Ocean Modeling Discussion

ROMS/TOMS

Search for:
It is currently Sun Jul 21, 2019 9:23 pm




Post new topic Reply to topic  [ 3 posts ] 

All times are UTC

Author Message
PostPosted: Thu Aug 02, 2018 4:27 pm 
Offline

Joined: Mon Jan 12, 2015 4:12 pm
Posts: 17
Location: URI GSO
I'm interested in defining an application-specific grid. Motivation: if we have a grid where the standard domain decomposition results in one or more tiles (MPI processes) that are composed entirely of masked out land cells, then this seems like an inefficient allocation of our computing resources. The application I have in mind is a section of the continental shelf with a narrow estuary, but I assume this is an issue relevant to global models where the continents are masked out.

I'm looking for information on other models which have dealt with this problem as well as any major foreseeable ROMS-specific roadblocks. Excuse me if this has already been discussed in the forum.


Top
 Profile  
Reply with quote  
PostPosted: Thu Aug 02, 2018 5:05 pm 
Offline
User avatar

Joined: Wed Jul 02, 2003 5:29 pm
Posts: 3633
Location: IMS/UAF, USA
I know that CICE won't compute on tiles which are completely land-covered. Also, HYCOM has done this for many years. I once asked Hernan about this and didn't get a satisfactory answer. It came up because in coupling to CICE, you have to make sure all the CICE tiles have some ocean in them or the coupling as I was using it failed to work.


Top
 Profile  
Reply with quote  
PostPosted: Thu Aug 02, 2018 6:11 pm 
Offline

Joined: Mon Jan 12, 2015 4:12 pm
Posts: 17
Location: URI GSO
Thanks Kate

kate wrote:
Also, HYCOM has done this for many years.

Page 56 of the HYCOM user's guide https://hycom.org/attachments/063_hycom_users_guide.pdf 20.3 Generating "Equal-Ocean" Tile Partitions, looks like the most promising lead so far.


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 3 posts ] 

All times are UTC


Who is online

Users browsing this forum: No registered users and 3 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group