Using xyce


  • io Xyce, Spice Circuit Model resistances, via diameters voltage drop, peak current Abaqus, Sierra, CM/ CFD Model material props, boundary, initial conditions temperature, stress, flow rate All based on iterative analysis of a computational model for phenomenon of interest I am attempting to recompile the BSIM CMG models as they are simulating slowly, probably due to a lack of specification for bias-independent model parameters in the verilog-a code. Simply insert the probe into the meat and the smoker will alert you when the meat has been cooked to a pre-determined internal meat temperature. Xyce has been designed as a SPICE-compatible, high-performance analog circuit simulator, and has been written to support the simulation needs of the Sandia National Laboratories electrical designers. Apart from being an analogue electronic This document is the Xyce Circuit Simulator developer guide. We - and our partners - use cookies to deliver our services and to show you ads based on your interests. com XYCE is a new SPICE-compatible circuit simulator written by Sandia from the scratch. 75 5 How does using a word correctly diminish the Holocaust? As a Jew I find it revisionist to redefine a word to represent the end result of the Shoah when they were concentration camps before they were death camps. For information on using Xyce please XyceTM Users’ Guide Object-oriented code design and implementation using modern coding practices that ensure that the Xyce Parallel Electronic Simulator will be maintainable and extensible far into the future. Sep 27, 2017 Simulate Electronic Circuit using Python and the Ngspice / Xyce Simulators. What are the benefits of PySpice over Ngspice / Xyce ? 1. As such, having software quality engineering (SQE) procedures 1. Xyce TM Parallel Electronic Simulator Biological Pathway Modeling and Simulation Richard L. Documents associated with the current release of Xyce available as individual files. I wish I Ngspice circuit simulator - Simulation Environments. This manual describes the use of the Xyce Parallel Electronic Simulator. When using the new time integrator (e. Made using KORG M01D on 3DS. Jun 25, 2019 June 3, 2019 — The Xyce™ team is pleased to announce the release of Xyce™ Version 6. Mining temporal patterns are important issues in enterprise data science. A PHYSICS-BASED COMPACT MODEL FOR THERMOELECTRIC DEVICES A Thesis Submitted to the Faculty of Purdue University by Kyle Conrad In Partial Ful llment of the xyce free download. To date, Xyce has not been ported to GPU, providing a potential optimization opportunity View Kenneth Kambour’s profile on LinkedIn, the world's largest professional community. Initial support of the Xyce simulator. In addition to using KiCad for the design of the dev kit, we also used a free software tool called Qucs-S and the free software SPICE-compatible simulation kernel called Xyce to simulate our headphone detect circuit, which included a zener diode used to protect the respective GPIO from too high or too low of input voltage from the audio codec A goal of the Xyce development team is for Xyce to be SPICE-compatible. Xyce is a parallel code in the most general In this article we introduce Xyce, a SPICE-compatible parallel electronic circuit simulator developed at Sandia National Laboratories, USA. 12, 2014 The crossbar can be modeled using multiple fast approximate numerical models including both analytic noise models as well as experimentally derived lookup tables. The link to the ngspice backend is well elaborated and several circuits could be simulated with the outputs passed back internally to QUCS-S for evaluation. For gigs or other inquiries mail: hello [at] xyce . Let me talk about the No answer first. As a starting point, I'm simply trying to recompile the example provided by Xyce using the following command: Small homage to two of the sexiest boys in the Dutch chip scene (sorry Men of Mega). A slower, but more accurate circuit simulation of the devices using the parallel spice simulator Xyce is also being developed and will be included in a future release. The Digital Electric Smoker from Char-Broil allows the user to take the guess work out of smoking using its washable and removable integrated meat probe. 11. SAND REPORT SAND2008-6461 Unlimited Release Printed February 2009 Xyce TM Parallel Electronic Simulator Users’ Guide, Version 4. You can use Behavioral Modeling in the domain of analog simulation to model new device types and for black-box modeling of complex systems. irokos 4chpcm love is our homage to the Amiga and it's awesome crossbar can be modelled using a fast approximate numerical model as well as a slower, but more accurate circuit simulation of the devices (to be using the parallel spice simulator Xyce documented/debugged in a future release). danone 12. 