last modified: 15-FEB-1983 | catalog | categories | new | search |

CCC-0204 SWANLAKE.

SWANLAKE, Cross-Sections Sensitivity Analysis for 1-D Discrete Ordinate Calculation

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1. NAME OR DESIGNATION OF PROGRAM:  SWANLAKE.
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2. COMPUTERS
To submit a request, click below on the link of the version you wish to order. Only liaison officers are authorised to submit online requests. Rules for requesters are available here.
Program name Package id Status Status date
SWANLAKE CCC-0204/03 Tested 15-FEB-1983

Machines used:

Package ID Orig. computer Test computer
CCC-0204/03 IBM 3081 IBM 3081
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3. NATURE OF PHYSICAL PROBLEM SOLVED

Determination of the sensitivity  of a calculated quantity or result to microscopic cross section data utilized in the calculation.
CCC-0204/03
The new version of SWANLAKE contains the following changes over the original version:
1. Fission contributions are considered with an option for a mini or maxi print edit of fission sensitivities.
2. The Shortlist feature was implemented for most I/O transfers which cut execution time considerably.
3. Plotting features were eliminated and replaced by a (punch/write) option.
4. For coupled neutron-gamma-ray problems, an output edit is printed which gives the group and zonewise contributions to the total response due to gamma-ray production.
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4. METHOD OF SOLUTION

A particular sensitivity function, which represents an application of earlier perturbation approaches, is determined for the cross sections which were utilized in the discrete ordinates calculations.
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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

The discrete ordinates calculations to be analyzed by this version of SWANLAKE must be time-independent and one-dimensional. The sensitivity function only allows for energy downscatter, does not include the effects of fission cross sections, and cannot evaluate the sensitivity of the calculated quantity or response to the response function itself.
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6. TYPICAL RUNNING TIME

The infinite air sample problem included in the code package required 59 seconds for the ANISN forward calculation, 78 seconds for the ANISN adjoint calculation, and 16 seconds for the SWANLAKE calculation. Running time for both ANISN and SWANLAKE is highly problem dependent and is greatly affected by parameters such as the number of energy groups and the number of spatial intervals utilized.
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7. UNUSUAL FEATURES: UNUSUAL FEATURES OF THE PROGRAM
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8. RELATED AND AUXILIARY PROGRAMS

ANISN - input tape generator.
INTRIGUE-IIL - CALCOMP plotting package.
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9. STATUS
Package ID Status date Status
CCC-0204/03 15-FEB-1983 Tested at NEADB
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10. REFERENCES
CCC-0204/03, included references:
- D.E. Bartine, F.R. Mynatt and E.M. Oblow:
  SWANLAKE, A Computer Code Utilizing ANISN Radiation Transport
  Calculations for Cross Section Sensitivity Analysis.
  ORNL-TM-3809  (May 1973).
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11. MACHINE REQUIREMENTS

Maximum core requirements for the sample problems discussed in the code manual is 848k bytes, minimum size is 290k bytes.
In the new version (CCC-0204/03), external storage devices are used  more extensively resulting in a factor of 3 reduction in the re- quired size of COMMON for most problems considered thus far. The corresponding increase in I/O apprears to be onlu about 30 % :
Auxiliary storage requirements, in addition to standard input and output devices, are 5 scratch devices and 2 storage devices. If cross sections are not read from cards, an additional tape or disk will be required.
the package is to be utilized, another tape is required.
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12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
CCC-0204/03 FORTRAN-IV
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13. OPERATING SYSTEM OR MONITOR UNDER WHICH PROGRAM IS EXECUTED

The sample problem was run by NEA-DB on IBM 3081 using the system OS370/033 VS2 03.8G.
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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS

ANY OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS
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15. NAME AND ESTABLISHMENT OF AUTHOR: Oak Ridge National Laboratory
Oak Ridge, Tennessee, U.S.A.
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16. MATERIAL AVAILABLE
CCC-0204/03
File name File description Records
CCC0204_03.003 SWANLAKE INFORMATION FILE 62
CCC0204_03.004 SWANLAKE SOURCE PROGRAM (FORTRAN-4) 1754
CCC0204_03.005 SWANLAKE OVERLAY CONTROL CARDS 5
CCC0204_03.006 SWANLAKE JCL TO RUN TEST CASE 107
CCC0204_03.007 ANISN INPUT FOR FORWARD CASE 268
CCC0204_03.008 ANISN INPUT FOR ADJOINT CASE 271
CCC0204_03.009 SWANLAKE INPUT FOR TEST CASE 259
CCC0204_03.010 ANISN PRINTED OUTPUT OF FORWARD CASE 1979
CCC0204_03.011 ANISN PRINTED OUTPUT OF ADJOINT CASE 1986
CCC0204_03.012 SWANLAKE OUTPUT OF TEST CASE 1360
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17. CATEGORIES
  • B. Spectrum Calculations, Generation of Group Constants and Cell Problems
  • C. Static Design Studies

Keywords: cross sections, one-dimensional, sensitivity.