Adam's new constr_dist single chain
[unres.git] / source / unres / src_MD / readrtns.F
index 8f70874..38f8e89 100644 (file)
@@ -8,6 +8,7 @@
       include 'COMMON.CONTROL'
       include 'COMMON.SBRIDGE'
       include 'COMMON.IOUNITS'
+      include 'COMMON.CHAIN'
       logical file_exist
 C Read force-field parameters except weights
       call parmread
@@ -40,13 +41,18 @@ C Print restraint information
 #ifdef MPI
       if (.not. out1file .or. me.eq.king) then
 #endif
-      if (nhpb.gt.nss) 
-     &write (iout,'(a,i5,a)') "The following",nhpb-nss,
-     & " distance constraints have been imposed"
-      do i=nss+1,nhpb
-        write (iout,'(3i6,i2,3f10.5)') i-nss,ihpb(i),jhpb(i),
-     &     ibecarb(i),dhpb(i),dhpb1(i),forcon(i)
-      enddo
+      if (nhpb.gt.nss) then
+        write (iout,'(/a,i5,a/4a5,2a8,3a10,a5)')
+     &  "The following",nhpb-nss,
+     &  " distance restraints have been imposed:",
+     &  "   Nr"," res1"," res2"," beta","   d1","   d2","    k","    V",
+     &  "  score"," type"
+        do i=nss+1,nhpb
+          write (iout,'(4i5,2f8.2,3f10.5,i5)')i-nss,ihpb(i),jhpb(i),
+     &  ibecarb(i),dhpb(i),dhpb1(i),forcon(i),fordepth(i),xlscore(i),
+     &  irestr_type(i)
+        enddo
+      endif
 #ifdef MPI
       endif
 #endif
@@ -96,6 +102,8 @@ c      print *,"Processor",me," fg_rank",fg_rank," out1file",out1file
 C Set up the time limit (caution! The time must be input in minutes!)
       read_cart=index(controlcard,'READ_CART').gt.0
       call readi(controlcard,'CONSTR_DIST',constr_dist,0)
+      call readi(controlcard,'CONSTR_HOMOL',constr_homology,0)
+      read_homol_frag = index(controlcard,"READ_HOMOL_FRAG").gt.0
       call reada(controlcard,'TIMLIM',timlim,960.0D0) ! default 16 hours
       unres_pdb = index(controlcard,'UNRES_PDB') .gt. 0
       call reada(controlcard,'SAFETY',safety,30.0D0) ! default 30 minutes
@@ -129,6 +137,7 @@ C Set up the time limit (caution! The time must be input in minutes!)
       sideadd=(index(controlcard,'SIDEADD').gt.0)
       energy_dec=(index(controlcard,'ENERGY_DEC').gt.0)
       outpdb=(index(controlcard,'PDBOUT').gt.0)
+      outx=(index(controlcard,'XOUT').gt.0)
       outmol2=(index(controlcard,'MOL2OUT').gt.0)
       pdbref=(index(controlcard,'PDBREF').gt.0)
       refstr=pdbref .or. (index(controlcard,'REFSTR').gt.0)
@@ -138,7 +147,7 @@ C Set up the time limit (caution! The time must be input in minutes!)
       call readi(controlcard,'MAXGEN',maxgen,10000)
       call readi(controlcard,'MAXOVERLAP',maxoverlap,1000)
       call readi(controlcard,"KDIAG",kdiag,0)
-      call readi(controlcard,"RESCALE_MODE",rescale_mode,1)
+      call readi(controlcard,"RESCALE_MODE",rescale_mode,2)
       if(me.eq.king .or. .not. out1file .and. fg_rank.eq.0)
      & write (iout,*) "RESCALE_MODE",rescale_mode
       split_ene=index(controlcard,'SPLIT_ENE').gt.0
@@ -147,6 +156,7 @@ C Set up the time limit (caution! The time must be input in minutes!)
         modecalc=1
         refstr=.true.
       endif
+      call reada(controlcard,"CHECKGRAD_INC",checkgrad_inc,1.0d-4)
       if (index(controlcard,'CHECKGRAD').gt.0) then
         modecalc=5
         if (index(controlcard,'CART').gt.0) then
@@ -372,7 +382,6 @@ C
       endif
       call reada(controlcard,"Q_NP",Q_np,0.1d0)
       usampl = index(controlcard,"USAMPL").gt.0
-
       mdpdb = index(controlcard,"MDPDB").gt.0
       call reada(controlcard,"T_BATH",t_bath,300.0d0)
       call reada(controlcard,"TAU_BATH",tau_bath,1.0d-1) 
@@ -386,6 +395,11 @@ C
       large = index(controlcard,"LARGE").gt.0
       print_compon = index(controlcard,"PRINT_COMPON").gt.0
       rattle = index(controlcard,"RATTLE").gt.0
+      preminim = index(controlcard,"PREMINIM").gt.0
+      if (preminim) then
+        dccart=(index(controlcard,'CART').gt.0)
+        call read_minim
+      endif
 c  if performing umbrella sampling, fragments constrained are read from the fragment file 
       nset=0
       if(usampl) then
@@ -426,6 +440,10 @@ c  if performing umbrella sampling, fragments constrained are read from the frag
        write (iout,'(a60,i10)') "Frequency of coordinate output:",ntwx
        if (rattle) write (iout,'(a60)') 
      &  "Rattle algorithm used to constrain the virtual bonds"
+       if (preminim .or. iranconf.gt.0) then
+         write (iout,'(a60)')
+     &      "Initial structure will be energy-minimized" 
+       endif
       endif
       reset_fricmat=1000
       if (lang.gt.0) then
@@ -627,6 +645,7 @@ C
       common /pizda/ itype_pdb
       logical seq_comp,fail
       double precision energia(0:n_ene)
+      
       integer ilen
       external ilen
 C
@@ -749,6 +768,10 @@ C 12/1/95 Added weight for the multi-body term WCORR
        call reada(weightcard,'WTORD',wtor_d,1.0D0)
        call reada(weightcard,'WANG',wang,1.0D0)
        call reada(weightcard,'WSCLOC',wscloc,1.0D0)
+       call reada(weightcard,'WDFAD',wdfa_dist,0.0d0)
+       call reada(weightcard,'WDFAT',wdfa_tor,0.0d0)
+       call reada(weightcard,'WDFAN',wdfa_nei,0.0d0)
+       call reada(weightcard,'WDFAB',wdfa_beta,0.0d0)
        call reada(weightcard,'SCAL14',scal14,0.4D0)
        call reada(weightcard,'SCALSCP',scalscp,1.0d0)
        call reada(weightcard,'CUTOFF',cutoff_corr,7.0d0)
@@ -778,11 +801,16 @@ C 12/1/95 Added weight for the multi-body term WCORR
        weights(18)=scal14
        weights(21)=wsccor
       endif
+       weights(25)=wdfa_dist
+       weights(26)=wdfa_tor
+       weights(27)=wdfa_nei
+       weights(28)=wdfa_beta
 
       if(me.eq.king.or..not.out1file)
      & write (iout,10) wsc,wscp,welec,wvdwpp,wbond,wang,wscloc,wtor,
      &  wtor_d,wstrain,wel_loc,wcorr,wcorr5,wcorr6,wsccor,wturn3,
-     &  wturn4,wturn6
+     &  wturn4,wturn6,
+     &  wdfa_dist,wdfa_tor,wdfa_nei,wdfa_beta
    10 format (/'Energy-term weights (unscaled):'//
      & 'WSCC=   ',f10.6,' (SC-SC)'/
      & 'WSCP=   ',f10.6,' (SC-p)'/
@@ -801,7 +829,11 @@ C 12/1/95 Added weight for the multi-body term WCORR
      & 'WSCCOR= ',f10.6,' (back-scloc correlation)'/
      & 'WTURN3= ',f10.6,' (turns, 3rd order)'/
      & 'WTURN4= ',f10.6,' (turns, 4th order)'/
-     & 'WTURN6= ',f10.6,' (turns, 6th order)')
+     & 'WTURN6= ',f10.6,' (turns, 6th order)'/
+     & 'WDFA_D= ',f10.6,' (DFA, distance)'   /
+     & 'WDFA_T= ',f10.6,' (DFA, torsional)'   /
+     & 'WDFA_N= ',f10.6,' (DFA, number of neighbor)'   /
+     & 'WDFA_B= ',f10.6,' (DFA, beta formation)')
       if(me.eq.king.or..not.out1file)then
        if (wcorr4.gt.0.0d0) then
         write (iout,'(/2a/)') 'Local-electrostatic type correlation ',
@@ -829,7 +861,8 @@ C 12/1/95 Added weight for the multi-body term WCORR
       if(me.eq.king.or..not.out1file)
      & write (iout,22) wsc,wscp,welec,wvdwpp,wbond,wang,wscloc,wtor,
      &  wtor_d,wstrain,wel_loc,wcorr,wcorr5,wcorr6,wsccor,wturn3,
-     &  wturn4,wturn6
+     &  wturn4,wturn6,
+     &  wdfa_dist,wdfa_tor,wdfa_nei,wdfa_beta
    22 format (/'Energy-term weights (scaled):'//
      & 'WSCC=   ',f10.6,' (SC-SC)'/
      & 'WSCP=   ',f10.6,' (SC-p)'/
@@ -848,7 +881,11 @@ C 12/1/95 Added weight for the multi-body term WCORR
      & 'WSCCOR= ',f10.6,' (back-scloc correlatkion)'/
      & 'WTURN3= ',f10.6,' (turns, 3rd order)'/
      & 'WTURN4= ',f10.6,' (turns, 4th order)'/
-     & 'WTURN6= ',f10.6,' (turns, 6th order)')
+     & 'WTURN6= ',f10.6,' (turns, 6th order)'/
+     & 'WDFA_D= ',f10.6,' (DFA, distance)'   /
+     & 'WDFA_T= ',f10.6,' (DFA, torsional)'   /
+     & 'WDFA_N= ',f10.6,' (DFA, number of neighbor)'   /
+     & 'WDFA_B= ',f10.6,' (DFA, beta formation)')
       if(me.eq.king.or..not.out1file)
      & write (iout,*) "Reference temperature for weights calculation:",
      &  temp0
@@ -860,12 +897,36 @@ C 12/1/95 Added weight for the multi-body term WCORR
       call reada(weightcard,"V2SS",v2ss,7.61d0)
       call reada(weightcard,"V3SS",v3ss,13.7d0)
       call reada(weightcard,"EBR",ebr,-5.50D0)
+      dyn_ss=(index(weightcard,'DYN_SS').gt.0)
+      do i=1,maxres
+        dyn_ss_mask(i)=.false.
