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Matthew Turk
Works at National Center for Supercomputing Applications
Lives in Champaign, IL
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Matthew Turk

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yt 3.2 has been released!
[yt-users] ANN: yt-3.2 released. Britton Smith brittonsmith at gmail.com. Fri Jul 24 10:05:16 PDT 2015. Previous message: [yt-users] Mapping of particle field to the grid; Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] ...
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With some of the new capabilities in +yt Project's volume rendering, thanks to +Sam Skillman and +Suoqing Ji, I made this movie.  It's a 360 view, which means on mobile devices you can look around like you're viewing a viewport into the world it shows.  On the web it's a panning interface.
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Nice!  This is awesome.
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We invite you to participate in the 2015 IEEE Scientific Visualization Contest. This year's contest targets data from cosmology research that studies the formation of structure in the Universe. Participants are challenged to create a comprehensive set of analysis and visualization capabilities that enable domain experts to gain deeper insight into the formation of various structures in the Universe and better understanding of observations from next generation telescopes. Besides a number of interesting incentives, the contest winners will be presenting their work at IEEE VIS 2015 and they will get a chance to publish their results as a full, peer-reviewed IEEE CG&A article. Find out more at http://sciviscontest.ieeevis.org/2015/
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The Facts of Death
It is not a wise or a sensible thing to do, to fly from the US to the UK, getting in late on the Tuesday night, and flying back early on the Thursday morning, in order to go to a funeral on the Wednesday, but sometimes you do the wrong thing because it's th...
It is not a wise or a sensible thing to do, to fly from the US to the UK, getting in late on the Tuesday night, and flying back early on the Thursday morning, in order to go to a funeral on the Wednesday, but sometimes you do the wrong thing because it's the only right thing you can do, ...
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Jason also pointed to this HN discussion, featuring a very interesting comment by +William Stein : https://news.ycombinator.com/item?id=9108357
 
Wow, all of the publicly funded universities shouldn't be hoarding knowledge and technological advances. Carl Boettiger once told me that most university tech transfer offices do not make any money and that only a small set of Universities have lucrative patents that do keep the office in the black. I'd love to see some real data on that. Glad to see that the University of California is not on this list.
145 Universities Warn Congress Pending Patent Legislation Would Harm U.S. Innovation System. The Honorable Chuck Grassley The Honorable Bob Goodlatte Chairman Chairman Committee on the Judiciary Committee on the Judiciary United States Senate U.S. House of Representatives ...
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We are excited to finally be releasing "Effective Computation in Physics - Field Guide to Research with Python" published by O'Reilly Media. This has been a labor of us over the past year. You can purchase the book here (http://shop.oreilly.com/product/0636920033424.do) or check out our website (http://physics.codes/) for more information.

We are hoping for friendly technical review comments from readers. We will be incorporating these as we go.  Please understand that as an early release, parts of this book remain "raw and unedited." Many updates have already been made which may not be yet pushed up to the early release version.

We would love to see this be a supplemental course textbook, used as an introduction for new graduate or undergraduate students in research, and so on. if you are an educator and want to use this book in such a capacity, we'd love to hear from you. Now is your opportunity to influence the final product to best fit your needs!
Effective Computation in Physics. Now available from O'Reilly Media in an early release ebook format! Finally! Effective Computation in Physics is a manual for starting up or honing your programming and software skills even though your background is in the physical sciences or engineering.
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What are Microaggressions?

Microaggressions are the everyday verbal, nonverbal, and environmental slights, snubs, or insults, whether intentional or unintentional, which communicate hostile, derogatory, or negative messages to target persons based solely upon their marginalized group membership. In many cases, these hidden messages may invalidate the group identity or experiential reality of target persons, demean them on a personal or group level, communicate they are lesser human beings, suggest they do not belong with the majority group, threaten and intimidate, or relegate them to inferior status and treatment.

Read more at Women in Astronomy:
This past week I attended the Inclusive Astronomy conference in Nashville and there was an incredible talk by Kenjus Watson about microaggressions.  This term gets brought up frequently in feminist and equity conversations, b...
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An illustrated guide to limiters
Or: how to interpolate non-smooth data without creating wiggles

This is a Jupyter Notebook that explains slope limiters, including TVD limiters and WENO, with code and interactive examples.  At the very bottom is an animation showing how several different methods behave for advection of a Gaussian and a square wave.
Many interesting wave phenomena -- like fluid dynamics, lasers, and water waves -- are described by nonlinear hyperbolic partial differential equations. The solutions of these problems are discontinuous. So-called limiters (sometimes referred to as slope limiters or flux limiters are one of the ...
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+Jill Naiman just sent me this slice of awesomeness of science visualization.
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Loo.py: From Fortran to performance via transformation and substitution rules

(Andreas Klockner)

#GPU   #OpenCL   #Python   #Fortran   #OpenSource   #SourceCode  

A large amount of numerically-oriented code is written and is being written in legacy languages. Much of this code could, in principle, make good use of data-parallel throughput-oriented computer architectures. Loo.py, a transformation-based programming system targeted at GPUs and general data-parallel architectures, provides a mechanism for user-controlled transformation of array programs. This transformation capability is designed to not just apply to programs written specifically for Loo.py, but also those imported from other languages such as Fortran. It eases the trade-off between achieving high performance, portability, and programmability by allowing the user to apply a large and growing family of transformations to an input program. These transformations are expressed in and used from Python and may be applied from a variety of settings, including a pragma-like manner from other languages.

http://hgpu.org/?p=13791
A large amount of numerically-oriented code is written and is being written in legacy languages. Much of this code could, in principle, make good use of data-parallel throughput-oriented computer a...
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I’d like to introduce the remotenames extension I’ve been working on. It is derived from Augie Fackler’s remotebranches extension. This extension keeps track of remote branches and remote bookmarks. Built on top of the namespaces API in Mercurial, it requires version 3.3 or above.
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"Computing does not end with computers! So this year we have an activity that shows how astronomers use computers to create images and understand their data. This activity is appropriate for 4th through 12th grade students, with no prior coding experience necessary."

A lovely fast past experience in creating a CS/STEM activity with +David Bau +Kimberly Arcand +Joseph DePasquale and Google's CS First teams. #hourofcode  
For many, it might be hard to imagine living a life without computers and technology. In fact, it's become so much a part of our society that we may not realize how dependent we are on technology. But who does the work that enables these computers to fit into our daily lives?
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Work
Occupation
Astrophysicist
Employment
  • National Center for Supercomputing Applications
    Research Scientist, present
  • University of Illinois
    Research Assistant Professor, present
  • Columbia University
    Astrophysicist
  • Penn State University
  • Northwestern University
  • Stanford University / SLAC
  • University of California, San Diego
Basic Information
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Male
Other names
Matt Turk
Story
Introduction
I'm a computational Astrophysicist, studying the formation of the first stars in the universe.  I also develop tools for running, analyzing and visualizing astrophysical simulations.
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Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Currently
Champaign, IL
Previously
New York, NY - Rockford, MI - Chicago, IL - State College, PA - Evanston, IL - Grand Rapids, MI - Palo Alto, CA - La Jolla, CA