Subject: NA Digest, V. 13, # 38 NA Digest Thursday, November 14, 2013 Volume 13 : Issue 38 Today's Editor: Daniel M. Dunlavy Sandia National Labs [log in to unmask] Today's Topics: Sharp Phase Transition in LInear Algebra/NA Three to be honored at SC13 Mathematical Competitive Game, 2013-2014 BLIS, BLAS-like Library Instantiation Software Framework Blaze 1.4 Released Call for HPC-cloud based experiments, Fortissimo EU New Book, Arithmetic of Infinity Bay Area Scientific Computing Day, USA, Dec 2013 Scientific Software Days, USA, Dec 2013 Numerical Analysis and Computational Statistics, UK, Jan 2014 CoDA 2014, USA, Mar 2014 Num Meth for Sci Comp and Adv Applications, Bulgaria, May 2014 Combinatorial Sci Comp, France, Jul 2014 Coupled Processes in Bio/Nano Systems, Spain, Jul 2014 Faculty Position, Applied Mathematics, NJIT Postdoc Position, Cardiovascular Modeling & Sim, UNC-CH Postdoc Position, Math Modelling and Scientific Comp, McMaster PhD Positions, Stanford Univ Contents, J. of Complexity, 30 (2) Subscribe, unsubscribe, change address, or for na-digest archives: http://www.netlib.org/na-digest-html/faq.html Submissions for NA Digest: http://icl.cs.utk.edu/na-digest/ ------------------------------------------------------- From: Garry J. Tee [log in to unmask] Date: November 05, 2013 Subject: Sharp Phase Transition in LInear Algebra/NA Igor Carron asked (V.13, #37) whether any sharp phase transition in the area of linear algebra or numerical analysis has appeared in the literature before 2004. In solving linear equations by stationary iterative processes the convergence depends not only on the dominant eigenvalue of the error operator, but also on its Jordan canonical form [George E. Forsythe & Wolfgang R. Wasow, "Finite-Difference Methods for Partial Differential Equations", Wiley, New York, 1960, p.260; Garry J. Tee, Eigenvectors of the successive over-relaxation process, and its combination with Chebyshev semi-iteration, The Computer Journal, Vol.6 No.3, October 1963, 250-263, with Correction in Vol.7 No.1, April 1964]. In 1962 I was puzzled by unexpectedly slow and irregular convergence in an engineering computation, and that was traced to a large Jordan box in the error operator [Geoffrey A. Miles, Karl A. Stewart & Garry J. Tee, Elementary divisors of the Liebmann process, The Computer Journal, Vol.6 No.4, January 1964,352-355; with Errata in Vo.7 No.1 April 1964; and Errata to Errata in Vol.7 No.2, July 1964]. And the Jordan canonical form of a matrix does not vary continuously with its elements. As an example, consider the square matrix A(x) of order n with complex parameter x, with diagonal elements $ a_{ii} = ix $ for i from 1 to n and $ a_{i,i+1} = 1 $ for i from 1 to n-1, and all other elements being zero. For all nonzero x the Jordan canonical form C is the diagonal matrix with each $ c_{ii} = ix $, but for x=0 C has a sharp phase transition to the strictly upper-triangular matrix A(0). ------------------------------------------------------- From: Don Fike [log in to unmask] Date: November 07, 2013 Subject: Three to be honored at SC13 Three to be honored at SC13 Jack Dongarra will receive the 2013 ACM/IEEE-CS Ken Kennedy Award in recongnition of substantial contributions to programmability and productivity in computing and substantial community service or mentoring contributions. http://www.computer.org/portal/web/pressroom/Dongarra-to-Receive-Ken-Kennedy- Award-for-Software-Technologies-That-Power-Supercomputers Marc Snir will receive the 2013 IEEE Seymour Cray Award in recognition of the innovative contributions to high-performance computing systems that best exemplify Cray's creative spirit. http://www.computer.org/portal/web/pressroom/Marc-Snir-to-Receive-IEEE-CS- Seymour-Cray-Award Chris Johnson will receive the 2013 IEEE Computer Society Fernbach Award for outstanding contributions in the application of high performance computers using innovative approaches, including creation of widely used and innovative software packages, applications and tools. http://www.computer.org/portal/web/pressroom/Christopher-Johnson-Will-Receive- IEEE-CS-Sidney-Fernbach-Award ------------------------------------------------------- From: Bernard Beauzamy [log in to unmask] Date: November 11, 2013 Subject: Mathematical Competitive Game, 2013-2014 The Mathematical Competitive Game 2013-2014, organized jointly by the French Federation of Mathematical Games and Societe de Calcul Mathematique SA, is now open. It is endowed with 2,000 Euros of prizes. The topic for this year is: Checking an Industrial Process. Please see: http://scmsa.eu/archives/SCM_FFJM_Competitive_Game_2013_2014.pdf for a complete description of the game. Answers should be sent no later than April 