Simulating Subsurface Flow and Transport on Ultrascale Computers using PFLOTRAN

Conference · Sat Dec 01 00:00:00 EST 2007

DOI:https://doi.org/10.1088/1742-6596/78/1/012051· OSTI ID:936538

Mills, Richard T. ^[1]; Lu, Chuan ^[2]; Hammond, Glenn ^[3]; Lichtner, Peter ^[2]

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1. ORNL
2. Los Alamos National Laboratory (LANL)
3. Pacific Northwest National Laboratory (PNNL)

We describe PFLOTRAN, a recently developed code for modeling multi-phase, multicomponent subsurface flow and reactive transport using massively parallel computers. PFLOTRAN is built on top of PETSc, the Portable, Extensible Toolkit for Scientific Computation. Leveraging PETSc has allowed us to develop--with a relatively modest investment in development effort--a code that exhibits excellent performance on the largest-scale supercomputers. Very significant enhancements to the code are planned during our SciDAC-2 project. Here we describe the current state of the code, present an example of its use on Jaguar, the Cray XT3/4 system at Oak Ridge National Laboratory consisting of 11706 dual-core Opteron processor nodes, and briefly outline our future plans for the code.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 936538
• Resource Relation: Journal Volume: 78; Conference: SciDAC 2007 - Boston, Massachusetts, United States of America - 6/24/2007 12:00:00 AM-6/28/2007 12:00:00 AM
• Country of Publication: United States
• Language: English

Related Subjects

97 MATHEMATICS AND COMPUTING
54 ENVIRONMENTAL SCIENCES
P CODES
FLOW MODELS
MULTIPHASE FLOW
GROUND WATER
LIQUID FLOW
ENVIRONMENTAL TRANSPORT
PERFORMANCE
COMPUTERIZED SIMULATION