This class of theories have the property that they are invariant under so called conformal transformations, that. Cadence conformal equivalence checking library community. The generators of infinitesimal conformal transfermations are. Conformal mapping is the name given to the process of using complex variables to map one figure onto another. Cadence conformal logic equivalence checker lec is a formal logic equivalence checking tool. The collection of lines and circles in c f1gis stabilized by linear fractional transformations, and is acted upon transitively by them. The quartus ii software may not preserve the hierarchies in black box entities with tristate buffers, and moves the tristate buffer to the io of the design. Generally, this subject deals with the manner in which point sets are mapped between two different analytic domains in the complex plane.
To understand how to use conformal lec to formally check the equivalence between. Consider the real valued function u and the analytic map w fz. Read conformal mapping by zeev nehari available from rakuten kobo. Conformal lec gui debug tool gave some useful information, but the schematic. Introduction to conformal field theory antonin rovai introduction these lecture notes consist of an elementary introduction to conformal field theory cft. Conformal smart logic equivalence checker is the nextgeneration equivalency checking solution. System modes conformal operates in two system modes. Conformal mapping or conformal transformation in mathematics, a mapping of one figure region to another in which any two curves intersecting at a certain angle at an interior point of the first figure are transformed into. If you didnt know, conformals very own ae team put together some cool training materials for their customers based on large demand to help both new and intermediate users. Logical equivalence checking tools, such as formality and conformal. Average of 4x runtime improvement with the same compute resources over existing solution. Turpin 2003 which argued that even a reachable x might be safe if its not read when it is.
Equivalence checking using cadence conformal lec formal hardware verification. Cadence conformal equivalence checker ec makes it possible to verify and debug. Synapticads gatesonthefly gof can be used to easily find and view these specific. Conformal mapping article about conformal mapping by the. Conformal lec software support this style of pragma differently. Strategies for runtime reduction product version conformal 15. With massively parallel architecture and adaptive proof technology, the conformal smart lec delivers dramatic turnaround time improvements in equivalence checking by.
To understand how to use conformal lec to formally check the equivalence between your vlsi designs in the design. Lecture 16 applications of conformal mapping mathga 2451. Mathematica examples of conformal maps solutions to 2d laplace from analytic functions real part in28. November 20, 2008 conformal same form or shape mapping is an important technique used in complex analysis and has many applications in di erent physical situations. Laura universidad nacional del sur, 8000 bahia bianca, argentina and institute of applied mechanics conicet elsevier amsterdam oxford new york tokyo 1991. Pdf evaluation of 3d conformal radiotherapy for prostate cancer. Conformal lec training basic advance eljqpv71kw41 idocpub. This tutorial provides a quick gettingstrated guide to cadence conformal. In designs with combinational feedback loops, the conformal lec software may incorrectly insert extra, unmapped cut points in the revised netlist.
This tool visualizes any complexvalued function as a conformal map by assigning a color to each point in the complex plane according to the functions value at that point. Pdf best known methods for using cadence conformal lec at. Add annotations to schematics and pdf for easy documentation. In this paper, we refer only to domains that are simply i. Conformal eco steps r1 vs r2 compare lec golden rtl and modified rtl.
Section 4 of this tutorial describes how to formally verify that the synthesized design is functionally equivalent to the rtl description using lec. This is a brief introduction on how to using conformal lec tool for your ic design. This helped in reduction of extra and unreachable of dffs but no change in extra of pi and po. Chalkboard photos, reading assignments, and exercises solutions pdf 2.
To the novice, it may seem that this subject should merely be a simple reworking of standard. Lines and circles and linear fractional transformations 2. Division of applied mathematics brown university rhode island, providence 02912 abstract the study of 2d shapes and their similarities is a central problem in the. Citeseerx document details isaac councill, lee giles, pradeep teregowda. Help on conformal lec flow using synopsyss design compiler netlist. Introducing conformal smart lec cadence design systems. Hi, i am reading in the libraries to cadence conformal to do equivalence checking. Mod04 lec01 introduction to formal methods for design verification. In this paper we will explore how to use the cadence conformal lec tool. This model is formulated in terms of a twodimensional lattice whose lattice sites represent. Beginning with a brief survey of some basic mathematical concepts, this graduatelevel text proceeds to discussions of a selection of mapping functions, numerical methods and mathematical models, nonplanar fields and nonuniform media, static fields in electricity and magnetism, and. Conformal mapping and its applications suman ganguli1 1department of physics, university of tennessee, knoxville, tn 37996 dated. Pdf detection of anomalous trajectories is an important problem for which many.
