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PDC-support / introduction-to-mpi

Software Carpentry style introduction to MPI
https://pdc-support.github.io/introduction-to-mpi
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"bad parallel algorithm" in section 2 is actually not bad #28

Closed wikfeldt closed 4 years ago

wikfeldt commented 4 years ago

the numbers in the "numbers" list can be split over ranks and the chunks individually summed. It's bad for OpenMP but not MPI. We need another "bad" example

wikfeldt commented 4 years ago

thanks to Ronald for noticing this