NA Digest Thursday, September 25, 2014 Volume 14 : Issue 33

Today's Editor:
Daniel M. Dunlavy
Sandia National Labs

Submissions for NA Digest:


From: François Pellegrini
Date: September 20, 2014
Subject: Revision 6.0.1 of Scotch is out

We announce the release, as libre/free software, of revision 6.0.1 of
the SCOTCH and PT-SCOTCH software package and library for sequential
and parallel graph partitioning, sequential and parallel graph
clustering, sequential mesh/hypergraph partitioning and static
mapping, and sequential and parallel sparse matrix block ordering.

While revision 6.0.1 is technically a bugfix release, with no apparent
new features, much has changed "under the hood".
- Sequential algorithms for repartitioning and (re)partitioning with
fixed vertices have been improved.
- Multithreading issues have been solved.
- From now on, there is no separate "*_esmumps" version for
interfacing with the MUMPS solver. The additional libraries can be
generated by running "make esmumps" for the sequential libraries and
"make ptesmumps" for the parallel libraries.

Parallel static mapping and parallel direct k-way graph repartitioning
with fixed vertices will be available in release 6.1.

Scotch can be freely downloaded, under the terms of the CeCILL-C free
software license. To ease the development, diffusion, and circulation
of information regarding the SCOTCH project, most of its resources are
hosted on the InriaGforge platform provided by INRIA. Please refer to
the SCOTCH web pages at:


From: Dominik Meidner
Date: September 19, 2014
Subject: Extreme Fluids, Germany, Nov 2014

We would like to announce the symposium "Simulation and Optimization
of Extreme Fluids", November 10-12, 2014 at the IWH (Internationales
Wissenschaftsforum) Heidelberg. See the web-page http://numerik.uni- for details.

The focus of this symposium is on modern simulation and optimization
approaches for flows at extreme configurations, such as nonlinear
material behavior, high pressures, high Reynolds or Weissenberg
numbers or those including free surfaces or particles.

We invite you to submit an abstract for a 25 minute talk during this
symposium. Please register with an email to sopef@iwr.uni- not later than October 10th.

Further, we want to draw your attention to the subsequent winter
school "Simulation and Optimization of Extreme Fluids", November 13-
14, 2014 at the IWR (Interdisciplinary Center for Scientific
Computing) in Heidelberg.

See for details.

Students can register for this winter school by mail to not later than October 10th.


From: Eric Chung
Date: September 24, 2014
Subject: Inverse Problems and Optimal Control, Hong Kong, Dec 2014

International Conference on Inverse Problems and Optimal Control
The Chinese University of Hong Kong
December 4-6, 2014

Inverse Problems has become a very active, interdisciplinary and
well-established research area over the past two decades, the same as
Optimal Control. Both areas are closely related to each other and have
found wide applications in engineering, industry, medicine, as well as
life and earth sciences.

This international conference aims to provide a forum for researchers
from the world to present and exchange their latest research
achievements on Inverse Problems and Optimal Control, as well as their
applications. It also aims to promote collaborative research on
Inverse Problems and Optimal Control between China and the rest of the
world. This conference will encourage international collaboration and
interactive activities on Inverse Problems and Optimal Control and
provide an opportunity for young researchers to learn the current
state of the art in the fields and present their recent research
results as well.

In addition to the invited talks, contributed talks are
welcome. Moreover, some financial supports are available for young
researchers and graduate students.

See website for more details:


From: Richard Xu
Date: September 23, 2014
Subject: Tensors and Matrices, China, Dec 2014

The 2014 conference on Tensors and Matrices and their Applications
(TMA2014) will be held in Suzhou, China, Dec. 16-19, 2014. The goal of
TMA2014 is to bring these researchers working in tensors and the
matrix theory or their applications to discuss novel methods and
applications as well as theoretical advances.

TMA2014 is endorsed by The International Linear Algebra Society(ILAS)
and is jointly sponsored by The Hong Kong Polytechnic Univ.(HK PolyU),
Fudan Univ., Jiangsu Normal Univ.(JSNU) and Suzhou University of
Science and Technology (USTS).