+      enddo
+      do i=1,maxres-1
+        do j=i+1,maxres
+          dyn_ssbond_ij(i,j)=1.0d300
+        enddo
+      enddo
+      call reada(weightcard,"HT",Ht,0.0D0)
+      if (dyn_ss) then
+        ss_depth=ebr/wsc-0.25*eps(1,1)
+        Ht=Ht/wsc-0.25*eps(1,1)
+        akcm=akcm*wstrain/wsc
+        akth=akth*wstrain/wsc
+        akct=akct*wstrain/wsc
+        v1ss=v1ss*wstrain/wsc
+        v2ss=v2ss*wstrain/wsc
+        v3ss=v3ss*wstrain/wsc
+      else
+        ss_depth=ebr/wstrain-0.25*eps(1,1)*wsc/wstrain
+      endif
+
       if(me.eq.king.or..not.out1file) then
        write (iout,*) "Parameters of the SS-bond potential:"
        write (iout,*) "D0CM",d0cm," AKCM",akcm," AKTH",akth,
      & " AKCT",akct
        write (iout,*) "V1SS",v1ss," V2SS",v2ss," V3SS",v3ss
-       write (iout,*) "EBR",ebr
+       write (iout,*) "EBR",ebr," SS_DEPTH",ss_depth
+       write (iout,*)" HT",Ht
        print *,'indpdb=',indpdb,' pdbref=',pdbref
       endif
       if (indpdb.gt.0 .or. pdbref) then
@@ -880,6 +941,17 @@ C 12/1/95 Added weight for the multi-body term WCORR
   34    continue
 c        print *,'Begin reading pdb data'
         call readpdb
+        do i=1,2*nres
+          do j=1,3
+            crefjlee(j,i)=c(j,i)
+          enddo
+        enddo
+#ifdef DEBUG
+        do i=1,nres
+          write (iout,'(i5,3f8.3,5x,3f8.3)') i,(crefjlee(j,i),j=1,3),
+     &      (crefjlee(j,i+nres),j=1,3)
+        enddo
+#endif
 c        print *,'Finished reading pdb data'
         if(me.eq.king.or..not.out1file)
      &   write (iout,'(a,i3,a,i3)')'nsup=',nsup,
@@ -893,6 +965,9 @@ c        print *,'Finished reading pdb data'
         call contact(.false.,ncont_ref,icont_ref,co)
 
         if (sideadd) then 
+C Following 2 lines for diagnostics; comment out if not needed
+         write (iout,*) "Before sideadd"
+         call intout
          if(me.eq.king.or..not.out1file)
      &    write(iout,*)'Adding sidechains'
          maxsi=1000
@@ -909,7 +984,12 @@ c        print *,'Finished reading pdb data'
      &              i,' after ',nsi,' trials'
           endif
          enddo
+C 10/03/12 Adam: Recalculate coordinates with new side chain positions
+         call chainbuild
         endif  
+C Following 2 lines for diagnostics; comment out if not needed
+c        write (iout,*) "After sideadd"
+c        call intout
       endif
       if (indpdb.eq.0) then
 C Read sequence if not taken from the pdb file.
@@ -924,6 +1004,20 @@ C Convert sequence to numeric code
         do i=1,nres
           itype(i)=rescode(i,sequence(i),iscode)
         enddo
+        if (itype(2).eq.10.and.itype(1).eq.ntyp1) then
+          write (iout,*) 
+     &     "Glycine is the first full residue, initial dummy deleted"
+          do i=1,nres
+            itype(i)=itype(i+1)
+          enddo
+          nres=nres-1
+        endif
+        if (itype(nres-1).eq.10.and.itype(nres).eq.ntyp1) then
+          write (iout,*) 
+     &     "Glycine is the last full residue, terminal dummy deleted"
+          nres=nres-1
+        endif
+
 C Assign initial virtual bond lengths
         do i=2,nres
           vbld(i)=vbl
@@ -1007,6 +1101,23 @@ C 8/13/98 Set limits to generating the dihedral angles
 cd      print *,'NNT=',NNT,' NCT=',NCT
       if (itype(1).eq.21) nnt=2
       if (itype(nres).eq.21) nct=nct-1
+
+C     Bartek:READ init_vars
+C     Initialize variables!
+C     Juyong:READ read_info
+C     READ fragment information!!
+C     both routines should be in dfa.F file!!
+
+#ifdef DFA
+      if (.not. (wdfa_dist.eq.0.0 .and. wdfa_tor.eq.0.0 .and.
+     &            wdfa_nei.eq.0.0 .and. wdfa_beta.eq.0.0)) then
+       call init_dfa_vars
+       print*, 'init_dfa_vars finished!'
+       call read_dfa_info
+       print*, 'read_dfa_info finished!'
+      endif
+#endif
+C
       if (pdbref) then
         if(me.eq.king.or..not.out1file)
      &   write (iout,'(a,i3)') 'nsup=',nsup
@@ -1095,10 +1206,57 @@ czscore          call geom_to_var(nvar,coord_exp_zs(1,1))
 c        write (iout,*) "constr_dist",constr_dist,nstart_sup,nsup
       if (constr_dist.gt.0) then
         call read_dist_constr
-        call hpb_partition
       endif
+
+
+      if (constr_homology.gt.0) then
+        call read_constr_homology
+        if (indpdb.gt.0 .or. pdbref) then
+          do i=1,2*nres
+            do j=1,3
+              c(j,i)=crefjlee(j,i)
+              cref(j,i)=crefjlee(j,i)
+            enddo
+          enddo
+        endif
+#ifdef DEBUG
+        write (iout,*) "Array C"
+        do i=1,nres
+          write (iout,'(i5,3f8.3,5x,3f8.3)') i,(c(j,i),j=1,3),
+     &      (c(j,i+nres),j=1,3)
+        enddo
+        write (iout,*) "Array Cref"
+        do i=1,nres
+          write (iout,'(i5,3f8.3,5x,3f8.3)') i,(cref(j,i),j=1,3),
+     &      (cref(j,i+nres),j=1,3)
+        enddo
+#endif
+       call int_from_cart1(.false.)
+       call sc_loc_geom(.false.)
+       do i=1,nres
+         thetaref(i)=theta(i)
+         phiref(i)=phi(i)
+       enddo
+       do i=1,nres-1
+         do j=1,3
+           dc(j,i)=c(j,i+1)-c(j,i)
+           dc_norm(j,i)=dc(j,i)*vbld_inv(i+1)
+         enddo
+       enddo
+       do i=2,nres-1
+         do j=1,3
+           dc(j,i+nres)=c(j,i+nres)-c(j,i)
+           dc_norm(j,i+nres)=dc(j,i+nres)*vbld_inv(i+nres)
+         enddo
+       enddo
+      else
+        homol_nset=0
+      endif
+
+
+      if (nhpb.gt.0) call hpb_partition
 c      write (iout,*) "After read_dist_constr nhpb",nhpb
-      call flush(iout)
+c      call flush(iout)
       if (indpdb.eq.0 .and. modecalc.ne.2 .and. modecalc.ne.4
      &    .and. modecalc.ne.8 .and. modecalc.ne.9 .and. 
      &    modecalc.ne.10) then
@@ -1108,6 +1266,8 @@ C initial geometry.
           if(me.eq.king.or..not.out1file .and.fg_rank.eq.0)
      &     write (iout,'(a)') 'Initial geometry will be read in.'
           if (read_cart) then
+            read (inp,*) time,potE,uconst,t_bath,
+     &       nss,(ihpb(j),jhpb(j),j=1,nss), nn, (qfrag(i),i=1,nn)
             read(inp,'(8f10.5)',end=36,err=36)
      &       ((c(l,k),l=1,3),k=1,nres),
      &       ((c(l,k+nres),l=1,3),k=nnt,nct)
@@ -1126,7 +1286,7 @@ C initial geometry.
                 enddo
               endif
             enddo
-            return
+c            return
           else
             call read_angles(inp,*36)
           endif
@@ -1210,6 +1370,8 @@ C Generate distance constraints, if the PDB structure is to be regularized.
       if (nthread.gt.0) then
         call read_threadbase
       endif
+      write (iout,*) "READRTNS: Calling setup_var"
+      call flush(iout)
       call setup_var
       if (me.eq.king .or. .not. out1file)
      & call intout
@@ -1217,18 +1379,35 @@ C Generate distance constraints, if the PDB structure is to be regularized.
         write (iout,'(/a,i3,a)') 
      &  'The chain contains',ns,' disulfide-bridging cysteines.'
         write (iout,'(20i4)') (iss(i),i=1,ns)
+       if (dyn_ss) then
+          write(iout,*)"Running with dynamic disulfide-bond formation"
+       else
         write (iout,'(/a/)') 'Pre-formed links are:' 
        do i=1,nss
          i1=ihpb(i)-nres
          i2=jhpb(i)-nres
          it1=itype(i1)
          it2=itype(i2)
-         if (me.eq.king.or..not.out1file)
-     &    write (iout,'(2a,i3,3a,i3,a,3f10.3)')
+          write (iout,'(2a,i3,3a,i3,a,3f10.3)')
      &    restyp(it1),'(',i1,') -- ',restyp(it2),'(',i2,')',dhpb(i),
      &    ebr,forcon(i)
        enddo
        write (iout,'(a)')
+       endif
+      endif
+      if (ns.gt.0.and.dyn_ss) then
+          do i=nss+1,nhpb
+            ihpb(i-nss)=ihpb(i)
+            jhpb(i-nss)=jhpb(i)
+            forcon(i-nss)=forcon(i)
+            dhpb(i-nss)=dhpb(i)
+          enddo
+          nhpb=nhpb-nss
+          nss=0
+          call hpb_partition
+          do i=1,ns
+            dyn_ss_mask(iss(i))=.true.
