Parallel implementation of Boltzmann Transport Simulation of carbon nanotubes

Zlatan Aksamija, Mohamed Y. Mohamed, Umberto Ravaioli

Research output: Chapter in Book/Report/Conference proceedingConference 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 languageEnglish (US)
Title of host publicationProceedings - 2009 13th International Workshop on Computational Electronics, IWCE 2009
DOIs
StatePublished - Oct 27 2009
Event2009 13th International Workshop on Computational Electronics, IWCE 2009 - Beijing, China
Duration: May 27 2009May 29 2009

Publication series

NameProceedings - 2009 13th International Workshop on Computational Electronics, IWCE 2009

Other

Other2009 13th International Workshop on Computational Electronics, IWCE 2009
CountryChina
CityBeijing
Period5/27/095/29/09

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Parallel implementation of Boltzmann Transport Simulation of carbon nanotubes'. Together they form a unique fingerprint.

  • Cite this

    Aksamija, Z., Mohamed, M. Y., & 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). https://doi.org/10.1109/IWCE.2009.5091137