Matrix-Free Finite-Element Computations On Graphics Processors with Adaptively Refined Unstructured Meshes
Karl Ljungkvist · 2017
This paper concerns efficient matrix-free finite-element algorithms on modern manycore processors such as graphics cards (GPUs) as an alternative to sparse matrix-vector products. In matrix-free finite element algorithms, the assembly and solution phases are merged, yielding a significantly lower memory bandwidth footprint, with a corresponding increase in efficiency on bandwidth limited processors. Additionally, no system matrix must be assembled or stored in memory.