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Allow use on nonthreading model by setting nthreads=0.
Require at least 10 iterations. git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@4915 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
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@ -12,10 +12,12 @@ program timefft
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integer(C_INT) iret
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integer*8 count0,count1,clkfreq
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character problem*9
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logical linplace,lcomplex
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logical linplace,lcomplex,lthreading
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! Get command-line parameters
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call timefft_opts(npatience,maxthreads,linplace,lcomplex,nfft,problem,nflags)
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lthreading=maxthreads.ge.1
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maxthreads=max(1,maxthreads)
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! Allocate data arrays
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pa=fftwf_alloc_complex(int(nfft,C_SIZE_T))
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@ -30,7 +32,7 @@ program timefft
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call c_f_pointer(pc,c,[nfft])
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! Initialize FFTW threading
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iret=fftwf_init_threads()
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if(lthreading) iret=fftwf_init_threads()
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! Import FFTW wisdom, if available
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iret=fftwf_import_wisdom_from_filename(C_CHAR_'wis.dat' // C_NULL_CHAR)
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@ -51,7 +53,7 @@ program timefft
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a(1:nfft)=b(1:nfft) !Copy test data into a()
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call system_clock(count0,clkfreq)
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! Make the plans
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call fftwf_plan_with_nthreads(nthreads)
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if(lthreading) call fftwf_plan_with_nthreads(nthreads)
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if(lcomplex) then
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if(linplace) then
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plan1=fftwf_plan_dft_1d(nfft,a,a,-1,nflags)
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@ -96,7 +98,7 @@ program timefft
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endif
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call system_clock(count1,clkfreq)
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total=total + float(count1-count0)/float(clkfreq)
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if(total.ge.1.0) go to 40 !Cut iterations short if t>1 s
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if(total>=1.0 .and. iter>=10) go to 40 !Cut iterations short ?
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enddo
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iter=iters
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