Robert Sugar

PAID-Improved LQCD App IO Performance

(gkr)
Sep 2015 - Jul 2017

Lattice QCD on Blue Waters

(jnf)
Dec 2014 - Dec 2016

2020

Z. Gelzer, C. DeTar, A. X. El-Khadra, E. Gámiz, S. Gottlieb, A. Kronfeld, Y. Liu, Y. Meurice, J.N. Simone, D. Toussaint, R. S. Van de Water (2020): B-meson semileptonic form factors on (2+1+1)-flavor HISQ ensembles, Sissa Medialab srl, Proceedings of 37th International Symposium on Lattice Field Theory - Proceedings of Science (Lattice 2019), Vol 363, pp236, Wuhan, China
C. Davies, C. DeTar, E. Gamiz, S. Gottlieb, D. Hatton, J. Laiho, G. P. Lepage, Y. Liu, C. McNeile, T. Primer, D. Toussaint, R. S. Van de Water, A. Vaquero, S. Yamamoto, A. X. El-Khadra, A. Kronfeld, P. B. Mackenzie, E. T. Neil, and J. Simone (2020): The hadronic vacuum polarization of the muon from four-flavor lattice QCD, Sissa Medialab srl, Proceedings of 37th International Symposium on Lattice Field Theory - Proceedings of Science (Lattice 2019), Vol 363, pp70, Wuhan, China

2019

A. Bazavov, C. Bernard, C. DeTar, Daping Du, A.  X. El-Khadra, E.  D. Freeland, E. Gámiz, Steven Gottlieb, U.  M. Heller, J. Komijani, A.  S. Kronfeld, J. Laiho, P.  B. Mackenzie, E. T. Neil, T. Primer, J.  N. Simone, R. Sugar, D. Toussaint, and R. S. Van de Water (2019): vertical bar V-us vertical bar from K-l3 decay and four-flavor lattice QCD, Physical Review D, American Physical Society, Vol 99, Num 11, pp114509
A. Bazavov, C. Bernard, C. DeTar, Daping Du, A. X. El-Khadra, E. D. Freeland, E. Gámiz, Z. Gelzer, Steven Gottlieb, U. M. Heller, A. S. Kronfeld, J. Laiho, Yuzhi Liu, P. B. Mackenzie, Y. Meurice, E. T. Neil, J. N. Simone, R. Sugar, D. Toussaint, R. S. Van de Water, and Ran Zhou (2019): B-s -> Kl nu decay from lattice QCD, Physical Review D, American Physical Society, Vol 100, Num 3, pp034501
Carleton DeTar, Andreas S. Kronfeld, Song-haeng Lee, Daniel Mohler, and James N. Simone (Fermilab Lattice and MILC Collaborations) (2019): Splittings of low-lying charmonium masses at the physical point, Physical Review D, American Physical Society, Vol 99, Num 3, pp034509

2018

Yuzhi Liu, Jon A. Bailey, A. Bazavov, C. Bernard, C. M. Bouchard, C. DeTar, Daping Du, A. X. El-Khadra, E. D. Freeland, E. Gámiz, Z. Gelzer, Steven Gottlieb, U. M. Heller, A. S. Kronfeld, J. Laiho, P. B. Mackenzie, Y. Meurice, E. T. Neil, J. N. Simone, R. Sugar, D. Toussaint, R. S. Van de Water, and Ran Zhou (2018): Bs. Klv. Form Factors with 2+1 Flavors, EDP Sciences, EPJ Web of Conferences (35th International Symposium on Lattice Field Theory, Lattice 2017), Vol 175, pp13008, Granada, Spain
A. Bazavov, C. Bernard, N. Brambilla, N. Brown, C. DeTar, A.X. El-Khadra, E. Gámiz, Steven Gottlieb, U.M. Heller, J. Komijani, A.S. Kronfeld, J. Laiho, P.B. Mackenzie, E.T. Neil, J.N. Simone, R.L. Sugar, D. Toussaint, A. Vairo, and R.S. Van de Water (2018): Up-, Down-, Strange-, Charm-, and Bottom-Quark Masses from Four-Flavor Lattice QCD, Physical Review D, American Physical Society, Vol 98, Num 5, pp054517
A. Bazavov, C. Bernard, N. Brown, C. DeTar, A.X. El-Khadra, E. Gámiz, Steven Gottlieb, U. M. Heller, J. Komijani, A. S. Kronfeld, J. Laiho, P. B. Mackenzie, E. T. Neil, J. N. Simone, R. L. Sugar, D. Toussaint, and R. S. Van de Water (2018): B- and D-meson leptonic decay constants from four-flavor lattice QCD, Physical Review D, American Physical Society, Vol 98, Num 7, pp074512
Chakraborty, B., Davies, C. T. H., DeTar, C., El-Khadra, A. X., Gámiz, E., Gottlieb, Steven, Hatton, D., Koponen, J., Kronfeld, A. S., Laiho, J., Lepage, G. P., Liu, Yuzhi, Mackenzie, P. B., McNeile, C., Neil, E. T., Simone, J. N., Sugar, R., Toussaint, D., Van de Water, R. S., and Vaquero, A. (2018): Strong-Isospin-Breaking Correction to the Muon Anomalous Magnetic Moment from Lattice QCD at the Physical Point, Physical Review Letters, American Physical Society, Vol 120, Num 15, pp152001

