mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2024-11-12 07:06:17 -05:00
Many changes in program jt9[.exe] aimed at speeding up the decoders.
The long FFTs can now use the multi-threaded FFTW routines. Subroutine decode9.f90 was renamed jt9fano.f90. The JT9 decoder's top-level functions were removed from decoder.f90 and put into a separate subroutine decjt90.f90. Subroutine decoder.f90 is now configured for possible use of OpenMP SECTIONS, with the JT9 and JT65 decoders running concurrently on a multi-core machine. Note, however, that this concurrent processing is not yet fully implemented. Probably calls to timer need to be removed; some variables used in calls to jt65a and decjt9 may need to be declared PRIVATE in decoder; some sections probably need to be declared CRITICAL; probably some SAVE statements in downstream routines have made them not thread-safe; etc., etc. I'm a neophyte at using OpenMP. Comments, suggestions, and/or tests by others will be welcome! git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@4919 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
This commit is contained in:
parent
8c377b9c87
commit
94472ac31c
@ -241,8 +241,9 @@ set (wsjt_FSRCS
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lib/dcoord.f90
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lib/decode65a.f90
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lib/decode65b.f90
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lib/decode9.f90
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lib/jt9fano.f90
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lib/decoder.f90
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lib/decjt9.f90
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lib/deg2grid.f90
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lib/demod64a.f90
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lib/determ.f90
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@ -13,7 +13,7 @@ CC = c:/JTSDK/Qt5/Tools/mingw48_32/bin/gcc
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FC = c:/JTSDK/Qt5/Tools/mingw48_32/bin/gfortran
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CXX = c:/JTSDK/Qt5/Tools/mingw48_32/bin/g++
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FFLAGS = -O2 -fbounds-check -Wall -fno-second-underscore -DWIN32
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FFLAGS = -O2 -Wall -fno-second-underscore -DWIN32
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CFLAGS = -I. -fbounds-check -mno-stack-arg-probe -DWIN32
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# Default rules
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@ -37,7 +37,7 @@ OBJS1 = pctile.o graycode.o sort.o ssort.o chkmsg.o \
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nchar.o four2a.o grid2deg.o pfxdump.o wisdom.o \
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symspec.o analytic.o db.o genjt9.o flat1.o smo.o \
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packbits.o unpackbits.o encode232.o interleave9.o \
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entail.o fano232.o gran.o sync9.o decode9.o \
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entail.o fano232.o gran.o sync9.o jt9fano.o \
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fil3.o decoder.o grid2n.o n2grid.o timer.o \
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softsym.o getlags.o afc9.o fchisq.o twkfreq.o downsam9.o \
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peakdt9.o symspec2.o stdmsg.o morse.o azdist.o geodist.o \
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@ -47,14 +47,14 @@ OBJS1 = pctile.o graycode.o sort.o ssort.o chkmsg.o \
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extract.o fchisq65.o demod64a.o chkhist.o interleave63.o ccf2.o \
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move.o indexx.o graycode65.o twkfreq65.o smo121.o \
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wrapkarn.o init_rs.o encode_rs.o decode_rs.o gen65.o fil4.o \
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flat3.o polfit.o determ.o baddata.o prog_args.f90 \
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options.o prog_args.o
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flat3.o polfit.o determ.o baddata.o prog_args.o \
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options.o fmtmsg.o decjt9.o
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libjt9.a: $(OBJS1)
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ar cr libjt9.a $(OBJS1)
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ranlib libjt9.a
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OBJS2 = jt9.o jt9a.o jt9b.o jt9c.o ipcomm.o sec_midn.o usleep.o
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OBJS2 = jt9.o jt9a.o jt9b.o jt9c.o ipcomm.o sec_midn.o usleep.o
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LIBS2 = -L'C:/JTSDK/Qt5/5.2.1/mingw48_32/lib' -lQt5Core
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jt9.exe: $(OBJS2) libjt9.a
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$(CXX) -o jt9.exe -static $(OBJS2) $(LIBS2) libjt9.a \
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145
lib/decoder.f90
145
lib/decoder.f90
@ -1,21 +1,13 @@
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subroutine decoder(ss,id2)
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! Decoder for JT9.
