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NESC9593 SIMPLE.

SIMPLE, 2-D Hydrodynamic, Heat Flow Benchmark

NAME OR DESIGNATION OF PROGRAM, COMPUTER, DESCRIPTION OF PROGRAM OR FUNCTION, METHOD OF SOLUTION, RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM, TYPICAL RUNNING TIME, UNUSUAL FEATURES OF THE PROGRAM, RELATED AND AUXILIARY PROGRAMS, STATUS, REFERENCES, MACHINE REQUIREMENTS, LANGUAGE, OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED, OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS, NAME AND ESTABLISHMENT OF AUTHORS, MATERIAL, CATEGORIES
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1. NAME OR DESIGNATION OF PROGRAM:  SIMPLE.
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2. COMPUTERS
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Program name Package id Status Status date
SIMPLE NESC9593/01 Tested 28-DEC-1995

Machines used:

Package ID Orig. computer Test computer
NESC9593/01 CDC 7600 Many Computers
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3. DESCRIPTION OF PROGRAM OR FUNCTION

SIMPLE calculates two- dimensional hydrodynamics and heat flow over a rectangular Lagrange  mesh. The code has been provided to give a realistic approximation to a complete computer application, as opposed to the use of inner loops, for timing studies on new machines. SIMPLE was prepared as a
test vehicle, or benchmark problem, for the development of a language to express data-driven computation. In SIMPLE two types of  boundary conditions are available: (1) a pressure may be applied to  any surface and (2) the component of acceleration normal to the surface may be set = 0 along any surface.
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4. METHOD OF SOLUTION

An integral method is used to solve the explicit hydrodynamic calculation, and a coordinate transformation from physical to Lagrange space coupled with a LU decomposition is used to solve the implicit heat flow problem.
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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM:
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6. TYPICAL RUNNING TIME:
NESC9593/01
The test case included in this package has been executed at NEA-DB on a DEC VAX 6000-510 in 210 seconds; and on a PC/80486 (66MHz) in 49 seconds.
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7. UNUSUAL FEATURES OF THE PROGRAM

The description of the test case is coded in the program.
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8. RELATED AND AUXILIARY PROGRAMS:
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9. STATUS
Package ID Status date Status
NESC9593/01 28-DEC-1995 Tested at NEADB
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10. REFERENCES:
NESC9593/01, included references:
- W.P. Crowley, C.P. Hendrickson, and T.E. Rudy:
  The SIMPLE Code
  UCID-17715 (February 1, 1978).
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11. MACHINE REQUIREMENTS:  140,000 (octal) words of memory.
NESC9593/01
The programs has been installed at the NEA-DB on:
(1) DEC VAX 6000-510:
(2) DELL 560/L PC/80486(66MHz) with 16 MB of RAM.
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12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
NESC9593/01 FORTRAN-IV
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13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED:
NESC9593/01
(1) VAX: VMS 6.1 with DEC FORTRAN compiler version 6.2; (2) PC: MSDOS-6.2 with Lahey Extended Memory Compiler F77L-EM/32 version 5.20.
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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS

SIMPLE  calls several LLNL-environment system routines; these routine are not included. Suitable alternatives must be provided for the environment in which SIMPLE is being implemented.
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15. NAME AND ESTABLISHMENT OF AUTHORS

          C. Frey
          Lawrence Livermore National Laboratory
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16. MATERIAL AVAILABLE
NESC9593/01
File name File description Records
NESC9593_01.001 Information file 399
NESC9593_01.002 SIMPLE FORTRAN source file (VAX) 1759
NESC9593_01.003 Command file to compile and link (VAX) 10
NESC9593_01.004 Command file to run SIMPLE (VAX) 2
NESC9593_01.005 SIMPLE FORTRAN source file (PC) 1759
NESC9593_01.006 Batch file to compile and link SIMPLE (PC) 12
NESC9593_01.007 SIMPLE executable (PC) 0
NESC9593_01.008 Lahey compiler run-time error message file 0
NESC9593_01.009 SIMPLE output file (VAX) 2832
NESC9593_01.010 SIMPLE output file (PC) 2824
NESC9593_01.011 SIMPLE output report file (VAX and PC) 9
NESC9593_01.012 DOS file-names 11
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17. CATEGORIES
  • H. Heat Transfer and Fluid Flow

Keywords: heat flow, hydrodynamics, two-dimensional.