PETSc fig 5 | PETSc/TAO: How to Create, Maintain, and Modernize a Numerical Toolkit throughout Decades of Supercomputer Innovations

Figure 5. Distributed star forest with associated data partitioned across three processes and with specification arrays (right). Source: https://www.researchgate.net/publication/354516510_Toward_performance-portable_PETSc_for_GPU-based_exascale_systems.