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incompatible domain area

Hi people,

I am trying to run CCSM3 (-res T62_gx3v5 -compset L) on a Linux cluster, and fortran compiler. It completes the compilation.
When I start to run, it stops while comparing the ocean and ice domains.
(the comparison of land/atm domains before is perfect).
Here is my error message:

(cpl_domain_compare) domain #1 name: ocn contract domain
(cpl_domain_compare) domain #2 name: ice contract domain
(cpl_domain_compare) the domain size is = 11600
(cpl_domain_compare) maximum latitude difference = 6.821E-12
(cpl_domain_compare) maximum longitude difference = 1.825E-11
(cpl_domain_compare) maximum relative error of area (model) = 5.001E-01
(cpl_domain_compare) ERROR: incompatible domain area (model)
(shr_sys_abort) ERROR: (cpl_domain_compare) incompatible domain area (model)

I did a few outputs:
The latitude and longitudes are different only for the very last digits.
The areas are different for regular positions, every 101 points (knowing that the grid size is 100x116)

If I print the coordinates and areas of the first points complaining, it gives something like that:

n= 101 ---------------------
area1= 1.731470151649015E-004 area2= 3.463686920280175E-004 diff= 0.500107777781210
latd1 = -77.9814883090409 , lond1= 323.299999999985
latd2 = -77.9814883090358 , lond2= 323.299999999988
n= 201 ---------------------
area1= 1.945952383611937E-004 area2= 3.892736566921438E-004 diff= 0.500106839967625
latd1 = -76.4659848953957 , lond1= 323.299999999985
latd2 = -76.4659848953907 , lond2= 323.299999999987
n= 301 ---------------------
area1= 2.159071268976236E-004 area2= 4.319056445751164E-004 diff= 0.500105799473817
latd1 = -74.9504654545146 , lond1= 323.299999999984
latd2 = -74.9504654545097 , lond2= 323.299999999987

As you can see, the area, for this particular longitude band is double in one set compared to the other.

Any idea of what I should check ?

Thanks in advance for your help.
Xavier
 
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