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- W2051736238 abstract "Computational methods have been used in biology for sequence analysis (bioinformatics), all-atom simulation (molecular dynamics and quantum calculations), and more recently for modeling biological networks (systems biology). Of these three techniques, all-atom simulation is currently the most computationally demanding, in terms of compute load, communication speed, and memory load. Breakthroughs in electrostatic force calculation and dynamic load balancing have enabled molecular dynamics simulations of large biomolecular complexes. Here, we report simulation results for the ribosome, using approximately 2.64 million atoms, the largest all-atom biomolecular simulation published to date. Several other nano-scale systems with different numbers of atoms were studied to measure the performance of the NAMD molecular dynamics simulation program on the Los Alamos National Laboratory Q Machine. We demonstrate that multimillion atom systems represent a ‘sweet spot’ for the NAMD code on large supercomputers. NAMD displays an unprecedented 85% parallel scaling efficiency for the ribosome system on 1024 CPUs. We also review recent targeted molecular dynamics simulations of the ribosome that prove useful for studying conformational changes of this large biomolecular complex in atomic detail." @default.
- W2051736238 created "2016-06-24" @default.
- W2051736238 creator A5024203760 @default.
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- W2051736238 date "2007-03-01" @default.
- W2051736238 modified "2023-10-14" @default.
- W2051736238 title "High performance computing in biology: Multimillion atom simulations of nanoscale systems" @default.
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- W2051736238 doi "https://doi.org/10.1016/j.jsb.2006.10.023" @default.
- W2051736238 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/1868470" @default.
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