Time-dependent 3-D dterministic transport on parallel architectures using Dantsys/MPI

Conference · Tue Dec 31 00:00:00 EST 1996

OSTI ID:459814

Baker, R S; Alcouffe, R E

In addition to the ability to solve the static transport equation, we have also incorporated time dependence into our parallel 3-D S{sub {ital N}} code DANTSYS/MPI. Using a semi-implicit scheme, DANTSYS/MPI is capable of performing time-dependent calculations for both fissioning and pure source driven problems. We have applied this to various types of problems such as nuclear well logging and prompt fission experiments. This paper describes the form of the time- dependent equations implemented, their solution strategies in DANTSYS/MPI including iteration acceleration, and the strategies used for time-step control. Results are presented for a model nuclear well logging calculation.

• Research Organization: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 459814
• Report Number(s): LA-UR-96-4507; CONF-961249-3; ON: DE97003080
• Resource Relation: Conference: OECD/NEA meeting, Paris (France), 2-3 Dec 1996; Other Information: PBD: [1996]
• Country of Publication: United States
• Language: English

Related Subjects

44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
99 MATHEMATICS
COMPUTERS
INFORMATION SCIENCE
MANAGEMENT
LAW
MISCELLANEOUS
66 PHYSICS
RADIOACTIVITY LOGGING
D CODES
FISSION
THREE-DIMENSIONAL CALCULATIONS
GAMMA LOGGING
NEUTRON LOGGING
ITERATIVE METHODS
PROMPT NEUTRONS
TIME DEPENDENCE
PARALLEL PROCESSING