Re: [Starpu-devel] pheft problem?

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

Hello,

It seems nobody had a look at this issue.

Miguel Palhas, le Tue 13 Aug 2013 09:32:27 +0200, a écrit :
>     When using pheft on my algorithm, i have a problem with a specific task,
>     which hangs the scheduler as soon as it's sampling information has 10
>     executions
> 
> This only happens when i set the codelet for that task to use only 
> STARPU_CUDA
> (while it depends on data that is ALWAYS executed on a CPU task)

>     Is this a bug with the pheft scheduler?

Possibly.  I have however just added a testcase
(tests/parallel_tasks/cuda_only), it does finish fine. How are you
specifying CUDA only, through where or through can_execute? (the latter
was buggued for pheft, I have just fixed it).

Could you take a gdb thread apply all bt trace, so we get an idea of
what it is stuck on?

Samuel