NEA-0661 ASNBILD.

1. NAME OR DESIGNATION OF PROGRAM:  ASNBILD.

3. DESCRIPTION OF PROBLEM OR FUNCTION

ASNBILD creates the job control and data input decks immediately ready for use in the code ANISN.
Its use avoids much of the time-consuming input creation necessary when running ANISN.

4. METHOD OF SOLUTION

ASNBILD performs two functions:

a. It searches the input deck to determine the nuclides required  for the job, and creates CDC job control cards for ANISN as     required.

b. It creates the two data decks normally typed by the user in  fixed format. (The first data deck contains the title, 15$ and  16* arrays and the 14* card, and the second data deck contains  a T, the 1*, 3*, 4*, 6*, 7*, 8$, 9$, 10$, 11$ and 12* arrays.)
The cross section file is created by the ANISN job control deck, choosing nuclides by using the COPYBR command, thus avoiding loading the whole of the data library for every run.

ASNBILD also creates the file JANISN (CDC job control for ANISN) which will contain the relevant COPYBR commands, and nuclides will be automatically chosen ready for the ANISN job.

Using ASNBILD allows commands (which may appear anywhere in the in-  put deck) such as:
-  STEEL FROM 10.0 TO 15.0 STEP 1.0
-  STEEL 10.0 15.0 1.0

Mixing of elements may be defined by weight, volume or molecule.
Materials as well as elements may be mixed.

ASNBLD optimises the mixing table length by overwriting old cross section sets when possible.

5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

The present version  of the code uses the DLC23E data set which contains 29 elements and  40 energy groups. Certain arrays have these fixed dimensions but may be easily re-dimensioned.

6. TYPICAL RUNNING TIME:  9 seconds on CDC 7600 for the test case.

7. UNUSUAL FEATURES OF THE PROGRAM:

8. RELATED AND AUXILIARY PROGRAMS

ASNBILD uses the Electrowatt FREEF  suite of routines written in Fortran, which may be loaded with computer codes to enable a free format reading capability. FREEF has the capability of reading alphanumeric data in the form of full English sentences, and of reading mixed integer and real numbers.
It also allows "implied do-loops" in the data.

ANISN-ORNL

10. REFERENCES

- W.W. Engle Jr.:
  "ANISN, A One Dimensional Discrete Ordinates Transport Code with
  Anisotropic Scattering"
  K-1693 (1967).

- S.D. Lympany:
  Electrowatt Engineering Services Ltd.
  ASNBILD and FREEF User Manuals available (July 1980).

11. MACHINE REQUIREMENTS

ASNBILD creates four output files, Nos.
1 and 2 for the ANISN input data, 7 for the job control language, and 6 for error listing and details of the mixing table generation.
Main storage requirement on CDC 7600 is 115,000 octal words (SCM).

13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED

The program is written in Fortran on the LUCS APEX System.
SCOPE 2.1 (CDC 7600).

14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS

A short User Subroutine must be compiled and loaded with ASNBILD to  define BLANK COMMON requirements.

15. NAME AND ESTABLISHMENT OF AUTHOR

          S. D. Lympany
          Electrowatt Engineering Services (UK) Ltd.
          16 Carfax
          Horsham
          West Sussex RH12 1UP
          England

File name	File description	Records
NEA0661_01.002	ASNBILD INFORMATION	21
NEA0661_01.003	ASNBILD SOURCE CARD IMAGES (FORTRAN-4)	2794
NEA0661_01.004	ASNBILD SOURCE UPDATE (FORTRAN-4)	2388
NEA0661_01.005	USER SUBROUTINE (FORTRAN-4)	13
NEA0661_01.006	ASNBILD INPUT FOR SAMPLE CASE	32
NEA0661_01.007	ASNBILD JCL FOR SAMPLE CASE	28
NEA0661_01.008	ANISN1 (TAPE1) DATA	15
NEA0661_01.009	ANISN2 (TAPE2) DATA	86
NEA0661_01.010	JANISN (TAPE7) ANISN JCL	35
NEA0661_01.011	ASNBILD OUTPUT OF SAMPLE CASE	263