Abstract
The speculation yield and dependence height heuristic is extended to explicitly minimize the penalty suffered by paths other than the execution paths. Since the execution time of a path is determined by the number of cycles spent between a path's entrance and exit in the scheduling scope, the heuristic attempts to eliminate unnecessary speculation that delays any path's exit. Such control of speculation makes the performance less sensitive to the actual path taken at run time. Thus, the proposed speculative hedge has a strong emphasis on achieving minimal delay to all exits that controls over-speculation in a superblock/hyperblock scheduler.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 70-79 |
| Number of pages | 10 |
| Journal | Proceedings of the Annual International Symposium on Microarchitecture |
| State | Published - Dec 1 1996 |
| Event | Proceedings of the 1996 29th Annual IEEE/ACM International Symposium on Microarchitecture, MICRO-29 - Paris, Fr Duration: Dec 2 1996 → Dec 4 1996 |
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ASJC Scopus subject areas
- Hardware and Architecture
- Software
Cite this
Speculative hedge : Regulating compile-time speculation against profile variations. / Deitrich, Brian L.; Hwu, Wen-Mei W.
In: Proceedings of the Annual International Symposium on Microarchitecture, 01.12.1996, p. 70-79.Research output: Contribution to journal › Conference article
}
TY - JOUR
T1 - Speculative hedge
T2 - Regulating compile-time speculation against profile variations
AU - Deitrich, Brian L.
AU - Hwu, Wen-Mei W
PY - 1996/12/1
Y1 - 1996/12/1
N2 - The speculation yield and dependence height heuristic is extended to explicitly minimize the penalty suffered by paths other than the execution paths. Since the execution time of a path is determined by the number of cycles spent between a path's entrance and exit in the scheduling scope, the heuristic attempts to eliminate unnecessary speculation that delays any path's exit. Such control of speculation makes the performance less sensitive to the actual path taken at run time. Thus, the proposed speculative hedge has a strong emphasis on achieving minimal delay to all exits that controls over-speculation in a superblock/hyperblock scheduler.
AB - The speculation yield and dependence height heuristic is extended to explicitly minimize the penalty suffered by paths other than the execution paths. Since the execution time of a path is determined by the number of cycles spent between a path's entrance and exit in the scheduling scope, the heuristic attempts to eliminate unnecessary speculation that delays any path's exit. Such control of speculation makes the performance less sensitive to the actual path taken at run time. Thus, the proposed speculative hedge has a strong emphasis on achieving minimal delay to all exits that controls over-speculation in a superblock/hyperblock scheduler.
UR - http://www.scopus.com/inward/record.url?scp=0030407703&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0030407703&partnerID=8YFLogxK
M3 - Conference article
AN - SCOPUS:0030407703
SP - 70
EP - 79
JO - Proceedings of the Annual International Symposium on Microarchitecture, MICRO
JF - Proceedings of the Annual International Symposium on Microarchitecture, MICRO
SN - 1072-4451
ER -