2017

Raul A. Briceño, Jozef J. Dudek, Robert G. Edwards, and David J. Wilson (for the Hadron Spectrum Collaboration) (2017): Isoscalar pi pi Scattering and the sigma Meson Resonance from QCD, Physical Review Letters, American Physical Society, Vol 118, Num 2, pp022002
J. Komijani, A. Bazavov, C. Bernard, N. Brambilla, N. Brown, C. DeTar, D. Du, A.X. El-Khadra, E.D. Freeland, E. Gámiz, Steven Gottlieb, U.M. Heller, A.S. Kronfeld, J. Laiho, P.B. Mackenzie, C. Monahan, Heechang Na, E.T. Neil, J.N. Simone, R.L. Sugar, D. Toussaint, A. Vairo, R.S. Van de Water (2017): Decay constants fB and fBs and quark masses mb and mc from HISQ simulations, Proceedings of Science, Proceedings, 34th International Symposium on Lattice Field Theory (Lattice 2016), Vol 256, pp294, Southampton, England, U.K.
T. Primer, A. Bazavov, C. Bernard, C. DeTar, D. Du, A.X. El-Khadra, E.D. Freeland, E. Gamiz, S. Gottlieb, U.M. Heller, J. Komijani, A.S. Kronfeld, J. Laiho, P.B. Mackenzie, E.T. Neil, J.N. Simone, R.L. Sugar, D. Toussaint, R.S. Van de Water, R. Zhou and Fermilab Lattice and MILC Collaborations (2017): D meson semileptonic form factors with HISQ valence and sea quarks, Proceedings of Science, Proceedings, 34th International Symposium on Lattice Field Theory (Lattice 2016), Vol 256, pp305, Southhampton, England, U.K.
E. Gámiz, A. Bazavov, C. Bernard, C. DeTar, D. Du, A.X. El-Khadra, E.D. Freeland, Steven Gottlieb, U.M. Heller, J. Komijani, A.S. Kronfeld, J. Laiho, P.B. Mackenzie, E.T. Neil, T. Primer, J.N. Simone, R. Sugar, D. Toussaint, R.S. Van de Water, Ran Zhou (2017): Kaon semileptonic decays with Nf=2+1+1 HISQ fermions and physical light-quark masses, Proceedings of Science, Proceedings, 34th International Symposium on Lattice Field Theory (Lattice 2016), Vol 256, pp286, Southampton, England, U.K.

