Dear Anyah, In my case Processor is 64-bit and default netcdf and udunits libs are used. Nazrul > Hi Nazrul, > Is your OS also 64-bit, or just the processors? > If so, did you use the default netcdf and udunits libs which come > with the regcm-tarred package. Or do you enforce some compiler > options to override the bit mismatch? Richard