30th, 2014. Please inform your students and colleagues. ------------------------------------------------------- From: Field G. Van Zee [log in to unmask] Date: November 13, 2013 Subject: BLIS, BLAS-like Library Instantiation Software Framework It is my pleasure to announce the first developer's release of the BLAS-like Library Instantiation Software (BLIS) framework. BLIS helps developers and users of BLAS libraries in the following ways: - BLIS facilitates high performance by casting nearly all level-3 operations in terms of a single "micro-kernel" (per datatype), which greatly reduces the effort of porting to new hardware. - BLIS serves HPC researchers as a flexible framework for rapid prototyping and testing of new operations, implementations, and optimizations. - BLIS exports an improved (but still optional) BLAS-like API for those frustrated by certain limitations in the BLAS interface. This initial release includes a portable reference implementation, a few optimized kernels for a few select platforms, and a highly parameterized test suite which can be used to exercise and verify existing operations or gather performance data, or both. We have used BLIS to develop multithreaded implementations; however, we have not yet integrated those codes into the framework. We plan to include this work in a future release. We invite those who have previously developed highly-optimized kernels for other open source BLAS projects to contribute micro-kernels to BLIS, and/or test existing micro-kernels. For more information, including FAQ, API documentation, developer resources, and current hardware support, please visit the project website at http://code.google.com/p/blis/ . ------------------------------------------------------- From: Klaus Iglberger [log in to unmask] Date: November 12, 2013 Subject: Blaze 1.4 Released Version 1.4 of the Blaze library, one of the fastest high-performance C++ math libraries, has been released. Next to lots of small changes and improvements, the major feature of this version is the introduction of subvectors and submatrices. In combination with rows and columns they provide an amazing flexibility to access vector and matrix data. The second major change involves the licensing. With version 1.4 the license of Blaze has been switched from the GPLv3 license to the new BSD license. Therefore, from now on, Blaze can be freely used in any project and merely requires a copyright notice. Blaze 1.4 is now available for download at http://code.google.com/p/blaze-lib. ------------------------------------------------------- From: Guntram Berti [log in to unmask] Date: November 12, 2013 Subject: Call for HPC-cloud based experiments, Fortissimo EU The Fortissimo project (EU FP7 contract 609029) is funding a set of experiments (sub-projects) to drive the creation and demonstrate the business potential of an HPC-Cloud service ecosystem. Additional application experiments are sought to investigate and demonstrate engineering and manufacturing simulation services in the Fortissimo HPC-Cloud. The principal objective of Fortissimo is to enable European manufacturing, particularly SMEs, to benefit from the efficiency and competitive advantage inherent in the use of simulation. This will be achieved through the provision of simulation services running on an HPC-based cloud infrastructure. Fortissimo will make advanced simulation accessible to industrial users, particularly SMEs, through the realisation of a "one-stop shop" where hardware, expertise, applications, visualisation and tools will be easily available and affordable on a pay-per-use basis. Fortissimo seeks new application experiments providing business relevant investigations and demonstrations of engineering and manufacturing simulation services in the Fortissimo HPC Cloud. Priority will be given to proposals for experiments which complement the activities already included within Fortissimo and which address the needs of engineering and manufacturing SMEs. Proposed experiments should include all participants necessary for the experiment, which may include HPC experts, HPC Centres or ISVs already included within the Fortissimo consortium. Experiments will employ the Fortissimo HPC infrastructure using the HPC Centres already involved in the project. Call closure: January 2nd 2014 at 17h00, Brussels local time. Foreseen budget: Total of 5M Euro funding; the funding for individual experiments is not expected to exceed 250K Euro. Further information: www.fortissimo-project.eu/ ------------------------------------------------------- From: Dmitri E. Kvasov [log in to unmask] Date: November 13, 2013 Subject: New Book, Arithmetic of Infinity Yaroslav D. Sergeyev, Arithmetic of Infinity, 