[MITgcm-devel] IBM Regatta and cubed sphere

[Chris Hill]

Matin,

 I've managed to get myself about sextuple booked today and tomorrow, but I
will look soon. I do have an IBM account again now.

Chris 

> -----Original Message-----
> From: mitgcm-devel-bounces at mitgcm.org 
> [mailto:mitgcm-devel-bounces at mitgcm.org] On Behalf Of Martin Losch
> Sent: Thursday, May 13, 2004 4:22 AM
> To: MITgcm-devel at mitgcm.org
> Subject: [MITgcm-devel] IBM Regatta and cubed sphere
> 
> Hi,
> 
> today I managed to compile and run a verification experiment 
> (exp0) with mpi on our IBM Regatta. The experiment passed but 
> only after
> manipulation:
> 1. no cc-compiler was available, old problem, I made softlink 
> cc --> gcc 2. in genmake2:
> Error: can't read
> OPTFILE="../../../tools/build_options/aix_0010117a4c00_f77"
> reason uname -a returns: AIX edvir1 1 5 0010117A4C00 so I 
> specified sp4 as the optfile 3. Makefile and compilation is 
> fine with ./testreport -ieee -mpi -of 
> ../tools/build_options/sp4 -t exp0 but no number to compare( 
> "Not enough lines of output when searching for ..."):
>                  T           S           U           V
> G D M    c        m  s        m  s        m  s        m  s
> E p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
> N n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
> 2 d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
> 
> Y Y Y Y -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- N/O   exp0
> 
> I had to run the model with the IBM specific command poe 
> ./mitgcmuv -procs 2 and then I copied STDOUT.0000 to 
> output.txt in exp0/input and reran testreport with:
> ./testreport -ieee -mpi -q -t exp0
> which gives:
>                  T           S           U           V
> G D M    c        m  s        m  s        m  s        m  s
> E p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
> N n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
> 2 d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
> 
> Y Y Y Y 13 16 16 16 16 16 16 16 16 16 16 12 13 13 13 13 16 
> pass  exp0 Start time:  Wed May 12 14:46:29 DFT 2004
> End time:    Wed May 12 14:46:31 DFT 2004
> 
> So that's good.
> I did the same with global_ocean.cs32x15 (also with -mpi) and 
> I have the same problems as before but now I get:
> 
> STOP MON_SOLUTION: STOPPED DUE TO EXTREME VALUES OF SOLUTION 
> STOP MON_SOLUTION: STOPPED DUE TO EXTREME VALUES OF SOLUTION
> 
> The problem as before (last week with my own version of this
> experiment) is near the tile edges (see my last figure), 
> immediately for the first time step 72000, w is wrong at the 
> tile edges.
> 
> So far I have not been able to test this experiment with MPI 
> on a different platform. But I'll keep trying.
> 
> Martin
> 
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