CCC-0514 ANISN/PC.

ANISN/PC, MultiGroup 1-D Discrete Ordinates Transport with Anisotropic Scattering

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: ANISN/PC.

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2. COMPUTERS

To submit a request, click below on the link of the version you wish to order. Rules for end-users are available here.

Program name	Package id	Status	Status date
ANISN/PC	CCC-0514/03	Tested	26-FEB-1993

Machines used:

Package ID	Orig. computer	Test computer
CCC-0514/03	IBM PC	PC-80486

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3. DESCRIPTION OF PROGRAM OR FUNCTION

ANISN/PC solves the one- dimensional Boltzmann equation for neutrons or gamma rays in slab sphere, or cylinder geometry. The source may be fixed, fission, or a subcritical combination of the two. Criticality search may be performed on any one of several parameters. Cross sections may be weighted using the energy dependent flux generated in solving the transport equation.

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4. METHOD OF SOLUTION

The solution technique is an advanced discrete ordinates method which represents a generalization of the method originated by G.C. Wick and greatly developed and extended to curvo- linear geometry by B. G. Carlson at Los Alamos Scientific Laboratory.
ANISN was designed to solve deep-penetration problems in which angle-dependent spectra are calculated in detail. The principal feature that makes it suitable for such problems is the use of a programming technique with optional data-storage configurations which allows execution of small, intermediate, and extremely large problems. It also includes a technique for handling general anisotropic scattering. For ANISN/PC the standard souce iteration method, accelerated by up to two single scale factors, is used for outer iterations. Inner iterations are accelerated either by a stabilized variable-mesh rebalancing scheme or by a linear diffusion synthetic scheme. A noniterative matrix inversion technique based on a reflection principle is used for diffusion theory inner iterations.

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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

Problem size is limited by machine size. The energy group limit is 25 for the PC version.

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6. TYPICAL RUNNING TIME

Run times range from a few minutes to several hours hours, depending on the problem. In general, a 1.5 to 2 orders of magnitude increase in run time is seen between ANISN/PC on an IBM PC XT and ANISN-W on a CDC CYBER 176.

CCC-0514/03

The three test cases included in this package have been run by NEA-DB on an 80384-compatible desktop computer in a total CPU time of 16 seconds,

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7. UNUSUAL FEATURES OF THE PROGRAM:

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8. RELATED AND AUXILIARY PROGRAMS

ANISN/PC follows a series of developmental efforts over a period of years (see CCC-0254). It is a modification of ANISN-W (CCC-0255), the Westinghouse version which was based on the Oak Ridge National Laboratory work.
APE:        Interactively generates an input file for ANISN/PC.
LMOD: Selects materials from a master ASCII CCCC ISOTXS file             and places them on a CCCC file for input to ANISN/PC.
ANTOPC: Converts ANISN-formatted cross sections to CCCC ISOTXS             format for use with ANISN/PC.
ANTOAPE: Converts ANISN-formatted cross sections to CCCC ISOTXS             for APE (does not use repeat option).
FLUNGP: Twenty-one group photon cross section master library in             CCCC ISOTXS format derived from DLC-0086/FLUNG.

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9. STATUS

Package ID	Status date	Status
CCC-0514/03	26-FEB-1993	Tested at NEADB

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10. REFERENCES

- W.W. Engle, Jr.:
  "A User's Manual for ANISN: A One-Dimensional Discrete Ordinates
   Transport Code with Anisotropic Scattering"
   K-1693 (1967)
- R.G. Soltesz and R.K. Disney:
  "Nuclear Rocket Shielding Methods, Modification, Updating, and
   Input Data Preparation, Vol. 4, One-Dimensional Discrete
   Ordinates Transport Technique"
   WANL-PR-(LL)-034 (August 1970)
- R.G. Soltesz et al.:
  "ANISN-W"
   WANL-TME-2778 (February 1971)
- R.G. Soltesz:
  "Revised WANL ANISN Program User's Manual"
   WANL-TM1-1967 (Supplement 1969)
- F. Wasastjerna:
  Implementation of ANISN on the HP/UNIX System
  VTT Technical Report RFD-19/92 (August 1992)

CCC-0514/03, included references:

- D. Kent Parsons:
  "Refinement for Spherical Geometry Problems with Low Order
   Quadrature"
  Letter from LANL (June 6, 1990).
- D. Kent Parsons:
  "ANISN/PC Manual"
  EGG-2500 (December 1988).
- Enrico Sartori:
  Note to all recipients of various versions of ANISN
  NDB/93/0931 (27 August, 1993)

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11. MACHINE REQUIREMENTS

The minimum hardware requirements for ANISN/PC are: an IBM PC or compatible, the 8087 math processor chip, a 10MB fixed disk, 640K Random Access Memory.

