Hi Bruce!

Thanks for the fast response. I used the current stable version 5.3.0.1 (freesurfer-Darwin-lion-stable-pub-v5.3.0.1).
So I will try as you have suggested ...

Best wishes,

Lukas

> Bruce Fischl Fri, 02 May 2014 05:47:26 -0700
>
> Hi Luke
>
> what version of FS are you running? We see significant speedups. Try
> running top in a unix terminal and seeing if the cpu usage of
> mri_ca_register (during autorecon2, the longest single step) is morethan 100%
>
> cheers
> Bruce
>
> On Fri, 2 May 2014, lukas.sch...@ukb.uni-bonn.de wrote:
>
>
> > Hi folks!
> >
> > I try to use -openmp option on an iMAC with 4 cores. Unfortunately, I do not
> > see any accelartion when processing a single data set with or without the
> > flag -openmp flag set.
> >
> > recon-all -s ernie_1 -all
> >
> > leads to ~6,4h processing time.
> >
> > Unfortunately
> > recon-all -s ernie_2 -all -openmp 4
> >
> > did not change anything. Do I miss anything? Do I have to prepare my system
> > in a special way? Or run any scripts in advance?
> >
> > (System: iMac, 32GbRam,Intel i5, 4 cores, Mac Os 10.9, latest FS version)
> >
> > Best wishes,
> >
> > Luke