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Author Spotlight: Streamlining Visual Dynamics to Simplify Molecular Dynamics Simulations Using Gromacs
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Integrating open-source software applications to build molecular dynamics systems.

Bruce M Allen1, Paul K Predecki, Maciej Kumosa

  • 1University of Denver, Daniel Felix Richie School of Engineering & Computer Science, Mechanical & Materials Engineering, 2390 South York Street, Denver, Colorado, 80210.

Journal of Computational Chemistry
|February 6, 2014
PubMed
Summary

MD Studio integrates open-source software for molecular dynamics simulations. This validated suite aids in calculating material properties like density and glass transition temperature for research.

Keywords:
large-scale atomic/molecular massively parallel simulatormolecular dynamicsopen sourcesoftware integration

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Area of Science:

  • Materials Science
  • Computational Chemistry
  • Software Engineering

Background:

  • Molecular dynamics (MD) simulations require specialized software for cell creation.
  • Integrating existing open-source tools can streamline complex simulation workflows.
  • The diglycidyl ether of bisphenol-a and isophorone diamine (DGEBA/IPD) system is a relevant model for polymer research.

Purpose of the Study:

  • To integrate three open-source applications (NanoEngineer-1, packmol, mis2lmp) into a cohesive suite named MD Studio (MDS).
  • To validate the MDS software through rigorous software engineering practices.
  • To demonstrate the utility of MDS by simulating the DGEBA/IPD system and calculating its material properties.

Main Methods:

  • Integration of NanoEngineer-1, packmol, and mis2lmp using an open-source file format.
  • Software validation using established software engineering methodologies.
  • MD simulations of the DGEBA/IPD system using the developed MDS suite.
  • Calculation of density, bulk modulus, and glass transition temperature from simulation data.

Main Results:

  • Successful integration of three OSS applications into the MD Studio (MDS) suite.
  • Validation of MDS through simulation of the DGEBA/IPD system.
  • Calculation of DGEBA/IPD properties (density, bulk modulus, glass transition temperature) with results comparable to published data.
  • Demonstration of MDS's capability to meet real-world research requirements.

Conclusions:

  • The MD Studio (MDS) software provides an effective, integrated open-source solution for creating molecular dynamics simulation cells.
  • The MDS prototype confirms the feasibility of combining OSS applications to generate new research capabilities.
  • The calculated material properties for the DGEBA/IPD system validate the accuracy and reliability of the MDS software.