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12. PROGRAMMING LANGUAGE(S) USED

Package ID	Computer language
CCC-0514/03	FORTRAN-77

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13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED

The Ryan McFarland IBM Professional FORTRAN compiler Version 1.0 was used to compile the programs under PC/DOS 3.1. The PLINK86-Plus Version 1.48 overlay linker was used to create an executable ANISN file of approximately 640K bytes. The PC/DOS Version 3.1 linker was used to link the APE32 and LMOD programs. The executable files are included in the package. The Lahey FORTRAN 77 compiler was used to create the executable files for the ANTOPC and ANTOAPE utility programs.

CCC-0514/03

Operating System: MSDOS v 5.00;
Compiler: IBM Professional FORTRAN Version 1.00;
Linkers: PLINK86 for RM/FORTRAN V1.52.RM (for ANISN);
IBM Personal Computer Linker V2.30 (for utilities).

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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS:

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15. NAME AND ESTABLISHMENT OF AUTHORS

EG$G Idaho, Inc.
Idaho Falls, Idaho, USA.

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16. MATERIAL AVAILABLE

CCC-0514/03

File name	File description	Records
CCC0514_03.001	Information file	150
CCC0514_03.002	READ.ME General information	207
CCC0514_03.003	CL.BAT Batch file to compile & link	39
CCC0514_03.004	RUN.BAT Batch file to execute	19
CCC0514_03.005	ANISN1.FOR ANISN source	388
CCC0514_03.006	ANISN2.FOR ANISN source	2363
CCC0514_03.007	ANISN3.FOR ANISN source	2541
CCC0514_03.008	ANISN4.FOR ANISN source	1869
CCC0514_03.009	AHP1.F ANISN source (UNIX WS)	409
CCC0514_03.010	AHP2.F ANISN source (UNIX WS)	2335
CCC0514_03.011	AHP3.F ANISN source (UNIX WS)	2530
CCC0514_03.012	AHP4.F ANISN source (UNIX WS)	1868
CCC0514_03.013	ANISN.SP1 Input for sample problem 1	62
CCC0514_03.014	ANISN.SP2 Input for sample problem 2	41
CCC0514_03.015	ANISN.SP3 Input for sample problem 3	51
CCC0514_03.016	ISOTXS.SP2 Library for sample problem 2	34
CCC0514_03.017	ISOTXS.SP3 Library for sample problem 3	197
CCC0514_03.018	ANISN1.OUT Output for sample problem 1	489
CCC0514_03.019	ANISN2.OUT Output for sample problem 2	495
CCC0514_03.020	ANISN3.OUT Output for sample problem 3	667
CCC0514_03.021	LMOD.FOR X-section library editor	285
CCC0514_03.022	FLUNGP.LIB 21-g photon library	4701
CCC0514_03.023	APE1.FOR Input generator source	1506
CCC0514_03.024	APE2.FOR Input generator source	1415
CCC0514_03.025	APE3.FOR Input generator source	1514
CCC0514_03.026	APE4.FOR Input generator source	1789
CCC0514_03.027	ANTOPC.FOR Format converter	70
CCC0514_03.028	ANTOAPE.FOR Format converter	68
CCC0514_03.029	ANISN.EXE ANISN/PC executable file	0
CCC0514_03.030	LMOD.EXE LMOD executable file	0
CCC0514_03.031	APE32.EXE APE32 executable file	0
CCC0514_03.032	ANTOPC.EXE ANTOPC executable file	0
CCC0514_03.033	ANTOAPE.EXE ANTOAPE executable file	0
CCC0514_03.034	DOS file-names	33