DLP+TLP processors for the next generation of media workloads
Document typeConference report
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Rights accessOpen Access
Future media workloads will require about two levels of magnitude the performance achieved by current general purpose processors. High uni-threaded performance will be needed to accomplish real-time constraints together with huge computational throughput, as next generation of media workloads will be eminently multithreaded (MPEG-4/MPEG-7). In order to fulfil the challenge of providing both good uni-threaded performance and throughput, we propose to join the simultaneous multithreading execution paradigm (SMT) together with the ability to execute media-oriented streaming /spl mu/-SIMD instructions. This paper evaluates the performance of two different aggressive SMT processors: one with conventional /spl mu/-SIMD extensions (such as MMX) and one with longer streaming vector /spl mu/-SIMD extensions. We will show that future media workloads are, in fact, dominated by the scalar performance. The combination of SMT plus streaming vector /spl mu/-SIMD helps alleviate the performance bottleneck of the integer unit. SMT allows
CitationCorbal, J., Espasa, R., Valero, M. DLP+TLP processors for the next generation of media workloads. A: International Symposium on High Performance Computer Architecture. "HPCA: The Seventh International Symposium on High Performance Computer Architecture: 19-24 January 2001, Monterrey, Nuevo Leone, Mexico: proceedings". Nuevo Leone: Institute of Electrical and Electronics Engineers (IEEE), 2001, p. 219-228.