1. NAME AND TITLE

GOFRR: Generator of Graphical Output of DOT and ANISN Fluxes and Reaction Rates.

AUXILIARY ROUTINE

INTRIGUE PACKAGE: Maker of Linear, Logarithmic, and Semilogarithmic Graphs.

2. CONTRIBUTOR

Oak Ridge National Laboratory, Oak Ridge, Tennessee.

3. CODING LANGUAGE AND COMPUTER

Fortran IV; IBM 360/370.

4. NATURE OF PROBLEM SOLVED

GOFRR (Graphical Output of Fluxes and Reaction Rates) was designed to calculate and plot reaction rates of fluxes from the discrete ordinates particle transport codes CCC-89/DOT (2-D) and PSR-117/ANISN (1-D). However, GOFRR can be used to plot any one- or two-dimensional array plus 3-D perspective drawings, 2-D reaction rate and spectrum plots and can calculate axes scales and perform symbol plotting.

5. METHOD OF SOLUTION

GOFRR produces a number of different plots from CCC-89/DOT or PSR-117/ANISN flux input. A three-dimensional plot may be drawn in which the X and Y interval midpoint values and the reaction rates are represented by the X, Y, and Z axes, respectively. A two-dimensional plot may be drawn of the reaction rate with either the X interval or Y interval held constant. For a ``row'' plot, the X intervals vs reaction rate is plotted for a single Y value. Similarly, for a column plot, the Y intervals vs reaction rate is plotted for a single X value.

Two-dimensional plots may also be made of the neutron or gamma spectra from an X and Y value in histogram form. A three-dimensional material or zone map may also be produced from an input array.

6. RESTRICTIONS OR LIMITATIONS

GOFRR's array network is flexibly dimensioned for efficient use of storage space. This technique requires that an estimate of the main storage needed for a problem be calculated, the estimate must be specified as the common block size, and the estimate must be passed as a parameter to the control subroutine.

7. TYPICAL RUNNING TIME

The running time for a GOFRR calculation depends largely on the number of intervals used in the problem and also the number of 3-D plots requested. On the IBM 360/91 computer, most problems will run in less than 30 sec CPU time.

8. COMPUTER HARDWARE REQUIREMENTS

GOFRR is operable on the IBM 360/370 computers. 270 K bytes of main memory are required for a block size of 18,000 words. The GOFRR load module has a default common block size of 1,000 words.

A CALCOMP plotter is required.

9. COMPUTER SOFTWARE REQUIREMENTS

A Fortran IV compiler is required.

10. REFERENCES

F. B. Sadler and D. L. Selby, "GOFRR: A Computer Code to Generate Graphical Output of DOT and ANISN Fluxes and Reaction Rates," ORNL/TM-5063 (March 1978).

M. B. Emmett, "INTRIGUE-II-C: An IBM 360 Subroutine Package for Making Linear, Logarithmic, and Semilogarithmic Graphs using Either the CALCOMP Pen-and-Ink or Cathode-Ray-Tube Plotter," ORNL-TM-3947 (October 1972).

11. CONTENTS OF CODE PACKAGE

Included are the referenced document and one (1.2MB) DOS diskette which contains the source code, sample problem input and output, and INTRIGUE package.

12. DATE OF ABSTRACT

March 1984.