Dear all
 
I am attempting to run the RegCM3 with sub-BATS scheme.
I can't run it successfully.
At first, I setted the NSG=4 in domain.param.
And, I checked the NSG and NNSG in regcm.param and regcm.param2.
This is my error message.

 maximum time =   57.750 days.
 time step =   60.00 seconds
 dx =  20000. meters
 grid points (x,y) = ( 34, 34)
 number of levels = 18
 constant hor. diff. coef. =  0.10000E+05 m*m/s
 maximum  hor. diff. coef. =  0.10417E+06 m*m/s
PGFIO-F-209/unformatted read/unit=14/'OLD' specified for file which does not exist.
 In source file init.f, at line number 526
 
How to solve this prblem? Any suggestion is appreciated.
Any body know the step of sub-BATS scheme. Teach me,,,,,
Thanks 
 
>Sanghun Lee, Ph.D.
>E-mail: sanghunchang@hotmail.com