+          enddo
       endif
       if (i2ndstr.gt.0) call secstrp2dihc
 c      call geom_to_var(nvar,x)
@@ -1292,10 +1471,12 @@ C Check whether the specified bridging residues are cystines.
       do i=1,ns
        if (itype(iss(i)).ne.1) then
          if (me.eq.king.or..not.out1file) write (iout,'(2a,i3,a)') 
-     &   'Do you REALLY think that the residue ',restyp(iss(i)),i,
+     &   'Do you REALLY think that the residue ',
+     &    restyp(itype(iss(i))),i,
      &   ' can form a disulfide bridge?!!!'
          write (*,'(2a,i3,a)') 
-     &   'Do you REALLY think that the residue ',restyp(iss(i)),i,
+     &   'Do you REALLY think that the residue ',
+     &    restyp(itype(iss(i))),i,
      &   ' can form a disulfide bridge?!!!'
 #ifdef MPI
         call MPI_Finalize(MPI_COMM_WORLD,ierror)
@@ -1306,7 +1487,8 @@ C Check whether the specified bridging residues are cystines.
 C Read preformed bridges.
       if (ns.gt.0) then
       read (inp,*) nss,(ihpb(i),jhpb(i),i=1,nss)
-      write (iout,*) 'nss=',nss,' ihpb,jhpb: ',(ihpb(i),jhpb(i),i=1,nss)
+      if(fg_rank.eq.0)
+     & write(iout,*)'nss=',nss,' ihpb,jhpb: ',(ihpb(i),jhpb(i),i=1,nss)
       if (nss.gt.0) then
         nhpb=nss
 C Check if the residues involved in bridges are in the specified list of
@@ -1813,6 +1995,9 @@ c----------------------------------------------------------------------------
       call readi(minimcard,'MINFUN',minfun,maxmin)
       call reada(minimcard,'TOLF',tolf,1.0D-2)
       call reada(minimcard,'RTOLF',rtolf,1.0D-4)
+      print_min_stat=min0(index(minimcard,'PRINT_MIN_STAT'),1)
+      print_min_res=min0(index(minimcard,'PRINT_MIN_RES'),1)
+      print_min_ini=min0(index(minimcard,'PRINT_MIN_INI'),1)
       write (iout,'(/80(1h*)/20x,a/80(1h*))') 
      &         'Options in energy minimization:'
       write (iout,'(4(a,i5),a,1pe14.5,a,1pe14.5)')
@@ -2083,38 +2268,38 @@ C Get parameter filenames and open the parameter files.
       open (isidep,file=sidename,status='old')
 #else
       open(1,file=pref_orig(:ilen(pref_orig))//'.inp',status='old',
-     &  readonly)
+     &action='read')
        open (9,file=prefix(:ilen(prefix))//'.intin',status='unknown')
 C      open (18,file=prefix(:ilen(prefix))//'.entin',status='unknown')
 C Get parameter filenames and open the parameter files.
       call getenv_loc('BONDPAR',bondname)
-      open (ibond,file=bondname,status='old',readonly)
+      open (ibond,file=bondname,status='old',action='read')
       call getenv_loc('THETPAR',thetname)
-      open (ithep,file=thetname,status='old',readonly)
+      open (ithep,file=thetname,status='old',action='read')
 #ifndef CRYST_THETA
       call getenv_loc('THETPARPDB',thetname_pdb)
       print *,"thetname_pdb ",thetname_pdb
-      open (ithep_pdb,file=thetname_pdb,status='old',readonly)
+      open (ithep_pdb,file=thetname_pdb,status='old',action='read')
       print *,ithep_pdb," opened"
 #endif
       call getenv_loc('ROTPAR',rotname)
-      open (irotam,file=rotname,status='old',readonly)
+      open (irotam,file=rotname,status='old',action='read')
 #ifndef CRYST_SC
       call getenv_loc('ROTPARPDB',rotname_pdb)
-      open (irotam_pdb,file=rotname_pdb,status='old',readonly)
+      open (irotam_pdb,file=rotname_pdb,status='old',action='read')
 #endif
       call getenv_loc('TORPAR',torname)
-      open (itorp,file=torname,status='old',readonly)
+      open (itorp,file=torname,status='old',action='read')
       call getenv_loc('TORDPAR',tordname)
-      open (itordp,file=tordname,status='old',readonly)
+      open (itordp,file=tordname,status='old',action='read')
       call getenv_loc('SCCORPAR',sccorname)
-      open (isccor,file=sccorname,status='old',readonly)
+      open (isccor,file=sccorname,status='old',action='read')
       call getenv_loc('FOURIER',fouriername)
-      open (ifourier,file=fouriername,status='old',readonly)
+      open (ifourier,file=fouriername,status='old',action='read')
       call getenv_loc('ELEPAR',elename)
-      open (ielep,file=elename,status='old',readonly)
+      open (ielep,file=elename,status='old',action='read')
       call getenv_loc('SIDEPAR',sidename)
-      open (isidep,file=sidename,status='old',readonly)
+      open (isidep,file=sidename,status='old',action='read')
 #endif
 #ifndef OLDSCP
 C
@@ -2129,7 +2314,7 @@ C
 #elif (defined G77)
       open (iscpp,file=scpname,status='old')
 #else
-      open (iscpp,file=scpname,status='old',readonly)
+      open (iscpp,file=scpname,status='old',action='read')
 #endif
 #endif
       call getenv_loc('PATTERN',patname)
@@ -2140,7 +2325,7 @@ C
 #elif (defined G77)
       open (icbase,file=patname,status='old')
 #else
-      open (icbase,file=patname,status='old',readonly)
+      open (icbase,file=patname,status='old',action='read')
 #endif
 #ifdef MPI
 C Open output file only for CG processes
@@ -2165,6 +2350,8 @@ c      print *,"Processor",myrank," fg_rank",fg_rank
      &  //'.pdb'
       mol2name=prefix(:lenpre)//'_'//pot(:lenpot)//
      &  liczba(:ilen(liczba))//'.mol2'
+      cartname=prefix(:lenpre)//'_'//pot(:lenpot)//
+     &  liczba(:ilen(liczba))//'.x'
       statname=prefix(:lenpre)//'_'//pot(:lenpot)//
      &  liczba(:ilen(liczba))//'.stat'
       if (lentmp.gt.0)
@@ -2183,6 +2370,7 @@ c      print *,"Processor",myrank," fg_rank",fg_rank
       intname=prefix(:lenpre)//'_'//pot(:lenpot)//'.int'
       pdbname=prefix(:lenpre)//'_'//pot(:lenpot)//'.pdb'
       mol2name=prefix(:lenpre)//'_'//pot(:lenpot)//'.mol2'
+      cartname=prefix(:lenpre)//'_'//pot(:lenpot)//'.x'
       statname=prefix(:lenpre)//'_'//pot(:lenpot)//'.stat'
       if (lentmp.gt.0)
      &  call copy_to_tmp(pref_orig(:ilen(pref_orig))//'_'//pot(:lenpot)
@@ -2195,6 +2383,7 @@ c      print *,"Processor",myrank," fg_rank",fg_rank
 #if defined(AIX) || defined(PGI)
       if (me.eq.king .or. .not. out1file) 
      &   open(iout,file=outname,status='unknown')
+c#define DEBUG
 #ifdef DEBUG
       if (fg_rank.gt.0) then
         write (liczba,'(i3.3)') myrank/nfgtasks
@@ -2203,6 +2392,7 @@ c      print *,"Processor",myrank," fg_rank",fg_rank
      &   status='unknown')
       endif
 #endif
+c#undef DEBUG
       if(me.eq.king) then
        open(igeom,file=intname,status='unknown',position='append')
        open(ipdb,file=pdbname,status='unknown')
@@ -2214,14 +2404,17 @@ c1out       open(iout,file=outname,status='unknown')
 #else
       if (me.eq.king .or. .not.out1file)
