Open-source code for self-consistent field theory calculations of block polymer phase behavior on graphics processing units

Guo Kang Cheong, Anshul Chawla, David C. Morse, Kevin D. Dorfman

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Abstract

Abstract.: Self-consistent field theory (SCFT) is a powerful approach for computing the phase behavior of block polymers. We describe a fast version of the open-source Polymer Self-Consistent Field (PSCF) code that takes advantage of the massive parallelization provided by a graphical processing unit (GPU). Benchmarking double-precision calculations indicate up to 30× reduction in time to converge SCFT calculations of various diblock copolymer phases when compared to the Fortran CPU version of PSCF using the same algorithms, with the speed-up increasing with increasing unit cell size for the diblock polymer problems examined here. Where double-precision accuracy is not needed, single-precision calculations can provide speed-up of up to 60× in convergence time. These improvements in speed within an open-source format open up new vistas for SCFT-driven block polymer materials discovery by the community at large. Graphical abstract: [Figure not available: see fulltext.]

Original languageEnglish (US)
Article number15
JournalEuropean Physical Journal E
Volume43
Issue number2
DOIs
StatePublished - Feb 1 2020

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