[MITgcm-devel] cs510 on IBM p690

[Martin Losch]

I forgot to say, that I am using the optfile MITgcm/tools/ 
build_options/sp4+mpi_jump

M.

On 13 Feb 2007, at 15:57, Martin Losch wrote:

> Hi there,
>
> I am having difficulties running the high resolution cs510  
> experiment, that Dimitris so nicely prepared and documented on  
> MITgcm_contrib (no irony there!)
>
> I start from rest and after switching off the seaice model, or more  
> specifically seaice dynamics, also after switching to the EVP  
> solver I finally managed to get 1 full time step without the model  
> blowing up completely so that I at least get some output. I have  
> attached Eta after one timestep. I use SIZE.h_27 (216 tile on 27  
> cpus), see attached code directory and slightly modified  
> *_OPTIONS.h files (mainly SEAICE). I have turned off all PTRACERS/ 
> GCHEM stuff (even in packages.conf, although not in the attached  
> code.tgz).
>
> Clearly something is wrong with the exchanges. I cannot reproduce  
> this result with a cs32 configuration: It runs fine without any  
> obvious problems.
>
> For this I use checkpoint58v_post code.
>
> I can reproduce this on two different IBM p690 ( http://jumpdoc.fz- 
> juelich.de/  the FZJ link on that page and http://www.hlrn.de/doc/ 
> basics.html#id2449391 ) with xlf95.
>
> Any idea, what might be going wrong, what I could try next?
> Anyone with experience on thes p690?
>
> Despairing,
> Martin
>
> PS. and as usual, I will not be able to provide access to any of  
> these machines (o:
>
> <code.tgz>
>
> <eta.png>
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