Thanks Mike, It's a relief to find out that the split is performed internally

I have another question regarding using DLL to include external load
Is there any limit to the no.of times the DLL will be called in Hydrodynamic Response module, because I ran the simulation for 60 sec with 0.2 sec as time step, the external force is caluclated for only 50.8 sec and after that it is zero. I have tried several time steps and total simulation time and found that the DLL is being called for only 254 times and after that it is zero every time

Could you explain what is happening?

Thanks, PC