663482 21. The version of Open MPI installed on my system is at a different path and a different version compared to the one Xyce was compiled with. This is Xyce, although it probably doesn’t have full Verilog-AMS support. This development has focused on improving capability over the Using this dialogue enter the absolute address of the Ngspice, Xyce or SPICE OPUS executable program code from the keyboard or by pressing the appropriate Open File Select button. 15. Keiter, Ting Mei, Thomas V. This release fixes a number of bugs in Xyce™  Xyce is designed and written from the ground up to support large-scale parallel computing architectures. ella 16. . thirteen 23. A quick warning: there are challenges associated with compiling using the limited memory on a Pi, and this project will take about a half day to complete, even on a Raspberry Pi 3. ZOMG NEW ALBUM? NEW ALBUM! A brand new xyce album with 15 tracks using many platforms as: pop by xyce guerre – xm (4 tracks weirdly enough) yogourt – xm dix – xm drone64 – c64 6 channels demise – […] Upgrade to Xfce 4. Xfce Desktop Environment. To tackle such problems, the massively-parallel, electronic circuit simulator, Xyce TM [10], is being adapted to address biological problems. Xyce does not compile on systems with only 1GB of memory. in developing the Visualization Toolkit (VTK), a cross-platform graphics and visualization software suite. Regarding the Qucs current and differential voltage probes. 3. (*) PySpice is licensed under GPLv3 therms. 5 Effect of total training time in Xyce with change in number of cores to train a . Start by updating and upgrading your distribution. Verilog-A is a vague analog-only subset of the Verilog-AMS standard. 11 Building Guide. 11 Xyce Parallel Electronic Simulator Users’ Guide, Version 6. Schiek, Elebeoboa E. That's something a user gets to set in /etc/makepkg. Electronic circuit simulators distributed under a free software license are available from several GNU Circuit Analysis Package (Gnucap); Ngspice, including digital XSPICE; Quite Universal Circuit Simulator (Qucs); Xyce, capable of solving extremely By using this site, you agree to the Terms of Use and Privacy Policy. Photo of ABQ Trolley Co - "07. framboise 17. If the watch winder does its job correctly, it shouldn't cause any more wear to an automatic watch than a person wearing it normally. Xyce is a parallel code in the most general sense of the phrase - a message passing Object-oriented code design and implementation using modern coding practices. Xyce and Trilinos are compiled using @article{osti_1415117, title = {Zener Diode Compact Model Parameter Extraction Using Xyce-Dakota Optimization. Check out xyce here: https://soundcloud. In addition, Verilog-A models may be processed into Xyce-compatible C++ code using the ADMS model compiler with the Xyce/ADMS back-end. How is PySpice interfaced with Xyce ? 1. The simulations are performed on a single node of a small cluster, where each node has a dual-socket/quad-core Intel Xeon R E5520 2. However, I can not figure out how to run a single test from a particular netlist file, such as IEEE_14Bus_GenBusDevice_PQPFormat. PySpice is a free and open source (*) Python module which interface Python to the Ngspice and Xyce circuit simulators. Xyce also leverages Sandia's open-source solver library, Trilinos, which includes a number of circuit-specific solvers, such as the KLU direct solver. Model developers can implement their models over the i-MOS platform to promote their acceptance and obtain user feedback. We also generally shouldn't assume the source In order to take advantage of the Xyce simulation frame-work, we create circuit abstractions of biological elements and construct netlist les that are executed using Xyce [9]. 1 Eric R. It also describes the memristor-based crossbar using a finite driver at the  "S" suffix in this build means "spice4qucs" Examples could be found at examples/ ngspice and examples/xyce subdirectories. 2 and the OpenXyce creator did not import the new release. Object -oriented code design and implementation using modern coding practices. The documentation is available on the PySpice Home Page. g. Download Xyce is similar to SPICE in that it is an analog circuit simulator, and . The viscous terms can be optionally included or excluded. 98 ($0. Jun 11, 2018 For the reasons above a need emerged for a Spice BJT model in [11], ngspice [ 12] and Xyce [13] from the QUCS-S domain using its  4. While it is in many respects a research  Also, in your xyce PKGBUILD, you don't want to specify the "-j$(nproc)" options. 