NA Digest, V. 21, # 33

NA Digest Tuesday, August 31, 2021 Volume 21 : Issue 33

Today's Editor:

Daniel M. Dunlavy
Sandia National Labs

Today's Topics: Subscribe, unsubscribe, change address, or for na-digest archives:

Submissions for NA Digest:

From: James Demmel
Date: August 25, 2021
Subject: Feedback on improved exception handling in BLAS/LAPACK

Motivated by user feedback, recent events like a robotic car crash
caused by a NaN [1], and the growing need for reliable software more
generally, those of us responsible for the BLAS, LAPACK, and related
libraries have developed a proposed plan for improved exception
handling in these libraries:

Your feedback on this plan is welcome! Please send your comments, and
any questions, to

Jim Demmel, Jack Dongarra, Julien Langou and Michael Mahoney

[1] J. Demmel and E. J. Riedy. A new IEEE 754 standard for
floating-point arithmetic in an ever-changing world. SIAM News,
July/August 2021.

From: Kris ONeill
Date: August 24, 2021
Subject: New Book, Lectures on Stochastic Programming: Modeling and Theory

Lectures on Stochastic Programming: Modeling and Theory, Third Edition
By Alexander Shapiro, Darinka Dentcheva, Andrzej Ruszczynski

An accessible and rigorous presentation of contemporary models and
ideas of stochastic programming, this substantially revised edition
focuses on optimization problems involving uncertain parameters for
which stochastic models are available. It presents a modern theory of
stochastic programming, including expanded and detailed coverage of
sample complexity, risk measures, and distributionally robust
optimization. It adds two new chapters that provide readers with a
solid understanding of emerging topics; updates Chapter 6 to now
include a detailed discussion of the interchangeability principle for
risk measures; and presents new material on formulation and numerical
approaches to solving periodical multistage stochastic programs.

2021 / xv + 525 pages / Hardcover / 978-1-611976-58-8 / List $104.00 /
SIAM Member $72.80 / MO28

SIAM Bookstore:

From: Kris ONeill
Date: August 24, 2021
Subject: New Book, Numerical Continuation and Bifurcation in Nonlinear PDEs

Numerical Continuation and Bifurcation in Nonlinear PDEs
by Hannes Uecker

This book provides a hands-on approach to numerical continuation and
bifurcation for nonlinear PDEs in 1D, 2D, and 3D. Partial differential
equations (PDEs) are the main tool to describe spatially and
temporally extended systems in nature. PDEs usually come with
parameters, and the study of the parameter dependence of their
solutions is an important task. Letting one parameter vary typically
yields a branch of solutions, and at special parameter values, new
branches may bifurcate. After a concise review of some analytical
background and numerical methods, the author explains the free MATLAB
package pde2path by using a large variety of examples with demo codes
that can be easily adapted to the reader's given problem.

2021 / xvi + 364 pages / Softcover / 978-1-611976-60-1 / List $89.00 /
SIAM Member $62.30 / OT174

SIAM Bookstore:

From: Jakub Sistek
Date: August 27, 2021
Subject: Domain Decomposition Methods, Czech Republic, Jul 2022

The 27th International Conference on Domain Decomposition Methods
(DD27) will be held in Prague, Czech Republic during July 25-29, 2022.

The purpose of the meeting is to discuss recent developments in
various aspects of domain decomposition methods bringing together
mathematicians, computational scientists and engineers who are working
on numerical analysis, scientific computing, high performance
computing, and computational science with industrial applications.

DD27 will be organised jointly by the VSB - Technical University of
Ostrava, the Institute of Mathematics of the Czech Academy of
Sciences, Prague, and the Czech Technical University in Prague.

The organizing committee hopes that the conference will restart the
standard conference scheme after the COVID restrictions. Nevertheless,
a hybrid format is also considered should the pandemic situation
require it.

For more information, please visit the conference website at

From: Pamela Bye
Date: August 31, 2021
Subject: Maths in Human Society, ONLINE, Sep-Oct 2021

LMS/IMA Joint Meeting 2021 - Maths in Human Society
Thursday September 30, 2021 - Friday October 1, 2021
Free Online Event

We are excited to announce and invite you to the 2021 LMS/IMA joint
meeting. This event will include a number of mathematical lectures, as
well as artistic exhibitions, all focused around the theme of Maths in
Human Society. Our invited speakers will discuss a range of topics
including pure and applied geometry, network science, and urban
systems. The Arts event will showcase work of collaborations between
mathematicians and artists to explore creativity in mathematical
research and ways to engage a public audience. It will be followed by
a Q&A.

