## 抄録

We revisit voltage partitioning problem when the mapped voltages of functional units are predetermined. If energy consumption is estimated by formulation E=CV^{2}, a published work claimed this problem was NP-hard. We clarify that it is polynomial solvable, then propose an optimal algorithm, its time complexity is O(nk+k^{2}d) which is best so far, where n, k, and d are respectively the numbers of functional units, available supply voltages, and voltages employed in the final design. In reality, considering leakage power the energy-voltage curve is not simply monotonically increasing and there is still no optimal polynomal polynomial time algorithm. However, under the assumption that energy-voltage curve is quasiconvex, which is also a good approximation to actual situation, the optimal solution can be got in time O(nk^{2}). Experimental results show that our algorithms are more efficient than previous works.

本文言語 | English |
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ホスト出版物のタイトル | Proceedings of the ACM Great Lakes Symposium on VLSI, GLSVLSI |

ページ | 115-118 |

ページ数 | 4 |

DOI | |

出版ステータス | Published - 2010 |

イベント | 20th Great Lakes Symposium on VLSI, GLSVLSI 2010 - Providence, RI 継続期間: 2010 5月 16 → 2010 5月 18 |

### Other

Other | 20th Great Lakes Symposium on VLSI, GLSVLSI 2010 |
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City | Providence, RI |

Period | 10/5/16 → 10/5/18 |

## ASJC Scopus subject areas

- 工学（全般）