Re: [Starpu-devel] OpenMP example

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

Samuel Thibault, le Tue 14 Feb 2012 11:55:28 +0100, a écrit :
> Usman Dastgeer, le Tue 14 Feb 2012 11:07:19 +0100, a écrit :
> > I tried executing OpenMP example (examples/openmp/vector_scal) using gcc 
> > as
> > suggested:
> > gcc -fopenmp vector_scal.c -o vector_scal $(pkg-config --cflags 
> > libstarpu) $
> > (pkg-config --libs libstarpu)
> > 
> > However it still executes the parallel task with 1 CPU and other 15 CPU 
> > workers
> > are not used. What am I missing?
> 
> Are you running it with the pheft scheduler? The example makes it the
> default by itself only from revision 5315.

Also, it needs to be run several times to calibrate the performance
models (and even then, it might just prefer to run with 1 cpu, which is
faster than several).

Samuel