Invited Speakers: Prof. Desmond Higham of the University of Edinburgh,
Prof Ginestra Bianconi of Queen Mary University of London,
Dr. Schleimer of the University of Warwick, Dr. Elsa Arcaute of
University College London, Prof. Christian Mueller of TU Wien.

Participating Artists: Lee Allatson, Liam Taylor-West, Chloe
Aligianni, Jenny Hibberd, Johnny Johnston.

Registration is now open.

From: Robert Beinert
Date: August 25, 2021
Subject: Mathematics of Imaging, Germany, Oct 2021

The registration for the kick-off workshop of the Thematic Einstein
Semester on "Mathematics of Imaging in Real-World Challenges" is open.

The kick-off workshop will take place on October 6th 2021 online and
October 7th and 8th in person at the Physikalisch-Technische
Bundesanstalt Institute Berlin (PTB), Germany.

The event will bring together speakers from academia and industry. The
workshop will include special sections on open access software and
real-world applications, a panel discussion on "Public Software and
Rewarding in Science" and "Career Pathways" as well as a poster
session for students and young researchers.

Registration is free of charge, but mandatory.

Further information are available at

From: Rob Akers
Date: August 23, 2021
Subject: Computational Physicist/HPC Position, UKAEA, UK

Are you interested in contributing and helping to shape the future of
the world's energy? UKAEA are at the forefront of producing energy
economically from magnetically confined fusion reactions. A vacancy
has opened at UKAEA, preferably but not necessarily located at Culham
near Oxford, for HPC-related work modelling plasmas using kinetic
theory, suitable for a person who is or might reasonably be expected
to become a recognised international expert in numerical simulation in
this area.


In addition, more junior roles are also available:

Deadline for applications, not later than 3rd September 2021.

From: David Knezevic
Date: August 24, 2021
Subject: Simulation Software Engineer Position, Akselos

Akselos is a fast-growing simulation technology company (spin-off from
MIT) that provides advanced for physics-based Digital Twins of
critical infrastructure for a wide range of industries.

Akselos has an opening for a Simulation Software Engineer position,
based in one of our offices in the US or Europe, or remote. The role
is focused on development of high-performance reduced order modeling
and FEA-based software as part of our Digital Twin software platform.

The ideal candidate would have the following skills:
- Expert with C++ (Python experience a plus)
- Strong background in scientific computing with C++
- Experience with development of FEA-based structural analysis
software (linear and nonlinear) with FEA
- Experience with development of FEA software in a commercial setting
is a plus
- Experience with open-source C++ FEA libraries is a plus
(e.g. libMesh, Deal.II, PETSc, etc.)

Please see the link below for further details, and to apply:

From: Michael Shoushani
Date: August 31, 2021
Subject: Tenure Track Assistant Professor Position, Mathematics, WCSU

Western Connecticut State University is accepting applications for a
tenure track Assistant Professor position in the Department of
Mathematics to begin with the Spring 2022 semester. A Ph.D. in
Mathematics, Applied Mathematics, or Statistics is required and the
candidate must have expertise in mathematical and computational

Our Department offers a BS degree in Applied and Computational
Mathematics with options in the mathematics of data science and
machine learning, actuarial science, and applied differential
equations and scientific computing, BA and MA degrees in Mathematics,
a BS degree in Secondary Education Mathematics (in collaboration with
the Education and Educational Psychology Department), and a
Mathematics minor.

The position advertisement with application instructions can be found

If candidates have questions regarding the application process, they
may contact Michael Shoushani at and he will see
to it that their questions are forwarded to the appropriate person.

