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https://github.com/saitohirga/WSJT-X.git
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4fea8ebd0c
Both decoders now have slightly better performance and faster execution. The rare "duplicate decodes" in JT9 were eliminated. On Windows, at least, calls to f90 routine system_clock() do not provide correct wall time increments. Changed to using secnds() instead. git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@4571 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
120 lines
3.0 KiB
Fortran
120 lines
3.0 KiB
Fortran
subroutine timer(dname,k)
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! Times procedure number n between a call with k=0 (tstart) and with
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! k=1 (tstop). Accumulates sums of these times in array ut (user time).
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! Also traces all calls (for debugging purposes) if limtrace.gt.0
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character*8 dname,name(50),space,ename
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character*16 sname
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logical on(50)
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real ut(50),ut0(50),dut(50)
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integer ncall(50),nlevel(50),nparent(50)
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integer onlevel(0:10)
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common/tracer/ limtrace,lu
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data eps/0.000001/,ntrace/0/
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data level/0/,nmax/0/,space/' '/
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data limtrace/0/,lu/-1/
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save
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if(limtrace.lt.0) go to 999
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if(lu.lt.1) lu=6
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if(k.gt.1) go to 40 !Check for "all done" (k>1)
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onlevel(0)=0
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do n=1,nmax !Check for existing name
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if(name(n).eq.dname) go to 20
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enddo
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nmax=nmax+1 !This is a new one
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n=nmax
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ncall(n)=0
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on(n)=.false.
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ut(n)=eps
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name(n)=dname
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20 if(k.eq.0) then !Get start times (k=0)
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if(on(n)) print*,'Error in timer: ',dname,' already on.'
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level=level+1 !Increment the level
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on(n)=.true.
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! call system_clock(icount,irate)
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! ut0(n)=float(icount)/irate
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! call cpu_time(ut0(n))
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ut0(n)=secnds(0.0)
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ncall(n)=ncall(n)+1
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if(ncall(n).gt.1.and.nlevel(n).ne.level) then
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nlevel(n)=-1
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else
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nlevel(n)=level
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endif
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nparent(n)=onlevel(level-1)
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onlevel(level)=n
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else if(k.eq.1) then !Get stop times and accumulate sums. (k=1)
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if(on(n)) then
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on(n)=.false.
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! call system_clock(icount,irate)
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! ut1=float(icount)/irate
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! call cpu_time(ut1)
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ut1=secnds(0.0)
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ut(n)=ut(n)+ut1-ut0(n)
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endif
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level=level-1
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endif
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ntrace=ntrace+1
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if(ntrace.lt.limtrace) write(lu,1020) ntrace,dname,k,level,nparent(n)
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1020 format(i8,': ',a8,3i5)
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go to 998
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! Write out the timer statistics
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40 write(lu,1040)
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1040 format(/' name time frac dtime', &
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' dfrac calls level parent'/73('-'))
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if(k.gt.100) then
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ndiv=k-100
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do i=1,nmax
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ncall(i)=ncall(i)/ndiv
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ut(i)=ut(i)/ndiv
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enddo
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endif
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total=ut(1)
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sum=0.
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sumf=0.
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do i=1,nmax
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dut(i)=ut(i)
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do j=i,nmax
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if(nparent(j).eq.i) dut(i)=dut(i)-ut(j)
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enddo
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if(dut(i).lt.0.0) dut(i)=0.0
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utf=ut(i)/total
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dutf=dut(i)/total
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sum=sum+dut(i)
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sumf=sumf+dutf
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kk=nlevel(i)
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sname=space(1:kk)//name(i)//space(1:8-kk)
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ename=space
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if(i.ge.2) ename=name(nparent(i))
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write(lu,1060) float(i),sname,ut(i),utf,dut(i),dutf, &
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ncall(i),nlevel(i),ename
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1060 format(f4.0,a16,2(f10.3,f6.2),i7,i5,2x,a8)
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enddo
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write(lu,1070) sum,sumf
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1070 format(/36x,f10.2,f6.2)
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nmax=0
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eps=0.000001
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ntrace=0
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level=0
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space=' '
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onlevel(0)=0
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998 flush(lu)
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999 return
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end subroutine timer
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