It is mainly the OS version, yet, sometimes the same OS can run on very
different architectures (eg. on 32bit or 64 bit systems, or even tablets
and phones), which could affect results. Starting with Lion, OSX only
runs on 64 bit systems though.
Best, Martin
On 01/05/2016 02:09 AM, Kasper Jessen wrote:
Thank you for your reply.
Okay - so if i understand it correctly, then both the OS version and
the computer system (i.e processor) has to be the same.
What is the reason for the processer has to be the same?
Best regards,
Kasper Jessen
2016-01-04 15:31 GMT+01:00 Martin Reuter <mreu...@nmr.mgh.harvard.edu
<mailto:mreu...@nmr.mgh.harvard.edu>>:
Hi Kasper,
this is because you use two different version of the OS (each
coming with different sets of libraries). 11.4.2 is Lion from
2012. 13.4.0 is Mavericks from 2014.
You don't need to keep the computer fixed, but the OS should be
the same (= here same means same version) and the system (ie
processor).
Cheers, Martin
On 01/04/2016 05:58 AM, Kasper Jessen wrote:
Dear freesurfer,
As i understand from a previous forum thread, it is recommended
that all the data is run on the same computer with the same
operating system.
However, what is the reason for the differing results when I am
running the same 10 subjects on a MacPro and iMac respectively
(please see below):
*MacPro:*
build-stamp.txt: freesurfer-Darwin-lion-stable-pub-v5.3.0
13.4.0 Darwin Kernel Version 13.4.0
*iMac: *
build-stamp.txt: freesurfer-Darwin-lion-stable-pub-v5.3.0
11.4.2 Darwin Kernel Version 11.4.2
All the values are different. For example, the
lh_caudalmiddlefrontal_thickness is on the iMac 2.472 and on the
MacPro 2.537.
Is it because of a randomization generator in FreeSurfer?
Best regards,
Kasper Jessen
_______________________________________________
Freesurfer mailing list
Freesurfer@nmr.mgh.harvard.edu
<mailto:Freesurfer@nmr.mgh.harvard.edu>
https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
--
Martin Reuter, PhD
Assistant Professor of Radiology, Harvard Medical School
Assistant Professor of Neurology, Harvard Medical School
A.A.Martinos Center for Biomedical Imaging
Massachusetts General Hospital
Research Affiliate, CSAIL, MIT
Phone:+1-617-724-5652 <tel:%2B1-617-724-5652>
Web :http://reuter.mit.edu
_______________________________________________
Freesurfer mailing list
Freesurfer@nmr.mgh.harvard.edu <mailto:Freesurfer@nmr.mgh.harvard.edu>
https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
The information in this e-mail is intended only for the person to
whom it is
addressed. If you believe this e-mail was sent to you in error and
the e-mail
contains patient information, please contact the Partners
Compliance HelpLine at
http://www.partners.org/complianceline . If the e-mail was sent to
you in error
but does not contain patient information, please contact the
sender and properly
dispose of the e-mail.
--
Kasper Jessen,
MD, PhD student
Center for neuropsychiatric Schizophrenia Research (CNSR)
Mental Health Centre Glostrup
Nordre Ringvej 29-67
2600 Glostrup
Tlf.: 24430136
E-mail: kaspe...@cnsr.dk <mailto:kaspe...@cnsr.dk> eller
kasper.jes...@regionh.dk <mailto:kasper.jes...@regionh.dk>
_______________________________________________
Freesurfer mailing list
Freesurfer@nmr.mgh.harvard.edu
https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
--
Martin Reuter, PhD
Assistant Professor of Radiology, Harvard Medical School
Assistant Professor of Neurology, Harvard Medical School
A.A.Martinos Center for Biomedical Imaging
Massachusetts General Hospital
Research Affiliate, CSAIL, MIT
Phone: +1-617-724-5652
Web : http://reuter.mit.edu
_______________________________________________
Freesurfer mailing list
Freesurfer@nmr.mgh.harvard.edu
https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
The information in this e-mail is intended only for the person to whom it is
addressed. If you believe this e-mail was sent to you in error and the e-mail
contains patient information, please contact the Partners Compliance HelpLine at
http://www.partners.org/complianceline . If the e-mail was sent to you in error
but does not contain patient information, please contact the sender and properly
dispose of the e-mail.