2016

A. Bazavov, C. Bernard, C. Bouchard, N. Brown, C. DeTar, D. Du, A.X. El-Khadra, E.D. Freeland, E. Gámiz, Steven Gottlieb, U.M. Heller, J. Komijani, A.S. Kronfeld, J. Laiho, L. Levkova, P.B. Mackenzie, C. Monahan, T. Primer, Heechang Na, E.T. Neil, J.N. Simone, R.L. Sugar, D. Toussaint, R.S. Van de Water, and R. Zhou (2016): Decay Constants fB and fBs from HISQ Simulations, Proceedings of Science, Proceedings, 33rd International Symposium on Lattice Field Theory (Lattice 2015), Vol 251, pp331, Kobe, Japan
A. Bazavov, C. Bernard, N. Brown, J. Komijani, C. DeTar, J. Foley, L. Levkova, Steven Gottlieb, U.M. Heller, J. Laiho, R.L. Sugar, D. Toussaint, and R.S. Van de Water (2016): Gradient Flow and Scale Setting on MILC HISQ Ensembles, Physical Review D, American Physical Society, Vol 93, Num 9, pp094510
Thomas Primer, Claude Bernard, Carleton DeTar, Aida El-Khadra, Elvira Gamiz, Javad Komijani, Andreas Kronfeld, James Simone, Doug Toussaint, and Ruth S. Van de Water (Fermilab Lattice and MILC Collaborations) (2016): D-meson Semileptonic Form Factors at Zero Momentum Transfer in (2+1+1)-Flavor Lattice QCD, Proceedings of Science, Proceedings, 33rd International Symposium on Lattice Field Theory (Lattice 2015), Vol 251, pp338, Kobe, Japan
Daniel R. Bolton, Raúl A. Briceño, and David J. Wilson (2016): Connecting Physical Resonant Amplitudes and Lattice QCD, Physics Letters B, Elsevier BV, Vol 757, pp50-56

2015

A. Bazavov, C. Bernard, N. Brown, C. DeTar, J. Foley, S. Gottlieb, U.M. Heller, J.E. Hetrick, J. Komijani, J. Laiho, L. Levkova, M. Oktay, R.L. Sugar, D. Toussaint, R.S. Van de Water, R. Zhou (2015): Gradient Flow Analysis on MILC HISQ Ensembles, Proceedings of Science, Proceedings, 32nd International Symposium on Lattice Field Theory (Lattice 2014), Vol 214, pp090, Brookhaven, New York, U.S.A.
A. Bazavov, C. Bernard, C. Bouchard, C. DeTar, D. Du, A.X. El-Khadra, J. Foley, E.D. Freeland, E. Gámiz, Steven Gottlieb, U.M. Heller, J. Kim, J. Komijani, A.S. Kronfeld, J. Laiho, L. Levkova, P.B. Mackenzie, E.T. Neil, J.N. Simone, R.L. Sugar, D. Toussaint, R.S. Van de Water, R. Zhou (2015): Charmed and Light Pseudoscalar Meson Decay Constants from HISQ Simulations, Proceedings of Science, Proceedings, 32nd International Symposium on Lattice Field Theory (Lattice 2014), Vol 214, pp382, Brookhaven, New York, U.S.A.
Daniel Mohler, Carleton DeTar, Andreas S. Kronfeld, Song-haeng Lee, Ludmila Levkova, J. N. Simone (2015): Low Lying Charmonium States at the Physical Point, Proceedings of Science, Proceedings, 32nd International Symposium on Lattice Field Theory (Lattice 2014), Vol 214, pp085, Brookhaven, New York, U.S.A.
David J. Wilson, Jozef J. Dudek, Robert G. Edwards, and Christopher E. Thomas (2015): Resonances in coupled pi K,eta K scattering from lattice QCD, Physical Review D, American Physical Society, Vol 91, Num 5, pp054008
David J. Wilson, Raúl A. Briceño, Jozef J. Dudek, Robert G. Edwards, and Christopher E. Thomas (2015): Coupled pi pi, K(K)over-bar scattering in P-wave and the rho resonance from lattice QCD, Physical Review D, American Physical Society, Vol 92, Num 9, pp094502
Thomas Primer, Doug Toussaint, Aida El-Khadra, Elvira Gámiz, and James Simone (2015): Kaon and D Meson Semileptonic Form Factors from Lattice QCD, Proceedings of Science, Proceedings, 32nd International Symposium on Lattice Field Theory (Lattice 2014), Vol 214, pp374, Brookhaven, New York, U.S.A.
Raúl A. Briceño, Jozef J. Dudek, Robert G. Edwards, Christian J. Shultz, Christopher E. Thomas, and David J. Wilson (2015): The resonant π+γ → π+π⁰ amplitude from Quantum Chromodynamics, Physical Review Letters, American Physical Society, Vol 115, Num 24, pp242001

