Architectural-Level Prediction of Interconnect Wirelength and Fanout Kwangok Jeong, Andrew B. Kahng and Kambiz Samadi UCSD VLSI CAD Laboratory abk@cs.ucsd.edu
... Feng Shui, Dragon Rent exponent extraction Linear regression Each point corresponds to one level in partitioning or placement Experimental Observation (1) ...
single cell row with n movable cells C[i] with fixed left-to-right order (but ... of C[i] = sum over all nets N of contributions of C[i] to span(N) - fixed_span(N) ...
Title: On Relevance of Wire Load Models Author: Cadence Design Systems, Inc. Last modified by: Puneet Gupta Created Date: 3/27/2001 8:12:10 AM Document presentation ...
Correlation Extraction. Optimization. Initialization Scheme. Experimental Results ... After mismatch extraction, a regression function is fit on data ...
Practical Applications: A Priori Total wirelength estimation ... Definition and Applications ... Used ISPL for two practical applications: Total wirelength estimation ...
BB(t) ... outside BB(t). Iterative Estimation Method. If Congestion_Factor(t) a ... expand BB(t) by 1 grid in the least congested direction. recalculate the ...
Intrinsic Shortest Path Length: A New, Accurate A Priori ... Reduce data clutter by dividing data into buckets and averaging the results within each bucket ...
Detours that have to be made around the obstacles ... Detour WL dependence on position of, e.g., P2 ... Detour WL. yP2 (a,b) Resultant Wirelength. of Two-terminal Nets ...
... A Concept and Method for Better Min-Cut Placements. Andrew B. Kahng ... Cut ... Cuts = 2, Wirelength = 5. B1. B2. Placement Feedback. Traditional ...
Moore: Logic capacity doubles per IC every two years (1975) ... CPU time = 5234 sec, Area = 716.3 mm2, Dead space = 8.14%, total wirelength = 67786.3mm. ...
Global Routing plans approximate route of each net to ... Compared to Labyrinth. Reduce wirelength by 14.3% Reduce overflow by 91.7% Compared to Fengshui ...
Local Re-ordering. Segment-based Shifting ... Local re-ordering: ... Perform local re-ordering with 2 cells. Until no significant improvement in wirelength ...
Wirelength increase budget used to balance open CA decrease with short CA increase ... Input : Routed tree T, wirelength budget W, feasible routing region, set V of ...
1-Steiner Routing by Kahng/Robins. Perform 1-Steiner Routing by Kahng/Robins ... Kahng/Robins vs Borah/Owens/Irwin. Khang/Robins has better wirelength (16 vs ...
GTX: The MARCO GSRC Technology Extrapolation System. A. Caldwell, Y. Cao, A. B. ... Avant! Apollo or Cadence SE P&R tool: just another wirelength estimator ...
Hierarchical Dummy Fill for Process Uniformity. Supported by Cadence Design Systems, Inc. ... Hybrid hierarchical / flat filling app roach. Computational experience ...
Title: CSE241 VLSI Digital Circuits Winter 2003 Lecture 03:ASIC prototyping Subject: Lecture 07 Author: Andrew Kahng Last modified by: Cichy Created Date
International Symposium of Physical Design Sonoma County, CA April ... Xiaojian Yang Ryan Kastner Majid Sarrafzadeh. Embedded and ... max cong. Real ...
For example, given a hypergraph that is to be placed on a block, we partition the hypergraph into roughly two equal parts, and bisect the block accordingly.
Multi-Project Reticle Floorplanning and Wafer Dicing. Andrew B. ... Reticle floorplanning and wafer dicing problem. Conclusions and future research directions ...
FastPlace: Efficient Analytical Placement using Cell Shifting, Iterative Local Refinement and a Hybrid Net Model Natarajan Viswanathan Chris Chong-Nuen Chu
Post Processing to Reduce ... Edge extraction in the netlist Layout Coarsening Reduce Solution Space ... 3.0 Adobe Photoshop Image Microsoft Graph 97 Chart ...
Dr. Gabriel Robins. robins@cs.virginia.edu. www.cs.virginia.edu/robins ... Placement is obtained by either a constructive or an iterative method. i. j. Fij. i ...
Potential BEOL Yield Gains from Non-Tree Route Augmentation B. Liu, A. B. Kahng, I. Mandoiu open short Given routing tree Augmenting edges Scanline Speedup
Perform DFS on rooted-MST. Node ordering L = {s, a, b, c, e, f, ... Compute rooted shortest path tree on augmented Q. Practical Problems in VLSI Physical Design ...
A Priori System-Level Interconnect Prediction The Road to Future Computer Systems Dirk Stroobandt Ghent University Electronics and Information Systems Department
MM Heuristic. Initial set up: shortest path computation ... Iteration of MM Heuristic. Step 1. Capacity of ... First Iteration of MM Heuristic (cont) Step 2 ...
We can apply this new model to both min-cut partitioning and analytical placement algorithms. ... net-weighting during min-cut to map partitioning objective to ...
A Snap-On. Placement Tool. Israel Waldman. Introduction. What does placement mean? ... The framework of snap-on placement tool. Partitioning package. Simulated ...
Problem Formulation Input A clock gating domain contains a set of FFs which are controlled by the gated clock signals whose switching activities are the same.
Analytical Minimization of Signal Delay in VLSI Placement Andrew B. Kahng and Igor L. Markov UCSD, Univ. of Michigan http://www.eecs.umich.edu/~imarkov
Goto discrete relaxation. Slot Assignment legalization. Domino detailed placement. year ... Relaxation: improve the placement at each level by iterative optimization ...
C.A.D. Theme Technical Review June 2002. Potential BEOL Yield Gains from ... Enables implementation of line-scanning algorithm which speeds up greedy MRTA ...
Gij-1 is the common path resistance of paths (s, i) and (s, j) Analysis: Global Skew Reduction ... have maximum delay in at least one of the Monte Carlo SPICE ...
F.F. Dragan (Kent State) A.B. Kahng (UCSD) I. Mandoiu (Georgia Tech/UCLA) S. Muddu (Silicon Graphics) A. Zelikovsky (Georgia State) Global Buffering via Buffer Blocks ...
Semi-pruned insert -node at. IDF if variable live outside some basic block ... insert(R) into -options. foreach instruction i R. if( i is a destination of ...
Tung-Chieh Chen1, Tien-Chang Hsu1, Zhe-Wei Jiang1, and Yao-Wen Chang1,2 ... Adya, Markov, Villarrubia use filler (dummy) cells to control the whitespace ...
Algorithms that produce routable placements are more valuable (no ... 10 years old, no longer representative (Alpert 98) row-based layouts use variable-die ...
International Symposium of Physical Design Sonoma County, CA April 2001. ER. UCLA ... International Symposium of Physical Design Sonoma County, CA April 2001 ...
3D CMP and 3D IC Physical Design Flow Jason Cong and Guojie Luo University of California, Los Angeles {cong, gluo}@cs.ucla.edu Outline Design Driver 3D Chip ...
ELEN 468 Advanced Logic Design Lecture 28 Interconnect Timing Optimization III Dependence on Steiner Tree Rectilinear Steiner Minimum Tree Given a signal net, find ...
Intel Corporation Hillsboro, OR 97124 Sachin S. Sapatnekar University of Minnesota Minneapolis, MN 55455 International Symposium on Physical Design San Francisco