Abstract
Application-specific extensions of a processor provide an efficient mechanism to meet the growing performance demands of multimedia applications. This paper presents a color-aware instruction set extension (CAX) for embedded multimedia systems that supports vector processing of color image sequences. CAX supports parallel operations on two-packed 16-bit (6:5:5) YCbCr (luminance-chrominance) data in a 32-bit datapath processor, providing greater concurrency and efficiency for color image and video processing. Unlike typical multimedia extensions (e.g., MMX, VIS, and MDMX), CAX harnesses parallelism within the human perceptual YCbCr space, rather than depending solely on generic subword parallelism. Experimental results on an identically configured, dynamically scheduled 4-way superscalar processor indicate that CAX outperforms MDMX (a representative MIPS multimedia extension) in terms of speedup (3.9× with CAX, but only 2.1× with MDMX over the baseline performance) and energy reduction (68% to 83% reduction with CAX, but only 39% to 69% reduction with MDMX over the baseline). More exhaustive simulations are conducted to provide an in-depth analysis of CAX on machines with varying issue widths, ranging from 1 to 16 instructions per cycle. The impact of the CAX plus loop unrolling is also presented.
This work was performed by author at the Georgia Institute of Technology (Atlanta, GA).
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Austin, T., Burger, D.: The SimpleScalar Tool Set. Version 2.0. TR-1342, Computer Sciences department, University of Wisconsin, Madison
Brooks, D., Tiwari, V., Martonosi, M.: Wattch: A framework for architectural-level power analysis and optimizations. In: Proc. of the IEEE Intl. Symp. on Computer Architecture, pp. 83–94 (2000)
Dongarra, J.J., Hinds, A.R.: Unrolling loops in Fortran. Software-Practice and Experience 9(3), 219–226 (1979)
Gonzalez, R.C., Woods, R.E.: Digital Image Processing, 2nd edn. Prentice-Hall, Englewood Cliffs (2002)
Hennessy, J.L., Patterson, D.A.: Computer Architecture: A Quantitative Approach. Morgan Kaufmann, San Francisco (2003)
Kim, J.: Architectural enhancements for color image and video processing on embedded systems. PhD dissertation, Georgia Inst. of Technology (2005)
Kim, J., Wills, D.S.: Evaluating a 16-bit YCbCr (6:5:5) color representation for low memory, embedded video processing. In: Proc. of the IEEE Intl. Conf. on Consumer Electronics, pp. 181–182 (2005)
Koschan, A.: A comparative study on color edge detection. In: Proc. of the 2nd Asian Conference on Computer Vision, vol. III, pp. 574–578 (1995)
MIPS extension for digital media with 3D. Technical Report, MIPS technologies, Inc. (1997), http://www.mips.com
MMXTM Technology Technical Overview, http://www.x86.org/intel.doc/mmxmanuals.htm
Nguyen, H., John, L.: Exploiting SIMD parallelism in DSP and multimedia algorithms using the AltiVec technology. In: Proc. Intl. Conf. on Supercomputer, pp. 11–20 (1999)
Peleg, A., Weiser, U.: MMX technology extension to the Intel architecture. IEEE Micro 16(4), 42–50 (1996)
Slingerland, N., Smith, A.J.: Measuring the performance of multimedia instruction sets. IEEE Trans. on Computers 51(11), 1317–1332 (2002)
Suh, J., Prasanna, V.K.: An efficient algorithm for out-of-core matrix transposition. IEEE Trans. on Computers 51(4), 420–438 (2002)
Tiwari, V., Malik, S., Wolfe, A.: Compilation techniques for low energy: An overview. In: Proc. of the IEEE Intl. Symp. on Low Power Electron, pp. 38–39 (1994)
Tremblay, M., O’Connor, J.M., Narayanan, V., He, L.: VIS speeds new media processing. IEEE Micro 16(4), 10–20 (1996)
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Kim, J., Wills, D.S., Wills, L.M. (2005). Architectural Enhancements for Color Image and Video Processing on Embedded Systems. In: Srikanthan, T., Xue, J., Chang, CH. (eds) Advances in Computer Systems Architecture. ACSAC 2005. Lecture Notes in Computer Science, vol 3740. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11572961_10
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DOI: https://doi.org/10.1007/11572961_10
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