2013. http://www.amazon.co.uk/Arithmetic-Infinity-Yaroslav-D-Sergeyev- ebook/dp/B00G7RB1FS/ref=sr_1_2?s=books&ie=UTF8&qid=1384278559&sr=1-2 The book presents a new type of arithmetic that allows one to execute arithmetical operations with infinities and infinitesimals numerically. The problem of infinity is considered in a coherent way different from (but not contradicting to) Cantor. In order to broaden the audience, the book was written as a popular one. This is the 2nd revised edition (the first edition has been published in 2003, available at European Amazon sites). “Mathematicians have never been comfortable handling infinities, such as those that crop up in the area of a Sierpinski carpet. But an entirely new type of mathematics looks set to by-pass the problem”, MIT Technology Review, 03.19.2012. “The expressed viewpoint on infinity gives possibilities to solve new applied problems using arithmetical operations with infinite and infinitesimal numbers that can be executed in a simple and clear way.” P.M. Pardalos, Editor-in-Chief of the Journal of Global Optimization, 2006, 34, 157–158. “I am sure that the new approach presented in this book will have a very deep impact both on Mathematics and Computer Science.” D. Trigiante, Computational Management Science, 2007, 4(1), 85-86. ------------------------------------------------------- From: Bert de Jong [log in to unmask] Date: November 12, 2013 Subject: Bay Area Scientific Computing Day, USA, Dec 2013 The registration deadline for the December 11, 2013 Bay Area Scientific Computing Day (BASCD) is November 30. Please register so we can have access and lunch (and parking if needed) set up for the attendees. BASCD is an annual one-day meeting focused on fostering interactions and collaborations between researchers in the fields of scientific computing and computational science and engineering from the San Francisco Bay Area. The event provides junior researchers a venue to present their work to the local community, and for the Bay Area scientific and computational science and engineering communities at large to interchange views on today’s multidisciplinary computational challenges and state-of-the-art developments. The speakers at this year’s meeting are Kevin Carlberg (Sandia), Erin Carson (UC Berkeley), Lixin Ge (SLAC), Jeff Irion (UC Davis), Lex Kemper (LBNL), Christian Linder (Stanford University), Ding Lu (UC Davis), Ali Mani (Stanford University), François-Henry Rouet (LBNL), Cindy Rubio-Gonzalez (UC Berkeley), Khachik Sargsyan (Sandia) and Samuel Skillman (SLAC). This year we will have a combined lunch and poster session. If you are interested in presenting a poster, please indicate this during registration.The schedule, registration, and the title and abstract of the speakers are available on the BASCD website: https://sites.google.com/a/lbl.gov/bay-area-scientific-computing-day/ ------------------------------------------------------- From: Victor Eijkhout [log in to unmask] Date: November 12, 2013 Subject: Scientific Software Days, USA, Dec 2013 Scientific Software Days 2013 Austin TX , December 16-17, 2013 http://scisoftdays.org/ Most groups that use supercomputing cope with their scientific software environment in isolation, not always relying on prepackaged 'canned' solutions. Many successful lines of research and development are achieved, but many times less than optimal paths are taken, simply because computing is done by people stretched between computational skills and skills in the relevant science and engineering specialties. Available tools and methods are not always known to the people who need them, and time pressure makes it hard to make the best use of the tools available. Support staff at supercomputing centers is stretched and is best at responding to specific issues rather than offering broad support. We seek to build a community to address these needs. The Scientific Software Days at UT Austin is intended to nucleate that community. If you are involved in any end use or development of scientific software, you can benefit from and contribute to this goal. Ideal presentations for Scientific Software Days are of two types: 1) presentations of generic tools that can be used in scientific software development and deployment 2) presentations of specific work, focusing on experience in developing scientific software, workflows, and tool chains. We are especially seeking presentations of the second type. The target audience will be a broad selection of the scientific and engineering communities with a particular interest in supercomputing. ------------------------------------------------------- From: Konstantinos Zygalakis [log in to unmask] Date: November 12, 2013 Subject: Numerical Analysis and Computational