      &    open(iout,file=outname,status='unknown')
+c#define DEBUG
 #ifdef DEBUG
       if (fg_rank.gt.0) then
+        print "Processor",fg_rank," opening output file"
         write (liczba,'(i3.3)') myrank/nfgtasks
         write (ll,'(bz,i3.3)') fg_rank
         open(iout,file="debug"//liczba(:ilen(liczba))//"."//ll,
      &   status='unknown')
       endif
 #endif
+c#undef DEBUG
       if(me.eq.king) then
        open(igeom,file=intname,status='unknown',access='append')
        open(ipdb,file=pdbname,status='unknown')
@@ -2311,6 +2504,7 @@ c-------------------------------------------------------------------------------
       include 'COMMON.CHAIN'
       include 'COMMON.IOUNITS'
       include 'COMMON.MD'
+      include 'COMMON.CONTROL'
       open(irest2,file=rest2name,status='unknown')
       read(irest2,*) totT,EK,potE,totE,t_bath
       do i=1,2*nres
@@ -2319,7 +2513,7 @@ c-------------------------------------------------------------------------------
       do i=1,2*nres
          read(irest2,'(3e15.5)') (dc(j,i),j=1,3)
       enddo
-      if(usampl) then
+      if(usampl.or.homol_nset.gt.1) then
              read (irest2,*) iset
       endif
       close(irest2)
@@ -2337,33 +2531,36 @@ c-------------------------------------------------------------------------------
       include 'COMMON.IOUNITS'
       include 'COMMON.MD'
       include 'COMMON.CONTROL'
+      integer iset1
       read(inp,*) nset,nfrag,npair,nfrag_back
       if(me.eq.king.or..not.out1file)
      & write(iout,*) "nset",nset," nfrag",nfrag," npair",npair,
      &  " nfrag_back",nfrag_back
-      do iset=1,nset
-         read(inp,*) mset(iset)
+      do iset1=1,nset
+         read(inp,*) mset(iset1)
        do i=1,nfrag
-         read(inp,*) wfrag(i,iset),ifrag(1,i,iset),ifrag(2,i,iset), 
-     &     qinfrag(i,iset)
+         read(inp,*) wfrag(i,iset1),ifrag(1,i,iset1),ifrag(2,i,iset1), 
+     &     qinfrag(i,iset1)
          if(me.eq.king.or..not.out1file)
-     &    write(iout,*) "R ",i,wfrag(i,iset),ifrag(1,i,iset),
-     &     ifrag(2,i,iset), qinfrag(i,iset)
+     &    write(iout,*) "R ",i,wfrag(i,iset1),ifrag(1,i,iset1),
+     &     ifrag(2,i,iset1), qinfrag(i,iset1)
        enddo
        do i=1,npair
-        read(inp,*) wpair(i,iset),ipair(1,i,iset),ipair(2,i,iset), 
-     &    qinpair(i,iset)
+        read(inp,*) wpair(i,iset1),ipair(1,i,iset1),ipair(2,i,iset1), 
+     &    qinpair(i,iset1)
         if(me.eq.king.or..not.out1file)
-     &   write(iout,*) "R ",i,wpair(i,iset),ipair(1,i,iset),
-     &    ipair(2,i,iset), qinpair(i,iset)
+     &   write(iout,*) "R ",i,wpair(i,iset1),ipair(1,i,iset1),
+     &    ipair(2,i,iset1), qinpair(i,iset1)
        enddo 
        do i=1,nfrag_back
-        read(inp,*) wfrag_back(1,i,iset),wfrag_back(2,i,iset),
-     &     wfrag_back(3,i,iset),
-     &     ifrag_back(1,i,iset),ifrag_back(2,i,iset)
+        read(inp,*) wfrag_back(1,i,iset1),wfrag_back(2,i,iset1),
+     &     wfrag_back(3,i,iset1),
+     &     ifrag_back(1,i,iset1),ifrag_back(2,i,iset1)
         if(me.eq.king.or..not.out1file)
-     &   write(iout,*) "A",i,wfrag_back(1,i,iset),wfrag_back(2,i,iset),
-     &   wfrag_back(3,i,iset),ifrag_back(1,i,iset),ifrag_back(2,i,iset)
+     &   write(iout,*) "A",i,wfrag_back(1,i,iset1),
+     &   wfrag_back(2,i,iset1),
+     &   wfrag_back(3,i,iset1),ifrag_back(1,i,iset1),
+     &   ifrag_back(2,i,iset1)
        enddo 
       enddo
       return
@@ -2383,18 +2580,40 @@ c-------------------------------------------------------------------------------
       integer ifrag_(2,100),ipair_(2,100)
       double precision wfrag_(100),wpair_(100)
       character*500 controlcard
-c      write (iout,*) "Calling read_dist_constr"
+      logical normalize,next
+      integer restr_type
+      double precision xlink(4,0:4) /
+c           a          b       c     sigma
+     &   0.0d0,0.0d0,0.0d0,0.0d0,                             ! default, no xlink potential
+     &   0.00305218d0,9.46638d0,4.68901d0,4.74347d0,          ! ZL
+     &   0.00214928d0,12.7517d0,0.00375009d0,6.13477d0,       ! ADH
+     &   0.00184547d0,11.2678d0,0.00140292d0,7.00868d0,       ! PDH
+     &   0.000161786d0,6.29273d0,4.40993d0,7.13956d0    /     ! DSS
+c      print *, "WCHODZE" 
+      write (iout,*) "Calling read_dist_constr"
 c      write (iout,*) "nres",nres," nstart_sup",nstart_sup," nsup",nsup
 c      call flush(iout)
+      next=.true.
+
+      DO WHILE (next)
+
       call card_concat(controlcard)
+      next = index(controlcard,"NEXT").gt.0
+      call readi(controlcard,"RESTR_TYPE",restr_type,constr_dist)
+      write (iout,*) "restr_type",restr_type
+      call readi(controlcard,"NFRAG",nfrag_,0)
       call readi(controlcard,"NFRAG",nfrag_,0)
       call readi(controlcard,"NPAIR",npair_,0)
       call readi(controlcard,"NDIST",ndist_,0)
       call reada(controlcard,'DIST_CUT',dist_cut,5.0d0)
+      if (restr_type.eq.10) 
+     &  call reada(controlcard,'WBOLTZD',wboltzd,0.591d0)
       call multreadi(controlcard,"IFRAG",ifrag_(1,1),2*nfrag_,0)
       call multreadi(controlcard,"IPAIR",ipair_(1,1),2*npair_,0)
       call multreada(controlcard,"WFRAG",wfrag_(1),nfrag_,0.0d0)
       call multreada(controlcard,"WPAIR",wpair_(1),npair_,0.0d0)
+      normalize = index(controlcard,"NORMALIZE").gt.0
+      write (iout,*) "WBOLTZD",wboltzd
 c      write (iout,*) "NFRAG",nfrag_," NPAIR",npair_," NDIST",ndist_
 c      write (iout,*) "IFRAG"
 c      do i=1,nfrag_
@@ -2404,46 +2623,38 @@ c      write (iout,*) "IPAIR"
 c      do i=1,npair_
 c        write (iout,*) i,ipair_(1,i),ipair_(2,i),wpair_(i)
 c      enddo
-      if (.not.refstr .and. nfrag.gt.0) then
-        write (iout,*) 
-     &  "ERROR: no reference structure to compute distance restraints"
-        write (iout,*)
-     &  "Restraints must be specified explicitly (NDIST=number)"
-        stop 
-      endif
-      if (nfrag.lt.2 .and. npair.gt.0) then 
-        write (iout,*) "ERROR: Less than 2 fragments specified",
-     &   " but distance restraints between pairs requested"
-        stop 
-      endif 
-      call flush(iout)
+      if (nfrag_.gt.0) write (iout,*) 
+     &   "Distance restraints as generated from reference structure"
       do i=1,nfrag_
         if (ifrag_(1,i).lt.nstart_sup) ifrag_(1,i)=nstart_sup
         if (ifrag_(2,i).gt.nstart_sup+nsup-1)
      &    ifrag_(2,i)=nstart_sup+nsup-1
 c        write (iout,*) i,ifrag_(1,i),ifrag_(2,i),wfrag_(i)
