Re: [Starpu-devel] Execute on 2 OpenCL devices

[Julian Holzmüller <h-julian@gmx.at>]

thx for your reply.

how can i resolve this? when i create several tasks they all were executed on only one device...

julian

2013/10/10 Samuel Thibault <samuel.thibault@ens-lyon.org>

Hello,

Julian Holzmüller, le Thu 10 Oct 2013 14:52:10 +0200, a écrit :

> Unfortunately it is only executed on one OpenCL device. The other Device is
> only waiting...
>
> It looks like this (in this case only on CPU-Device): http://imageshack.us/a/
> img21/5926/fjrz.png
>

> int ret = starpu_task_submit(task);
>
> starpu_task_wait_for_all();

> What doing i wrong? How can i manage that the program will run parallel on both
> devices? The performance is not important at this point.

You need to create several tasks. StarPU does not automatically split
OpenCL tasks, you have to submit several of them.

Samuel