04 or 14. FileMaker 13’s charting functionality is a powerful toolset in which to create visual summaries of the data. Formulated Transient, AC and DC analysis using three different open simulators namely XYCE, MSIM and GNUCAP Designed standard cells, verified their functionality, compared and optimized the delay Simulate electronic circuit using Python and the Ngspice / Xyce simulators - 1. Answers to frequently asked questions. Which version of Python is Using the Yakopcic behavioral model, a successful simulation of 8000 memristors in a single crossbar in LTSpice was reported in [27], and a 15,720 memristor crossbar was simulated in Xyce [28]. With its modular and flexible design, Xyce applies abstract V1. In addition, Sandia National Laboratories collaborates with Kitware, Inc. Results presented in this section are generated by using Xyce (post release 5. grey atari 15. Xyce has been designed from the 'ground up' to be a SPICE-compatible, distributed memory parallel circuit simulator. Stream Tracks and Playlists from xyce on your desktop or mobile device. We present performance evaluations of Basker on the Intel SandyBridge and Xeon Phi platforms using circuit and power grid matrices taken from the University of Florida sparse matrix collection and from Xyce circuit simulations. 3 2 0. Using AWS, expedite your high performance computing (HPC) workloads & save money by choosing from low-cost pricing models that match utilization needs. Additionally, it Below is my code to simulate4 my circuit's netlist using Xyce and then take the output file and plot it using gnuplot. It at least shows how to form an "alternate version" PKGBUILD. 2. In a previous post titled Simulating the Knowm M-MSS Memristor Model Using Qucs-S with Xyce, I presented the use of the open-source project Qucs-S – Quite Universal Circuit Simulator featuring the Spice4qucs branch and the Xyce Electronic Simulator as part of the Knowm Open-Source EDA Stack. It is recommended that anyone intending to build Xyce be familiar with editing text files and compiling programs on their target computer. 4× on Xeon Phi (32 cores) relative to KLU. cir. 16. openCarac openCarac aims to automatize the characterization of electronic circuits using your favourite Spice Xyce is a great free simulator. dmf) by xyce from desktop or your mobile device. The world didn't find out about them until it was too late. Pawlowski, Xyce simulation output data post processing with the Xyce script component and SPICE . We have over 1,000,000 porn videos, sorted by the biggest category database you will find. System preparation for using Xyce on a Raspberry Pi. 24 … N 1. when running with no -newdae command line option, or with -newdae on), Xyce will output at exactly the times you request in the output options; if the simulation advances past one or more requested output times in one integrator time step, Xyce will interpolate the solution to all requested time values Xyce is a great free simulator. It supports basic SPICE simulation types and has an advanced RF simulation features such as Harmonic balance simulation. This guide is intended for those interested in building Xyce from the source code. 10 Since Xfce 4. We’ve got loads of xxx porn movies & categories. Since that update, Sandia released Xyce 6. Can I run Ngspice using interpreter commands ? 1. oak 4. Or, search near a city, place, or address instead. Both inviscid and viscous terms are included. However, Xyce is designed for distributed parallel processing so I suspect it is going to do a lot better on the big simulations (and that's what I want it for). 73 Tracks. PySpice provides the interface to circuit simulators like Ngspice or Xyce. How is PySpice interfaced with Ngspice ? 1. com. Note Xyce was designed from scratch to be a parallel simulation code, written in C++ and using a message-passing implementation (MPI). comrades 6. I read your latest post concerning Qucs probes and their use with ngspice and Xycewith interest. 13. Ships from and sold by Amazon. conf. king 5. Listen to xyce in full in the Spotify app. Xyce has been de-signed from the “ground up” to be a SPICE-compatible, distributed memory parallel circuit simulator. If that's the case, you'll need to take my PKGBUILD as a starting point, and go from there. 1) and Trilinos release 10. Ngspice is a fork of the famous SPICE circuit simulator, while Xyce is a SPICE compatible simulator developed by the Sandia National Laboratories. Details. Xyce is an open source, SPICE-compatible, high-performance analog circuit simulator, capable of solving extremely large circuit problems. PySpice is more than just a ngspice wrapper. Using Xyce to model the circuit response due to Negative Announcing the Open Source Release of Xyce 6. [11], ngspice [12] and Xyce [13] from the QUCS-S domain using its schematic editor and visualization features. 270 9. ngen racer 8. Restaurants And this is the behavior for a xyce SR latch built with ideal NOR gates (not a fast pullup time but decent enough); note: These simulations are about 300ms long. 4chpcm love by xyce, released 14 January 2013 1. How are units handled ? 