-        call flush(iout)
-        if (wfrag_(i).gt.0.0d0) then
+c        call flush(iout)
+        if (wfrag_(i).eq.0.0d0) cycle
         do j=ifrag_(1,i),ifrag_(2,i)-1
           do k=j+1,ifrag_(2,i)
-            write (iout,*) "j",j," k",k
+c            write (iout,*) "j",j," k",k
             ddjk=dist(j,k)
-            if (constr_dist.eq.1) then
-            nhpb=nhpb+1
-            ihpb(nhpb)=j
-            jhpb(nhpb)=k
+            if (restr_type.eq.1) then
+              nhpb=nhpb+1
+              irestr_type(nhpb)=1
+              ihpb(nhpb)=j
+              jhpb(nhpb)=k
               dhpb(nhpb)=ddjk
-            forcon(nhpb)=wfrag_(i) 
+              forcon(nhpb)=wfrag_(i) 
             else if (constr_dist.eq.2) then
               if (ddjk.le.dist_cut) then
                 nhpb=nhpb+1
+                irestr_type(nhpb)=1
                 ihpb(nhpb)=j
                 jhpb(nhpb)=k
                 dhpb(nhpb)=ddjk
                 forcon(nhpb)=wfrag_(i) 
               endif
-            else
+            else if (restr_type.eq.3) then
               nhpb=nhpb+1
+              irestr_type(nhpb)=1
               ihpb(nhpb)=j
               jhpb(nhpb)=k
               dhpb(nhpb)=ddjk
@@ -2451,18 +2662,17 @@ c        write (iout,*) i,ifrag_(1,i),ifrag_(2,i),wfrag_(i)
             endif
 #ifdef MPI
             if (.not.out1file .or. me.eq.king) 
-     &      write (iout,'(a,3i5,f8.2,1pe12.2)') "+dist.constr ",
+     &      write (iout,'(a,3i5,f8.2,1pe12.2)') "+dist.restr ",
      &       nhpb,ihpb(nhpb),jhpb(nhpb),dhpb(nhpb),forcon(nhpb)
 #else
-            write (iout,'(a,3i5,f8.2,1pe12.2)') "+dist.constr ",
+            write (iout,'(a,3i5,f8.2,1pe12.2)') "+dist.restr ",
      &       nhpb,ihpb(nhpb),jhpb(nhpb),dhpb(nhpb),forcon(nhpb)
 #endif
           enddo
         enddo
-        endif
       enddo
       do i=1,npair_
-        if (wpair_(i).gt.0.0d0) then
+        if (wpair_(i).eq.0.0d0) cycle
         ii = ipair_(1,i)
         jj = ipair_(2,i)
         if (ii.gt.jj) then
@@ -2472,50 +2682,843 @@ c        write (iout,*) i,ifrag_(1,i),ifrag_(2,i),wfrag_(i)
         endif
         do j=ifrag_(1,ii),ifrag_(2,ii)
           do k=ifrag_(1,jj),ifrag_(2,jj)
-            nhpb=nhpb+1
-            ihpb(nhpb)=j
-            jhpb(nhpb)=k
-            forcon(nhpb)=wpair_(i)
-            dhpb(nhpb)=dist(j,k)
+            if (restr_type.eq.1) then
+              nhpb=nhpb+1
+              irestr_type(nhpb)=1
+              ihpb(nhpb)=j
+              jhpb(nhpb)=k
+              dhpb(nhpb)=ddjk
+              forcon(nhpb)=wfrag_(i) 
+            else if (constr_dist.eq.2) then
+              if (ddjk.le.dist_cut) then
+                nhpb=nhpb+1
+                irestr_type(nhpb)=1
+                ihpb(nhpb)=j
+                jhpb(nhpb)=k
+                dhpb(nhpb)=ddjk
+                forcon(nhpb)=wfrag_(i) 
+              endif
+            else if (restr_type.eq.3) then
+              nhpb=nhpb+1
+              irestr_type(nhpb)=1
+              ihpb(nhpb)=j
+              jhpb(nhpb)=k
+              dhpb(nhpb)=ddjk
+              forcon(nhpb)=wfrag_(i)*dexp(-0.5d0*(ddjk/dist_cut)**2)
+            endif
 #ifdef MPI
             if (.not.out1file .or. me.eq.king)
-     &      write (iout,'(a,3i5,f8.2,f10.1)') "+dist.constr ",
+     &      write (iout,'(a,3i5,f8.2,f10.1)') "+dist.restr ",
      &       nhpb,ihpb(nhpb),jhpb(nhpb),dhpb(nhpb),forcon(nhpb)
 #else
-            write (iout,'(a,3i5,f8.2,f10.1)') "+dist.constr ",
+            write (iout,'(a,3i5,f8.2,f10.1)') "+dist.restr ",
      &       nhpb,ihpb(nhpb),jhpb(nhpb),dhpb(nhpb),forcon(nhpb)
 #endif
           enddo
         enddo
-        endif
       enddo 
+
+c      print *,ndist_
+      write (iout,*) "Distance restraints as read from input"
       do i=1,ndist_
-        read (inp,*) ihpb(nhpb+1),jhpb(nhpb+1),dhpb(i),dhpb1(i),
-     &     ibecarb(i),forcon(nhpb+1)
-        if (forcon(nhpb+1).gt.0.0d0) then
+        if (restr_type.eq.11) then
+          read (inp,*) ihpb(nhpb+1),jhpb(nhpb+1),dhpb(nhpb+1),
+     &     dhpb1(nhpb+1),ibecarb(i),forcon(nhpb+1),fordepth(nhpb+1)
+c        fordepth(nhpb+1)=fordepth(nhpb+1)/forcon(nhpb+1)
+          if (forcon(nhpb+1).le.0.0d0.or.fordepth(nhpb+1).le.0.0d0)cycle
           nhpb=nhpb+1
-          if (ibecarb(i).gt.0) then
-            ihpb(i)=ihpb(i)+nres
-            jhpb(i)=jhpb(i)+nres
+          irestr_type(nhpb)=11
+#ifdef MPI
+          if (.not.out1file .or. me.eq.king)
+     &    write (iout,'(a,4i5,2f8.2,2f10.5,i5)') "+dist.restr ",
+     &     nhpb,ihpb(nhpb),jhpb(nhpb),ibecarb(nhpb),dhpb(nhpb),
+     &     dhpb1(nhpb),forcon(nhpb),fordepth(nhpb),irestr_type(nhpb)
+#else
+          write (iout,'(a,4i5,2f8.2,2f10.5,i5)') "+dist.restr ",
+     &     nhpb,ihpb(nhpb),jhpb(nhpb),ibecarb(nhpb),dhpb(nhpb),
+     &     dhpb1(nhpb),forcon(nhpb),fordepth(nhpb),irestr_type(nhpb)
+#endif
+          if (ibecarb(nhpb).gt.0) then
+            ihpb(nhpb)=ihpb(nhpb)+nres
+            jhpb(nhpb)=jhpb(nhpb)+nres
           endif
-          if (dhpb(nhpb).eq.0.0d0) 
+        else if (constr_dist.eq.10) then
+c Cross-lonk Markov-like potential
+          call card_concat(controlcard)
+          call readi(controlcard,"ILINK",ihpb(nhpb+1),0)
+          call readi(controlcard,"JLINK",jhpb(nhpb+1),0)
+          ibecarb(nhpb+1)=0
+          if (index(controlcard,"BETA").gt.0) ibecarb(nhpb+1)=1
+          if (ihpb(nhpb+1).eq.0 .or. jhpb(nhpb+1).eq.0) cycle
+          if (index(controlcard,"ZL").gt.0) then
+            link_type=1
+          else if (index(controlcard,"ADH").gt.0) then
+            link_type=2
+          else if (index(controlcard,"PDH").gt.0) then
+            link_type=3
+          else if (index(controlcard,"DSS").gt.0) then
+            link_type=4
+          else
+            link_type=0
+          endif
+          call reada(controlcard,"AXLINK",dhpb(nhpb+1),
+     &       xlink(1,link_type))
+          call reada(controlcard,"BXLINK",dhpb1(nhpb+1),
+     &       xlink(2,link_type))
+          call reada(controlcard,"CXLINK",fordepth(nhpb+1),
+     &       xlink(3,link_type))
+          call reada(controlcard,"SIGMA",forcon(nhpb+1),
+     &       xlink(4,link_type))
+          call reada(controlcard,"SCORE",xlscore(nhpb+1),1.0d0)
+c          read (inp,*) ihpb(nhpb+1),jhpb(nhpb+1),ibecarb(nhpb+1),
+c     &      dhpb(nhpb+1),dhpb1(nhpb+1),forcon(nhpb+1),fordepth(nhpb+1)
+          if (forcon(nhpb+1).le.0.0d0 .or. 
