Reconfigurable acceleration and dynamic partial self-reconfiguration in general purpose computing

Ioannis Sourdis*, Abhijit Nandy, Venkatasubramanian Viswanathan, Anthony Brandon, Dimitris Theodoropoulos, Georgi N. Gaydadjiev

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

2 Citations (Scopus)

Abstract

In this paper, we describe a generic approach for integrating a dynamically reconfigurable device into a general purpose system interconnected with a high-speed link. The system can dynamically install and execute hardware instances of functions to accelerate parts of a given software code. The hardware descriptions of the functions (bitstreams) are inserted into the executable binary running on the system. Our compiler further inserts system-calls to the software code to control the reconfigurable device. Thereby, the general purpose host-processor of the system manages the hardware reconfiguration and execution through a Linux device driver. The device has direct access to the main memory (DMA) operating in the virtual address space; it further supports memory mapped IO for data and control, and is able to raise and handle interrupts for synchronization. The above system is implemented on a general purpose machine providing a HyperTransport bus to connect a Xilinx Virtex4-100 FPGA, an AMD Opteron-244, and 1 GB of DDR main memory. We evaluate our proposal using a secure audio processing application. We accelerate in hardware the Audio processing kernel as well as the subsequent AES encryption function via dynamic partial self-reconfiguration. The proposed system achieves a 12 speedup over a software for the application at hand.

Original languageEnglish
Title of host publication2011 International Conference on Field-Programmable Technology
PublisherIEEE
ISBN (Print)9781457717406
DOIs
Publication statusPublished - 1-Dec-2011
Externally publishedYes
Event2011 International Conference on Field-Programmable Technology, FPT 2011 - New Delhi, India
Duration: 12-Dec-201114-Dec-2011

Conference

Conference2011 International Conference on Field-Programmable Technology, FPT 2011
Country/TerritoryIndia
CityNew Delhi
Period12/12/201114/12/2011

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