Statistics, UK, Jan 2014 A half day event, Interfaces Between Numerical Analysis and Computational Statistics, will be held at the University of Southampton. The meeting will take place in the Mathematics Building at Highfield campus on Wednesday 15 of January 2014, with the talks starting in the early afternoon and followed by a reception and dinner. Speakers will be - Mark Girolami (University College London) - Andrew Stuart (University of Warwick) - Konstantinos Zygalakis (University of Southampton) If you are interested in attending this event or would like further information, please send an email to Konstantinos Zygalakis ([log in to unmask]). There is a registration fee of £15 while a small amount of funding to support travel (by rail) for graduate students and young researchers is available. Further details can be obtained at the webpage: http://www.personal.soton.ac.uk/kz1e11/workshop.htm. The meeting is supported by an LMS conference grant to celebrate new appointments and the University of Southampton. ------------------------------------------------------- From: Paul Constantine [log in to unmask] Date: November 08, 2013 Subject: CoDA 2014, USA, Mar 2014 CoDA 2014, Conference on Data Analysis March 5-7, 2014 Santa Fe, NM http://cnls.lanl.gov/coda Exploring Data-Focused Research across the Department of Energy Join us for the second Conference on Data Analysis, bringing together statisticians and other data science researchers from the Department of Energy national laboratories and their collaborators from academia and industry. The banquet speaker will be Amanda Cox of the New York Times, winner of the ASA’s 2012 Excellence in Statistical Reporting Award. The CoDA 2014 invited program features 6 themed sessions exploring these topics: - Data-intensive applied science - National security - Energy and the environment - Uncertainty quantification - Big data and exascale computing - Signature discovery The deadline for posters is February 3. ------------------------------------------------------- From: Krassimir Georgiev [log in to unmask] Date: November 12, 2013 Subject: Num Meth for Sci Comp and Adv Applications, Bulgaria, May 2014 International Conference on "Numerical Methods for Scientific Computations and Advanced Applications" (http://parallel.bas.bg/Conferences/nmscaa/) It is devoted to the 60th anniversary of Svetozar Margenov. The conference is scheduled for May 19-22, 2014. The conference will be held in the town of Bansko. Specific topics of interest (but not limited to) are the following: Multiscale and multiphysics problems; Robust preconditioning; Monte Carlo methods; Optimization and control systems; Scalable parallel algorithms; Advanced computing for innovations. Important deadlines: Registration February 15, 2014 Submission of extended abstracts March 01, 2014 Notification of acceptance: April 01, 2014 An online registrataion will be opened soon. Plenary Invited Speakers: P. Arbenz (CH), O. Axelsson (CR), R. Blaheta (CR), O. Iliev (DE), J. Kraus (AT), R. Lazarov (USA), P. Minev (CA), M. Neytcheva (SE), P. Vassilevski (USA), V. Veliov (AT), L. Zikatanov (USA) ------------------------------------------------------- From: Bora [log in to unmask] Date: November 08, 2013 Subject: Combinatorial Sci Comp, France, Jul 2014 6th SIAM Workshop on Combinatorial Scientific Computing (CSC14) July 21-23, 2014, Lyons, France http://www.siam.org/meetings/csc14/ The 6th SIAM Workshop on Combinatorial Scientific Computing (CSC14) will provide a forum for researchers interested in the interaction of combinatorial mathematics and algorithms with scientific computing to discuss current developments in research. CSC14 follows five earlier CSC workshops held in 2004 (San Francisco, US), 2005 (Toulouse, France), 2007 (Costa Mesa, US), 2009 (Seaside, US), and 2011 (Darmstadt, Germany). As in the earlier workshops, CSC14's focus is on combinatorial mathematics and algorithms in high performance computing, broadly interpreted. Talks in this broadly defined area as well as those on traditional combinatorial scientific computing topics, including but not limited to, parallel computing, sparse matrix computations, combinatorial problems in optimization, automatic differentiation, mesh generation, computational biology, and combinatorial matrix theory are welcome. Confirmed invited speakers: Petros Drineas, Rensselaer Polytechnic Institute; Tamara G. Kolda, Sandia National Laboratories; Sivan Toledo, Tel-Aviv University. Important Dates: February 15, 2014: Deadline for abstract submission March 15, 2014: Notification of acceptance March 21, 2014: Deadline for applying for travel support July 21-23, 2014: Workshop ------------------------------------------------------- From: