Pritpal S. Ahuja, Kevin Skadron, Margaret Martonosi, Douglas W. Clark  Home/Search
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Abstract: Even sophisticated branch-prediction techniques necessarily suffer some mispredictions, and even relatively small mispredict rates hurt performance substantially in current-generation processors. In this paper, we investigate schemes for improving performance in the face of imperfect branch predictors by having the processor simultaneously execute code from both the taken and not-taken outcomes of a branch. This paper presents data regarding the limits of multipath execution, considers... (Update)
Context of citations to this paper: More
.... so recently, more selective approaches have been advocated, where multi path execution is only used for hard to predict branches [1 6]. Predicated execution is a software method for achieving a similar effect [7, 8] The third approach is aimed at reducing the penalty...
...suffer a substantial number of mispredictions. Since the delays caused by conditional branch mispredictions remain a serious problem, we [1] and other groups [7, 12, 13, 31, 32, 33] have investigated a different kind of remedy: the simultaneous execution of both the taken and...
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BibTeX entry: (Update)
P.S. Ahuja, K. Skadron, M. Martonosi, and D.W. Clark. Multi-path execution: Opportunities and limits. In International Conference on Supercomputing, July 1998. http://citeseer.ist.psu.edu/ahuja98multipath.html More
@inproceedings{ ahuja98multipath,
author = "Pritpal S. Ahuja and Kevin Skadron and Margaret Martonosi and Douglas W. Clark",
title = "Multipath Execution: Opportunities and Limits",
booktitle = "International Conference on Supercomputing",
pages = "101-108",
year = "1998",
url = "citeseer.ist.psu.edu/ahuja98multipath.html" }
Citations (may not include all citations):214 Combining branch predictors - McFarling - 1993
186 Exploiting choice: Instruction fetch and issue on an impleme.. - Tullsen, Eggers et al. - 1996
177 Evaluating future microprocessors: the SimpleScalar tool set - Burger, Austin et al. - 1996
146 A comparison of dynamic branch predictors that use two level.. - Teh, Patt - 1993
82 Assigning confidence to conditional branch predictions - Jacobsen, Rotenberg et al. - 1996
54 Digital 21264 sets new standard (context) - Gwennap - 1996
47 Disjoint eager execution: An optimal form of speculative exe.. - Uht, Sindagi - 1995
45 Threaded multiple path execution - Wallace, Calder et al. - 1998
40 Interleaving: A multithreading technique targeting multiproc.. - Laudon, Gupta et al. - 1994
39 Analysis of branch prediction via data compression - Chen, Coffey et al. - 1996
36 Selective eager execution on the PolyPath Architecture - Klauser, Paithankar et al. - 1998
30 Improving prediction for procedure returns with return-addre.. - Skadron, Ahuja et al. - 1998
30 Wrong-path instruction prefetching - Pierce, Mudge - 1996
26 Selective dual path execution - Heil, Smith - 1996
19 Limited dual path execution (context) - Tyson, Lick et al. - 1991
9 Recovery requirements of branch prediction storage structure.. (context) - Jourdan, Stark et al. - 1997
8 Branch prediction and simultaneous multithreading - Hily, Seznec - 1996
1 Tradeoffs among branch prediction (context) - Skadron, Ahuja et al. - 1998
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