NAMD

Promethium is a GPU-powered chemistry simulation platform designed to accelerate drug and materials development by enabling faster and more accurate quantum chemistry calculations. Built from the ground up for NVIDIA datacenter GPUs like A100, it employs novel QC Ware streaming algorithms to achieve unprecedented computational speed and high throughput-to-power consumption ratios. It supports density functional theory calculations on systems with up to 2,000 atoms, allowing simulations of large molecular systems that are not feasible with legacy CPU-powered ab initio codes. For instance, a single-point calculation of a 2,056-atom protein can be completed in 14 hours on a single GPU. Promethium offers a range of capabilities, including single-point energy calculations, geometry optimization, conformer search, torsion scan, reaction path optimization, transition state optimization, interaction energy computations, and relaxed potential energy surface scans.

GROMACS is a free and open source suite for high-performance molecular dynamics and output analysis. It is a versatile package for simulating the Newtonian equations of motion for systems with hundreds to millions of particles, with a strong focus on materials modeling, biomolecular simulation, and particle-based systems. GROMACS is primarily designed for biochemical molecules such as proteins, lipids, and nucleic acids, which involve many complicated bonded interactions, but its speed in calculating nonbonded interactions also makes it useful for non-biological systems such as polymers and other materials. It can model ensembles of particles in liquid, solid, or gaseous states and supports a wide range of molecular dynamics workflows, from basic energy minimization and equilibration to production simulations and detailed trajectory analysis.