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IEEEPACT
2002
IEEE

Cost Effective Memory Dependence Prediction using Speculation Levels and Color Sets

10 years 3 months ago
Cost Effective Memory Dependence Prediction using Speculation Levels and Color Sets
Memory dependence prediction allows out-of-order issue processors to achieve high degrees of instruction level parallelism by issuing load instructions at the earliest time without causing a significant number of memory order violations. We present a simple mechanism which incorporates multiple speculation levels within the processor and classifies the load and the store instructions at run time to the appropriate speculation level. Each speculation level is termed as a color and the sets of load and store instructions are called color sets. We present how this mechanism can be incorporated into the issue logic of a conventional superscalar processor and show that this simple mechanism can provide similar performance to that of more costly schemes resulting in reduced hardware complexity and cost. The performance of the technique is evaluated with respect to the store set algorithm. At very small table sizes, the color set approach provides up to 21 % better performance than the sto...
Soner Önder
Added 15 Jul 2010
Updated 15 Jul 2010
Type Conference
Year 2002
Where IEEEPACT
Authors Soner Önder
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