1. It only really exists in the minds of Cadence’s marketing department — because that was all they wanted at the s Hello BearSquad! I'm Solar from SolarPlayz! In this channel we do a lot of Fortnite: Battle Royale, ROBLOX, and many other video games! Subscribe to my YouTu Xyce is an open source, SPICE-compatible, high-performance analog circuit simulator, capable of solving extremely large circuit problems. A recording of that class can be viewed in Part 1 and Part 2: Using the Xyce Parallel Electronic Simulator, Part 1; Using the Xyce Parallel Electronic Simulator, Part 2 In addition, Verilog-A models may be processed into Xyce-compatible C++ code using the ADMS model compiler with the Xyce/ADMS back-end. These include serial, shared-memory and distributed-memory parallel platforms. Xyce 6. Basker achieves a geometric mean speedup of 5. If you're using a laptop or tablet, try moving it somewhere else and give it another go. If it works, great! If not, read I was in the same situation, i am 14, believe me, if u r a teenager i think there is nothing to worry about, thats what the doctor said, it is normal, and yes i think head and shoulders may have a part in it!, i think it is too strong for hair to manage, especially young hair lyk mine, if u live in england u would be familar with the soap brand/shop LUSH, my mum bought me a hormonal hair soap If it doesn't, and if Xyce really needs Trilinos compiled using the OpenMPI wrappers and all of those other additional options, that's outside the scope of a quick help with a single option. 3) Purchase Bitcoins in the amount equal to or greater than the Bitcoin Amount above using a credit card. The software is capable of solving extremely-large circuit problems on large-scale parallel computing platforms. The area of electronics devoted to investigate the propa- gation of single event transients  Nov 25, 2016 Xyce is a free software, SPICE-compatible, high-performance analog circuit simulator, capable of solving extremely large IN COLLECTIONS. Xyce, Spice Circuit Model resistances, via diameters voltage drop, peak current Abaqus, Sierra, CM/ CFD Model material props, boundary, initial conditions temperature, stress, flow rate Run Input Output 1 0. I want to use the Open MPI version to take advantage of multiple cores. pink's side of town 22. While it is in many respects a research code, Xyce is intended to be a production simulator. Groningen. 06. PRINT statements¶ Xyce simulation output data post processing uses an entirely different approach to that adopted by Ngspice and SPICE OPUS. and Wilcox, Ian Zachary and Sandoval, Andrew J and Reza, Shahed}, abstractNote = {This report presents a detailed process for compact model parameter extraction for DC circuit Zener diodes. 16 University of New Mexico campus" - Albuquerque, NM Try using Current Location search again. Learn more about PySpice. It was designed and written from scratch in C++, with modular, flexible design as a goal. How are Spice libraries handled ? 1. A A step-by-step screencast of the process of building the Xyce™ parallel electronic simulator under the Cygwin environment on Windows. This application note describes some known differences in syntax, parsing, and features between the HSPICE and Xyce circuit simulators that might be  I was informed what a possible fix would be and it worked. Note FileMaker Pro Advanced may not be available in all of the shipping languages of FileMaker Pro. Adding a device to Xyce. Xyce is a circuit simulator developed from scratch some time after the release of SPICE 3f5. In this article we introduce Xyce, a SPICE-compatible parallel electronic circuit simulator developed at Sandia National Laboratories, USA. • Xyce – a high performance Sandia developed SPICE compatible tool – “zero dimensional to half dimensional” – Single transistor to integrated circuits – Includes defect migration & reactions and charge change reactions by carrier capture & emission – defect production is an input For more information about using buttons with scripts, see Using buttons with scripts . Apart from being an analogue electronic If you create new files, I'd suggest to accept a full pathname on the commandline and specifying a path using ${CMAKE_CURRENT_BINARY_DIRECTORY} placing files in the source directory can lead to race conditions if multiple builds (in different build directories) use the same sourcecode checkout. How is the netlist defined ? 1. 91× on CPU (16 cores) and 7. 0 (production release) 2018-06-07. Feb 26, 2015 So here's a little note on how we (xyce) generally setup and arrange A screenshot of our song 'sourire' with malmen, because it looks cool. 12. Give it 5-15 minutes and you will receive a confirmation email. Stream phil collins & phil bailey - easy lover (. using apple motion for photography using apple motion for photography When reviewing photos using the LCD on the back of my camera, its fun to keep the navigation button held down and let the camera quickly zip through all the images. 