+     &       (dhpb(nhpb+1).eq.0 .and. dhpb1(nhpb+1).eq.0)) cycle
+          nhpb=nhpb+1
+          irestr_type(nhpb)=10
+          if (ibecarb(nhpb).gt.0) then
+            ihpb(nhpb)=ihpb(nhpb)+nres
+            jhpb(nhpb)=jhpb(nhpb)+nres
+          endif
+#ifdef MPI
+          if (.not.out1file .or. me.eq.king)
+     &    write (iout,'(a,4i5,2f8.2,3f10.5,i5)') "+dist.restr ",
+     &     nhpb,ihpb(nhpb),jhpb(nhpb),ibecarb(nhpb),dhpb(nhpb),
+     &     dhpb1(nhpb),forcon(nhpb),fordepth(nhpb),xlscore(nhpb),
+     &     irestr_type(nhpb)
+#else
+          write (iout,'(a,4i5,2f8.2,3f10.5,i5)') "+dist.restr ",
+     &     nhpb,ihpb(nhpb),jhpb(nhpb),ibecarb(nhpb),dhpb(nhpb),
+     &     dhpb1(nhpb),forcon(nhpb),fordepth(nhpb),xlscore(nhpb),
+     &     irestr_type(nhpb)
+#endif
+        else
+C        print *,"in else"
+          read (inp,*) ihpb(nhpb+1),jhpb(nhpb+1),dhpb(nhpb+1),
+     &     dhpb1(nhpb+1),ibecarb(nhpb+1),forcon(nhpb+1)
+          if (forcon(nhpb+1).gt.0.0d0) then
+          nhpb=nhpb+1
+          if (dhpb1(nhpb).eq.0.0d0) then
+            irestr_type(nhpb)=1
+          else
+            irestr_type(nhpb)=2
+          endif
+          if (ibecarb(nhpb).gt.0) then
+            ihpb(nhpb)=ihpb(nhpb)+nres
+            jhpb(nhpb)=jhpb(nhpb)+nres
+          endif
+          if (dhpb(nhpb).eq.0.0d0)
      &       dhpb(nhpb)=dist(ihpb(nhpb),jhpb(nhpb))
         endif
-      enddo
 #ifdef MPI
-      if (.not.out1file .or. me.eq.king) then
+          if (.not.out1file .or. me.eq.king)
+     &    write (iout,'(a,4i5,f8.2,f10.1)') "+dist.restr ",
+     &     nhpb,ihpb(nhpb),jhpb(nhpb),ibecarb(i),dhpb(nhpb),forcon(nhpb)
+#else
+          write (iout,'(a,4i5,f8.2,f10.1)') "+dist.restr ",
+     &     nhpb,ihpb(nhpb),jhpb(nhpb),ibecarb(i),dhpb(nhpb),forcon(nhpb)
 #endif
-      do i=1,nhpb
-          write (iout,'(a,3i5,2f8.2,i2,f10.1)') "+dist.constr ",
-     &     i,ihpb(i),jhpb(i),dhpb(i),dhpb1(i),ibecarb(i),forcon(i)
+        endif
+C        read (inp,*) ihpb(nhpb+1),jhpb(nhpb+1),forcon(nhpb+1)
+C        if (forcon(nhpb+1).gt.0.0d0) then
+C          nhpb=nhpb+1
+C          dhpb(nhpb)=dist(ihpb(nhpb),jhpb(nhpb))
       enddo
-      call flush(iout)
+
+      ENDDO ! next
+
+      fordepthmax=0.0d0
+      if (normalize) then
+        do i=nss+1,nhpb
+          if (irestr_type(i).eq.11.and.fordepth(i).gt.fordepthmax) 
+     &      fordepthmax=fordepth(i)
+        enddo
+        do i=nss+1,nhpb
+          if (irestr_type(i).eq.11) fordepth(i)=fordepth(i)/fordepthmax
+        enddo
+      endif
+      return
+      end
+c-------------------------------------------------------------------------------
+
+      subroutine read_constr_homology
+
+      include 'DIMENSIONS'
 #ifdef MPI
+      include 'mpif.h'
+#endif
+      include 'COMMON.SETUP'
+      include 'COMMON.CONTROL'
+      include 'COMMON.CHAIN'
+      include 'COMMON.IOUNITS'
+      include 'COMMON.MD'
+      include 'COMMON.GEO'
+      include 'COMMON.INTERACT'
+      include 'COMMON.NAMES'
+c
+c For new homol impl
+c
+      include 'COMMON.VAR'
+c
+
+c     double precision odl_temp,sigma_odl_temp,waga_theta,waga_d,
+c    &                 dist_cut
+c     common /przechowalnia/ odl_temp(maxres,maxres,max_template),
+c    &    sigma_odl_temp(maxres,maxres,max_template)
+      character*2 kic2
+      character*24 model_ki_dist, model_ki_angle
+      character*500 controlcard
+      integer ki, i, j, k, l, ii_in_use(maxdim),i_tmp,idomain_tmp
+      logical lprn /.true./
+      integer ilen
+      external ilen
+      logical liiflag
+c
+c     FP - Nov. 2014 Temporary specifications for new vars
+c
+      double precision rescore_tmp,x12,y12,z12,rescore2_tmp
+      double precision, dimension (max_template,maxres) :: rescore
+      double precision, dimension (max_template,maxres) :: rescore2
+      character*24 pdbfile,tpl_k_rescore
+c -----------------------------------------------------------------
+c Reading multiple PDB ref structures and calculation of retraints
+c not using pre-computed ones stored in files model_ki_{dist,angle}
+c FP (Nov., 2014)
+c -----------------------------------------------------------------
+c
+c
+c Alternative: reading from input
+      call card_concat(controlcard)
+      call reada(controlcard,"HOMOL_DIST",waga_dist,1.0d0)
+      call reada(controlcard,"HOMOL_ANGLE",waga_angle,1.0d0)
+      call reada(controlcard,"HOMOL_THETA",waga_theta,1.0d0) ! new
+      call reada(controlcard,"HOMOL_SCD",waga_d,1.0d0) ! new
+      call reada(controlcard,'DIST_CUT',dist_cut,5.0d0) ! for diff ways of calc sigma
+      call reada(controlcard,'DIST2_CUT',dist2_cut,9999.0d0)
+      call readi(controlcard,"HOMOL_NSET",homol_nset,1)       
+      read2sigma=(index(controlcard,'READ2SIGMA').gt.0)
+      start_from_model=(index(controlcard,'START_FROM_MODELS').gt.0)
+      if(.not.read2sigma.and.start_from_model) then
+          write(iout,*) 'START_FROM_MODELS works only with READ2SIGMA'
+          start_from_model=.false.
+      endif
+      if(start_from_model) write(iout,*) 'START_FROM_MODELS is ON'
+      if(start_from_model .and. rest) then 
+        write(iout,*) 'START_FROM_MODELS is OFF'
+        write(iout,*) 'remove restart keyword from input'
+      endif
+      if (homol_nset.gt.1)then
+         call card_concat(controlcard)
+         read(controlcard,*) (waga_homology(i),i=1,homol_nset) 
+         if(me.eq.king .or. .not. out1file .and. fg_rank.eq.0) then
+          write(iout,*) "iset homology_weight "
+          do i=1,homol_nset
+           write(iout,*) i,waga_homology(i)
+          enddo
+         endif
+         iset=mod(kolor,homol_nset)+1
+      else
+       iset=1
+       waga_homology(1)=1.0
+      endif
+
+cd      write (iout,*) "nnt",nnt," nct",nct
+cd      call flush(iout)
+
+
+      lim_odl=0
+      lim_dih=0
+c
+      write(iout,*) 'nnt=',nnt,'nct=',nct
+c
+      do i = nnt,nct
+        do k=1,constr_homology
+         idomain(k,i)=0
+        enddo
+      enddo
+
+      ii=0
+      do i = nnt,nct-2 
+        do j=i+2,nct 
+        ii=ii+1
+        ii_in_use(ii)=0
+        enddo
+      enddo
+
+      if (read_homol_frag) then
+        call read_klapaucjusz
+      else
+
+      do k=1,constr_homology
+
+        read(inp,'(a)') pdbfile
+c  Next stament causes error upon compilation (?)
+c       if(me.eq.king.or. .not. out1file)
+c         write (iout,'(2a)') 'PDB data will be read from file ',
+c    &   pdbfile(:ilen(pdbfile))
+         write (iout,'(a,5x,a)') 'HOMOL: Opening PDB file',
+     &  pdbfile(:ilen(pdbfile))
+        open(ipdbin,file=pdbfile,status='old',err=33)
+        goto 34
+  33    write (iout,'(a,5x,a)') 'Error opening PDB file',
+     &  pdbfile(:ilen(pdbfile))
+        stop
+  34    continue
+c        print *,'Begin reading pdb data'
+c
+c Files containing res sim or local scores (former containing sigmas)
+c
+
+        write(kic2,'(bz,i2.2)') k
+
+        tpl_k_rescore="template"//kic2//".sco"
+
+        unres_pdb=.false.
+        if (read2sigma) then
+          call readpdb_template(k)
+        else
+          call readpdb
+        endif
+c
+c     Distance restraints
+c
+c          ... --> odl(k,ii)
+C Copy the coordinates from reference coordinates (?)
+        do i=1,2*nres
+          do j=1,3
+            c(j,i)=cref(j,i)
+c           write (iout,*) "c(",j,i,") =",c(j,i)
+          enddo
+        enddo
+c
+c From read_dist_constr (commented out 25/11/2014 <-> res sim)
+c
+c         write(iout,*) "tpl_k_rescore - ",tpl_k_rescore
+          open (ientin,file=tpl_k_rescore,status='old')
+          if (nnt.gt.1) rescore(k,1)=0.0d0
+          do irec=nnt,nct ! loop for reading res sim 
+            if (read2sigma) then
+             read (ientin,*,end=1401) i_tmp,rescore2_tmp,rescore_tmp,
+     &                                idomain_tmp
+             i_tmp=i_tmp+nnt-1
+             idomain(k,i_tmp)=idomain_tmp
+             rescore(k,i_tmp)=rescore_tmp
+             rescore2(k,i_tmp)=rescore2_tmp
+             write(iout,'(a7,i5,2f10.5,i5)') "rescore",
+     &                      i_tmp,rescore2_tmp,rescore_tmp,
+     &                                idomain_tmp
+            else
+             idomain(k,irec)=1
+             read (ientin,*,end=1401) rescore_tmp
+
+c           rescore(k,irec)=rescore_tmp+1.0d0 ! to avoid 0 values
+             rescore(k,irec)=0.5d0*(rescore_tmp+0.5d0) ! alt transf to reduce scores
+c           write(iout,*) "rescore(",k,irec,") =",rescore(k,irec)
+            endif
+          enddo  
+ 1401   continue
+        close (ientin)        
+        if (waga_dist.ne.0.0d0) then
+          ii=0
+          do i = nnt,nct-2 
+            do j=i+2,nct 
+
+              x12=c(1,i)-c(1,j)
+              y12=c(2,i)-c(2,j)
+              z12=c(3,i)-c(3,j)
+              distal=dsqrt(x12*x12+y12*y12+z12*z12) 
+c              write (iout,*) k,i,j,distal,dist2_cut
+
+            if (idomain(k,i).eq.idomain(k,j).and.idomain(k,i).ne.0
+     &            .and. distal.le.dist2_cut ) then
+
+              ii=ii+1
+              ii_in_use(ii)=1
+              l_homo(k,ii)=.true.
+
+c             write (iout,*) "k",k
+c             write (iout,*) "i",i," j",j," constr_homology",
+c    &                       constr_homology
+              ires_homo(ii)=i
+              jres_homo(ii)=j
+              odl(k,ii)=distal
+              if (read2sigma) then
+                sigma_odl(k,ii)=0
+                do ik=i,j
+                 sigma_odl(k,ii)=sigma_odl(k,ii)+rescore2(k,ik)
+                enddo
+                sigma_odl(k,ii)=sigma_odl(k,ii)/(j-i+1)
+                if (odl(k,ii).gt.dist_cut) sigma_odl(k,ii) = 
+     &        sigma_odl(k,ii)*dexp(0.5d0*(odl(k,ii)/dist_cut)**2-0.5d0)
+              else
+                if (odl(k,ii).le.dist_cut) then
+                 sigma_odl(k,ii)=rescore(k,i)+rescore(k,j) 
+                else
+#ifdef OLDSIGMA
+                 sigma_odl(k,ii)=(rescore(k,i)+rescore(k,j))* 
+     &                      dexp(0.5d0*(odl(k,ii)/dist_cut)**2)
+#else
+                 sigma_odl(k,ii)=(rescore(k,i)+rescore(k,j))* 
+     &                      dexp(0.5d0*(odl(k,ii)/dist_cut)**2-0.5d0)
+#endif
+                endif
+              endif
+              sigma_odl(k,ii)=1.0d0/(sigma_odl(k,ii)*sigma_odl(k,ii)) 
+            else
+              ii=ii+1
+              l_homo(k,ii)=.false.
