Re: [Starpu-devel] About dag.dot

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

Hello,

Xavier Lacoste, le Thu 13 Mar 2014 12:01:08 +0100, a écrit :
> An other question : what are sync_task_seq_cons ?

It actually comes from starpu_data_unregister.  I have now changed the
code, so that information gets propagated there.

> When generating a DAG using STARPU_GENERATE_TRACE=1 I get several separated
> trees on my plot while I'm expecting one single tree.
> Is that the normal behaviour ?

No: we're supposed to be able to track data dependencies, even when they
happen to be useless (e.g. A->B but task B was submitted after task A
finished), but perhaps there is a bug there. How are you tasks
submitted?  Would it be possible to run your application?

> A last one, I expected to see comutable task as several GEMM tasks unlocking
> one HETRF_TRSM task but this is not what I get... Is that expected ?

AIUI that should have been so, yes. I guess that might be related with
the potential bug mentioned above.

Samuel