Problem on coupling

[hbzong]

I updated the bathymetry of a coupling case. Before I updated the bathymetry, the model could run successfully. But now, it can’t run.
Firstly, I updated the bathymetry and the mask of ROMS grid file. Then, generated SWAN grid file, bathymetry file and wind files with new ROMS grid file.
When only 1 cpu was allocated for SWAN, ROMS exchanged data with SWAN before the first step. Then model crashed after fisrt step.
In log file:
STEP Day HH:MM:SS KINETIC_ENRG POTEN_ENRG TOTAL_ENRG NET_VOLUME

0 0 00:00:00 0.000000E+00 1.339995E+02 1.339995E+02 2.034991E+12
DEF_HIS - creating history file: Yrm/Output/Yrm_his_uvt2.nc
WRT_HIS - wrote history fields (Index=1,1) into time record = 0000001
DEF_AVG - creating average file: Yrm/Output/bohaih_avgwo5nbl.nc
rank 1 in job 1 c0212_32945 caused collective abort of all ranks
exit status of rank 1: killed by signal 9


In PRINT file , the bottom line is
+time 20061015.000500 , step 1; iteration 1; sweep 1


When more than 1 cpu were allocated for SWAN, the model crashed before the first step.
In log file:
WESTERN_WALL Wall boundary at Western edge.
rank 1 in job 1 c0212_51818 caused collective abort of all ranks
exit status of rank 1: killed by signal 9

In PRINT file , the bottom line is
COMPUTE NONSTAT 20061015.000000 300 SEC 20061113.240000

And ecs.err file :
MCT::m_ExchangeMaps::ExGSMapGSMap_:: MCTERROR, Grid Size mismatch
LocalMap Gsize = 36000 RemoteMap Gsize = 35460
MCT::m_ExchangeMaps::ExGSMapGSMap_: Map Grid Size mismatch error, stat =3
000.MCT(MPEU)::die.: from MCT::m_ExchangeMaps::ExGSMapGSMap_()
application called MPI_Abort(MPI_COMM_WORLD, 2) - process 0 MCT::m_ExchangeMaps::ExGSMapGSMap_:: MCTERROR, Grid Size mismatch
LocalMap Gsize = 35460 RemoteMap Gsize = 36000
MCT::m_ExchangeMaps::ExGSMapGSMap_: Map Grid Size mismatch error, stat =3
001.MCT(MPEU)::die.: from MCT::m_ExchangeMaps::ExGSMapGSMap_()
application called MPI_Abort(MPI_COMM_WORLD, 2) - process 1

The ROMS grid size is 200 by 180. And the SWAN grid has same size with ROMS grid. I down't know why the grid size mismatched.

Any suggestions?

PS:The ocean model can run without wave model.

[jcwarner]

grid size mismatch.
looks like 36000-35460=540. are you giving the right grid size to swan (180*3=540).
-j

[jcwarner]

grid size mismatch.
looks like 36000-35460=540. are you giving the right grid size to swan (180*3=540).
-j

[mathieu]

One possible explanation for this problem is that SWAN reduces his grid when it has full land mask on it. This allows it to gain a little in speed but creates a mismatch in grid size.
The solution to this problem is to set up the bathymetry to zero in the swan grid when there is land.

[xinpianyu72]

I got the same mistake when I do a coupled modelling IN WRF-ROMS-SWAN. and the reason lies in the setting of SWAN INPUT GRID in INPUT file.
thanks