+            endif
+            enddo
+          enddo
+        lim_odl=ii
+        endif
+c
+c     Theta, dihedral and SC retraints
+c
+        if (waga_angle.gt.0.0d0) then
+c         open (ientin,file=tpl_k_sigma_dih,status='old')
+c         do irec=1,maxres-3 ! loop for reading sigma_dih
+c            read (ientin,*,end=1402) i,j,ki,l,sigma_dih(k,i+nnt-1) ! j,ki,l what for?
+c            if (i+nnt-1.gt.lim_dih) lim_dih=i+nnt-1 ! right?
+c            sigma_dih(k,i+nnt-1)=sigma_dih(k,i+nnt-1)* ! not inverse because of use of res. similarity
+c    &                            sigma_dih(k,i+nnt-1)
+c         enddo
+c1402   continue
+c         close (ientin)
+          do i = nnt+3,nct 
+            if (idomain(k,i).eq.0) then 
+               sigma_dih(k,i)=0.0
+               cycle
+            endif
+            dih(k,i)=phiref(i) ! right?
+c           read (ientin,*) sigma_dih(k,i) ! original variant
+c             write (iout,*) "dih(",k,i,") =",dih(k,i)
+c             write(iout,*) "rescore(",k,i,") =",rescore(k,i),
+c    &                      "rescore(",k,i-1,") =",rescore(k,i-1),
+c    &                      "rescore(",k,i-2,") =",rescore(k,i-2),
+c    &                      "rescore(",k,i-3,") =",rescore(k,i-3)
+
+            sigma_dih(k,i)=(rescore(k,i)+rescore(k,i-1)+
+     &                     rescore(k,i-2)+rescore(k,i-3))/4.0
+c            if (read2sigma) sigma_dih(k,i)=sigma_dih(k,i)/4.0
+c           write (iout,*) "Raw sigmas for dihedral angle restraints"
+c           write (iout,'(i5,10(2f8.2,4x))') i,sigma_dih(k,i)
+c           sigma_dih(k,i)=hmscore(k)*rescore(k,i)*rescore(k,i-1)*
+c                          rescore(k,i-2)*rescore(k,i-3)  !  right expression ?
+c   Instead of res sim other local measure of b/b str reliability possible
+            if (sigma_dih(k,i).ne.0)
+     &       sigma_dih(k,i)=1.0d0/(sigma_dih(k,i)*sigma_dih(k,i))
+c           sigma_dih(k,i)=sigma_dih(k,i)*sigma_dih(k,i)
+          enddo
+          lim_dih=nct-nnt-2 
+        endif
+
+        if (waga_theta.gt.0.0d0) then
+c         open (ientin,file=tpl_k_sigma_theta,status='old')
+c         do irec=1,maxres-2 ! loop for reading sigma_theta, right bounds?
+c            read (ientin,*,end=1403) i,j,ki,sigma_theta(k,i+nnt-1) ! j,ki what for?
+c            sigma_theta(k,i+nnt-1)=sigma_theta(k,i+nnt-1)* ! not inverse because of use of res. similarity
+c    &                              sigma_theta(k,i+nnt-1)
+c         enddo
+c1403   continue
+c         close (ientin)
+
+          do i = nnt+2,nct ! right? without parallel.
+c         do i = i=1,nres ! alternative for bounds acc to readpdb?
+c         do i=ithet_start,ithet_end ! with FG parallel.
+             if (idomain(k,i).eq.0) then  
+              sigma_theta(k,i)=0.0
+              cycle
+             endif
+             thetatpl(k,i)=thetaref(i)
+c            write (iout,*) "thetatpl(",k,i,") =",thetatpl(k,i)
+c            write(iout,*)  "rescore(",k,i,") =",rescore(k,i),
+c    &                      "rescore(",k,i-1,") =",rescore(k,i-1),
+c    &                      "rescore(",k,i-2,") =",rescore(k,i-2)
+c            read (ientin,*) sigma_theta(k,i) ! 1st variant
+             sigma_theta(k,i)=(rescore(k,i)+rescore(k,i-1)+
+     &                        rescore(k,i-2))/3.0
+c             if (read2sigma) sigma_theta(k,i)=sigma_theta(k,i)/3.0
+             if (sigma_theta(k,i).ne.0)
+     &       sigma_theta(k,i)=1.0d0/(sigma_theta(k,i)*sigma_theta(k,i))
+
+c            sigma_theta(k,i)=hmscore(k)*rescore(k,i)*rescore(k,i-1)*
+c                             rescore(k,i-2) !  right expression ?
+c            sigma_theta(k,i)=sigma_theta(k,i)*sigma_theta(k,i)
+          enddo
+        endif
+
+        if (waga_d.gt.0.0d0) then
+c       open (ientin,file=tpl_k_sigma_d,status='old')
+c         do irec=1,maxres-1 ! loop for reading sigma_theta, right bounds?
+c            read (ientin,*,end=1404) i,j,sigma_d(k,i+nnt-1) ! j,ki what for?
+c            sigma_d(k,i+nnt-1)=sigma_d(k,i+nnt-1)* ! not inverse because of use of res. similarity
+c    &                          sigma_d(k,i+nnt-1)
+c         enddo
+c1404   continue
+
+          do i = nnt,nct ! right? without parallel.
+c         do i=2,nres-1 ! alternative for bounds acc to readpdb?
+c         do i=loc_start,loc_end ! with FG parallel.
+               if (itype(i).eq.10) cycle 
+               if (idomain(k,i).eq.0 ) then 
+                  sigma_d(k,i)=0.0
+                  cycle
+               endif
+               xxtpl(k,i)=xxref(i)
+               yytpl(k,i)=yyref(i)
+               zztpl(k,i)=zzref(i)
+c              write (iout,*) "xxtpl(",k,i,") =",xxtpl(k,i)
+c              write (iout,*) "yytpl(",k,i,") =",yytpl(k,i)
+c              write (iout,*) "zztpl(",k,i,") =",zztpl(k,i)
+c              write(iout,*)  "rescore(",k,i,") =",rescore(k,i)
+               sigma_d(k,i)=rescore(k,i) !  right expression ?
+               if (sigma_d(k,i).ne.0)
+     &          sigma_d(k,i)=1.0d0/(sigma_d(k,i)*sigma_d(k,i))
+
+c              sigma_d(k,i)=hmscore(k)*rescore(k,i) !  right expression ?
+c              sigma_d(k,i)=sigma_d(k,i)*sigma_d(k,i)
+c              read (ientin,*) sigma_d(k,i) ! 1st variant
+               if (i-nnt+1.gt.lim_xx) lim_xx=i-nnt+1 ! right?
+          enddo
+        endif
+      enddo
+c
+c remove distance restraints not used in any model from the list
+c shift data in all arrays
+c
+      if (waga_dist.ne.0.0d0) then
+        ii=0
+        liiflag=.true.
+        do i=nnt,nct-2 
+         do j=i+2,nct 
+          ii=ii+1
+          if (ii_in_use(ii).eq.0.and.liiflag) then
+            liiflag=.false.
+            iistart=ii
+          endif
+          if (ii_in_use(ii).ne.0.and..not.liiflag.or.
+     &                   .not.liiflag.and.ii.eq.lim_odl) then
+             if (ii.eq.lim_odl) then
+              iishift=ii-iistart+1
+             else
+              iishift=ii-iistart
+             endif
+             liiflag=.true.
