[MITgcm-support] questions about nonhydrostatic part

[Jean-Michel Campin]

Hi Pengyang,

Did you read also the second 1997 JGR paper: "A finite-volume, incompressible Navier Stokes 
model for studies of the ocean on parallel computers"
I think most of the information is there, and/or in section 4 of the manual, e.g., 
 http://mitgcm.org/public/r2_manual/latest/online_documents/node187.html

We currently don't use multi-grid methods and the nonhydrostatic solver uses
communications between tiles (+ few global_sum ) to solve the global 3-D elliptic 
NH-pressure equation.

Cheers,
Jean-Michel

On Mon, Jun 05, 2017 at 02:37:21AM +0000, ? ?? wrote:
> Dear all,
> I am currently reading papers about nonhydrostatic module in MITgcm (Marshall et al. 1997).
> There is one question that I want to ask:
> How is the elliptic problem solved in parallel environment? I have read the source code of MITgcm and found that it is solved on multi-threads. Especially, how to set the boundary conditions of each sub-grid?
> Thanks in advance.
> Best regards,
> Pengyang Song
> College of Oceanic and Atmospheric Sciences
> Ocean University of China
> 

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