2014

A. Bazavov, C. Bernard, C. Bouchard, C. DeTar, D. Du, A.X. El-Khadra, J. Foley, E.D. Freeland, E. Gamiz, Steven Gottlieb, U.M. Heller, J. Kim, J. Komijani, A.S. Kronfeld, J. Laiho, L. Levkova, P.B. Mackenzie, E.T. Neil, J.N. Simone, R.L. Sugar, D. Toussaint, R.S. Van de Water, R. Zhou (2014): Charmed and Strange Pseudoscalar Meson Decay Constants from HISQ Simulations, Proceedings of Science, Proceedings, 31st International Symposium on Lattice Field Theory (Lattice 2013), Vol 187, pp405, Mainz, Germany
A. Bazavov, C. Bernard, C. Bouchard, C. DeTar, D. Du, A.X. El-Khadra, J. Foley, E.D. Freeland, E. Gámiz, Steven Gottlieb, U.M. Heller, J. Kim, J. Komijani, A.S. Kronfeld, J. Laiho, L. Levkova, P.B. Mackenzie, D. Mohler, E.T. Neil, M.B. Oktay, S. Qiu, J.N. Simone, R.L. Sugar, D. Toussaint, R.S. Van de Water, R. Zhou (2014): The Ds, D+, Bs and B decay constants from 2+1 flavor lattice QCD, Proceedings of Science, Proceedings, 31st International Symposium on Lattice Field Theory (Lattice 2013), Vol 187, pp394, Mainz, Germany
A. Bazavov, C. Bernard, C. DeTar, J. Foley, S. Gottlieb, U. M. Heller, J. E. Hetrick, J. Laiho, L. Levkova, J. Osborn, R. Sugar, D. Toussaint, R. S. Van de Water, and R. Zhou (2014): Update on the 2+1+1 Flavor QCD Equation of State with HISQ, Proceedings of Science, Proceedings, 31st International Symposium on Lattice Field Theory (Lattice 2013), Vol 187, pp154, Mainz, Germany
Bazavov, A. and Bernard, C. and Bouchard, C. M. and DeTar, C. and Du, Daping and El-Khadra, A. X. and Foley, J. and Freeland, E. D. and Gámiz, E. and Gottlieb, Steven and Heller, U. M. and Kim, Jongjeong and Kronfeld, A. S. and Laiho, J. and Levkova, L. and Mackenzie, P. B. and Neil, E. T. and Oktay, M. B. and Qiu, Si-Wei and Simone, J. N. and Sugar, R. and Toussaint, D. and Van de Water, R. S. and Zhou, Ran (Fermilab Lattice and MILC Collaborations) (2014): Determination of |Vus| from a Lattice QCD Calculation of the K→πℓν Semileptonic Form Factor with Physical Quark Masses, Physical Review Letters, American Physical Society, Vol 112, Num 11, pp112001
Bazavov, A. and Bernard, C. and Komijani, J. and Bouchard, C. M. and DeTar, C. and Foley, J. and Levkova, L. and Du, D. and Laiho, J. and El-Khadra, A. X. and Freeland, E. D. and Gámiz, E. and Gottlieb, Steven and Heller, U. M. and Kim, J. and Toussaint, D. and Kronfeld, A. S. and Mackenzie, P. B. and Simone, J. N. and Van de Water, R. S. and Zhou, R. and Neil, E. T. and Sugar, R. (Fermilab Lattice and MILC Collaborations) (2014): Charmed and Light Pseudoscalar Meson Decay Constants from Four-Flavor Lattice QCD with Physical Light Quarks, Physical Review D, American Physical Society, Vol 90, Num 7, pp074509
A. Bazavov, C. Bernard, N. Brown, C. DeTar, J. Foley, Steven Gottlieb, U. M. Heller, J. E. Hetrick, J. Laiho, L. Levkova, M. Oktay, R. L. Sugar, D. Toussaint, R. S. Van de Water, R. Zhou (2014): Symanzik Flow on HISQ Ensembles, Proceedings of Science, Proceedings, 31st International Symposium on Lattice Field Theory (Lattice 2013), Vol 187, pp269, Mainz, Germany
F.T. Winter, M.A. Clark, R.G. Edwards, and B. Joo (2014): A Framework for Lattice QCD Calculations on GPUs, Institute of Electrical & Electronics Engineers, 2014 IEEE 28th International Parallel and Distributed Processing Symposium, pp1073-1082, Phoenix, Arizona, U.S.A.
E. Gámiz, A. Bazavov, C. Bernard, C. DeTar, D. Du, A.X. El-Khadra, E.D. Freeland, Steven Gottlieb, U.M. Heller, J. Komijani, A.S. Kronfeld, J. Laiho, P.B. Mackenzie, E.T. Neil, T. Primer, J.N. Simone, R. Sugar, D. Toussaint, R.S. Van de Water, and Ran Zhou (2014): Kaon semileptonic form factors with Nf = 2+1+1 HISQ fermions and physical light quark masses, Proceedings of Science, Proceedings, 31st International Symposium on Lattice Field Theory (Lattice 2013), Vol 187, pp395, Mainz, Germany
Jozef J. Dudek, Robert G. Edwards, Christopher E. Thomas, and David J. Wilson (2014): Resonances in Coupled πK-ηK Scattering From Quantum Chromodynamics, Physical Review Letters, American Physical Society, Vol 113, Num 18, pp182001

