IDEAS home Printed from https://ideas.repec.org/a/wsi/ijmpcx/v22y2011i02ns012918311101618x.html
   My bibliography  Save this article

Parallel 3d Finite-Difference Time-Domain Method On Multi-Gpu Systems

Author

Listed:
  • LIU-GE DU

    (School of Information Science and Engineering, Shandong University, Jinan 250100, China)

  • KANG LI

    (School of Information Science and Engineering, Shandong University, Jinan 250100, China)

  • FAN-MIN KONG

    (School of Information Science and Engineering, Shandong University, Jinan 250100, China)

  • YUAN HU

    (School of Information Science and Engineering, Shandong University, Jinan 250100, China)

Abstract

Finite-difference time-domain (FDTD) is a popular but computational intensive method to solve Maxwell's equations for electrical and optical devices simulation. This paper presents implementations of three-dimensional FDTD with convolutional perfect match layer (CPML) absorbing boundary conditions on graphics processing unit (GPU). Electromagnetic fields in Yee cells are calculated in parallel millions of threads arranged as a grid of blocks with compute unified device architecture (CUDA) programming model and considerable speedup factors are obtained versus sequential CPU code. We extend the parallel algorithm to multiple GPUs in order to solve electrically large structures. Asynchronous memory copy scheme is used in data exchange procedure to improve the computation efficiency. We successfully use this technique to simulate pointwise source radiation and validate the result by comparison to high precision computation, which shows favorable agreements. With four commodity GTX295 graphics cards on a single personal computer, more than 4000 million Yee cells can be updated in one second, which is hundreds of times faster than traditional CPU computation.

Suggested Citation

  • Liu-Ge Du & Kang Li & Fan-Min Kong & Yuan Hu, 2011. "Parallel 3d Finite-Difference Time-Domain Method On Multi-Gpu Systems," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 22(02), pages 107-121.
    • Handle: RePEc:wsi:ijmpcx:v:22:y:2011:i:02:n:s012918311101618x
    DOI: 10.1142/S012918311101618X
    as

    Download full text from publisher

    File URL: http://www.worldscientific.com/doi/abs/10.1142/S012918311101618X
    Download Restriction: Access to full text is restricted to subscribers
    File URL: https://libkey.io/10.1142/S012918311101618X?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:wsi:ijmpcx:v:22:y:2011:i:02:n:s012918311101618x. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Tai Tone Lim (email available below). General contact details of provider: http://www.worldscinet.com/ijmpc/ijmpc.shtml .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.