But I can read C fine, so the example was easy to follow. It is written in C, which is good for folks writing C, but I’m interested in porting some Fortran codes so “an exercise for the student” in that language. But if you can’t accept a few odd pronoun usages and one or two number conflicts, you ought not be speaking English anyway as there are at least a half dozen major variants.
I think it may be Indian Standard English. There’s a little bit of “accent” to his English. Not a lot of “magic hand-waving” you must work out. The author takes the time to be patient and complete. Despite being comprehensive, the example is very easy to follow and “why” is clear at each step.
#Install openmp and openmpi how to#
Covers an actual port of code, how to find optimization candidates, and has everything you need to do the same. Pi specifically, so any “Pi-isms” would have surfaced. This was the first one I ran into, and I like it.
#Install openmp and openmpi code#
BUT, to write code and have it work correctly takes a much better understanding. It runs on compiler pragma statements so it’s relatively easy to look at some code and have a decent idea what it is doing, even if you don’t know OpenMP in any detail. I’ve mostly looked at MPI over the last few years. (You can use MPI inside a multi-core machine, but it isn’t as efficient as OpenMP.) OpenMPI / MPICH are oriented toward network connected systems, so pass information around in “messages” and don’t expect shared memory. OpenMP handles threads inside a multi-core processor chip with shared memory. OpenMPI, MPICH, … Then there is OpenMP that is confusingly close to OpenMPI as a printed name. Yet we still have variations of MPI Message Passing Interface. We’re already seeing some of it in “consolidation” of some versions of parallel “extensions” to various languages. Eventually the “shakeout” stage will come. It’s been a good 20 years now, since it really started taking off and now things are getting mainstream. Parallel computing is in just such a stage. (Or the monopoly or near-monopoly “industry leader” for companies). Eventually one comes to dominate and becomes the long lived tree. When things are new, a thousand sprouts form.