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Can anyone help me decoding below code, as in what is the function of time()?

IF (TIME(1).EQ.0.0) THEN
      open (unit = 20, file = "C:\Temp\RANDOM.TXT")
vipesh singh
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  • Not part of the Fortran standard, so either an additional "builtin" (like [this one](https://gcc.gnu.org/onlinedocs/gcc-9.2.0/gfortran/TIME.html) or [this one](https://software.intel.com/en-us/fortran-compiler-developer-guide-and-reference-time-portability-routine)), or a part of your program. In the first case, it depends heavily on the compiler used, in the latter impossible to help you without seeing its implementation. –  Nov 12 '19 at 15:09
  • Welcome, please take the [tour] and read [ask]. You really should try to search a manual of your compiler before asking https://gcc.gnu.org/onlinedocs/gfortran/TIME.html and check if your program (which we cannot se) does not contain some other definition. It is very likely it is defined somewhere in your code. – Vladimir F Героям слава Nov 12 '19 at 15:09
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    Or it could be an element of an array called `time`. We need to see more context (code, compiler output) to be able to answer. – francescalus Nov 12 '19 at 15:31
  • @Jean-ClaudeArbaut this is part of UMAT subroutine of Abaqus where starting lines of codes are given below: *USER SUBROUTINES SUBROUTINE UMAT(STRESS,STATEV,DDSDDE,SSE,SPD,SCD, 1 RPL,DDSDDT,DRPLDE,DRPLDT, 2 STRAN,DSTRAN,TIME,DTIME,TEMP,DTEMP,PREDEF,DPRED,CMNAME, 3 NDI,NSHR,NTENS,NSTATEV,PROPS,NPROPS,COORDS,DROT,PNEWDT, 4 CELENT,DFGRD0,DFGRD1,NOEL,NPT,LAYER,KSPT,KSTEP,KINC) C INCLUDE 'ABA_PARAM.INC' C – vipesh singh Nov 13 '19 at 05:54
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    @vipeshsingh And we were supposed to guess that? –  Nov 13 '19 at 07:00
  • @vipeshsingh You really have to [edit] the question and the the important information there. – Vladimir F Героям слава Nov 13 '19 at 13:27

1 Answers1

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See the Abaqus User Subroutines Reference Guide, in section 1 User Subroutines -> 1.1 Abaqus/Standard subroutines -> 1.1.41 UMAT. TIME is an array with two elements:

TIME(1)

Value of step time at the beginning of the current increment or frequency.

TIME(2)

Value of total time at the beginning of the current increment.