secondr(3F)

NAME
     SECONDR - Returns elapsed wall-clock time in seconds

SYNOPSIS
     All systems:

     REAL (KIND=8) SECONDR
     time=SECONDR( )

     UNICOS systems:

     CALL SECONDR(time)

IMPLEMENTATION
     UNICOS, UNICOS/mk, and IRIX systems

DESCRIPTION
     On IRIX systems, this routine is in libffio.so which is linked by
     default when compiling programs with the MIPSpro 7 Fortran 90 compiler
     or when compiling programs with the -craylibs option to the MIPSpro
     F77 compiler.

     SECONDR can be called several times during the execution of a program
     to determine the amount of elapsed wall-clock time.

     time is the real-time clock values in floating-point seconds.  If the
     value of the real-time clock exceeds 48 bits, some accuracy may be
     lost during the conversion to float.  The argument must be of type
     real with KIND=8.

     On UNICOS/mk systems, the real-time clocks on processing elements are
     not synchronized with each other.  Therefore, a SECONDR() value should
     not be compared to a previous SECONDR() taken on a different
     processing element.

EXAMPLES
     This example calculates the elapsed wall-clock time from the first
     call to SECONDR until the second call to SECONDR.

          BEFORE = SECONDR( )
          CALL DOWORK ( )
          AFTER = SECONDR( )
          WALTIM = AFTER - BEFORE

SEE ALSO
     RTC(3I), SECOND(3F), TIMEF(3F), TSECND(3F)

     Application Programmer's Library Reference Manual for the printed
     version of this man page.