Re: [Starpu-devel] Problems using parallel tasks

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

Miguel Palhas, le Wed 05 Jun 2013 12:24:36 +0100, a écrit :
> I hadn't read that part yet, but i was indeed trying to run this code with:
> 
> STARPU_SCHED=pheft ./a.out
> 
> And i would expect it to try to run the task first with 1 thread, and scale 
> in
> future invocations. So i would expect that multiple invocation of the call()
> function in my example would try to use different worker sizes right?

Yes, but StarPU does not rely on just one task duration measurement, it
waits for _STARPU_CALIBRATION_MINIMUM 10 measurements.

> After reading that paragraph, i tried to use the peager scheduler as 
> mentioned,
> but it doesn't seem to exist. I have however a pgreedy one,
> Is pgreedy and peager the same i supose?

It was renamed into peager later on yes.

Samuel