Roderick Melnik [log in to unmask] Date: November 14, 2013 Subject: Coupled Processes in Bio/Nano Systems, Spain, Jul 2014 The 2014 WCCM Workshop/Minisymposium on “Computational Modeling of Multiphysics/Multiscale Coupled Processes in Biological and Nanotechnological Systems” will be held in Barcelona, July 20-25, 2014. This event is part of the the 11th World Congress on Computational Mechanics (WCCM2014). Please submit your one-page abstract before November 29, 2013. Details are given at http://www.m2netlab.wlu.ca/news-events/workshop2014-WCCM.html Organizers: Giovanna Guidoboni (USA) Roderick Melnik (Canada) Riccardo Sacco (Italy) ------------------------------------------------------- From: Peter G. Petropoulos [log in to unmask] Date: November 08, 2013 Subject: Faculty Position, Applied Mathematics, NJIT The Department of Mathematical Sciences (DMS) at the New Jersey Institute of Technology seeks candidates to fill a tenure-track/tenured position at the Assistant/Associate/Full Professor level in the general area of Applied Mathematics. The Department is particularly interested in candidates whose research interests are consistent with the existing research strengths in scientific computing/numerical analysis, modeling/asymptotic analysis, PDE’s and dynamical systems, with focused research groups in the fields of fluid mechanics, mathematical biology and wave propagation. DMS has experienced tremendous growth in research over the past two decades, and is now recognized as a leading national program in applied mathematics. The department offers BS, MS & PhD degrees, with PhD program tracks in Applied Mathematics as well as in Applied Probability & Statistics. For more information about DMS faculty and programs, visit http://math.njit.edu. Candidates should have a Ph.D. in Applied Mathematics or related fields and postdoctoral experience with strong research and teaching potential for consideration at the Assistant Professor level, and an appropriate record of accomplishment in classroom teaching, mentoring doctoral students and research publication and funding, at the Associate or Full Professor level. At the university's discretion, the education and experience prerequisites may be excepted where the candidate can demonstrate to the satisfaction of the university, an equivalent combination of education and experience specifically preparing the candidate for success in the position. Please visit https://njit.jobs, posting number 0601798, to apply. Submit a cover letter, resume/CV, research and teaching statements, and a summary of teaching evaluations (particularly for positions at the Associate/Full Professor level). Review of applications will begin on November 15, 2013 and will continue until the position is filled. ------------------------------------------------------- From: Boyce Griffith [log in to unmask] Date: November 05, 2013 Subject: Postdoc Position, Cardiovascular Modeling & Sim, UNC-CH Applications are invited for up to two postdoctoral positions in cardiovascular modeling and simulation. These positions will be part of a new cardiovascular modeling research group being established in 2014 at the University of North Carolina at Chapel Hill in the Applied Mathematics Program and the McAllister Heart Institute at UNC School of Medicine. This group will also interact with the UNC/NCSU Joint Department of Biomedical Engineering, the new Department of Applied Physical Sciences at UNC, and others. One of these positions is expected to be funded by a recently awarded NIH grant to develop large-scale computational models of aneurysmal, dissecting, and dissected aortas. Consequently, applicants are sought with experience in damage and fracture mechanics, simulating tissue growth and remodeling, and/or high-performance scientific computing. Prior experience in a specific area is not required, however, and any applicant with a relevant background and interests will receive full consideration. Please provide via http://www.mathjobs.org/jobs/jobs/5398: (1) a vita; (2) a research statement; and (3) at least three letters of reference. In addition, applicants must also apply online at http://unc.peopleadmin.com/postings/34254 to be considered for this position. The University of North Carolina is an Equal Opportunity Employer. ------------------------------------------------------- From: Bartosz Protas [log in to unmask] Date: November 06, 2013 Subject: Postdoc Position, Math Modelling and Scientific Comp, McMaster Applications are invited for a postdoctoral fellowship position in the Department of Mathematics and Statistics at McMaster University. This fellowship provides an opportunity to engage in research in close collaboration with Dr. Protas