Reply To: Selective mass scaling

[Nanda Veralla]

Hello Nikhil,
Your observations are correct, despite selective mass scaling (SMS) being more computationally intensive due to its requirement for solving a sparse system of equations at each time step, it often results in less overall simulation time due to its ability to maintain accuracy with fewer iterations. SMS uses a preconditioned conjugate gradient method (PCG) for solving the equations. The iterative nature of SMS means that while it may require more CPU resources per time step, it can converge faster overall for certain problems, especially in complex simulations where accuracy is critical

This is likely why you observed a 50% reduction in simulation time when using SMS compared to CMS. Hope this helps.

Regards,

Nanda.

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