System Level Estimation of Interconnect Length in the Presence of IP Blocks

Taghavi, Taraneh; Nahapetian, Ani; Sarrafzadeh, Majid

doi:10.1109/isqed.2007.154

Cited by 3 publications

(2 citation statements)

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“…Their work, however, lacks from considering the complexity of the circuits into account and hence the average wirelength obtained form these techniques overestimate the actual wirelength for circuits with large chip area. We have proposed a methodology to estimate the average wirelength in [1,2,4,6], which is based on a hierarchical placement of the circuit into a square Manhattan grid in the presence of blockages. This methodology is very similar to Donath's method for estimating total wirelength.…”

Section: Wirelength Estimation In Presence Of Ip Blocksmentioning

confidence: 99%

“…The probabilistic analysis to extract transparent-block and detour parts of interconnect length for horizontally, vertically and diagonally adjacent sub-circuits have been done in [1] completely and so is omitted here for brevity. For the probability distribution of wires, the assumption of uniform probability distribution for standard cells from [2,6,10] seems to be inaccurate since it does not consider the optimal placement tools behavior to place connected cells closer to each other.…”

Section: Wirelength Estimation In Presence Of Ip Blocksmentioning

confidence: 99%

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Tutorial on congestion prediction

Taghavi

Dabiri

Nahapetian

et al. 2007

Proceedings of the 2007 International Workshop on System Level Interconnect Prediction

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With the increasing sophistication of circuits and specifically in the presence of IP blocks, new estimation methods are needed in the design flow of large-scale circuits. Up to now, a number of post-placement congestion estimation techniques in the presence of IP blocks have been presented.In this paper we present a unified approach for predicting wirelength, congestion and delay parameters early in the design flow. We also propose a methodology to integrate these prediction methods into the placement framework to handle the large complexity of the designs.

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Section: Wirelength Estimation In Presence Of Ip Blocksmentioning

confidence: 99%

Section: Wirelength Estimation In Presence Of Ip Blocksmentioning

confidence: 99%