Principal
Member Technical Staff
Sandia
National Laboratories
(telecommuting
from UW-Madison)
Adjunct
Professor
Engineering
Physics Department
University
of Wisconsin-Madison
1500
Engineering Drive Phone: (608) 263-8485
Madison,
WI 53706 FAX: (608) 263-4499
Email: tjtautg@sandia.gov
EDUCATION:
University
of Wisconsin-Madison Dept. of
Nuclear Engineering and PhD,
1990
Engineering Physics
Dissertation: The Parallel
Processing of Nuclear Power Plant Severe Accident Simulation Codes
Advisor: Prof. Gregory A. Moses
University
of Wisconsin-Madison Dept. of
Nuclear Engineering and MS,
1989
Engineering Physics (GPA:
3.86/4.0)
University
of Wisconsin-Madison Dept. of
Nuclear Engineering and BS,
1985
Engineering Physics (GPA:
3.90/4.0)
(Graduated with Highest
Distinction)
AWARDS AND HONORS:
·
Adjunct
Professor, Engineering Physics Department, UW-Madison, 1999-present.
·
Award
for Excellence, Sandia National Laboratories, February 23, 1999
(for delivering FEA mesh for radiation hardness certification application).
·
Award
for Excellence, Sandia National Laboratories, April 8, 1998
(for technical excellence in certification of MC4380 to hostile environments).
·
Division
9000 Employee Recognition Award (Leadership) nominee, February 4, 1997.
·
DOE
Nuclear Engineering Fellowship, 1986-1989.
·
ANS
Graduate Student Scholarship, 1987.
·
INPO
Undergraduate Scholarship, 1984-1985.
·
UW
School of Engineering Fred W. and Josephine H. Colbeck Scholarship, 1984, 1985.
EMPLOYMENT:
2000-present Adjunct Professor, Instructor
(NEEP602/CS838, Parallel & High Perf. Computing)
Engineering Physics
Department
University of
Wisconsin-Madison, Madison, WI
1994-present Senior, Principal Member Technical Staff
Parallel Computing Sciences
Department
Sandia National Laboratories, Albuquerque, NM
1992-1994
Senior
Member Technical Staff
Thermal Hydraulics Analysis Department
Sandia National Laboratories, Albuquerque, NM
1990-1991
Visiting
Scientist
Thermal Hydraulics Group
CEC Joint Research Centre, Ispra, Italy
1989-1990 Research Associate
Nuclear Engineering
& Engineering Physics Dept.
University of
Wisconsin-Madison, Madison, WI
Summer
1987 Summer Intern
Thermal Hydraulics
Analysis Department
Sandia National
Laboratories, Albuquerque, NM
1985-1989
U.S.
Dept. of Energy Nuclear Engineering Fellowship
University of Wisconsin-Madison, Madison, WI
Summer
1985 Summer Intern
Byron Nuclear Power
Station
Commonwealth Edison Co.,
Byron, IL
1984-1987
Reactor
Operator
University of Wisconsin Reactor Laboratory
University of Wisconsin-Madison, Madison, WI
1983-1984
Grader,
ME 367, Thermodynamics
Mechanical Engineering Department
University of Wisconsin-Madison, Madison, WI
1982-1983
Student
hourly employee
Campus Assistance Center
University of Wisconsin-Madison, Madison, WI
PROFESSIONAL EXPERIENCE:
·
CUBIT Project Leader
(1996-1998):
Served as technical and project lead for the CUBIT Mesh Generation Toolkit
Project at Sandia National Laboratories; provided technical vision for mesh
generation research and its implementation in the CUBIT code; during my tenure
as project leader, the project budget and staff increased approximately 300%;
as a result of my leadership, the CUBIT code represents the state of the art in
hexahedral mesh generation, and the CUBIT project is now used in the
Computational Sciences Center at Sandia National Laboratories as a benchmark of
a well-run project with a highly functioning team.
·
CUBIT project member
(1994-present): As a member of the CUBIT Mesh Generation Toolkit project, I have been
responsible for many areas of research and development in hex mesh generation;
some of these include all-hexahedral meshing algorithms, parallel mesh
generation, geometric feature recognition and detail reduction, and code
architecture and design.
