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WSJT-X
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Add subroutine clockit() and use it for profiling ft4_decode().

This commit is contained in:
Joe Taylor 2019-02-01 10:47:47 -05:00
parent 9c2700128c
commit 98d665c678
3 changed files with 128 additions and 1 deletions
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1
CMakeLists.txt
View File

@ -394,6 +394,7 @@ set (wsjt_FSRCS
lib/chkhist.f90
lib/chkmsg.f90
lib/chkss2.f90
lib/ft4/clockit.f90
lib/ft8/compress.f90
lib/coord.f90
lib/db.f90

104
lib/ft4/clockit.f90 Normal file
View File

@ -0,0 +1,104 @@
subroutine clockit(dname,k)
! Times procedure number n between a call with k=0 (tstart) and with
! k=1 (tstop). Accumulates sums of these times in array ut (user time).
! Also traces all calls (for debugging purposes) if limtrace.gt.0
character*8 dname,name(50),space,ename
character*16 sname
logical first,on(50)
real ut(50),ut0(50),dut(50),tt(2)
integer ncall(50),nlevel(50),nparent(50)
integer onlevel(0:10)
! common/tracer/ limtrace,lu,ntimer
data first/.true./,eps/0.000001/,ntrace/0/
data level/0/,nmax/0/,space/' '/
data limtrace/0/,lu/29/,ntimer/1/
save
if(ntimer.eq.0) return
if(lu.lt.1) lu=6
if(k.gt.1) go to 40 !Check for "all done" (k>1)
onlevel(0)=0
do n=1,nmax !Check for existing name
if(name(n).eq.dname) go to 20
enddo
nmax=nmax+1 !This is a new one
n=nmax
ncall(n)=0
on(n)=.false.
ut(n)=eps
name(n)=dname
20 if(k.eq.0) then !Get start times (k=0)
if(on(n)) print*,'Error in timer: ',dname,' already on.'
level=level+1 !Increment the level
on(n)=.true.
ut0(n)=etime(tt)
ncall(n)=ncall(n)+1
if(ncall(n).gt.1.and.nlevel(n).ne.level) then
nlevel(n)=-1
else
nlevel(n)=level
endif
nparent(n)=onlevel(level-1)
onlevel(level)=n
else if(k.eq.1) then !Get stop times and accumulate sums. (k=1)
if(on(n)) then
on(n)=.false.
ut1=etime(tt)
ut(n)=ut(n)+ut1-ut0(n)
endif
level=level-1
endif
ntrace=ntrace+1
if(ntrace.lt.limtrace) write(lu,1020) ntrace,dname,k,level,nparent(n)
1020 format(i5,': ',a8,3i5)
return
! Write out the timer statistics
40 open(lu,file='clockit.out',status='unknown')
write(lu,1040)
1040 format(/' name time frac dtime', &
' dfrac calls level parent'/73('-'))
if(k.gt.100) then
ndiv=k-100
do i=1,nmax
ncall(i)=ncall(i)/ndiv
ut(i)=ut(i)/ndiv
enddo
endif
total=ut(1)
sum=0.
sumf=0.
do i=1,nmax
dut(i)=ut(i)
do j=i,nmax
if(nparent(j).eq.i) dut(i)=dut(i)-ut(j)
enddo
utf=ut(i)/total
dutf=dut(i)/total
sum=sum+dut(i)
sumf=sumf+dutf
kk=nlevel(i)
sname=space(1:kk)//name(i)//space(1:8-kk)
ename=space
if(i.ge.2) ename=name(nparent(i))
write(lu,1060) float(i),sname,ut(i),utf,dut(i),dutf, &
ncall(i),nlevel(i),ename
1060 format(f4.0,a16,2(f10.2,f6.2),i7,i5,2x,a8)
enddo
write(lu,1070) sum,sumf
1070 format(/36x,f10.2,f6.2)
close(lu)
return
end subroutine clockit

