Re: [Freesurfer] Flag(s) for parallel processing

No, I don't think that 3 hour number was ever accurate. On 7/20/2020 10:12 AM, Billah, Tashrif wrote: Hi Douglas, You asked a good question which prompted me to do an experiment with just "-threads 8 -itkthreads 8". The run time has been quite slower (~8 hours) compared to ~5 hours it took

[Freesurfer] Flag(s) for parallel processing

Hi Douglas, You asked a good question which prompted me to do an experiment with just "-threads 8 -itkthreads 8". The run time has been quite slower (~8 hours) compared to ~5 hours it took with "-parallel -openmp 8". I agree with you about the underestimation of run time with the latter

Re: [Freesurfer] Flag(s) for parallel processing

-parallel -openmp 4 should run things with 4 processors and parallelize across hemi where it can The run time on that page is probably not accurate. But is it faster when you use those options? On 7/16/2020 11:47 PM, Billah, Tashrif wrote: This

[Freesurfer] Flag(s) for parallel processing

This says "-openmp after -parallel", this says "export ITK_GLOBAL_DEFAULT_NUMBER_OF_THREADS=2", while this says