2013

A. Bazavov, C. Bernard, C. DeTar, J. Foley, W. Freeman, Steven Gottlieb, U. M. Heller, J. E. Hetrick, J. Kim, J. Laiho, L. Levkova, M. Lightman, J. Osborn, S. Qiu, R. L. Sugar, D. Toussaint, R. S. Van de Water, and R. Zhou (2013): Leptonic-Decay-Constant Ratio fK+/fπ+ from Lattice QCD with Physical Light Quarks, Physical Review Letters, American Physical Society, Vol 110, Num 17, pp172003
A. Bazavov, C. Bernard, J. Komijani, C. DeTar, L. Levkova, W. Freeman, Steven Gottlieb, Ran Zhou, U. M. Heller, J. E. Hetrick, J. Laiho, J. Osborn, R. L. Sugar, D. Toussaint, and R. S. Van de Water (2013): Lattice QCD Ensembles with Four Flavors of Highly Improved Staggered Quarks, Physical Review D, American Physical Society, Vol 87, Num 5, pp054505

2012

Carleton DeTar, A.S. Kronfeld, Song-Haeng Lee, L. Levkova, D. Mohler, J.N. Simone (2012): Charmonium Mass Splittings at the Physical Point, Proceedings of Science, Proceedings, 30th International Symposium on Lattice Field Theory (Lattice 2012), Vol 164, pp257, Cairns, Australia
Ron Babich, Richard Brower, Mike Clark, Steven Gottlieb, Balint Joo, and Guochun Shi (2012): Progress on the QUDA Code Suite, Proceedings of Science, 29th International Symposium on Lattice Field Theory (Lattice 2011), Vol 139, pp033, Lake Tahoe, California, U.S.A.

