doesn't matter. the issues you raise are abstractable at the language level, or maybe even the runtime. unfortunately there are others like which of the many ki

doesn't matter. the issues you raise are abstractable at the language level, or maybe even the runtime. unfortunately there are others like which of the many kinds of parallelism to use (ILP, thread, vector/SIMD, distributed memory with much lower performance, etc.) that are harder to hide behind a compiler with acceptable performance.