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FFTW wisdom is now built into jt9[.exe].
New optional argument to jt9: -w patience
Default is patience = 1
Example timing measurements for 130610_2343.wav:
patience plan execute
(s) (s)
-----------------------------------------------
0 0.01 1.25 FFTW_ESTIMATE
1 0.69 1.25 FFTW_ESTIMATE_PATIENT
2 16.97 1.15 FFTW_MEASURE
3 390.88 1.15 FFTW_PATIENT
Conclusions, consistent with expectation based on past experience
with similar FFTs:
- First decode (in each mode) with patience = 2 is slow.
- Speed advantage of patience = 2 is small but measurable.
- No measurable advantage in using patience > 2.
Present mainwindow.cpp has "-w 1" hard-wired.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@4610 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
This commit is contained in:
Joe Taylor
parent
b3f4432f67
commit
3a5edb5af5
@ -19,10 +19,11 @@ subroutine filbig(dd,npts,f0,newdat,c4a,n4,sq0)
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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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data first/.true./,npatience/1/
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data first/.true./
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data halfpulse/114.97547150,36.57879257,-20.93789101, &
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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
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save
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if(npts.lt.0) go to 900 !Clean up at end of program
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@ -22,8 +22,8 @@ subroutine four2a(a,nfft,ndim,isign,iform)
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complex aa(NSMALL)
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integer nn(NPMAX),ns(NPMAX),nf(NPMAX)
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integer*8 plan(NPMAX),nl(NPMAX),nloc
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! character cfftw*20
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data nplan/0/,npatience/1/
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data nplan/0/
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common/patience/npatience
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include 'fftw3.f90'
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save plan,nplan,nn,ns,nf,nl
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@ -42,16 +42,6 @@ subroutine four2a(a,nfft,ndim,isign,iform)
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nf(i)=iform
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nl(i)=nloc
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! cfftw(1:2)='ci'
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! if(nf(i).ne.1) cfftw(1:2)='ri'
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! cfftw(3:3)='f'
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! if(ns(i).eq.1) cfftw(3:3)='b'
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! write(cfftw(4:),*) nn(i)
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! cfftw=cfftw(1:3)//cfftw(5:)
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! write(12,3999) i,nn(i),ns(i),nf(i),cfftw
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!3999 format(4i10,2x,a20)
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! flush(12)
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! Planning: FFTW_ESTIMATE, FFTW_ESTIMATE_PATIENT, FFTW_MEASURE,
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! FFTW_PATIENT, FFTW_EXHAUSTIVE
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nflags=FFTW_ESTIMATE
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63
lib/jt9.f90
63
lib/jt9.f90
@ -18,9 +18,11 @@ program jt9
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common/jt9com/ss(184,NSMAX),savg(NSMAX),id2(NMAX),nutc,ndiskdat,ntr, &
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mousefqso,newdat,nfa,nfsplit,nfb,ntol,kin,nzhsym,nsynced,ndecoded
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common/tracer/limtrace,lu
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common/patience/npatience
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data npatience/1/
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do
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call getopt('s:e:a:r:p:d:f:',long_options,c,optarg,arglen,stat,offset,remain)
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call getopt('s:e:a:r:p:d:f:w:',long_options,c,optarg,arglen,stat,offset,remain)
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if (stat .ne. 0) then
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exit
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end if
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@ -47,19 +49,41 @@ program jt9
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case ('f')
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read_files = .true.
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read (optarg(:arglen), *) nrxfreq
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case ('w')
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read (optarg(:arglen), *) npatience
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end select
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end do
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if (.not. have_args .or. (stat .lt. 0 .or. (shmem .and. remain .gt. 0) &
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.or. (read_files .and. remain .eq. 0) .or. (shmem .and. read_files))) then
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print*,'Usage: jt9 -p TRperiod -d ndepth -f rxfreq -e exe_dir file1 [file2 ...]'
