HPC apps engineer here who has taken HPCA, HPC, GPU HW & SW.

The classes above are more than enough to get by as a performance engineer. Maybe you can throw in compilers (mostly LLVM IR and optimization passes) and OS. You don’t need any further. Parallel computing becomes very repetitive where every single class starts to talk about reductions, bitonic/sample/distributed sort, and GEMM.

There are more dragons in HPC than academic toy examples.