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The "big FFTs" should be computed only once for each new set of Rx data.

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This requires setting newdat=0 after the big FFT is computed.  In the OMP
code this must be done separately for each mode; so new variables newdat9 
and newdat65 have been defined.  Both are set to "newdat", the value
forwarded from the GUI, each time jt9[_omp][.exe] goes into action. 


git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@4946 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
This commit is contained in:
Joe Taylor 2015-02-08 15:07:31 +00:00
parent 609bcb0009
commit 93b729282b
3 changed files with 12 additions and 9 deletions
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16
lib/decoder.f90
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@ -39,6 +39,8 @@ subroutine decoder(ss,id2)
endif
ntol65=20
newdat65=newdat
newdat9=newdat
!$ call omp_set_dynamic(.true.)
!$omp parallel sections num_threads(2) copyin(/tracer_priv/) shared(ndecoded)
@ -46,16 +48,16 @@ subroutine decoder(ss,id2)
!$omp section
if(nmode.eq.65 .or. (nmode.gt.65 .and. ntxmode.eq.65)) then
! We're decoding JT65 or should do this mode first
if(newdat.ne.0) dd(1:npts65)=id2(1:npts65)
if(newdat65.ne.0) dd(1:npts65)=id2(1:npts65)
nf1=nfa
nf2=nfb
call timer('jt65a ',0)
call jt65a(dd,npts65,newdat,nutc,nf1,nf2,nfqso,ntol65,nagain,ndecoded)
call jt65a(dd,npts65,newdat65,nutc,nf1,nf2,nfqso,ntol65,nagain,ndecoded)
call timer('jt65a ',1)
else
! We're decoding JT9 or should do this mode first
call timer('decjt9 ',0)
call decjt9(ss,id2,nutc,nfqso,newdat,npts8,nfa,nfsplit,nfb,ntol,nzhsym, &
call decjt9(ss,id2,nutc,nfqso,newdat9,npts8,nfa,nfsplit,nfb,ntol,nzhsym, &
nagain,ndepth,nmode)
call timer('decjt9 ',1)
endif
@ -63,16 +65,16 @@ subroutine decoder(ss,id2)
!$omp section
if(nmode.gt.65) then ! do the other mode in dual mode
if (ntxmode.eq.9) then
if(newdat.ne.0) dd(1:npts65)=id2(1:npts65)
if(newdat65.ne.0) dd(1:npts65)=id2(1:npts65)
nf1=nfa
nf2=nfb
call timer('jt65a ',0)
call jt65a(dd,npts65,newdat,nutc,nf1,nf2,nfqso,ntol65,nagain,ndecoded)
call jt65a(dd,npts65,newdat65,nutc,nf1,nf2,nfqso,ntol65,nagain,ndecoded)
call timer('jt65a ',1)
else
call timer('decjt9 ',0)
call decjt9(ss,id2,nutc,nfqso,newdat,npts8,nfa,nfsplit,nfb,ntol,nzhsym, &
nagain,ndepth,nmode)
call decjt9(ss,id2,nutc,nfqso,newdat9,npts8,nfa,nfsplit,nfb,ntol, &
nzhsym,nagain,ndepth,nmode)
call timer('decjt9 ',1)
end if
endif

4
lib/downsam9.f90
View File

@ -45,8 +45,7 @@ subroutine downsam9(id2,npts8,nsps8,newdat,nspsd,fpk,c2,nz2)
endif
if(newdat.eq.1) then
fac=6.963e-6 !Why this weird constant?
x1(0:npts-1)=fac*id2(0:npts-1)
x1(0:npts-1)=id2(0:npts-1)
x1(npts:nfft1-1)=0. !Zero the rest of x1
call timer('FFTbig9 ',0)
call fftwf_execute_dft_r2c(plan,x1,c1)
@ -61,6 +60,7 @@ subroutine downsam9(id2,npts8,nsps8,newdat,nspsd,fpk,c2,nz2)
s(i)=s(i)+real(c1(j))**2 + aimag(c1(j))**2
enddo
enddo
newdat=0
endif
ndown=8*nsps8/nspsd !Downsample factor

1
lib/filbig.f90
View File

@ -87,6 +87,7 @@ subroutine filbig(dd,npts,f0,newdat,c4a,n4,sq0)
ca(ia:ib)=fac*conjg(ca(ia:ib))
enddo
call timer('flatten ',1)
newdat=0
endif
! NB: f0 is the frequency at which we want our filter centered.