1 research outputs found
Hardware locality-aware partitioning and dynamic load-balancing of unstructured meshes for large-scale scientific applications
We present an open-source topology-aware hierarchical unstructured mesh
partitioning and load-balancing tool TreePart. The framework provides powerful
abstractions to automatically detect and build hierarchical MPI topology
resembling the hardware at runtime. Using this information it intelligently
chooses between shared and distributed parallel algorithms for partitioning and
load-balancing. It provides a range of partitioning methods by interfacing with
existing shared and distributed memory parallel partitioning libraries. It
provides powerful and scalable abstractions like one-sided distributed
dictionaries and MPI3 shared memory based halo communicators for optimising HPC
codes. The tool was successfully integrated into our in-house code and we
present results from a large-eddy simulation of a combustion problem