Implementation of an Euler/Navier-Stokes finite element algorithm on the Connection Machine
Conference
·
OSTI ID:5989337
- Thinking Machines, Inc., Cambridge, MA (USA)
Massively parallel computers such as the Connection Machine (CM-2) have the potential to reduce significantly the computational cost for large problems of interest to the aerospace community. This paper examines the applicability of the CM-2 to an explicit, time-marching finite element solution method for the Euler and Navier-Stokes equations. The CM-2 architecture and the CM FORTRAN language are introduced. The paper points out some of the pitfalls involved in putting this code on the CM-2, with emphasis on interprocessor communications issues. The use of the FastGraph communication compiler and grid renumbering to reduce communication costs is discussed. Performance comparisons which indicate the approximate equivalence of a uniprocessor Cray and 1/8 of a CM-2 (8192 processors) for some typical problems are presented. 8 refs.
- OSTI ID:
- 5989337
- Report Number(s):
- AIAA-Paper--91-0438; CONF-910117--
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
640410* -- Fluid Physics-- General Fluid Dynamics
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
ALGORITHMS
COMMUNICATIONS
COMPARATIVE EVALUATIONS
COMPUTER ARCHITECTURE
COMPUTERS
DIFFERENTIAL EQUATIONS
DIGITAL COMPUTERS
EQUATIONS
EQUATIONS OF MOTION
FINITE ELEMENT METHOD
FLUID MECHANICS
FORTRAN
MATHEMATICAL LOGIC
MECHANICS
NAVIER-STOKES EQUATIONS
NUMERICAL SOLUTION
PARALLEL PROCESSING
PARTIAL DIFFERENTIAL EQUATIONS
PERFORMANCE
PROGRAMMING
PROGRAMMING LANGUAGES
SUPERCOMPUTERS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
ALGORITHMS
COMMUNICATIONS
COMPARATIVE EVALUATIONS
COMPUTER ARCHITECTURE
COMPUTERS
DIFFERENTIAL EQUATIONS
DIGITAL COMPUTERS
EQUATIONS
EQUATIONS OF MOTION
FINITE ELEMENT METHOD
FLUID MECHANICS
FORTRAN
MATHEMATICAL LOGIC
MECHANICS
NAVIER-STOKES EQUATIONS
NUMERICAL SOLUTION
PARALLEL PROCESSING
PARTIAL DIFFERENTIAL EQUATIONS
PERFORMANCE
PROGRAMMING
PROGRAMMING LANGUAGES
SUPERCOMPUTERS