2011

Jack Dongarra, Pete Beckman, Terry Moore, Patrick Aerts, Giovanni Aloisio, Jean-Claude Andre, David Barkai, Jean-Yves Berthou, Taisuke Boku, Bertrand Braunschweig, Franck Cappello, Barbara Chapman, Xuebin Chi, Alok Choudhary, Sudip Dosanjh, Thom Dunning, Sandro Fiore, Al Geist, Bill Gropp, Robert Harrison, Mark Hereld, Michael Heroux, Adolfy Hoisie, Koh Hotta, Zhong Jin, Yutaka Ishikawa, Fred Johnson, Sanjay Kale, Richard Kenway, David Keyes, Bill Kramer, Jesus Labarta, Alain Lichnewsky, Thomas Lippert, Bob Lucas, Barney Maccabe, Satoshi Matsuoka, Paul Messina, Peter Michielse, Bernd Mohr, Matthias S. Mueller, Wolfgang E. Nagel, Hiroshi Nakashima, Michael E Papka, Dan Reed, Mitsuhisa Sato, Ed Seidel, John Shalf, David Skinner, Marc Snir, Thomas Sterling, Rick Stevens, Fred Streitz, Bob Sugar, Shinji Sumimoto, William Tang, John Taylor, Rajeev Thakur, Anne Trefethen, Mateo Valero, Aad van der Steen, Jeffrey Vetter, Peg Williams, Robert Wisniewski, and Kathy Yelick (2011): The International Exascale Software Project Roadmap, International Journal of High Performance Computing Applications, SAGE Publications, Vol 25, Num 1, pp3-60
Mikhail Smelyanskiy, Karthikeyan Vaidyanathan, Jee Choi, Bálint Joó, Jatin Chhugani, Michael A. Clark, and Pradeep Dubey (2011): High-Performance Lattice QCD for Multi-Core Based Parallel Systems Using a Cache-Friendly Hybrid Threaded-MPI Approach, Association for Computing Machinery, SC '11: Proceedings of 2011 International Conference for High Performance Computing, Networking, Storage and Analysis, pp69:1-69:11, Seattle, Washington, U.S.A.
R. Babich, M. A. Clark, B. Joó, G. Shi, R. C. Brower, and S. Gottlieb (2011): Scaling Lattice QCD Beyond 100 GPUs, Association for Computing Machinery, SC '11: Proceedings of 2011 International Conference for High Performance Computing, Networking, Storage and Analysis, pp70:1-170:11, Seattle, Washington, U.S.A.
Steven Gottlieb, Guochun Shi, Aaron Torok, and Volodymyr Kindratenko (2011): QUDA Programming for Staggered Quarks, Proceedings of Science, Proceedings, 28th International Symposium on Lattice Field Theory (Lattice 2010), Vol 105, pp026, Villasimius, Italy

2018

Paul Mackenzie, Norman Christ, Robert Sugar, Alexei Bazavov, Peter Boyle, Carleton DeTar, Steven Gottlieb, Doug Toussaint, Chulwoo Jung, Yuzhi Liu (2018): High-Energy Physics on Blue Waters, 2018 Blue Waters Annual Report, pp130-131

2016

Robert Sugar (2016): Lattice QCD on Blue Waters, 2016 Blue Waters Annual Report, pp117-119

2015

Robert Sugar (2015): Lattice QCD on Blue Waters, 2015 Blue Waters Annual Report, pp115-117

Steve Gottlieb: Lattice QCD on Blue Waters


Blue Waters Symposium 2016, Jun 14, 2016

Steven Gottlieb: Lattice QCD on Blue Waters


Blue Waters Symposium 2015, May 11, 2015

Steve Gottlieb, Balint Joo: Lattice QCD on Blue Waters


Blue Waters Symposium 2014, May 14, 2014

Jefferson Lab scientists eavesdrop on chatter of sub-atomic world


Apr 10, 2017

Much like two friendly neighbors getting together to chat over a cup of coffee, the minuscule particles in our sub-atomic world also come together to engage in a kind of conversation. Now, nuclear scientists are developing tools to allow them to listen in on the particles’ gab fests and learn more about how they stick together to build our visible universe. Jozef Dudek is a staff scientist at the U.S. Department of Energy’s (DOE) Jefferson Lab and an assistant professor of physics at William & Mary. He and his colleagues recently carried out the first complex calculations of a particle called the sigma. They published the result in Physical Review Letters in January.


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Medley of Monte Carlo


May 28, 2015

What do superconductors and the intergalactic medium have in common? Scientists study both on Blue Waters using something called Monte Carlo methods. Monte Carlo methods are widely used in computational sciences because they allow researchers to find a solution to a problem that is intractable to answer directly. ... Robert Sugar, a professor emeritus at the University of California in Santa Barbara, and the MILC collaboration use Blue Waters to study quarks, the subatomic particles that make up the better-known protons and neutrons in the atomic nucleus. Lucas Wagner, professor of physics at the University of Illinois at Urbana-Champaign, experiments with the interactions between electrons in strongly correlated materials that change properties depending on temperature and pressure and under certain conditions become superconductors.


