Re: [Freesurfer] Specification of computer

2017-02-04 Thread Bruce Fischl
Hi Aziz -openmp 4 will speed up the recon of a single subject. If you had 16 processors and enough RAM you could run 4 subjects at the same time that way and each of them would be faster. We've had recons complete in 2-3 hours this way, depending on the anatomy. cheers Bruce On Sat, 4 Feb

Re: [Freesurfer] Specification of computer

2017-02-04 Thread Aziz Nanthaamornphong
Hi Bruce, So, I am not sure if I understand correct. Suppose, I would like to run 4 subjects simultenously, I have to run the recon-all command of each subject on each terminal with -openmp. Otherwise, is there any other options to run 4 subjects in one terminal. Thank you, Aziz. On Sat, Feb 4,

Re: [Freesurfer] Specification of computer

2017-02-04 Thread Bruce Fischl
yes it does, and it should significantly reduce execution time unless you don't have multiple cores cheers Bruce On Sat, 4 Feb 2017, Aziz Nanthaamornphong wrote: Hi Bruce, Does FS6 support the 'openmp 8' flag? I tried to use this flag with 'recon-all -all' on FS6, but it took longer time

Re: [Freesurfer] Specification of computer

2017-02-04 Thread Aziz Nanthaamornphong
Hi Bruce, Does FS6 support the 'openmp 8' flag? I tried to use this flag with 'recon-all -all' on FS6, but it took longer time for only one subject. Thank you, Aziz. On Fri, Feb 3, 2017 at 10:16 PM, Bruce Fischl wrote: > Hi Aziz > > with multiple course you can

Re: [Freesurfer] Specification of computer

2017-02-03 Thread Bruce Fischl
Hi Aziz with multiple course you can specify -openmp 8 for exmaple to use 8 cores, which speeds things up a lot. It also depends how many recons you will be running at the same time. A 16 core machine with 64G of ram would be able to run 4 recons in a few hours each. cheers Bruce On Fri, 3

[Freesurfer] Specification of computer

2017-02-03 Thread Aziz Nanthaamornphong
Hi experts, I would like to find a new high-performance computer to run the reconstruction process in Freesurfer. Currently, I used a single computer (Intel core i7, RAM 8MB) to run the commands (e.g., 'recon-all -all' ) that spent average time 7-9 hours per one subject data. Please let me know