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subroutine KDRCPU(cpusec)
!
!-----------------------------------------------------------------------
!
!Purpose:
! system clock support.
!
!Copyright:
! Copyright (C) 2002 Ecole Polytechnique de Montreal
! This library is free software; you can redistribute it and/or
! modify it under the terms of the GNU Lesser General Public
! License as published by the Free Software Foundation; either
! version 2.1 of the License, or (at your option) any later version.
!
!Author(s): A. Hebert
!
!Parameters: output
! cpusec : number of seconds elapsed since the first call to KDRCPU.
!
!-----------------------------------------------------------------------
!
real :: cpusec
double precision :: dtloc
integer,save :: isave=0
double precision,save :: dtloc0
!
if(isave==0) then
call CLETIM(dtloc0)
isave=1
endif
call CLETIM(dtloc)
cpusec=real(dtloc-dtloc0)
return
end subroutine KDRCPU
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