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if (.not. have_args .or. (stat .lt. 0 .or. (shmem .and. remain .gt. 0) &
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.or. (read_files .and. remain .eq. 0) .or. &
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(shmem .and. read_files))) then
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print*,'Usage: jt9 -p TRperiod [-d ndepth] [-f rxfreq] {-w patience] -e exe_dir file1 [file2 ...]'
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print*,' Reads data from *.wav files.'
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print*,''
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print*,' jt9 -s <key> -e exe_dir'
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print*,' jt9 -s <key> [-w patience] -e exe_dir'
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print*,' Gets data from shared memory region with key==<key>'
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go to 999
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endif
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! Import FFTW wisdom, if available:
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open(14,file=trim(data_dir)//'/jt9_wisdom_status.txt',status='unknown',err=30)
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open(28,file=trim(data_dir)//'/jt9_wisdom.dat',status='old',err=30)
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read(28,1000,err=30,end=30) firstline
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1000 format(a30)
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rewind 28
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isuccess=0
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call import_wisdom_from_file(isuccess,28)
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close(28)
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30 if(isuccess.ne.0) then
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write(14,1010) firstline
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1010 format('Imported FFTW wisdom (jt9): ',a30)
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else
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write(14,1011)
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1011 format('No imported FFTW wisdom (jt9):')
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endif
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call flush(14)
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if (shmem) then
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call jt9a()
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go to 999
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@ -103,19 +127,7 @@ program jt9
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npts=(60*ntrperiod-6)*12000
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if(iarg .eq. offset + 1) then
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open(12,file=trim(data_dir)//'/timer.out',status='unknown')
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! Import FFTW wisdom, if available:
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open(28,file=trim(data_dir)//'/fftwf_wisdom.dat',status='old',err=30)
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read(28,1000,err=30,end=30) firstline
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1000 format(a30)
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rewind 28
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call import_wisdom_from_file(isuccess,28)
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close(28)
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if(isuccess.ne.0) write(12,1010) firstline
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1010 format('Imported FFTW wisdom: ',a30)
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call flush(12)
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30 call timer('jt9 ',0)
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call timer('jt9 ',0)
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endif
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id2=0 !??? Why is this necessary ???
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@ -150,4 +162,17 @@ program jt9
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998 print*,'Cannot open file:'
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print*,infile
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999 end program jt9
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999 continue
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! Export FFTW wisdom
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open(28,file=trim(data_dir)//'/jt9_wisdom.dat',status='unknown',err=9999)
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call export_wisdom_to_file(28)
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close(28)
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write(14,1999)
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1999 format('Exported FFTW wisdom (jt9): ')
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call flush(14)
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9999 continue
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call four2a(a,-1,1,1,1) !Save wisdom and free memory
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call filbig(a,-1,1,0.0,0,0,0,0,0) !used for FFT plans
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end program jt9
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14
lib/jt9a.f90
14
lib/jt9a.f90
@ -25,18 +25,7 @@ subroutine jt9a()
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call getcwd(cwd)
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open(12,file=trim(data_dir)//'/timer.out',status='unknown')
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! Import FFTW wisdom, if available:
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open(28,file=trim(exe_dir)//'/fftwf_wisdom.dat',status='old',err=30)
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read(28,1000,err=30,end=30) firstline
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1000 format(a30)
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rewind 28
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call import_wisdom_from_file(isuccess,28)
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close(28)
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if(isuccess.ne.0) write(12,1010) firstline
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1010 format('Imported FFTW wisdom: ',a30)
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call flush(12)
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30 limtrace=0
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limtrace=0
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! limtrace=-1 !Disable all calls to timer()
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lu=12
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@ -55,7 +44,6 @@ subroutine jt9a()
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inquire(file='.quit',exist=fileExists)
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if(fileExists) then
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! call ftnquit
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i1=detach_jt9()
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go to 999
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endif
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