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use prog_args
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include 'constants.f90'
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real ss(184,NSMAX)
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character*22 msg
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character*20 datetime
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real*4 ccfred(NSMAX)
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real*4 red2(NSMAX)
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logical ccfok(NSMAX)
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logical done(NSMAX)
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logical done65,baddata
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integer*2 id2(NTMAX*12000)
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real*4 dd(NTMAX*12000)
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integer*1 i1SoftSymbols(207)
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common/npar/nutc,ndiskdat,ntrperiod,nfqso,newdat,npts8,nfa,nfsplit,nfb, &
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ntol,kin,nzhsym,nsave,nagain,ndepth,ntxmode,nmode,datetime
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common/tracer/limtrace,lu
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@ -29,10 +21,11 @@ subroutine decoder(ss,id2)
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if (nagain .eq. 0) then
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open(13,file=trim(temp_dir)//'/decoded.txt',status='unknown')
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else
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open(13,file=trim(temp_dir)//'/decoded.txt',status='unknown',position='append')
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open(13,file=trim(temp_dir)//'/decoded.txt',status='unknown', &
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position='append')
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end if
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open(22,file=trim(temp_dir)//'/kvasd.dat',access='direct',recl=1024,status='unknown')
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open(22,file=trim(temp_dir)//'/kvasd.dat',access='direct',recl=1024, &
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status='unknown')
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npts65=52*12000
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if(baddata(id2,npts65)) then
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@ -48,138 +41,34 @@ subroutine decoder(ss,id2)
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if(newdat.ne.0) dd(1:npts65)=id2(1:npts65)
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nf1=nfa
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nf2=nfb
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! if(nmode.eq.65+9) nf2=nfsplit
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call jt65a(dd,npts65,newdat,nutc,nf1,nf2,nfqso,ntol65,nagain,ndecoded)
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done65=.true.
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endif
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if(nmode.eq.65) go to 800
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nsynced=0
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ndecoded=0
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nsps=0
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! print*,'A'
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!!$OMP PARALLEL PRIVATE(id)
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!!$OMP SECTIONS
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nsps=6912 !Params for JT9-1
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df3=1500.0/2048.0
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tstep=0.5*nsps/12000.0 !Half-symbol step (seconds)
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done=.false.
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nf0=0
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nf1=nfa
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if(nmode.eq.65+9) nf1=nfsplit
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ia=max(1,nint((nf1-nf0)/df3))
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ib=min(NSMAX,nint((nfb-nf0)/df3))
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lag1=-(2.5/tstep + 0.9999)
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lag2=5.0/tstep + 0.9999
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if(newdat.ne.0) then
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call timer('sync9 ',0)
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call sync9(ss,nzhsym,lag1,lag2,ia,ib,ccfred,red2,ipk)
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call timer('sync9 ',1)
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endif
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nsps8=nsps/8
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df8=1500.0/nsps8
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dblim=db(864.0/nsps8) - 26.2
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do nqd=1,0,-1
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limit=5000
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ccflim=3.0
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red2lim=1.6
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schklim=2.2
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if(ndepth.eq.2) then
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limit=10000
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ccflim=2.7
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endif
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if(ndepth.ge.3 .or. nqd.eq.1) then
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limit=100000
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ccflim=2.5
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endif
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ccfok=.false.
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if(nqd.eq.1) then
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nfa1=nfqso-ntol
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nfb1=nfqso+ntol
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ia=max(1,nint((nfa1-nf0)/df3))
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ib=min(NSMAX,nint((nfb1-nf0)/df3))
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ccfok(ia:ib)=(ccfred(ia:ib).gt.(ccflim-2.0)) .and. &
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(red2(ia:ib).gt.(red2lim-1.0))
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ia1=ia
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ib1=ib
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else
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nfa1=nf1
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nfb1=nfb
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ia=max(1,nint((nfa1-nf0)/df3))
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ib=min(NSMAX,nint((nfb1-nf0)/df3))
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do i=ia,ib
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ccfok(i)=ccfred(i).gt.ccflim .and. red2(i).gt.red2lim
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enddo
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ccfok(ia1:ib1)=.false.
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endif
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fgood=0.
