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NEA-1400 GTM-1.

GTM-1, Radionuclide Transport Through Ground Water

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:  GTM-1.
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2. COMPUTERS
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Program name Package id Status Status date
GTM-1 NEA-1400/01 Tested 27-MAR-1996

Machines used:

Package ID Orig. computer Test computer
NEA-1400/01 DEC VAX series DEC VAX 6000
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3. DESCRIPTION OF PROGRAM OR FUNCTION

GTM-1 was developed for the assessment of radionuclide transport by the ground-water through geologic formations whose properties can change along the pathway. The program was developed for specific use within Probabilistic System Assessment (PSA) Monte Carlo codes.
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4. METHOD OF SOLUTION

GTM-1 solves the transport equation by the finite differences method (Crank-Nicolson scheme).
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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM:
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6. TYPICAL RUNNING TIME:
NEA-1400/01
The sample problem was executed at the NEA/DB in a DEC  VAX 6000/510 under OpenVMS 6.1, in 12.9 CPU seconds.
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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
NEA-1400/01 27-MAR-1996 Tested at NEADB
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10. REFERENCES:
NEA-1400/01, included references:
- P. Prado Herrero:
  User's Manual for the G.T.M.-1 Computer Code
  EUR 13925 EN , Preprint (1991).
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11. MACHINE REQUIREMENTS:
NEA-1400/01
The peak working set size to run the sample problem at  the NEA/DB on a VAX 6000/510 computer under OpenVMS 6.1 is 546 KB.
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12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
NEA-1400/01 FORTRAN-77
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13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED:
NEA-1400/01
The program GTM-1 was installed and executed at the NEA/DB on a DEC VAX 6000/510 under OpenVMS 6.1 . The source code was compiled using the DEC FORTRAN-77 compiler
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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS

The code references the FUNCTION DERFC which computes the complementary error function in DOUBLE PRECISION and is not in the standard mathematical libraries. The code also references the UERTST subroutine which generates error messages and is called from ISML subroutines.
NEA-1400/01
Altough function DERFC can be found in the ISML library (to be used if the user has it installed in his system), a subset of subroutines offering the same functionality and extracted from the SLATEC library is provided with this package.
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15. NAME AND ESTABLISHMENT OF AUTHORS: , P. Prado Herrero, CIEMAT, Madrid, Spain
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16. MATERIAL AVAILABLE
NEA-1400/01
File name File description Records
NEA1400_01.001 Information file of package GTM-1 150
NEA1400_01.002 Source code file of code GTM-1 (Version 2A) 2615
NEA1400_01.003 Source code of extracted SLATEC routines 1936
NEA1400_01.004 INCLUDE file - COMMON of "biosphere" vars. 21
NEA1400_01.005 INCLUDE file - COMMON of "far_field" vars. 27
NEA1400_01.006 INCLUDE file - COMMON of "near_filed" vars. 21
NEA1400_01.007 INCLUDE file - COMMON of "nuclide" variables 19
NEA1400_01.008 INCLUDE file - COMMON of "nuclide names" 17
NEA1400_01.009 INCLUDE file - COMMON of "output variables" 29
NEA1400_01.010 INCLUDE file - COMMON of "output variables" 26
NEA1400_01.011 INCLUDE file - COMMON of array dimensions 28
NEA1400_01.012 VMS DCL command file to create the executabl 37
NEA1400_01.013 Sample input file -PSACOIN Level-E benchmark 135
NEA1400_01.014 Sample output file-PSACOIN Level-E benchmark 1753
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17. CATEGORIES
  • R. Environmental and Earth Sciences

Keywords: ground water, radioactivity transport.