Re: [Starpu-devel] [selective access mode setting]

[Samuel Thibault <samuel.thibault@inria.fr>]

Maxim Abalenkov, le jeu. 06 sept. 2018 17:06:31 +0100, a ecrit:
> Pass the first and the last data handles with STARPU_RW access modes and all
> the intermediate handles as the normal STARPU_VALUE without any dependence
> tracking. Would that work?
> 
> My mission is to simplify the DAG. I feel/believe too many (unnecessary)
> dependencies slow down my code.

If the goal is to drop dependency tracking, you can simply disable
sequential consistency  for these data with
starpu_data_set_sequential_consistency_flag.

Normally, dependency tracking uses O(1) algorithms so it shouldn't be
too costly, but it's not harm checking if that's the case :)

Samuel