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do i=ia,ib
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if(done(i) .or. (.not.ccfok(i))) cycle
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f=(i-1)*df3
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if(nqd.eq.1 .or. &
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(ccfred(i).ge.ccflim .and. abs(f-fgood).gt.10.0*df8)) then
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if(nqd.eq.0) nfreqs0=nfreqs0+1
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if(nqd.eq.1) nfreqs1=nfreqs1+1
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call timer('softsym ',0)
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fpk=nf0 + df3*(i-1)
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call softsym(id2,npts8,nsps8,newdat,fpk,syncpk,snrdb,xdt, &
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freq,drift,schk,i1SoftSymbols)
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call timer('softsym ',1)
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sync=(syncpk+1)/4.0
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if(maxval(i1SoftSymbols).eq.0) cycle
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if(nqd.eq.1 .and. ((sync.lt.0.5) .or. (schk.lt.2.0))) cycle
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if(nqd.ne.1 .and. ((sync.lt.1.0) .or. (schk.lt.schklim))) cycle
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call timer('decode9 ',0)
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call decode9(i1SoftSymbols,limit,nlim,msg)
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call timer('decode9 ',1)
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if(sync.lt.0.0 .or. snrdb.lt.dblim-2.0) sync=0.0
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nsync=sync
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if(nsync.gt.10) nsync=10
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nsnr=nint(snrdb)
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ndrift=nint(drift/df3)
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if(msg.ne.' ') then
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if(nqd.eq.0) ndecodes0=ndecodes0+1
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if(nqd.eq.1) ndecodes1=ndecodes1+1
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write(*,1000) nutc,nsnr,xdt,nint(freq),msg
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1000 format(i4.4,i4,f5.1,i5,1x,'@',1x,a22)
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write(13,1002) nutc,nsync,nsnr,xdt,freq,ndrift,msg
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1002 format(i4.4,i4,i5,f6.1,f8.0,i4,3x,a22,' JT9')
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iaa=max(1,i-1)
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ibb=min(NSMAX,i+22)
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fgood=f
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nsynced=1
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ndecoded=1
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ccfok(iaa:ibb)=.false.
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done(iaa:ibb)=.true.
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call flush(6)
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endif
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endif
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enddo
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call flush(6)
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if(nagain.ne.0) exit
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enddo
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!!$OMP SECTION
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! print*,'B'
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call decjt9(ss,id2,nutc,nfqso,newdat,npts8,nfa,nfsplit,nfb,ntol,nzhsym, &
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nagain,ndepth,nmode)
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!!$OMP SECTION
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if(nmode.ge.65 .and. (.not.done65)) then
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if(newdat.ne.0) dd(1:npts65)=id2(1:npts65)
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nf1=nfa
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nf2=nfb
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! print*,'C'
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call jt65a(dd,npts65,newdat,nutc,nf1,nf2,nfqso,ntol65,nagain,ndecoded)
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endif
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!!$OMP END SECTIONS NOWAIT
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!!$OMP END PARALLEL
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! print*,'D'
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! JT65 is not yet producing info for nsynced, ndecoded.
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800 write(*,1010) nsynced,ndecoded
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1010 format('<DecodeFinished>',2i4)
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@ -3,15 +3,22 @@ subroutine downsam9(id2,npts8,nsps8,newdat,nspsd,fpk,c2,nz2)
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!Downsample from id2() into C2() so as to yield nspsd samples per symbol,
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!mixing from fpk down to zero frequency.
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use, intrinsic :: iso_c_binding
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use FFTW3
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include 'constants.f90'
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parameter (NMAX1=1024*1920)
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! parameter (NMAX1=1024*1920)
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parameter (NMAX1=884736)
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type(C_PTR) :: plan !Pointers plan for big FFT
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integer*2 id2(0:8*npts8-1)
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real*4 x1(0:NMAX1-1)
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complex c1(0:NMAX1/2)
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complex c2(0:4096-1)
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real s(5000)
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equivalence (c1,x1)
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save
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logical first
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common/patience/npatience,nthreads
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data first/.true./
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save plan,first
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nfft1=1024*nsps8 !Forward FFT length
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df1=12000.0/nfft1
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@ -23,14 +30,33 @@ subroutine downsam9(id2,npts8,nsps8,newdat,nspsd,fpk,c2,nz2)
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x1(i)=fac*id2(i)
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enddo
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x1(npts:nfft1-1)=0. !Zero the rest of x1
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call timer('fft_forw',0)
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call four2a(c1,nfft1,1,-1,0) !Forward FFT, r2c
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call timer('fft_forw',1)
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endif
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nadd=1.0/df1
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if(first) then
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nflags=FFTW_ESTIMATE
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if(npatience.eq.1) nflags=FFTW_ESTIMATE_PATIENT
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if(npatience.eq.2) nflags=FFTW_MEASURE
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if(npatience.eq.3) nflags=FFTW_PATIENT
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if(npatience.eq.4) nflags=FFTW_EXHAUSTIVE
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! Plan the FFTs just once
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plan=fftwf_plan_dft_r2c_1d(nfft1,x1,c1,nflags)
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first=.false.