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Meson mission


May 29, 2013

Using supercomputing resources provided by the National Science Foundation’s Blue Waters and XSEDE projects and the Department of Energy’s INCITE program, a team of researchers has performed the most precise calculation to date of a key quantity in high-energy physics, a field that asks fundamental questions about the nature of matter and our universe. This work on the ratio of the leptonic decay constants of the K and pi mesons was recently published in Physical Review Letters. The USQCD Collaboration brings together many U.S. scientists who use large-scale computers for calculations in lattice quantum chromodynamics, a theory of the strong interaction between elementary particles (quarks and gluons). Robert Sugar of the University of California-Santa Barbara, the principal investigator for the team’s Petascale Computing Resource Allocation (PRAC) on the Blue Waters supercomputer, explains that much of their work is aimed at looking for gaps in the Standard Model of high-energy physics that has been around since the 1970s.


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Blue Waters petascale supercomputer now in friendly user phase


Nov 6, 2012

The full Blue Waters petascale computing system is now available in "friendly-user" mode to the National Science Foundation-approved science and engineering teams. These groups from across the country will use Blue Waters for challenging research in weather and climate, astrophysics, biomolecular systems, and other fields. ... Selected "friendly users" will have access to the entire system during this window in order to help the Blue Waters team test and evaluate the full system and to expedite the Petascale Computing Resource Allocation (PRAC) teams' ability to use the full Blue Waters system productively as soon as it is in full production status.


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Making history


Sep 24, 2012

A brief but tantalizing test run of the Blue Waters sustained petascale supercomputer earlier this year has left researchers eagerly awaiting full deployment. The Blue Waters Early Science System (BW-ESS) was only about 15 percent of the full machine as it consisted of 48 cabinets with 4,512 XE6 compute nodes and 96 service nodes and a Sonexion Lustre Storage Appliance provided two petabytes of disk storage. But that was enough to allow researchers to test the technology used in Blue Waters and identify and fix software bugs and other issues that prevented some codes from successfully scaling.


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6 science teams begin using Blue Waters Early Science System


Mar 20, 2012

Six research teams have begun using the first phase of the Blue Waters sustained-petascale supercomputer to study some of the most challenging problems in science and engineering, from supernovae to climate change to the molecular mechanism of HIV infection. The Blue Waters Early Science System, which is made up of 48 Cray XE6 cabinets, represents about 15 percent of the total Blue Waters computational system and is currently the most powerful computing resource available through the National Science Foundation.


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PRAC winners represent a range of disciplines


Apr 21, 2010

Petascale Computing Resource Allocations (PRAC awards) from the National Science Foundation allow research teams to work closely with the Blue Waters project team in preparing their codes. The codes and projects address key challenges faced by our society and explore fundamental scientific and engineering problems. These multiyear collaborations include help porting and re-engineering existing applications. In some cases, the teams will build entirely new applications based on new programming models. Current projects—18 representing about 30 institutions—represent a wide range of scientific disciplines. They will drive scientific discovery for years to come.


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Getting viral


Sep 1, 2009

"In the planning world, we work with policymakers to design studies of particular outcomes," says Virginia Tech's Keith Bisset. Months of planning, collaboration, and modeling might go into strategies for what a city, county, or entire country might do when facing a disease outbreak. "But now we also have tools that allow for a quick turnaround. We can do a situational assessment that shows them what a particular [outbreak] might look like tomorrow or next week as it unfolds. They describe the situation, and we can tell them the outcomes of various interventions," he says. This spring Bisset and a group from Virginia Tech joined forces with the Pittsburgh Supercomputing Center's Shawn Brown and Douglas Roberts and Diglio Simoni of North Carolina's Research Triangle Institute to win one of the first Petascale Computing Resource Allocations awards. With that support and with computing time on Blue Waters, they expect to model global epidemics, as well as smaller-scale outbreaks. Instead of looking at a few hundred million people, as the team members do with their current codes, they'll look at more than 6 billion people.


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