Re: [Starpu-devel] How to wait for a subset of the tasks to complete

[Samuel Thibault <samuel.thibault@ens-lyon.org>]

Benoît Lizé, le Mon 30 Sep 2013 14:24:33 +0200, a écrit :
> Is it possible to mix implicit and explicit dependencies in the same 
> program ?

Yes. Implicit dependencies are actually internally expressed through
explicit dependencies in StarPU.

> Is there a better way, one that would not prevent me from using
> starpu_insert_task() for t1, ..., tn ?

The just-commited starpu_init_task() could actually be useful for you
as well: you can add dependencies on the task.

> Are there performance penalties
> associated with each approach ?

They should have more or less the same cost, which is to build the list
of tasks you'll be depending on.

Samuel