2569 Followers. spark 13. Similar to the abstractions used in ux balance analysis, the o w of metabolic and genetic substrates are synonymous to the o w of current through an electrical circuit Xyce netlist for inverter (using MVS ModSpec/C++ model) ModSpec Model (C++ API) model supported in Xyce. I am using Xyce 6. At a recent summit at Stanford University, I heard a speech from Prof. 814 91. Prior experience using command line tools like configure, cmake and make is recommended. Listen to xyce now. Finally, a powerful expression capability is included in Xyce, allowing for the parameterization of existing models, or the implementation of user-defined behavioral models directly in the input file. Rankin, Roger P. Kenneth has 3 jobs listed on their profile. I need my resistor to be a function of a node voltage in order to simulate a battery. 17. 􏰀 Object-oriented code design and implementation using modern coding practices. 2 - a Python package on PyPI - Libraries. Pint makes Units Easy pip install pint PySpice - Simulate electronic circuit using Python and the Ngspice / Xyce simulators 33 PySpice is a Python module which interface Python and the Ngspice circuit simulator. By using our services, you’re agreeing to our Cookie Policy. I also want to include some parameters I am using for the SR latch made with ideal NOR gates in case they ring a bell for anyone. suddenly i see 20. Making chiptunes on various machines like the Atari ST, Amiga and PC (FT2). devenir mon defi 7. While the steps here are all carried out on Cygwin Rss. 0 November 4, 2013‚ Xyce, Sandia National Laboratories' SPICE-compatible parallel circuit simulator, is available for free public download for the first time. Although, you could treat it as such. grecque 18. In 2012, a class on the use of Xyce was presented to an audience of electrical designers at Sandia National Laboratories. genesis 14. Jure Leskovec and he mentioned that temporal patterns in customer digital footprints yield best accuracies in customer behavior prediction, cross-sale recommendation, etc. 6. 12 was just packaged for Xubuntu, you may encounter issues by using this PPA! Use it at your own risk! By using our website, you agree to the use of cookies as described in our Cookie Policy. Xyce is a parallel code in the most general sense of the phrase — a message passing parallel implementation — which allows it to run efficiently a wide range of computing platforms. 3. This version was forked by an anonymous github user, and has not been updated since last fall. I can do this is ngspice by setting R=2*v(1), for example. Before using this electronics Python module, you need to have an understanding of SPICE and how the engine you pick works. Is this possible in Xyce (or is there a workaround)? Additionally, the circuit simulator Xyce can couple to the optimization and uncertainty analysis framework Dakota [2] allowing one to find viable parameter spaces for normal cell functionality and required parameter ranges for unknown or di#cult to measure biological constants. Xfce is a lightweight desktop environment for UNIX-like operating systems. However, Xyce is not a derivative of SPICE. In this article, we describe a prototype cosimulation framework using Xyce, GHDL and CocoTB that can be used to analyze digital hardware designs in out-of-nominal environments. This item: Badia Coriander Seed, 12 Ounce $9. Unique to this bio-circuit simulator is the ability to simulate not just one or a set of genetic circuits in a cell, but many cells and their internal circuits interacting through a common environment. Xyce. We demonstrate current software methods and inspire future work via analysis of an open-source encryption core design. 6) Please Wait. May Prepared by Sandia National Laboratories Albuquerque, New Mexico 87185 and Livermore, California 94550 Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of One advantage of using the approach show in the pdf is that it will work with bothngspice and Xyce. The Xyce installation was in a location without admin permission (by default after  The Xyce™ Parallel Electronic Simulator has been written to support the simulation The code is a parallel code in the most general sense of the phrase – a  Simulate electronic circuit using Python and the Ngspice / Xyce simulators. 8. 5) Come back to this page, press the button below. 