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Rethink/Fixing task number max. #164

Closed twittidai closed 6 years ago

twittidai commented 6 years ago

This small number does not work on large machines

twittidai commented 6 years ago

@weidendo There is obviously a data structure using (rank-1) reduction/halo in laik-lulesh. Amir will have a look in that. Keeping this until then open.

weidendo commented 6 years ago

Merged.

Seems a bit excessive to me, as typically, a process communicates data either to a small number of neighbors or to everybody. For the latter, a special case is used. However, with transition to a shrinked group, we may have "all but a few", which the special case cannot cover, but resulting in a large list. We may want to use some compression to make this scalable.

But for now, let's go for the easy way.