TMA2014 have got sponsorship from the Mathematical Center of Chinese
colleges, the Suzhou Municipal Government, and China National Natural
Science Foundation. It is co- host by USTS and JSNU. So far there are
31 confirmed invited speakers from more than ten countries or areas
outside the mainland of China. Prof. Liqun Qi (HK PolyU) is the
honorary chairmen, and R. A. Brauldi (UW,Madison) , K. C. Chang
(Peking Univ.), C.K. Li (College of W&M) and Y.Z. Song (Nanjing Normal
Univ.) are the co-chairmen of Academic Committee of TMA2014. The
chairmen of the Organizing Committee include Y.M. Wei (Fudan
Univ.),Z.K. Miao (JSNU), and Changqing Xu (USTS). The local chair is
J.R. Wu (USTS).

The journal of Linear and multilinear algebra (Tailor and Francis,
abbr. LAMA) and The Frontier of Mathematics in China (Springer,
abbr.FMC) will publish special issues for TMA2014 after the
meeting. The deadline for submission of (full) papers to LAMA is
April, 30, 2015, and deadline for submission to FMC is Feb.,28,
2015. For more detail concerning the participation of TMA2014 or the
paper submission, please visit:


From: Tilo Arens
Date: September 23, 2014
Subject: WAVES 2015, Germany, July 2015

Submission open for minisymposium proposals and contributed papers:

12th International Conference on Mathematical and Numerical
Aspects of Waves Propagation, WAVES 2015
KIT , Karlsruhe, Germany from July 20th-24th, 2015

Submission deadline for contributed papers is February 1,
2015 (acceptance notification by March 27th, 2015).
Submission deadline for minisymposium proposals is December 15, 2014.
Detailed guidelines for writing papers can be found on

Themes include: Forward and Inverse Scattering, Fast Computational
Techniques, Numerical Analysis, Approximate Boundary Conditions,
Domain Decomposition, Analytical & Semi-analytical Methods, Nonlinear
Wave Phenomena, Water Waves and Coastal Modeling, Guided Waves and
Random Media, Medical and Seismic Imaging.

List of confirmed invited speakers:
Lehel Banjai (Heriot-Watt University Edinburgh, UK)
Kurt Busch (Humboldt Universität Berlin, Germany)
Leszek F. Demkowicz (University of Texas at Austin, USA)
Sonja Fliss (ENSTA ParisTech, France)
Mark Groves (Universität des Saarlands, Germany)
Thorsten Hohage (Universität Göttingen, Germany)
Peter Kuchment (Texas A&M University , USA)
Andrew Norris (Rutgers University, USA)
Michael Weinstein (Columbia University, USA)


From: Alberto F. Martín
Date: September 24, 2014
Subject: HPC Scientific Software Engineer Position, CIMNE/UPC

The HPSC team at CIMNE/UPC is seeking a candidate to work in the
framework of the "FEXFEM: On a free open source extreme scale finite
element software" project. The main goal of FEXFEM is to consolidate
the scientific computing software package being developed by the
experts of the HPSC team, the so-called Finite Element Multiphysics
PARallel software (FEMPAR), as a successful high-quality free open
source software project.

We are looking for highly motivated candidates with a BSc degree in
computer science or strongly related engineering degree. A MSc degree
and/or postgraduate training on parallel distributed-memory computing,
or related area, would be highly appreciated, although it is not a

The mandatory skills for the position are: (1) Excellent programming
skills, both in scripting and compiled languages, preferably
Fortran95/03 and python, resp. (2) Expertise in Unix-like environments
(mainly bash scripting).

The highly appreciated/optional experience is (1) Contributor in free
open source software projects, ideally related to the scientific
computing domain. (2) Effective exploitation of standard tools for
task automation and documentation in free open source software
projects, such as e.g., CMake, CTest, Git, pFUnit, Bugzilla, and/or
Doxygen. (3) Compilation, installation, and usage of parallel
distributed-memory libraries.

The initial appointment will be for one year, although it is
extensible depending on available funding. The position will remain
open till appropriate candidates will be found but it is recommended
to apply before the end of December, 2014.

