Re: [Starpu-devel] Performance issue of StarPU on Intel self-hosted KNL

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

Olivier Aumage, on mar. 19 sept. 2017 16:31:36 +0200, wrote:
> Thus, this strongly suggests that the Plasma+StarPU execution suffers from 
> lack of parallelism. This lack of parallelism is likely due to the lack of 
> priorities to guide the execution over the critical path.

Ok. Perhaps the fact that other runtimes have better performance is e.g.
left-looking vs right-looking, and changing a few things inside StarPU
schedulers to change task order could help. For now we just take tasks
in the order they are submitted and released, that's not necessarily the
best one for locality and for parallelism.

Samuel