This section can be skipped if one chooses to use formality for equivalence checking. We assume the reader is familiar with the basics of complex numbers and complex arith. By ensuring that timing constraints are valid throughout the entire design process, and by pinpointing real design issues early, quickly, and. General principle we now introduce the notion of conformal mapping. In this paper we will explore how to use the cadence conformal lec tool capabilities to verify different types of designs, based on the experiences of various projects at intel.
The company produces software, hardware and silicon structures for designing integrated circuits, systems on chips. Encounter conformal equivalence checker cadence is transforming the global electronics industry through a vision called eda360. Now, a conformal mapping is defined to be a locally anglepreserving mapping, which would explain the observations 1 and 2. Encounter conformal technology to shorten overall design cycle times and minimize silicon respins, designers need productionproven validation tools. In the new two dimensional space with coordinates u, v the figure will usually. Digital logic synthesis and equivalence checking tools.
Worked examples conformal mappings and bilinear transfor. One simple system where this occurs is the socalled ising model. Cadence conformal smart lec is the nextgeneration equivalence checking solution. Combined theoretical and practical approach covers harmonic functions, analytic functions, the. This, however, is equivalent to being a holomorphic function whose derivative is everywhere nonzero. A mapping f c is said to b e c onformal atap oint z o 2 d if f is analytic at every p and 0 6 0. Lec takes verilogvhdl as the input language for the data path logic under. The identity function z shows how colors are assigned. Complex analysis and conformal mapping the term complex analysis refers to the calculus of complexvalued functions fz depending on a single complex variable z. Conformal equivalence checker cadence design systems. Conformal lec training basic advance ebook download as pdf file.
An overview 47 where, z is defined in the complex zplane xy plane, shown in fig. Solving verilog xissues by sequentially comparing a. With an applicationdriven approach to design, our software, hardware, ip, and services help. Download fulltext pdf 2dshape analysis using conformal mapping conference paper pdf available in international journal of computer vision 701. In the pictures we will also see what happens at the critical points. In the lec system, we employ a learningdriven approach for. Conformal lec tool between the synthesized netlist and the rtl. Its intimidating to dive into this fullblown schematic and catch the culprit gate.
Im trying to setup flow for using conformal lec with dc netlist, and facing few problems in mapping. Best known methods for using cadence conformal lec at intel. The schematic from lec debug tool printed out too many gates and connections. Conformal lec schematic conformal lec gui debug tool gave some useful information, but not sufficient and efficient. Compared points equi ent nonequi u al ent t vhdl rev i sed. One of our goals is the celebrated riemann mapping theorem. Offering key technologies of massive parallelism and adaptive proof, conformal smart lec improves runtime by an average of 4x compared to existing solutions with the same compute resources. Cadence conformal suite of tools contains a tool called logic equivalence checker or lec. It offers the only complete equivalence checking solution available for verifying soc designsfrom rtl to final lvs netlist spiceas well as fpga designs.
I am getting extra in pi and po while doing lec with conformal. Methods and applications roland schinzinger electrical engineering department, university of california, irvine, ca 92717, u. Encounter conformal verification technologies offer the most comprehensive and trusted solutions for equivalency checks, timing constraints management, clockdomaincrossing synchronization. Any simply connected domain in the complex plane, except the entire complex plane itself, can. In particular, we will focus on the conformal ultra capability for verifying complex datapath synthesis and layout. Conformal coating processes may involve the following ehs issues.
Open library is an initiative of the internet archive, a 501c3 nonprofit, building a digital library of internet sites and other cultural artifacts in digital form. The angle between any intersecting curves is preserved under conformal mapping. In this chapter we will be concerned with conformal maps from domains onto the open unit disk. Employee exposure to the solvent andor resin materials fire safety considerations if the solvent is flammable or combustible air emissions from the volatilized solvent e. Conformal lec failures debug by using gates on the fly. To know that the map is conformal, we also need to know that the curves in the mesh are moving at the same speed at any given point of intersection. Conformallec preferences window lec add compared points all lec compare lec compare done. R2 vs g2 new rtl with eco fix compared with synthesized netlist of r2 for equivalence.
Worked examples conformal mappings and bilinear transformations example 1 suppose we wish to. Conformal mapping conformal mapping is a topic of widespread interest in the field of applied complex analysis. R1 vs lay1 compare golden pnr netlist with original rtl. Conformal mapping ebook by zeev nehari rakuten kobo. With massively parallel architecture and adaptive proof technology, the conformal smart lec delivers dramatic turnaround time improvements in equivalence checking by over 20x for rtltogate comparisons.
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