From: Kui Ren
Date: August 28, 2021
Subject: Assistant Professorship Position, Applied Math, Columbia

The Department of Applied Physics and Applied Mathematics (APAM) at
Columbia University in the City of New York invites applications for a
limited term Assistant Professor faculty position in the area of
applied and computational mathematics. The position begins July 1,
2022 for a term of 3 years. Salary is competitive and teaching is
relatively light. Basic responsibilities focus on teaching, research
and service. A recent PhD and extraordinary promise in research are
required. A broad array of research groups is active in the
department, with current research encompassing applied and
computational mathematics, and their application to many areas of
physics, materials, biology, earth science, as well as imaging and
data science. There is a strong cohort of activities on applied and
computational mathematics within the Fu Foundation School of
Engineering and Applied Sciences and the affiliated Data Science
Institute. The Department is especially interested in qualified
candidates who can contribute, through their research, teaching,
and/or service, to the diversity and excellence of the academic
community. Applicants are encouraged to apply through mathjobs at:

Applications must include: (a) curriculum vitae (b) statement of
research, (c) statement of teaching, and (d) at least three letters of

Applications received by November 15, 2021 will be given full
consideration. Applicants are encouraged to consult for more information about the
applied mathematics program, and for more
information about the department.

From: Bruno Carpentieri
Date: August 24, 2021
Subject: University Assistant Position, Free Univ of Bozen-Bolzano

A fixed-term (3 years) University Assistant position is immediately
available at the Faculty of Computer Science, Free University of
Bozen-Bolzano, for candidates with expertise and interest in at least
one of the following areas: computational mathematics, numerical
analysis, high-performance and parallel computing, data-driven
modeling and learning, large-scale physics simulations.

Please feel free to address any inquiries at, or visit the link below for more

From: J. Lu
Date: August 25, 2021
Subject: Research Scientist/Postdoc Positions, Comp Vision/ML/Optim, SZU

Job Type: Full-Time for Research Scientist/PostDoc
Duration: 2 years
Number of Position: 2 Positions
Salary for PostDoc: about 340,000 RMB -- 420,000RMB per year.
Salary for Research Scientist: about 320,000 RMB -- 500,000RMB per year.
Closing Date: Open Until Filled.

Description: We have projects that are looking for Research Scientists
in Optimization, Computer Vision, Image/Video/Signal
Processing/Analysis, Harmonic Analysis, Machine Learning, etc.

We have no teaching tasks.

Promotors: Prof. Jian Lu (Shenzhen Key Laboratory of Advanced Machine
Learning and Applications, College of Mathematics and Statistics,
Shenzhen University, Shenzhen, China. email:;

Those who are interested in Research Scientist please send their
C.V. to Prof. Dr. Jian Lu (email:;

From: Cassio M. Oishi
Date: August 27, 2021
Subject: Postdoc Position, Sao Paulo State Univ (UNESP), Brazil

The Center for Research in Mathematical Sciences Applied to Industry
(CEPID-CeMEAI) opens a post-doctoral research position. The selected
candidate will work at Sao Paulo State University (UNESP), in
Presidente Prudente/SP, Brazil. Sao Paulo Research Foundation provides
financial support with a monthly salary of R$ 7.373,10 and a research
contingency fund, equivalent to 10% of the annual value of the
fellowship which should be spent in items directly related to the
research activity. The position is for one year. Project:
Mathematical modelling and computational simulation of drug delivery
systems: applications in Ophthalmology. Supervisor: Cassio M. Oishi

This position for 1-year post-doctoral fellowship is focused on the
study of mathematical models for drug delivery systems with
applications in ophthalmology. The main purposes of this project are
related to developments and investigations of numerical schemes for
dealing with the fluid dynamics and pharmacokinetics of the
eyes. Applicants must have received, or expect to complete, a
doctorate in Mathematics, Engineering, or related
discipline. Selection criteria will include demonstrated research
ability in Mathematical Modelling, Computational Fluid Dynamics with a
strong background in numerical analysis. In addition, it is also
desirable that the candidate has experience in programming skills (C,
C++,OpenFOAM) and basic knowledge in data science. The current project
will be developed in collaborations with researchers of the retina
study group.The fellow will work under the direction of Cassio
M. Oishi at the Sao Paulo State University (UNESP), Presidente
Prudente, Brazil. To apply please E-mail (only PDF files) the
following items at until 30th September
2021:1. A letter of interest, containing full contact information,
year graduated and citizenship/immigration status, concisely
responding to the research emphases above; 2. A CV;3. A cover letter
including names and contact information for 3 references(no letters
please).Indicate "CEPID Postdoc" in the subject field.

From: David Bolin
Date: August 29, 2021
Subject: Postdoc Position, Statistics, KAUST

One postdoctoral fellowship in statistics is currently available in
the Stochastic Processes and Applied Statistics research group
( at King Abdullah University of Science
and Technology (KAUST).