Please contact, or visit
for further information. Send your application, providing CV, to


From: Paul Constantine
Date: September 22, 2014
Subject: Assistant Professor Position, Applied Math, Colorado School of Mines

The Department of Applied Mathematics and Statistics at the Colorado
School of Mines invites applications for an anticipated position in
applied mathematics at the rank of Assistant Professor beginning in
fall 2015. Preference will be given to those with expertise in
mathematical modeling and demonstrated involvement in
interdisciplinary applications. Faculty research interests include
scientific computing, numerical analysis, wave theory, multi-scale
simulation, partial differential equations, inverse problems, nuclear
science, and mathematical biology.

See the following flyer from the department website for more
information, including how to apply:

Review of applications will begin by November 15, 2014.


From: Petra Markert-Autsch
Date: September 25, 2014
Subject: Junior Professor Position, Mathematics, JMU Wuerzburg

The Department of Mathamatics of the Julius-Maximilians-University
of Würzburg has a vacancy to be filled as from 01.04.2015 for the
following position:

Junior Professorship for Mathematical 4D Microscope Modeling, Image
Analysis and Data Processing

Wanted is a young scientist working in the field of applied
mathematics with experience in the field of mathematical modeling,
stochastic analysis, data mining, and mathematical image processing.

This personality should have an excellent profile in teaching and
research with internationally visible research achievements. This
professorship will contribute to the research and development of
interdisciplinary research between mathematics and biology, physics,
computer science, and medicine and the networking of these areas while
also contributing to the scientific developments within the Chair of
Scientific Computing, Mathematik IX.

The candidate is required to have successfully completed her/his
graduate studies and received an excellent doctoral degree. Post-doc
experience is desired.

A detailed job description can be found under the following link:


From: Des Higham
Date: September 23, 2014
Subject: Fellowship -> Tenured Positions, Univ of Strathclyde

The University of Strathclyde (Glasgow, UK) will award up to 20
Chancellor's Fellowships to early career academic staff members in
areas of strategic priority, which include

Data Science
Complex networks in nature, society and technology
Smart Cities

Fellows will have reduced teaching teaching loads for a period of 5
years, with an expectation of tenure subject to appropriate

Further details at
Informal enquiries from researchers in computational sciences may
be made to Des Higham: d.j.higham "at symbol"


From: Andreas Stathopoulos
Date: September 23, 2014
Subject: Postdoc Position, CS, William and Mary

Applications are invited for a postdoc position in the Computer
Science Department at the College of William and Mary, Williamsburg,
VA, USA. This is funded by two NSF projects with overlapping
objectives; First to extend the PRIMME eigenvalue package (esp. toward
generalized eigenvalue and SVD problems). Second, to research variance
reduction mechanisms for the stochastic estimation of the trace of
functions of matrices (esp. inverse and exponential). The research is
partly in collaboration with the Physics Department at W&M and the
DOE's Jefferson Lab.

Candidates should have a Ph.D. in a scientific computing area, strong
background in numerical linear algebra and high performance computing,
and good programming skills in C/C++. The position is for one year,
renewable for a second year based upon performance.

To apply submit a vita and the names of two references at, Position Number: F0842W. Reviewing of
applications starts on October 20, 2014 and continues until the
position is filled.


From: Zhiliang Xu
Date: September 19, 2014
Subject: Postdoc Positions, Computational Biology

We invite applications for two NIH funded postdoctoral research
positions in the computational biology group in the Department of
Applied and Computational Mathematics and Statistics (ACMS),
University of Notre Dame. The goal of the project is to develop at
Notre Dame novel, multi-scale computational models to study blood clot
formation to be calibrated using specific experiments to be performed
at the University of Pennsylvania School of Medicine. Priority will
be given to candidates with research interests and experience in
biological modeling and parallel implementation of computational
models. Additional experience with image processing is a
plus. Applicants should also have experience in experimentation using
biophysical approaches or be willing to learn. Successful applicants
will be detail oriented, eager to learn new techniques; enthusiastic
about biological questions that are tackled within a multidisciplinary
team environment. It is likely that this position will involve some
travel to the University of Pennsylvania for collaborative
research. Positions are for 1 year with possible extension to up to
two more years. The salary is competitive. Applications, including
curriculum vitae and research statement, should be sent electronically
to Dr. Mark Alber at: Applicants should also arrange
for at least three letters of recommendation to be sent to the same
email address. The evaluation of candidates will begin immediately and
continue until the position is filled.


