PUML2

A Parallel Unstructured Mesh Library optimized for reading large unstructured meshes, version 2.

PUML2 is a parallel reader for large unstructured meshes. Currently, it supports meshes stored in HDF5, described by the XDMF format. PUML2 reads meshes in $\mathcal{O}(n + m/n)$ and requires $\mathcal{O}(n + m/n)$ memory per MPI process where $n$ is the total number of processes and $m$ the number of elements. The current implementation is limited to tetrahedral meshes but the code is prepared to support hexahedral meshes as well.

PUML2 is a C++ header-only library written in C++17. You simply copy the header files into your project and start using it.