![](http://www.commedx.com/en/wp-content/uploads/2020/12/lead-optimization-1024x573.png)
Super large-scale molecular docking (number of hundreds of millions; speed 0.1-1 second)
Energy minimization and MM-GB/SA re-scoring (number of tens of thousands; speed: minutes)
MM-PB/SA free energy calculation based on molecular dynamics (number of thousands; speed from hours to days)
Free energy perturbation (FEP)/thermodynamic integration (Ti), and Umbrella sampling (PMF) free energy calculation (number of hundreds; speed of days)