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57 lines
2.3 KiB
57 lines
2.3 KiB
C Copyright(C) 1999-2020 National Technology & Engineering Solutions
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C of Sandia, LLC (NTESS). Under the terms of Contract DE-NA0003525 with
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C NTESS, the U.S. Government retains certain rights in this software.
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C
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C See packages/seacas/LICENSE for details
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C=======================================================================
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SUBROUTINE GETVAR (A, IVAR, IELBLK, INSTEP, LENVAR, VAR)
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C=======================================================================
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C --*** GETVAR *** (BLOT) Read variable
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C -- Written by Amy Gilkey - revised 05/17/88
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C --
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C --GETVAR returns the values for the requested variable for the
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C --requested time step. It either reads the values from the sequential
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C --database file and writes them to a direct access scratch file or it
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C --reads the values from the direct access scratch file.
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C --
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C --This routine uses MDFIND to find the following dynamic memory arrays:
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C -- NUMELB - the number of elements per element block
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C -- ISEVOK - the element block variable truth table;
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C -- variable i of block j exists iff ISEVOK(j,i)
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C -- WHOTIM - true iff whole (versus history) time step
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C --
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C --Parameters:
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C -- A - IN - the dynamic memory base array
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C -- IVAR - IN - the variable index
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C -- (0 to initialize random file only)
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C -- IELBLK - IN - the element block number, <=0 for all
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C -- (for element blocks only)
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C -- INSTEP - IN - the time step number
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C -- = +n to read time step n
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C -- = -n to transfer time step n to random file only
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C -- = 0 to transfer all time steps to random file
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C -- LENVAR - IN - the length of VAR
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C -- VAR - OUT - the variable values (indeterminate if INSTEP <= 0)
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C --
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C --Common Variables:
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C -- Uses NDB of /DBASE/
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C -- Uses NUMNP, NUMEL, NELBLK, NVARHI, NVARGL, NVARNP, NVAREL,
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C -- NSTEPS, NSTEPW of /DBNUMS/
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C --
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C --Database is rewound upon the first entry of this routine; upon
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C --exit a flag is set to keep track of the database position; the
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C --database should not be moved between calls to this routine.
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C --
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C --A scratch random file is created and read and written in this routine.
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C --It is connected to unit 90.
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DIMENSION A(*)
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REAL VAR(*)
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IF (IVAR .LE. 0) RETURN
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CALL RNDVAR (A, A, A, IVAR, IELBLK, INSTEP, LENVAR, VAR)
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RETURN
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END
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