Dear dealii community and developers, I have used dealii framework (9.3.x) a while on HPC machine. My project involves solving vector-valued nonlinear PDE with nine components. Currently, I've implemented damping newton iteration with GMRES+AMG preconditioner with MPI on distributed memory architecture.
A simple timing tells me the assembly process of system-matrix takes 99% of the whole running time in every newton iteration. I guess there are a lot of idle cpu times during assembly because I don't take advantage of thread parallelism yet. So here is my question, which tutorial steps demonstrate how to implement the mpi-thread hybrid parallelism. I've found step-48 is talking about this, but I wonder are there any other tutorial programs to look at? I also wonder if any of you guys have suggestions about mpi+thread parallelism under dealii framework? Sincerely, Timo Hyvarinen -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/dealii/CAArwj0FNpu0VusU%2BfN-tcGyJAqdU4r2Ua8vhvGu6TxbntLznBQ%40mail.gmail.com.