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endif
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if(newdat.eq.1) then
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fac=6.963e-6 !Why this weird constant?
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do i=0,npts-1
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x1(i)=fac*id2(i)
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enddo
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x1(npts:nfft1-1)=0. !Zero the rest of x1
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call timer('FFTbig9 ',0)
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call fftwf_execute_dft_r2c(plan,x1,c1)
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call timer('FFTbig9 ',1)
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nadd=int(1.0/df1)
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s=0.
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do i=1,5000
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j=(i-1)/df1
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j=int((i-1)/df1)
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do n=1,nadd
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j=j+1
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s(i)=s(i)+real(c1(j))**2 + aimag(c1(j))**2
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@ -42,7 +68,7 @@ subroutine downsam9(id2,npts8,nsps8,newdat,nspsd,fpk,c2,nz2)
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nfft2=nfft1/ndown !Backward FFT length
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nh2=nfft2/2
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nf=nint(fpk)
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i0=fpk/df1
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i0=int(fpk/df1)
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nw=100
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ia=max(1,nf-nw)
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@ -57,9 +83,9 @@ subroutine downsam9(id2,npts8,nsps8,newdat,nspsd,fpk,c2,nz2)
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if(i.gt.nh2) j=j-nfft2
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c2(i)=fac*c1(j)
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enddo
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call timer('fft_back',0)
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call timer('FFTsmal9',0)
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call four2a(c2,nfft2,1,1,1) !FFT back to time domain
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call timer('fft_back',1)
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call timer('FFTsmal9',1)
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nz2=8*npts8/ndown
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return
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@ -20,7 +20,6 @@ subroutine filbig(dd,npts,f0,newdat,c4a,n4,sq0)
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real rfilt(NFFT2) !Filter (real)
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! integer*8 plan1,plan2,plan3
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type(C_PTR) :: plan1,plan2,plan3 !Pointers to FFTW plans
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logical first
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! include 'fftw3.f90'
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equivalence (rfilt,cfilt),(rca,ca)
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@ -29,7 +28,7 @@ subroutine filbig(dd,npts,f0,newdat,c4a,n4,sq0)
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5.89886379,1.59355187,-2.49138308,0.60910773,-0.04248129/
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common/refspec/dfref,ref(NSZ)
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common/patience/npatience,nthreads
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save
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save first,plan1,plan2,plan3
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if(npts.lt.0) go to 900 !Clean up at end of program
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@ -54,7 +53,7 @@ subroutine filbig(dd,npts,f0,newdat,c4a,n4,sq0)
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cfilt(i)=fac*halfpulse(i)
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cfilt(nfft2+2-i)=fac*halfpulse(i)
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enddo
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call sfftw_execute(plan3)
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call fftwf_execute_dft(plan3,cfilt,cfilt)
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base=real(cfilt(nfft2/2+1))
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do i=1,nfft2
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@ -73,7 +72,7 @@ subroutine filbig(dd,npts,f0,newdat,c4a,n4,sq0)
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nz=min(npts,nfft1)
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rca(1:nz)=dd(1:nz)
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rca(nz+1:)=0.
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call sfftw_execute(plan1)
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call fftwf_execute_dft_r2c(plan1,rca,ca)
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call timer('FFTbig ',1)
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call timer('flatten ',0)
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@ -124,14 +123,14 @@ subroutine filbig(dd,npts,f0,newdat,c4a,n4,sq0)
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! Do the short reverse transform, to go back to time domain.
