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DL_POLY_3: the CCP5 national UK code for molecular-dynamics simulations
1Computational Science and Engineering Department, CCLRC Daresbury Laboratory, Daresbury, Warrington WA4 4AD, UK. i.t.todorov@dl.ac.uk
Summary
DL_POLY_3 is a molecular-dynamics simulation package featuring efficient domain decomposition (DD) parallelization. It enables large-scale simulations of over a million particles using a novel smoothed particle mesh Ewald method adaptation.
Area of Science:
- Computational Physics
- Materials Science
- Chemistry
Background:
- Molecular dynamics simulations are crucial for understanding material properties.
- Efficient parallelization strategies are needed for large-scale simulations.
- Existing methods for long-range force calculations can be computationally intensive.
Purpose of the Study:
- To describe the DL_POLY_3 molecular-dynamics simulation package.
- To highlight its efficient domain decomposition (DD) parallelization.
- To detail its capability for simulating large systems.
Main Methods:
- Utilizes a domain decomposition (DD) parallelization strategy.
- Incorporates a novel 3D Fast Fourier Transform (the Daresbury Advanced Fourier Transform).
- Implements a DD adaptation of the smoothed particle mesh Ewald method for long-range forces.
Main Results:
- DL_POLY_3 supports academic research across various applications.
- The package runs on diverse computing architectures, from workstations to supercomputers.
- Enables simulations of systems with one million particles or more.
Conclusions:
- DL_POLY_3 offers a powerful and scalable platform for molecular dynamics simulations.
- Its efficient parallelization and advanced algorithms facilitate large-scale research.
- The package is designed for broad accessibility and efficient use of computational resources.
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