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USCD1151 BWIP-RANDOM-SAMPLING

BWIP-RANDOM-SAMPLING, Random Sample Generation for Nuclear Waste Disposal

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:  BWIP-RANDOM-SAMPLING.
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2. COMPUTERS
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Program name Package id Status Status date
BWIP-RANDOM-SAMPLING USCD1151/01 Tested 22-MAR-1989

Machines used:

Package ID Orig. computer Test computer
USCD1151/01 Many Computers DEC VAX 11/780
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3. DESCRIPTION OF PROGRAM OR FUNCTION

Random samples for different distribution types are generated. Distribution types as required for performance assessment modeling of geologic nuclear waste disposal are provided. These are:
- Uniform
- Loguniform (base 10 or natural)
- Normal
- Lognormal (base 10 or natural)
- Exponential
- Bernoulli
- User defined continuous distribution
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4. METHOD OF SOLUTION

A linear congruential generator is used for uniform random numbers. A set of functions is used to transform the  uniform distribution to the other distributions. Stratified, rather  than random, sampling can be chosen. Truncated limits can be specified on many distributions, whose usual definition has an infinite support.
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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

Generation of correlated random variables is not included.
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6. TYPICAL RUNNING TIME:
USCD1151/01
The test case included in this package, which samples from 15 different distributions/methods for 2500 values each, has been executed by NEA-DB on a VAX-11/780 computer in 20 seconds of CPU time
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7. UNUSUAL FEATURES OF THE PROGRAM:
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8. RELATED AND AUXILIARY PROGRAMS:
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9. STATUS
Package ID Status date Status
USCD1151/01 22-MAR-1989 Tested at NEADB
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10. REFERENCES:
USCD1151/01, included references:
- User's Guide.
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11. MACHINE REQUIREMENTS:
USCD1151/01
A peak working set size of 549 pages (276K bytes) is required for running the test case on a VAX-11/780.
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12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
USCD1151/01 FORTRAN-77
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13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED:
USCD1151/01
VAX/VMS.
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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS:
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15. NAME AND ESTABLISHMENT OF AUTHORS

         Mr. B. Sagar
         Basalt Waste Isolation Project
         Rockwell Hanford Operations
         P.O. Box 800
         Richland, WA 99352, USA
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16. MATERIAL AVAILABLE
USCD1151/01
File name File description Records
USCD1151_01.001 Information File 74
USCD1151_01.002 BWIP random sampling routines 800
USCD1151_01.003 TEST program for random sampling routines 374
USCD1151_01.004 Common (BWIP_COMMON.FOR) for test run 8
USCD1151_01.005 Original Output of TEST run (IBM-PC) 510
USCD1151_01.006 Output of TEST run on VAX 510
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17. CATEGORIES
  • P. General Mathematical and Computing System Routines
  • R. Environmental and Earth Sciences

Keywords: distribution functions, radioactive waste storage, random number generators.