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call timer('FFTsmall',0)
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call sfftw_execute(plan2)
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call fftwf_execute_dft(plan2,c4a,c4a)
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call timer('FFTsmall',1)
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n4=min(npts/8,nfft2)
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return
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900 call sfftw_destroy_plan(plan1)
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call sfftw_destroy_plan(plan2)
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call sfftw_destroy_plan(plan3)
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900 call fftwf_destroy_plan(plan1)
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call fftwf_destroy_plan(plan2)
|
||||
call fftwf_destroy_plan(plan3)
|
||||
|
||||
return
|
||||
end subroutine filbig
|
||||
|
@ -164,8 +164,9 @@ program jt9
|
||||
|
||||
999 continue
|
||||
iret=fftwf_export_wisdom_to_filename(wisfile)
|
||||
|
||||
call four2a(a,-1,1,1,1) !Save wisdom and free memory
|
||||
call filbig(a,-1,1,0.0,0,0,0,0,0) !used for FFT plans
|
||||
call four2a(a,-1,1,1,1) !Save wisdom and free memory
|
||||
call filbig(a,-1,1,0.0,0,0,0,0,0) !used for FFT plans
|
||||
call fftwf_cleanup_threads()
|
||||
call fftwf_cleanup()
|
||||
|
||||
end program jt9
|
||||
|
@ -1,4 +1,4 @@
|
||||
subroutine decode9(i1SoftSymbols,limit,nlim,msg)
|
||||
subroutine jt9fano(i1SoftSymbols,limit,nlim,msg)
|
||||
|
||||
! Decoder for JT9
|
||||
! Input: i1SoftSymbols(207) - Single-bit soft symbols
|
||||
@ -82,4 +82,4 @@ subroutine decode9(i1SoftSymbols,limit,nlim,msg)
|
||||
endif
|
||||
|
||||
return
|
||||
end subroutine decode9
|
||||
end subroutine jt9fano
|
@ -160,7 +160,7 @@ program jt9sim
|
||||
if(i4.ge.128) i1SoftSymbols(i)=i4-256
|
||||
enddo
|
||||
limit=1000
|
||||
call decode9(i1SoftSymbols,limit,nlim,msg)
|
||||
call jt9fano(i1SoftSymbols,limit,nlim,msg)
|
||||
if(msg.ne.msg0) print*,'Decode error: ',msg0,' ',msg
|
||||
endif
|
||||
enddo
|
||||
|
@ -1,7 +1,6 @@
|
||||
subroutine sync9(ss,nzhsym,lag1,lag2,ia,ib,ccfred,red2,ipkbest)
|
||||
|
||||
include 'constants.f90'
|
||||
! parameter (NSMAX=1365) !Max length of saved spectra
|
||||
real ss(184,NSMAX)
|
||||
real ss1(184)
|
||||
real ccfred(NSMAX)
|
||||
@ -20,7 +19,6 @@ subroutine sync9(ss,nzhsym,lag1,lag2,ia,ib,ccfred,red2,ipkbest)
|
||||
do i=ia,ib !Loop over freq range
|
||||
ss1=ss(1:184,i)
|
||||
call pctile(ss1,nzhsym,40,xmed)
|
||||
! xmed=sum(ss1(1:nzhsym))/nzhsym
|
||||
|
||||
ss1=ss1/xmed - 1.0
|
||||
do j=1,nzhsym
|
||||
@ -66,8 +64,6 @@ subroutine sync9(ss,nzhsym,lag1,lag2,ia,ib,ccfred,red2,ipkbest)
|
||||
do j=1,nzhsym
|
||||
savg(ia:ib)=savg(ia:ib) + ss(j,ia:ib)
|
||||
enddo
|
||||
! df=1500.0/2048.0 ! 0.732422
|
||||
! df9=12000.0/6912.0 ! 1.736111
|
||||
savg(ia:ib)=savg(ia:ib)/nzhsym
|
||||
smo(0:20)=1.0/21.0
|
||||
smo(-5:-1)=-(1.0/21.0)*(21.0/10.0)
|
||||
@ -92,10 +88,7 @@ subroutine sync9(ss,nzhsym,lag1,lag2,ia,ib,ccfred,red2,ipkbest)
|
||||
red2(i)=savg2(i)-ref
|
||||
if(red2(i).lt.-99.0) red2(i)=-99.0
|
||||
if(red2(i).gt.99.0) red2(i)=99.0
|
||||
! write(30,3001) i,i*df+1000.0,savg2(i),red2(i),ccfred(i)
|
||||
!3001 format(i8,4f10.3)
|
||||
enddo
|
||||
! call flush(30)
|
||||
|
||||
return
|
||||
end subroutine sync9
|
||||
|
Loading…
Reference in New Issue
Block a user