SeaDAS new l2gen very slow

Use this Forum to find information on, or ask a question about, NASA Earth Science data.
Post Reply
melinfr
Posts: 13
Joined: Mon Aug 08, 2005 12:43 pm America/New_York
Answers: 0

SeaDAS new l2gen very slow

by melinfr » Wed May 07, 2025 8:33 am America/New_York

Dear support,
I am experiencing something that's never happened before, i.e., l2gen is now excruciatingly slow (with very little CPU capacity used, ~1%). This has happened since I installed V2025.1, while the previously installed l2gen, associated with V2023.3, is running fine (with close to 100% CPU). I noticed that the new l2gen versions are 30% bigger but this is not an explanation. Would you see a reason for this? This is deeply worrying as my current installation is useless. Thanks a lot in advance for any help,
Best, F.

Filters:

OB SeaDAS - knowles
Subject Matter Expert
Subject Matter Expert
Posts: 310
Joined: Mon Apr 07, 2008 4:40 pm America/New_York
Answers: 0
Been thanked: 4 times

Re: SeaDAS new l2gen very slow

by OB SeaDAS - knowles » Wed May 07, 2025 9:48 am America/New_York

Can you let's us know what mission you are processing?

Also if you run l2gen from the command line, is it also at the command line?

melinfr
Posts: 13
Joined: Mon Aug 08, 2005 12:43 pm America/New_York
Answers: 0

Re: SeaDAS new l2gen very slow

by melinfr » Thu May 08, 2025 5:08 am America/New_York

Dear support,
thanks a lot for the reply! I am using l2gen exclusively from the command line (with default options), and so far I've noticed problems with Sentinel-3A and MODIS-A. I have seen that l2gen has taken some weight between the 2 versions. However, the screen outputs appear to be the same (so it does not seem that the new version does something weird). Does the new version access resources on the internet (like your web site) while processing?
Thanks for any suggestion,
Best, F.

OB SeaDAS - dshea
Subject Matter Expert
Subject Matter Expert
Posts: 272
Joined: Thu Mar 05, 2009 10:25 am America/New_York
Answers: 0
Been thanked: 3 times

Re: SeaDAS new l2gen very slow

by OB SeaDAS - dshea » Fri May 16, 2025 12:18 pm America/New_York

What system are you running on?
l2gen does not get anything from the network.

don

melinfr
Posts: 13
Joined: Mon Aug 08, 2005 12:43 pm America/New_York
Answers: 0

Re: SeaDAS new l2gen very slow

by melinfr » Fri Jun 20, 2025 9:00 am America/New_York

Dear Support,
sorry for the slow reply. Our machines have Xeon CPUs running RHEL 8.10 as OS. When I source SeaDAS to V2023.3, l2gen goes fast, while if it is V2025.1, it is very slow. Do you have an idea of why this could happen?
Thnaks,
Best, F.

Post Reply