Parallel implementation of Boltzmann Transport Simulation of carbon nanotubes

Zlatan Aksamija; Mohamed Y. Mohamed; Umberto Ravaioli

doi:10.1109/IWCE.2009.5091137

Parallel implementation of Boltzmann Transport Simulation of carbon nanotubes

Zlatan Aksamija, Mohamed Y. Mohamed, Umberto Ravaioli

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

This works treats electronic transport in SWNTs in the Boltzmann Transport equation (BTE) formalism. The BTE is solved self-consistently with the Poisson equation and iterated in time using an upwinding finite-difference scheme until a steady-state is reached. Phonon scattering is included through a relaxation time based on experimental values reported in the literature. The problem is parallelized by dividing the real space into strips, where each strip is assigned to one processing element to minimize communication overhead. The implementation was tested on a many-processor cluster and shows good speed-up over the serial code. This demonstrates that the code is capable of excellent scaling to large supercomputing machines for large-scale parallel simulation of nanotubes, as well as other similar 1-dimensional materials like nanoribbons and nanowires.

Original language	English (US)
Title of host publication	Proceedings - 2009 13th International Workshop on Computational Electronics, IWCE 2009
DOIs	https://doi.org/10.1109/IWCE.2009.5091137
State	Published - Oct 27 2009
Event	2009 13th International Workshop on Computational Electronics, IWCE 2009 - Beijing, China Duration: May 27 2009 → May 29 2009

Publication series

Name	Proceedings - 2009 13th International Workshop on Computational Electronics, IWCE 2009

Other

Other	2009 13th International Workshop on Computational Electronics, IWCE 2009
Country	China
City	Beijing
Period	5/27/09 → 5/29/09

ASJC Scopus subject areas

Computational Mechanics
Electrical and Electronic Engineering
Electronic, Optical and Magnetic Materials

Access to Document

10.1109/IWCE.2009.5091137

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Parallel implementation of Boltzmann Transport Simulation of carbon nanotubes. / Aksamija, Zlatan; Mohamed, Mohamed Y.; Ravaioli, Umberto.

Proceedings - 2009 13th International Workshop on Computational Electronics, IWCE 2009. 2009. 5091137 (Proceedings - 2009 13th International Workshop on Computational Electronics, IWCE 2009).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Aksamija, Z, Mohamed, MY & Ravaioli, U 2009, Parallel implementation of Boltzmann Transport Simulation of carbon nanotubes. in Proceedings - 2009 13th International Workshop on Computational Electronics, IWCE 2009., 5091137, Proceedings - 2009 13th International Workshop on Computational Electronics, IWCE 2009, 2009 13th International Workshop on Computational Electronics, IWCE 2009, Beijing, China, 5/27/09. https://doi.org/10.1109/IWCE.2009.5091137

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