4.1. PETSc
PETSc, the Portable, Extensible Toolkit for Scientific Computation, pronounced PET-see, is a suite of data structures and routines for the scalable (parallel) solution of scientific applications modeled by partial differential equations. It supports MPI, and GPUs through CUDA, HIP or OpenCL, as well as hybrid MPI-GPU parallelism; it also supports the NEC-SX Tsubasa Vector Engine. (来自官网介绍)
参考资料：
Ed Bueler, PETSc for Partial Differential Equations: Numerical Solutions in C and Python
bueler/p4pdes: C and Python examples from my book on using PETSc