The Rust Core#

MolSysMT incorporates a compiled, native Rust execution core designed for high-performance numerical computations, spatial queries, and molecular structures sequence analytics.

High-Performance Compiled Kernels#

While MolSysMT provides a user-friendly Python API, computationally intensive inner loops are delegated to a compiled Rust native core:

  • Distance Matrices & Minimum Image Convention: Structure-by-structure pair distance evaluations and periodic boundary condition (PBC) minimum image calculations.

  • Solvent Accessible Surface Area (SASA): Optimized numerical integration of atomic surface accessibilities.

  • Root-Mean-Square Deviation (RMSD): Fast Kabsch alignment and coordinate superposition over structure sequences.

Memory Safety and PyO3 / C-ABI Integration#

The native core is written in Rust and integrated seamlessly with Python:

  • Memory Safety: Rust’s strict memory ownership model guarantees data race freedom and prevents memory leaks during long-running spatial sequence analyses.

  • Zero-Overhead Array Passing: PyO3 bindings and C-ABI interfaces pass NumPy array memory buffers directly to Rust compiled kernels without unnecessary copying or serialization overhead.