Re: [Starpu-devel] Issue with lws

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

Samuel Thibault, le ven. 14 sept. 2018 18:09:35 +0200, a ecrit:
> Mathieu Faverge, le ven. 14 sept. 2018 11:13:45 +0200, a ecrit:
> > When I'm lucky, I got this assert:
> > simple: core/dependencies/implicit_data_deps.c:446:
> > _starpu_release_data_enforce_sequential_consistency: Assertion
> > `task_dependency_slot->task == task' failed.
> 
> This could look as if the same task gets executed twice, i.e. lws
> wouldn't lock properly when stealing. I have added assertions on task
> execution status in the 1.2 branch, could you try it?

To confirm that it's stealing which goes wrong, you could disable it by
making the select_victim() function in
src/sched_policies/locality_work_stealing_policy.c
just return -1;

Samuel