The deal.II tutorial step-75: parallel hp-adaptive multigrid methods for the Laplace equation
Solving the Laplace equation on hp-adaptive meshes with MatrixFree methods on thousands of processes.
Codes
hpbox - sandbox for hp-adaptive methods
This program is used as a benchmark to demonstrate the benefits of parallelization, hp-adaptive methods and matrix-free methods combined.
deal.II - an open source finite element library
A C++ software library supporting the creation of finite element codes and an open community of users and developers.