24
lib/ft4/ft4_decode.f90
View File

@ -44,6 +44,7 @@ subroutine ft4_decode(cdatetime0,tbuf,nfa,nfb,nfqso,iwave,ndecodes,mycall, &
data first/.true./
save one,first,nrxx,linex
call clockit('ft4_deco',0)
hhmmss=cdatetime0(8:13)
fs=12000.0/NDOWN !Sample rate after downsampling
dt=1/fs !Sample interval after downsample (s)
@ -72,15 +73,20 @@ subroutine ft4_decode(cdatetime0,tbuf,nfa,nfb,nfqso,iwave,ndecodes,mycall, &
fa=nfa
fb=nfb
call clockit('getcand4',0)
call getcandidates4(iwave,fa,fb,syncmin,nfqso,maxcand,savg,candidate, &
ncand,sbase)
call clockit('getcand4',1)
ndecodes=0
do icand=1,ncand
f0=candidate(1,icand)
xsnr=10*log10(candidate(3,icand))-18.0
if( f0.le.375.0 .or. f0.ge.(5000.0-375.0) ) cycle
call ft4_downsample(iwave,f0,cd2) ! downsample from 512 Sa/Symbol to 32 Sa/Symbol
call clockit('ft4_down',0)
call ft4_downsample(iwave,f0,cd2) !Downsample from 512 to 32 Sa/Symbol
call clockit('ft4_down',1)
sum2=sum(cd2*conjg(cd2))/(real(NMAX)/real(NDOWN))
if(sum2.gt.0.0) cd2=cd2/sqrt(sum2)
! Sample rate is now 12000/16 = 750 samples/second
@ -107,7 +113,11 @@ subroutine ft4_decode(cdatetime0,tbuf,nfa,nfb,nfqso,iwave,ndecodes,mycall, &
a=0.
a(1)=real(idf)
ctwk=1.
call clockit('twkfreq1',0)
call twkfreq1(ctwk,4*NSS,fs,a,ctwk2)
call clockit('twkfreq1',1)
call clockit('sync4d ',0)
do istart=ibmin,ibmax,ibstp
call sync4d(cd2,istart,ctwk2,1,sync) !Find sync power
if(sync.gt.smax) then
@ -116,14 +126,19 @@ subroutine ft4_decode(cdatetime0,tbuf,nfa,nfb,nfqso,iwave,ndecodes,mycall, &
idfbest=idf
endif
enddo
call clockit('sync4d ',1)
enddo
enddo
f0=f0+real(idfbest)
call clockit('ft4down ',0)
call ft4_downsample(iwave,f0,cb) !Final downsample with corrected f0
call clockit('ft4down ',1)
sum2=sum(abs(cb)**2)/(real(NSS)*NN)
if(sum2.gt.0.0) cb=cb/sqrt(sum2)
cd=cb(ibest:ibest+NN*NSS-1)
call clockit('four2a ',0)
do k=1,NN
i1=(k-1)*NSS
csymb=cd(i1:i1+NSS-1)
@ -131,6 +146,7 @@ subroutine ft4_decode(cdatetime0,tbuf,nfa,nfb,nfqso,iwave,ndecodes,mycall, &
cs(0:3,k)=csymb(1:4)
s4(0:3,k)=abs(csymb(1:4))
enddo
call clockit('four2a ',1)
! Sync quality check
is1=0
@ -195,9 +211,11 @@ subroutine ft4_decode(cdatetime0,tbuf,nfa,nfb,nfqso,iwave,ndecodes,mycall, &
enddo
enddo
call clockit('normaliz',0)
call normalizebmet(bmeta,2*NN)
call normalizebmet(bmetb,2*NN)
call normalizebmet(bmetc,2*NN)
call clockit('normaliz',1)
hbits=0
where(bmeta.ge.0) hbits=1
@ -233,8 +251,10 @@ subroutine ft4_decode(cdatetime0,tbuf,nfa,nfb,nfqso,iwave,ndecodes,mycall, &
llr2=llr
if(ibias.eq.1) llr2=llr+0.4
if(ibias.eq.2) llr2=llr-0.4
call clockit('bpdecode',0)
call bpdecode174_91(llr2,apmask,max_iterations,message77, &
cw,nharderror,niterations)
call clockit('bpdecode',1)
if(nharderror.ge.0) exit
enddo
if(sum(message77).eq.0) cycle
@ -286,6 +306,8 @@ subroutine ft4_decode(cdatetime0,tbuf,nfa,nfb,nfqso,iwave,ndecodes,mycall, &
endif
enddo !Sequence estimation
enddo !Candidate list
call clockit('ft4_deco',1)
call clockit('ft4_deco',101)
return
entry get_ft4msg(idecode,nrx,line)