Thanks, Doug, for confirming.

Do you know the name of which specific math libraries may be the culprit? Or do you have an example that is independent of freesurfer that can show the difference between the two?

I'm trying to narrow down the difference to see if this may be a bigger issue for other software too.

Thanks so much in advance! Mitch ________________________________ From: freesurfer-bounces@nmr.mgh.harvard.edu freesurfer-bounces@nmr.mgh.harvard.edu on behalf of Douglas N. Greve dgreve@mgh.harvard.edu Sent: Monday, March 27, 2023 4:25:16 PM To: freesurfer@nmr.mgh.harvard.edu freesurfer@nmr.mgh.harvard.edu Subject: Re: [Freesurfer] HPC Usage - Moving On from CentOS7

yep, this is a known issue. The math libraries changed between 7 and 8, nothing we can do about it. When I have to run things on a centos8 machine, I generally run in a centos7 singularity container (which we might be able to make available, without support:)

On 3/27/2023 3:48 PM, Horn, Mitchell Jacob wrote:

Hi Dev team,

I just wanted to let the community know that as many HPC systems are moving on from CentOS7, to be very cognizant of the potential need to reprocess their dataset. My institution is moving to Alma and there was in fact a difference (attaching table). All recons were done with subject bert, all with 7.2.0, no flags.

[cid:part1.QdsZT6CF.rI5f0PRN@mgh.harvard.edu]

Best,

Mitch

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