HyperLink   Sentinel Scheduling for VLIW and Superscalar Processors.
Paper of IMPACT - Cited Greater Than 150 Times
Publication Year:
  Scott A. Mahlke, William Y. Chen, Wen-mei Hwu, B. Ramakrishna Rau, Michael S. Schlansker
  Proceedings of the Fifth Int'l Conference on Architecture Support for Programming Languages and Operating Systems (ASPLOS-V), Boston, MA, pp.238-247, Oct. 12-15, 1992

Speculative execution is an important source of parallelism for VLIW and superscalar processors. A serious challenge with compiler-controlled speculative execution is to accurately detect and report all program execution errors at the time of occurrence. In this paper, a set of architectural features and compile-time scheduling support referred to as sentinel scheduling is introduced. Sentinel scheduling provides an effective framework for compiler-controlled speculative execution that accurately detects and reports all exceptions. Sentinel scheduling also supports speculative execution of store instructions by providing a store buffer which allows probationary entries. Experimental results show that sentinel scheduling is highly effective for a wide range of VLIW and superscalar processors.