Dear Rene,
that is very interesting. Are you using quite an old release, from when we shipped eddy_openmp for Mac? Can you see if you actually get more than 100% CPU utilisation?
Best regards Jesper
On 15/08/2022, 15:36, "FSL - FMRIB's Software Library on behalf of Andrade Rey René" <[log in to unmask] on behalf of [log in to unmask]> wrote:
I have Mac OS Monterey and eddy_openmp works in my case. I think may be execution rights to be able to run. When you copy to the fsl directory it usually doesn’t have rights. Sorry to meddle into what is none of my work but I just wanted to try to help because in many occasions I happen to struggle with my Mac as well.
Best,
Rene Andrade.
> On 15 Aug 2022, at 16:29, Jesper Andersson <[log in to unmask]> wrote:
>
> ATENCIÓN: Este correo electrónico se envió desde fuera de la UAH. No haga clic en enlaces ni abra archivos adjuntos a menos que reconozca al remitente y sepa que el contenido es seguro.
>
> Dear Albert,
>
> Mac dropped automatic support for OpenMP a few OS versions ago. Hence we haven't released a multi-threaded version of eddy for some time.
>
> For the next release we have changed the CPU parallelisation from using OpenMP to using the C++11 thread library. Since that is a standard part of C++, that should protect us from having that particular rug pulled out from under us again. And the next release of FSL will come with support for multi-threading in eddy again.
>
> Best regards Jesper
>
>
> On 28/07/2022, 10:39, "FSL - FMRIB's Software Library on behalf of Albert Piersson" <[log in to unmask] on behalf of [log in to unmask]> wrote:
>
> Hi FSL experts
>
> Running Eddy correction on my iMac (macOs Monterey version 12.4; 24inch, M1, 2021) threw me this error:
>
> Errors: couldn't execute "/usr/local/fsl/bin/eddy_openmp": no such file or directory
>
> switching from /Users/adp to /Volumes/ADP/MyPhD/DTI/AD001
> /usr/local/fsl/bin/eddy_openmp --imain=/Volumes/ADP/MyPhD/DTI/AD001/AD001.nii.gz --mask=/Volumes/ADP/MyPhD/DTI/nodif_brain_mask.nii --bvals=/Volumes/ADP/MyPhD/DTI/AD001/AD001.bval --bvecs=/Volumes/ADP/MyPhD/DTI/AD001/AD001.bvec --acqp=/Users/adp/Desktop/DTI/Acqparams.txt --index=/Users/adp/Desktop/DTI/Index_file.txt --out=/Volumes/ADP/MyPhD/DTI/AD001/data --ref_scan_no=0 --ol_nstd=4 --verbose
>
> Any help with what might have gone wrong?
>
> Thanks
>
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