The general research area of the position is spatio-temporal
statistics. Specific research topics will depend on the background of
the candidate, possible topics include: Construction of non-Gaussian
models based on stochastic partial differential equations (SPDEs) and
the analysis of their properties; theoretical analysis of kriging and
Gaussian processes; Numerical discretization methods of SPDEs and
their use for computationally efficient statistical inference;
Multivariate random fields; and Spatio-temporal models. The starting
date is immediately or to be arranged. The postdoctoral appointment is
renewable annually. The expected duration is 2-3 years.

KAUST is an international, graduate-only research university located
on the shores of the Red Sea in Saudi Arabia less than an hour drive
north of Jeddah. As a KAUST postdoc, you will have access to
state-of-the-art research facilities, including a supercomputer. You
will work in an exciting international environment with researchers
from over 100 nationalities. You will also have the opportunity to
boost your career development and training. Postdocs receive highly
competitive salaries and other benefits, inclusive of accommodation,
healthcare, medical and dental insurance, relocation allowance, one
round-trip travel to home country per year, access to on-campus
daycare and International Baccalaureate (IB) school, and free in-and
off-campus transportation (on-demand as well as scheduled).

For further details, see:

From: Marie E. Rognes
Date: August 31, 2021
Subject: PhD/Postdoc Positions, Scientific Computing, Simula Research

In the Department for Scientific Computing and Numerical Analysis at
Simula Research Laboratory, Oslo, Norway, we now have openings for 1-2
PhD candidates and/or postdoctoral fellows to join our research
project Exciting times: Extreme modelling of excitable tissue
(EMIx). For information and application links, please see:

Candidates should have a solid background in applied mathematics,
scientific computing, computational science, bioengineering or related
fields, and an interest in contributing to neuroscience. For one of
these positions, we are especially interested in candidates with a
strong interest in high performance computing.

We will evaluate applications on a rolling basis until October 15
2021. Applicants passing through to the first interviews (online)
will be contacted before November 1 2021.

From: S
Date: August 25, 2021
Subject: PhD Position, Computational Biomedicine, USI, Switzerland

The Center for Computational Medicine in Cardiology (CCMC), Universita
della Svizzera italiana (Lugano), is seeking for a highly motivated
PhD student to develop innovative numerical discretization strategies
to robustly solve on exascale HPC systems the cell-by-cell bidomain
model of cardiac electrophysiology at subcellular scale. A strong
background in numerical analysis and computational science is
requested. The PhD student will join the EuroHPC MICROCARD consortium,
a multi- disciplinary and international team with the ambitious goal
of simulating a cell-by-cell electrophysiology model of the heart at
organ-scale. The PhD will benefit from the opportunity to work and
collaborate with leading experts in the field of cardiac modeling,
large-scale numerical simulations, deep learning, and HPC systems.

Further details on the call may be found here:

Further information on the MICROCARD project:

Interested candidates must send their application documents (cover
letter, CV, description of research interests and experience, names of
at least two academic references), preferably as single PDF file, to
Prof. Rolf Krause ( and Dr. Simone Pezzuto

From: Thorsten Hohage
Date: August 31, 2021
Subject: PhD Position, Plasmonic Resonances/Inverse Problems, Gotttingen

The Collaborative Research Center (CRC) 1456 Mathematics of
Experiment: The challenge of indirect measurements in the natural
sciences at the Georg-August-University Gottingen offers the position
of a PhD student (75% TV-L E13) for three years starting Oct. 15,
2021. The researcher will work on the project C01 "Density matrix
reconstructions in ultrafast free electron optics" in the research
group of Thorsten Hohage, co-supervised by Claus Ropers regarding
physical aspects. Depending on the interests of the candidate
different directions of research are possible. One focus could be the
numerical and analytical study of plasmonic resonances described by
Maxwell's equations and inference on such resonances from experimental
data. Another potential focus is the design and analysis of algorithms
for inverse problems with matrix-valued unknowns.

Your profile: You hold a MSc degree (or equivalent) in mathematics or
a related field. You have a background in inverse problems, partial
differential equations or optimization. You are interested to work in
an interdisciplinary team with an experimental lab and ideally have
some background knowledge of physics. You are fully proficient in
written and spoken English.

Your application including a curriculum vitae, a letter of motivation,
copies of your certificates and contact information of at least two
references should be submitted to the online application platform by September 21,
2021. Contact: Thorsten Hohage ( or Eva
Hetzel (

End of Digest