14. dreidl 3. FREE Shipping on orders over $25. It aims to be fast and low on system resources, while still being visually appealing and user friendly. ombres 10. I only want to ask when I remove the last line "subprocess. Yes and No. Check out our latest album: pop! Link down here! We occasionally create chipmusic on the Atari 1040STe, Amiga 500, PC, Commodore 64, and Gameboy. i-MOS is an open platform for model developers and circuit designers to interact. so libraries (dynamically loadable) compile standalone Xyce-ModSpec Interface DC sweep using Xyce Our website is made possible by displaying certain online content using javascript. Xyce also leverages the Trilinos solver library, an open-source solver library also under development at Sandia. Overview¶. sacre charlemagne 11. 4, Homebrew and gcc6. solves the same basic set of Kirchoff law equations. Xyce is an open source, SPICE-compatible, high-performance analog circuit simulator, capable of solving extremely large circuit problems developed at Sandia National Laboratories. We use cookies to offer you a better experience, personalize content, tailor advertising, provide social media features, and better understand the use of our  xyce. In the case of the Xyce Parallel simulator the number of processors installed in your computer system, must also be entered from the keyboard or selected using the In this blog post I demonstrate how to build Xyce from source so that it is able to do the Verilog-A model integration via the plug-in mechanism. By using our website, you agree to the use of cookies as described in our Cookie Policy. Xyce is purported to scale to 100s of nodes. FREE Nude Yoga Hotties, Siri Pornstar & Sarah Vandella Tongue Fuck & More! movies at Gonzo XXX Movies. Xyce is developed and mainted by Sandia National Laboratory, and is open source. 10. Xyce has been designed as a SPICE-compatible, high-performance analog circuit simulator capable of simulating electrical circuits at a variety of abstraction levels. Aug 15, 2016 In this article we introduce Xyce, a SPICE-compatible parallel electronic circuit simulator developed at Sandia National Laboratories, USA. I recently tried to fire it up on macOS Sierra and ran into a dependency issue. Netherlands. I installed the Xyce Executable on the CentOS and passed most tests in the Regression Suite following the guides posted on the website. In order to view the full content, please disable your ad blocker or Hello, I am writing to you for a problem that I have with these two mods: Customizable UI Replacer and Less Intrusive HUD. MiniAero is an explicit (using RK4) unstructured finite volume code that solves the compressible Navier-Stokes equations. Xyce was built up primarily using the Trilinos scientific library, and relies upon MPI to manage parallel workloads. 906 63. May 20, 2014 · Dynamic Charting in FileMaker. Behavioral Modeling is the process of developing a model for a device or a system component representing the behavior rather than from a microscopic description. }, author = {Buchheit, Thomas E. call('gnuplot')" the Sandia’s parallel circuit simulator, Xyce, can address large scale neuron simulations in a new way by greatly extending the range within which one can perform high-fidelity, multi-compartment neuron simulations. 4) Copy and paste the recipient key above and send the exact Bitcoin amount to that address. que 19. Other systems such as Linux and Windows would need to slightly modify these instructions, but the basic idea should be very similar. Open-source projects need to demonstrate significant advantage over commercial tools to capture users, Xyce seems to offer better performance on big designs. , when compared with other static customer profiles. 716 9. xyce is a collaboration project between xylo and cerror. Discussion threads at Github are  With the advent of multi-core technology, inexpensive large-scale parallel platforms are now Xyce has demonstrated scalable circuit simulation on hundreds of  sometimes, instructions to implement the code in Xyce will be provided. 83 / Ounce) In Stock. This report documents the implementation of neuron devices in Xyce, their use in simulation and analysis of neuron systems. You should also probably join the xyce-users group on googlegroups, where the Xyce developers monitor all questions and try to answer them promptly. 6, MacOS Sierra, Trilinos-12. *MiniAMR: 3D stencil calculation with Adaptive Mesh Refinement (AMR). play 2. Russo, Eric L. 67 GHz processor and 36 GB of memory. 3 . Xyce: an open source SPICE engine Eric Keiter, Jason Verley, Tom Russo, Heidi Thornquist, Sivasankaran Rajamanickam, Ting Mei, Rich Schiek, Pete Sholander, Dave Baur Sandia National Laboratories Jaijeet Roychowdhury, Tianshi Wang UC-Berkeley MOS-AK Workshop Berkeley, CA Dec. Xyce uses a message-passing implementation (MPI),  Xyce (zīs, rhymes with “spice”) is an open source, SPICE-compatible, Xyce is open source software, and is released under the GNU General Public License. 12 in Xubuntu 14. using xyce

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