Pouring SIRAH on NAMD.

Area of Science:

• Computational Biology
• Biophysics
• Molecular Modeling

Background:

• Molecular dynamics (MD) simulations are crucial for studying biomolecular dynamics at atomic resolution.
• Force field and software compatibility issues can hinder simulation interoperability and transferability.

Purpose of the Study:

• To demonstrate the successful application of the SIRAH force field with the NAMD molecular dynamics engine.
• To evaluate the performance of SIRAH simulations across different NAMD versions, including GPU-accelerated NAMD3.

Main Methods:

• Utilized the coarse-grained SIRAH force field.
• Employed the NAMD molecular dynamics engine, leveraging its AMBER input file compatibility.
• Conducted simulations on benchmark biomolecular systems using NAMD2 and NAMD3 (GPU-accelerated).

Main Results:

• Achieved successful and consistent simulation results using SIRAH with NAMD across benchmark systems.
• Demonstrated seamless integration of SIRAH with NAMD, including NAMD3.
• Observed enhanced simulation throughput on GPU-accelerated hardware.

Conclusions:

• The SIRAH force field is effectively compatible with NAMD, expanding its applicability.
• Leveraging GPU computing with NAMD and SIRAH significantly enhances simulation efficiency.
• This work facilitates advanced biomolecular simulations using modern high-performance computing resources.