and his group (more information available at http://www.math.mcmaster.ca/bprotas ). The focus of this industry-funded position will be research on mathematical and computational modelling of nonequilibrium electrochemical and thermodynamic processes occurring in Li-ion batteries. This position is intended for an applied mathematician interested in exploring a rapidly developing application area, or for a mathematically-minded chemist with a solid background in theoretical and computational chemistry. In either case, knowledge of multiscale modelling (especially homogenization), electrochemistry, PDEs and scientific computing will be an asset. This research project also involves close collaboration with chemists and material scientists as well as research scientists with our Industrial Partner. The duration of the position will be initially one year with extension for the second year contingent on satisfactory performance and availability of funding. The fellowship is open to candidates of any nationality and selection will be based on the candidate's research potential and fit with Dr. Protas' research group. The fellowship starts on May 1, 2014 or earlier, and provides an annual stipend salary of $45,000 CAD. Candidates are required to apply for this fellowship by using the MathJobs website (see our advertisement at www.mathjobs.org). We will begin reviewing applications on January 10, 2014. Applications received after this date will be accepted until the position is filled, but to ensure full consideration applicants are advised to submit all supporting materials by the above deadline. ------------------------------------------------------- From: Margot Gerritsen [log in to unmask] Date: November 05, 2013 Subject: PhD Positions, Stanford Univ ICME is now open for applications to our PhD program in computational mathematics. We are looking for excellent and excited students who like to work at the interface of computing, applied mathematics and applications. PhD students have guaranteed support. Deadline for applications is December 3, 2013, for a start in Fall of 2014-2015. Information for prospective students can be found on our website at: http://icme.stanford.edu/prospective-students/ For the last 10 years, ICME, which succeeded the SCCM program led by Gene Golub, has been the central home of computational mathematics on campus. We develop innovative computational and mathematical approaches for complex engineering and scientific problems. Our PhD students are advised in research by over 45 faculty from 20 departments, covering a wide variety of fields including statistics and data science, control, optimization, numerical analysis, applied mathematics, high- performance computing, earth sciences, flow physics, graphics, bioengineering, genomics, economics and financial mathematics, molecular dynamics, and many more. PhD graduates find outstanding positions in industry, at national laboratories, as well as in academia. We offer many courses at the MS and PhD level to our graduate students. The institute has a wide variety of high performance computers, including MPI, GPU, shared memory and map-reduce clusters. We also run a very large visualization center. ------------------------------------------------------- From: Joseph Traub [log in to unmask] Date: November 12, 2013 Subject: Contents, J. of Complexity, 30 (2) ournal of Complexity Volume 30, Issue 2, April 2014 SPECIAL ISSUE: Dagstuhl 2012 GUEST EDITORS: Aicke Hinrichs, Andreas Neuenkirch, Erich Novak CONTENTS ANNOUNCEMENTS Guest Editors’ Preface INVITED ARTICLES Approximation of analytic functions in Korobov spaces, Josef Dick, Peter Kritzer, Friedrich Pillichshammer, Henryk Woźniakowski On weighted Hilbert spaces and integration of functions of infinitely many variables, Michael Gnewuch, Sebastian Mayer, and Klaus Ritter Weak and quasi-polynomial tractability of approximation of infinitely differentiable functions, Jan Vybíral Approximation rates for the hierarchical tensor format in periodic Sobolev spaces, Reinhold Schneider, André Uschmajew Optimal Cubature in Besov Spaces with Dominating Mixed Smoothness on the Unit Square, Tino Ullrich Approximation numbers of Sobolev embeddings – sharp constants and tractability, Thomas Kühn, Winfried Sickel and Tino Ullrich The Curse of Dimensionality for Numerical Integration of Smooth Functions II, Aicke Hinrichs, Erich Novak, Mario Ullrich, Henryk Woźniakowski Complexity of numerical integration over spherical caps in a Sobolev space setting, Kerstin Hesse A lower bound on complexity of optimization under the r-fold integrated Wiener measure, James M. Calvin ------------------------------------------------------- End of Digest **************************