last modified: 24-JUN-1991 | catalog | categories | new | search |

PSR-0275 ORMONTE.

ORMONTE, Uncertainty Analysis for User-Developed System Models

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1. NAME OR DESIGNATION OF PROGRAM:  ORMONTE.
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2. COMPUTERS
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Program name Package id Status Status date
ORMONTE PSR-0275/01 Tested 24-JUN-1991

Machines used:

Package ID Orig. computer Test computer
PSR-0275/01 IBM PC IBM PC
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3. DESCRIPTION OF PROGRAM OR FUNCTION

ORMONTE is a generic multivariable uncertainty analysis driver which can be linked to any FORTRAN model supplied by the user. The user tells ORMONTE which variables in his model are uncertain and describes the associated probability distributions. The user also tells ORMONTE which outputs from his model are of interest and for which uncertainty profiles are desired. Given the uncertainties in the inputs, ORMONTE samples  the user-defined input distributions and "drives" or runs the users  model enough times such that a probability histogram or profile is constructed for the user-defined outputs of interest. ORMONTE can also perform sequential one-variable-at-a-time sensitivity studies and elasticity analysis. The user-supplied model is not restricted to a shielding model. Any FORTRAN model where uncertain outputs can  be represented as functions of uncertain, independent inputs can be  used. The ORMONTE package includes a set of Probability Data Analysis (PDA) routines for converting raw probability data into probability distribution format suitable for input to ORMONTE.
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4. METHOD OF SOLUTION

ORMONTE uses the Monte Carlo technique to sample user-defined input probability distributions.
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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM:  None noted.
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6. TYPICAL RUNNING TIME

The SVSS sample problem took about 3.5 minutes; the MVSS option took about 9 minutes; and the ELAS option took about 40 seconds. These runs were made on an IBM PC/XT with a math co-processor. The PDA options were not tested by RSIC.
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7. UNUSUAL FEATURES OF THE PROGRAM:
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8. RELATED AND AUXILIARY PROGRAMS:
PSR-0275/01
INTOHIST            Raw to comulative distribution data conversion
REGIN               Z-value for given probability
REGOUT              Probability for given z-value
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9. STATUS
Package ID Status date Status
PSR-0275/01 24-JUN-1991 Tested at NEADB
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10. REFERENCES:
PSR-0275/01, included references:
- K.A. Williams and C.R. Hudson II:
  ORMONTE - An Uncertainty Analysis Code for Use with User-Developed
  Systems Models on Mainframe or Personnal Computers
  ORNL-TM-10714 (May 1989).
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11. MACHINE REQUIREMENTS

ORMONTE runs on IBM PC and compatibles with a math co-processor. With minor modifications, such as FORTRAN OPEN statements, it has run on VAX, CRAY and IBM mainframes.
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12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
PSR-0275/01 FORTRAN+ASSEMBLER
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13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED

The code was written in FORTRAN 77 and was tested under PC-DOS (IBM PC). Executable files, produced by the RM FORTRAN Version 2.42 compiler,  are included. For the PDA options, LOTUS 1-2-3 software is required.
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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS:
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15. NAME AND ESTABLISHMENT OF AUTHORS

Developed by:
                Oak Ridge National Laboratory
                Oak Ridge, Tennessee, U. S. A.
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16. MATERIAL AVAILABLE
PSR-0275/01
File name File description Records
PSR0275_01.001 Information file 161
PSR0275_01.002 Batch file to compile ORMONTE 14
PSR0275_01.003 Batch file to Link ORMONTE 5
PSR0275_01.004 Batch file to run ORMONTE 3
PSR0275_01.005 File used by LINK.BAT 3
PSR0275_01.006 Source File 142
PSR0275_01.007 Source File 135
PSR0275_01.008 Source File 44
PSR0275_01.009 Source File 14
PSR0275_01.010 Source File 296
PSR0275_01.011 Source File 55
PSR0275_01.012 Source File 96
PSR0275_01.013 Source File 38
PSR0275_01.014 Source File 241
PSR0275_01.015 Source File 81
PSR0275_01.016 Source File 1213
PSR0275_01.017 Assembler random number generator 93
PSR0275_01.018 Input file for the sample runs for ORMONTE 16
PSR0275_01.019 Input file for the sample runs for ORMONTE 20
PSR0275_01.020 Input file for the sample runs for ORMONTE 3
PSR0275_01.021 Input file for the sample runs for ORMONTE 56
PSR0275_01.022 Input file for the sample runs for ORMONTE 5
PSR0275_01.023 Input file for the sample runs for ORMONTE 7
PSR0275_01.024 ORMONTE output MVSS option 819
PSR0275_01.025 ORMONTE output ELAS option 1526
PSR0275_01.026 ORMONTE output SVSS option 2630
PSR0275_01.027 prog to convert parameters into distr. data 219
PSR0275_01.028 Sample input to INTOHIST 2000
PSR0275_01.029 INTOHIST Sample output 39
PSR0275_01.030 Sample output histogram param. from INTOHIST 5
PSR0275_01.031 Output from INTOHIST using LMRPLOT.DAT input 31
PSR0275_01.032 Sample input to INTOHIST 78
PSR0275_01.033 Source for probability data anlysis 29
PSR0275_01.034 Sample REGIN output 11
PSR0275_01.035 Source to provide probability data analysis 66
PSR0275_01.036 Spreadsheet file for prob data analysis 29
PSR0275_01.037 Standard deviation input to REGOUT 2
PSR0275_01.038 indicator file used by REGIN and REGOUT 1
PSR0275_01.039 Sum-of-squares average error of probability 1
PSR0275_01.040 User supplied input data 11
PSR0275_01.041 Standard normal data file 81
PSR0275_01.042 X-axis values for given mean and sigma 81
PSR0275_01.043 REGOUT probability output 11
PSR0275_01.044 DOS file-names 42
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17. CATEGORIES
  • J. Gamma Heating and Shield Design
  • P. General Mathematical and Computing System Routines

Keywords: data uncertainties, probability, sensitivity analysis, shielding.