Analyzing scalability limits of H.264 decoding due to TLP overhead
نویسندگان
چکیده
Mauricio Alvarez, Arnaldo Azevedo, Cor Meenderinck, Ben Juurlink, Andrei Terechko, Jan Hoogerbrugge, Alex Ramirez Technical University of Catalonia (UPC), Barcelona, Spain Delft University of Technology, Delft, The Netherlands NXP, Eindhoven, The Netherlands Barcelona Supercomputing Center (BSC), Barcelona, Spain Email: [email protected], {azevedo, cor, benj}@ce.et.tudelft.nl, {andrei.terechko, jan.hoogerbrugge}@nxp.com, [email protected]
منابع مشابه
Performance Evaluation of Macroblock-level Parallelization of H.264 Decoding on a cc-NUMA Multiprocessor Architecture
This paper presents a study of the performance scalability of a macroblock-level parallelization of the H.264 decoder for High Definition (HD) applications on a multiprocessor architecture. We have implemented this parallelization on a cache coherent Non-uniform Memory Access (cc-NUMA) shared memory multiprocessor (SMP) and compared the results with the theoretical expectations. The study inclu...
متن کاملParallel Scalability of H.264
An important question is whether emerging and future applications exhibit sufficient parallelism, in particular thread-level parallelism (TLP), to exploit the large numbers of cores future CMPs are expected to contain. As a case study we investigate the parallel scalability of the H.264 decoding process. Previously proposed parallelization strategies such as slice-level, frame-level, and intra-...
متن کاملMemory Analysis for H.264/AVC Scalable Extension Decoder
In this paper, a systematic analysis for memory usage in H.264/AVC scalable extension (SVC) decoder is presented. This paper analyzes the memory requirements with three different decoding flows, macroblock, row and frame based, to find out a best method which can achieve optimal trade-off between internal memory usage and external memory access. The analysis shows that the SVC decoding needs 88...
متن کاملParallel H.264 Decoding Strategies for Cell Broadband Engine
Faculty of Electrical Engineering, Mathematics and Computer Science CE-MS-2010-04 How to develop efficient and scalable parallel applications is the key challenge for emerging many-core architectures. We investigate this question by implementing and comparing two parallel H.264 decoders on the Cell architecture. It is expected that future manycores will use a Cell-like local store memory hierar...
متن کاملReal-time Video Coding under Power Constraint Based on H.264 Codec
In this paper, we propose a joint power-distortion optimization scheme for real-time H.264 video encoding under the power constraint. Firstly, the power constraint is translated to the complexity constraint based on DVS technology. Secondly, a computation allocation model (CAM) with virtual buffers is proposed to facilitate the optimal allocation of constrained computational resource for each f...
متن کامل