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Erschienen in:
2007 | OriginalPaper | Buchkapitel
A Parallel Infrastructure on Dynamic EPIC SMT and Its Speculation Optimization
verfasst von : Qingying Deng, Minxuan Zhang, Jiang Jiang
Erschienen in: Parallel and Distributed Processing and Applications
Verlag: Springer Berlin Heidelberg
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SMT(simultaneous multithreading) processors execute instructions from different threads in the same cycle, which has the unique ability to exploit ILP(instruction-level parallelism) and TLP(thread-level parallelism) simultaneously. EPIC(explicitly parallel instruction computing) emphasizes importance of the synergy between compiler and hardware. Compiler optimizations are often driven by specific assumptions about the underlying architecture and implementation of the target machine. Control and data speculations are effective ways to improve instruction level parallelism. In this paper, we present our efforts to design and implement a parallel environment, which includes an optimizing, portable parallel compiler OpenUH and SMT architecture EDSMT based on IA-64. Meanwhile, its speculation is also reexamined.