and probably also not inside the box.. I know that Jemma Shipton from Exeter and her team there played with this. She may know more about the status.