·
Thesis advisor, University
of Wisconsin-Madison (1996-present): Participating in the technical guidance and
advising of three graduate students (two in Mechanical Engineering, one in
Engineering Physics depts.). Under my
guidance, students have performed research and implemented that research into
CUBIT. Some of this capability is the
foundation of work by at least three other CUBIT project staff.
·
High Performance Computing
(1988-present): I have been involved in parallel computing in one way or another for
over a decade. I utilized shared memory
parallel computing in my dissertation research (Alliant FX/8, Sequent Balance);
distributed memory parallel computing during my year in Italy (UNIX
workstations, Transputer-based machines); and I have been associated with one
of the best-known parallel computing research organizations at Sandia, where I
have addressed the pre-processing needs of massively parallel finite element
analysis codes. I am preparing to teach
a course on Parallel and High Performance Computing in the Fall semester as
part of a new Computational Science Professional Master's degree program at
UW-Madison, which I am also helping put into place.
·
Member, Steering Committee,
8th, 9th International Meshing Roundtable conference
(1998-2000):
Serving two-year position on the Steering Committee for the International
Meshing Roundtable conference; this is the premier conference on unstructured
mesh generation worldwide. I also
served as Technical Chairman for the 4th IMR, and brought about the
current Steering Committee-based form of organizing this conference.
·
Developer and Analyst,
MELCOR project (1992-1994): As a member of the MELCOR project at Sandia National Laboratories, I
participated in the development of MELCOR reactor core models for naval
reactors and for the DOE New Production Reactor. I also performed analyses of the DF-4 and MP-1,2 core melt
experiments with MELCOR.
·
Reactor Operator, University
of Wisconsin Reactor Laboratory (1984-1987): Performed nuclear reactor operation and maintenance
as part of my duties as an NRC-licensed Reactor Operator.
SERVICE:
Short
Course Instructor, Mesh Generation for High Performance Computing, SC2000,
2000.
Member,
Steering Committee, 8th, 9th International Meshing
Roundtable conference, 1998-2000.
Instructor,
Mesh Generation Short Course, 8th, 9th International
Meshing Roundtable, 1999, 2000.
President,
Country Grove Neighborhood Association, Madison, WI, 2000-2001.
Sunday
School Teacher (PreK-K), Blackhawk Evangelical Free Church, 1999-2000.
Teacher's
Aid (Children's Church), St. Stephens United Methodist Church, Albuquerque, NM,
1997-1998.
Treasurer,
American Nuclear Society student chapter, UW-Madison, 1986-1987.
RESEARCH INTERESTS:
·
Hexahedral
mesh generation for finite element codes
·
Solid
geometry tools and algorithms for mesh generation
·
Parallel
geometry and mesh generation tools
·
Solid
geometry-enabled computational simulation
·
Model-based
simulation
RESEARCH & TEACHING
PHILOSOPHY:
"Learning includes
application; application is founded on learning; technical excellence requires
both."
In
order to achieve technical excellence, we as scientists and engineers must
strive for balance between theory and application. Too much theory can lead to problems with relevance; application without
theoretical foundation yields brittle, ad-hoc solutions. This balance can be achieved on an
individual basis or, more commonly, is achieved in a team environment. I am a strong advocate of working in teams,
not for the sake of teams themselves, but for the increased productivity that
usually results. I view my roles as
researcher and educator as inseparable; this dual purpose not only improves the
quantity and quality of my research, but also produces well-rounded graduates,
to further advance the state of the art and practice in science and
engineering.
TEACHING EXPERIENCE:
·
Instructor,
Parallel and High Performance Computing, NEEP 602/CS 838, University of
Wisconsin-Madison, Semester I(Fall) 2000-2001.
·
Short
Course Co-Instructor, Mesh Generation for High Performance Computing Part II:
Mesh Generation for Massively Parallel-Based Analysis, Supercomputing 2000,
November 5, 2000.
·
Short
Course Co-Instructor, Geometry Issues in Mesh Generation, 9th
International Meshing Roundtable, New Orleans LA, October 2, 2000.
· Short Course Instructor, New Advances and Open Issues in Hexahedral Mesh Generation, 8th International Meshing Roundtable, Lake Tahoe CA, October 10, 1999. Instructor, The CUBIT Mesh Generation Toolkit, PET Grid Generation Training Class, Waterways Experimental Station, Vicksburg MS, May 12, 1998.