Cell broadband engine architecture pdf

Each cache line refers to an entire slice After solidifying the algorithm, and performing the mo- from a reference picture, in order to exploit locality in the tion vector optimization described in Section 4. The first technique is to simply eliminate all DMA com- A potential problem we notice during profiling is the mands that could potentially be double-buffered or cached amount of code needed in order to decode a slice. The com- and see how running time is affected.

Overlays could potentially be used, but almost all of the code is used be- 5. Performance Results tween DMA commands. Therefore, currently most of the DMA commands issued are blocking. Attempting to tackle all of the nuances of the studies. Our procedure for able SPEs. On the Sony PS3, we compile our application maintaining the computational nature of the application using the IBM XLC compiler, and as a comparison we com- helps determine whether the dual-issue capability of the pile one version of the PPE-only version using gcc.

Both SPEs is being utilized completely. If the running time im- compilers are called with the -O3 flag. As a comparison, we also run the reference implemen- PS3. Both of these results are due to the two platforms run- tation on a 3. We compile the program with gcc using the -O3 will always have the same amount of RAM. We believe flag. The difference in RAM is not significant since the ap- that this limitation allows the operating system to optimize plication and benchmark fits within the memory of all three memory allocation.

As a reference, the benchmark takes 3. Our application achieves significant performance gains over the Intel Xeon when using 4 or more SPEs. Both tables also include achieves a speedup of 1. Using 16 piled with XLC and gcc on each platform. Running-time SPEs, the maximum available on the QS20 without code here means the amount of time each program needs to com- modification, our application achieves a speedup of 3.

In Fig. Acknowledgments and Sony PS3. We QS20, and a reference on a 3. PS3 beats the running-time of the reference implementation running on the Intel Xeon processor. These plots gives the running time in seconds and speedup with respect to the running time on the same platform using a single SPE as the number of SPEs is increased to the maximum number of SPEs on each platform. Note that horizontal dashed line is the running time for the same benchmark problem using a 3.

References [1] A. Bilas, J. Fritts, and J. Real-time parallel MPEG-2 decoding in software. Drake, H. Hoffmann, R. Rabbah, and S. MPEG-2 decoding in a stream programming language. In Proc. Flachs, S. Asano, S. Dhong, P. Hofstee, G. Gervais, R. Kim, T. Le, P. Liu, J. Leenstra, J. Liberty, B. Michael, H. Oh, S. Mueller, O. Takahashi, A. Hatakeyama, Y. Watan- abe, and N.

A streaming processor unit for a Cell pro- cessor. Jacobi, H. Oh, K. Tran, S. Cottier, B. Nishikawa, Y. Totsuka, T. Namatame, and N.

The vector floating-point unit in a synergistic processor element of a Cell processor. Kahle, M. Day, H. Hofstee, C. Johns, T.

Maeurer, and D. Introduction to the Cell multiprocessor. IBM J. Kistler, M. Perrone, and F. Cell multiproces- sor communication network: Built for speed.

IEEE Micro, 26 3 —23, Pham, S. Asano, M. Bolliger, M. Johns, J. Kahle, A. Kameyama, J. Keaty, Y. Masubuchi, M. Riley, D. Shippy, D. Stasiak, M. Suzuoki, M. Wang, J. Warnock, S. Weitzel, D. Wendel, T. Yamazaki, and K. The design and implementation of a first- generation Cell processor.

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Palaniappan and G. Download PDF. Cell Broadband Engine Architecture. Authors Authors and affiliations Holger Scherl. This process is experimental and the keywords may be updated as the learning algorithm improves.

Abstract Long before other microprocessor chip vendors developed wide spread multi-core processors Sony Computer Entertainment, Toshiba, and IBM formed an allegiance commonly known as STI-allegiance to build a highly multi-core processor that can overcome the problems of traditional microprocessor technology.

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