Optimal replacement is NP-hard for nonstandard caches
Optimal replacement is NP-hard for nonstandard caches
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对于非标准缓存,最佳替换是 NP 困难的
DOI:
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发表时间:
2004
影响因子:
3.7
通讯作者:
R. Enbody
中科院分区:
文献类型:
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作者:
Mark Brehob;S. Wagner;E. Torng;R. Enbody
When examining a new cache structure or replacement policy, the optimal policy is a useful baseline. We prove that finding the optimal schedule is NP-hard for any but the simplest of caches, and that no polynomial-time approximation scheme exists for this problem unless P=NP.