<snip> On Tue, 3 Jul 2018 at 09:31, Charles R Harris <charlesr.har...@gmail.com> wrote:
> > ISTR that some parallel processing applications sent pickled arrays around > to different processes, I don't know if that is still the case, but if so, > no copy might be a big gain for them. > That is very much correct. One example is using MCMC, which is massively parallel. I do parallelisation with mpi4py, and this requires distribution of pickled data of a reasonable size to the entire MPI world. This pickling introduces quite a bit of overhead.
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