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22 lines
377 B
Fortran
22 lines
377 B
Fortran
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subroutine sec0(n,t)
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! Simple execution timer.
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! call sec0(0,t)
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! ... statements to be timed ...
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! call sec0(1,t)
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! print*,'Execution time:',t
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integer*8 count0,count1,clkfreq
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save count0
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call system_clock(count1,clkfreq)
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if(n.eq.0) then
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count0=count1
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return
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else
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t=float(count1-count0)/float(clkfreq)
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endif
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return
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end subroutine sec0
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