From: Russell Luke
Date: September 19, 2014
Subject: PhD Position, Continuous Optimization, Univ of Goettingen

Applications are invited for a PhD POSITION in
Institut for Numerical and Applied Mathematics,
Universitaet Goettingen (Germany).

International collaboration: this is a joint project with Prof. Marc
Teboulle at Tel Aviv University, and affiliate researcher Shoham
Sabach at the Technion in Haifa. The broad themes to be explored
involve analysis of first-order methods for structured, nonconvex

Administrative information: The position is a scholarship position,
and salary conforms to the provisions of the federal German pay
schedule (TV-L E13, 75%), depending on qualification and
expertise. The scholarship duration is 3 years. The University of
Goettingen is committed to increasing the numbers of underrepresented
groups pursuing higher degrees. The Institute for Applied and
Numerical Mathematics at Goettingen particularly strives to promote
the careers of women in the matheamtical sciences.

Start date: January 1, 2015 or as soon thereafter as possible. Please
send your application including relevant documents (cv, transcripts,
names and contact information of recommenders) by November 7, 2014 to:
Prof. Dr. Russell Luke,


From: Johan Jansson
Date: September 18, 2014
Subject: PhD Position, High Performance Scientific Computing, KTH

I am looking for a PhD student with a High Performance Scientific
Computing profile to work at KTH in Stockholm in the CTL group
(, part of the HPCViz department
( in an international
environment together with my CFDCT group at BCAM in Bilbao
( Our research
concerns adaptive FEM, the FEniCS open source software project for
automated solution of PDE ( in an HPC setting with
good scaling on supercomputers and current advanced applications in
simulating the turbulent flow around a full aircraft and the turbulent
fluid-structure dynamics of the vocal folds in the human voice (see for examples).

We recently received a PRACE Tier-0 supercomputing grant which enables
us to run our software and applications on the largest supercomputers
in Europe, and BCAM received a Severo Ochoa Center of Excellence
accreditation, ranking it as one of the best research centers in Spain
in all fields, and granting substantial funding.

The deadline for application is October 14 2014, for more details see
the formal call text:

and my home page at KTH:


From: Axel Ruhe
Date: September 22, 2014
Subject: Contents, BIT, 54 (3)

Volume 54, Number 3, September 2014

Preface to 54-3, A. Ruhe 585

A remedy for the failure of the numerical steepest descent method on a
class of oscillatory integrals, A. Asheim 587

A splitting preconditioner for the iterative solution of implicit
Runge-Kutta and boundary value methods, H. Chen 607

Second-order LOD multigrid method for multidimensional Riesz
fractional diffusion equation, M. Chen, Y. Wang, X. Cheng, W. Deng 623

Rotational image deblurring with sparse matrices, P.C. Hansen,
J.G. Nagy, K. Tigkos 649

Implicit Euler and Lie splitting discretizations of nonlinear
parabolic equations with delay, E. Hansen, T. Stillfjord 673

A control point based curve with two exponential shape parameters,
M. Hoffmann, I. Juhász, G. Károlyi 691

Accurate solutions of diagonally dominant tridiagonal linear systems,
R. Huang, J. Liu, L. Zhu 711

Accelerated convergence for Schrödinger equations with non-smooth
potentials, E. Kieri 729

Raising the approximation order of multivariate quasi-interpolants,
M. Lamnii, A. Mazroui, A. Tijini 749

On an exact numerical simulation of solitary-wave solutions of the
Burgers–Huxley equation through Cardano’s method, J.E. Macías-Díaz 763

An energy-preserving exponentially-fitted continuous stage Runge–Kutta
method for Hamiltonian systems, Y. Miyatake 777

A weak second-order split-step method for numerical simulations of
stochastic differential equations, C. Perret, W.P. Petersen 801

A note on L^\infty bounds and convergence rates of summation-by-parts
schemes, M. Svärd 823

Semi-discrete Schwarz waveform relaxation algorithms for reaction
diffusion equations, S.-L. Wu, M.D. Al-Khaleel 831

End of Digest