What's the deal with Deno? We talk with a major contributor to find out. Listen now.

PETSc is an open source suite of data structures and routines for the scalable (parallel) solution of scientific applications modeled by partial differential equations.

It supports MPI, shared memory pthreads, and NVIDIA GPUs, as well as hybrid MPI-shared memory pthreads or MPI-GPU parallelism. The home page is http://www.mcs.anl.gov/petsc/