+             do ki=iistart,lim_odl-iishift
+              ires_homo(ki)=ires_homo(ki+iishift)
+              jres_homo(ki)=jres_homo(ki+iishift)
+              ii_in_use(ki)=ii_in_use(ki+iishift)
+              do k=1,constr_homology
+               odl(k,ki)=odl(k,ki+iishift)
+               sigma_odl(k,ki)=sigma_odl(k,ki+iishift)
+               l_homo(k,ki)=l_homo(k,ki+iishift)
+              enddo
+             enddo
+             ii=ii-iishift
+             lim_odl=lim_odl-iishift
+          endif
+         enddo
+        enddo
+      endif
+
+      endif ! .not. klapaucjusz
+
+      if (constr_homology.gt.0) call homology_partition
+      if (constr_homology.gt.0) call init_int_table
+cd      write (iout,*) "homology_partition: lim_theta= ",lim_theta,
+cd     & "lim_xx=",lim_xx
+c     write (iout,*) "ithet_start =",ithet_start,"ithet_end =",ithet_end
+c     write (iout,*) "loc_start =",loc_start,"loc_end =",loc_end
+c
+c Print restraints
+c
+      if (.not.lprn) return
+cd      write(iout,*) "waga_theta",waga_theta,"waga_d",waga_d
+      if(me.eq.king .or. .not. out1file .and. fg_rank.eq.0) then
+       write (iout,*) "Distance restraints from templates"
+       do ii=1,lim_odl
+       write(iout,'(3i5,100(2f8.2,1x,l1,4x))') 
+     &  ii,ires_homo(ii),jres_homo(ii),
+     &  (odl(ki,ii),1.0d0/dsqrt(sigma_odl(ki,ii)),l_homo(ki,ii),
+     &  ki=1,constr_homology)
+       enddo
+       write (iout,*) "Dihedral angle restraints from templates"
+       do i=nnt+3,nct
+        write (iout,'(i5,a4,100(2f8.2,4x))') i,restyp(itype(i)),
+     &      (rad2deg*dih(ki,i),
+     &      rad2deg/dsqrt(sigma_dih(ki,i)),ki=1,constr_homology)
+       enddo
+       write (iout,*) "Virtual-bond angle restraints from templates"
+       do i=nnt+2,nct
+        write (iout,'(i5,a4,100(2f8.2,4x))') i,restyp(itype(i)),
+     &      (rad2deg*thetatpl(ki,i),
+     &      rad2deg/dsqrt(sigma_theta(ki,i)),ki=1,constr_homology)
+       enddo
+       write (iout,*) "SC restraints from templates"
+       do i=nnt,nct
+        write(iout,'(i5,100(4f8.2,4x))') i,
+     &  (xxtpl(ki,i),yytpl(ki,i),zztpl(ki,i),
+     &   1.0d0/dsqrt(sigma_d(ki,i)),ki=1,constr_homology)
+       enddo
       endif
+c -----------------------------------------------------------------
+      return
+      end
+c -----------------------------------------------------------------
+      subroutine read_klapaucjusz
+
+      include 'DIMENSIONS'
+#ifdef MPI
+      include 'mpif.h'
 #endif
+      include 'COMMON.SETUP'
+      include 'COMMON.CONTROL'
+      include 'COMMON.CHAIN'
+      include 'COMMON.IOUNITS'
+      include 'COMMON.MD'
+      include 'COMMON.GEO'
+      include 'COMMON.INTERACT'
+      include 'COMMON.NAMES'
+      character*256 fragfile
+      integer ninclust(maxclust),inclust(max_template,maxclust),
+     &  nresclust(maxclust),iresclust(maxres,maxclust)
+
+      character*2 kic2
+      character*24 model_ki_dist, model_ki_angle
+      character*500 controlcard
+      integer ki, i, j, k, l, ii_in_use(maxdim),i_tmp,idomain_tmp
+      logical lprn /.true./
+      integer ilen
+      external ilen
+      logical liiflag
+c
+c
+      double precision rescore_tmp,x12,y12,z12,rescore2_tmp
+      double precision, dimension (max_template,maxres) :: rescore
+      double precision, dimension (max_template,maxres) :: rescore2
+      character*24 pdbfile,tpl_k_rescore
+
+c
+c For new homol impl
+c
+      include 'COMMON.VAR'
+c
+      call getenv("FRAGFILE",fragfile) 
+      open(ientin,file=fragfile,status="old",err=10)
+      read(ientin,*) constr_homology,nclust
+      l_homo = .false.
+      sigma_theta=0.0
+      sigma_d=0.0
+      sigma_dih=0.0
+c Read pdb files 
+      do k=1,constr_homology 
+        read(ientin,'(a)') pdbfile
+        write (iout,'(a,5x,a)') 'KLAPAUCJUSZ: Opening PDB file',
+     &  pdbfile(:ilen(pdbfile))
+        open(ipdbin,file=pdbfile,status='old',err=33)
+        goto 34
+  33    write (iout,'(a,5x,a)') 'Error opening PDB file',
+     &  pdbfile(:ilen(pdbfile))
+        stop
+  34    continue
+        unres_pdb=.false.
+        call readpdb_template(k)
+        do i=1,nres
+          rescore(k,i)=0.2d0
+          rescore2(k,i)=1.0d0
+        enddo
+      enddo
+c Read clusters
+      do i=1,nclust
+        read(ientin,*) ninclust(i),nresclust(i)
+        read(ientin,*) (inclust(k,i),k=1,ninclust(i))
+        read(ientin,*) (iresclust(k,i),k=1,nresclust(i))
+      enddo
+c
+c Loop over clusters
+c
+      do l=1,nclust
+        do ll = 1,ninclust(l)
+        
+        k = inclust(ll,l)
+        do i=1,nres
+          idomain(k,i)=0
+        enddo
+        do i=1,nresclust(l)
+          if (nnt.gt.1)  then
+            idomain(k,iresclust(i,l)+1) = 1
+          else
+            idomain(k,iresclust(i,l)) = 1
+          endif
+        enddo
+c
+c     Distance restraints
+c
+c          ... --> odl(k,ii)
+C Copy the coordinates from reference coordinates (?)
+        do i=1,2*nres
+          do j=1,3
+            c(j,i)=chomo(j,i,k)
+c           write (iout,*) "c(",j,i,") =",c(j,i)
+          enddo
+        enddo
+        call int_from_cart(.true.,.false.)
+        call sc_loc_geom(.false.)
+        do i=1,nres
+          thetaref(i)=theta(i)
+          phiref(i)=phi(i)
+        enddo
+        if (waga_dist.ne.0.0d0) then
+          ii=0
+          do i = nnt,nct-2 
+            do j=i+2,nct 
+
+              x12=c(1,i)-c(1,j)
+              y12=c(2,i)-c(2,j)
+              z12=c(3,i)-c(3,j)
+              distal=dsqrt(x12*x12+y12*y12+z12*z12) 
+c              write (iout,*) k,i,j,distal,dist2_cut
+
+            if (idomain(k,i).eq.idomain(k,j).and.idomain(k,i).ne.0
+     &            .and. distal.le.dist2_cut ) then
+
+              ii=ii+1
+              ii_in_use(ii)=1
+              l_homo(k,ii)=.true.
+
+c             write (iout,*) "k",k
+c             write (iout,*) "i",i," j",j," constr_homology",
+c    &                       constr_homology
+              ires_homo(ii)=i
+              jres_homo(ii)=j
+              odl(k,ii)=distal
+              if (read2sigma) then
+                sigma_odl(k,ii)=0
+                do ik=i,j
+                 sigma_odl(k,ii)=sigma_odl(k,ii)+rescore2(k,ik)
+                enddo
+                sigma_odl(k,ii)=sigma_odl(k,ii)/(j-i+1)
+                if (odl(k,ii).gt.dist_cut) sigma_odl(k,ii) = 
+     &        sigma_odl(k,ii)*dexp(0.5d0*(odl(k,ii)/dist_cut)**2-0.5d0)
+              else
+                if (odl(k,ii).le.dist_cut) then
+                 sigma_odl(k,ii)=rescore(k,i)+rescore(k,j) 
+                else
+#ifdef OLDSIGMA
+                 sigma_odl(k,ii)=(rescore(k,i)+rescore(k,j))* 
+     &                      dexp(0.5d0*(odl(k,ii)/dist_cut)**2)
+#else
+                 sigma_odl(k,ii)=(rescore(k,i)+rescore(k,j))* 
+     &                      dexp(0.5d0*(odl(k,ii)/dist_cut)**2-0.5d0)
+#endif
+                endif
+              endif
+              sigma_odl(k,ii)=1.0d0/(sigma_odl(k,ii)*sigma_odl(k,ii)) 
+            else
+              ii=ii+1
+c              l_homo(k,ii)=.false.
+            endif
+            enddo
+          enddo
+        lim_odl=ii
+        endif
+c
+c     Theta, dihedral and SC retraints
+c
+        if (waga_angle.gt.0.0d0) then
+          do i = nnt+3,nct 
+            if (idomain(k,i).eq.0) then 
+c               sigma_dih(k,i)=0.0
+               cycle
+            endif
+            dih(k,i)=phiref(i)
+            sigma_dih(k,i)=(rescore(k,i)+rescore(k,i-1)+
+     &                     rescore(k,i-2)+rescore(k,i-3))/4.0
+c            write (iout,*) "k",k," l",l," i",i," rescore",rescore(k,i),
+c     &       " sigma_dihed",sigma_dih(k,i)
+            if (sigma_dih(k,i).ne.0)
+     &       sigma_dih(k,i)=1.0d0/(sigma_dih(k,i)*sigma_dih(k,i))
+          enddo
+          lim_dih=nct-nnt-2 
+        endif
+
+        if (waga_theta.gt.0.0d0) then
+          do i = nnt+2,nct
+             if (idomain(k,i).eq.0) then  
+c              sigma_theta(k,i)=0.0
+              cycle
+             endif
+             thetatpl(k,i)=thetaref(i)
+             sigma_theta(k,i)=(rescore(k,i)+rescore(k,i-1)+
+     &                        rescore(k,i-2))/3.0
+             if (sigma_theta(k,i).ne.0)
+     &       sigma_theta(k,i)=1.0d0/(sigma_theta(k,i)*sigma_theta(k,i))
+          enddo
+        endif
+
+        if (waga_d.gt.0.0d0) then
+          do i = nnt,nct
+               if (itype(i).eq.10) cycle 
+               if (idomain(k,i).eq.0 ) then 
+c                  sigma_d(k,i)=0.0
+                  cycle
+               endif
+               xxtpl(k,i)=xxref(i)
+               yytpl(k,i)=yyref(i)
+               zztpl(k,i)=zzref(i)
+               sigma_d(k,i)=rescore(k,i)
+               if (sigma_d(k,i).ne.0)
+     &          sigma_d(k,i)=1.0d0/(sigma_d(k,i)*sigma_d(k,i))
+               if (i-nnt+1.gt.lim_xx) lim_xx=i-nnt+1
+          enddo
+        endif
+      enddo ! l
+      enddo ! ll
+c
+c remove distance restraints not used in any model from the list
+c shift data in all arrays
+c
+      if (waga_dist.ne.0.0d0) then
+        ii=0
+        liiflag=.true.
+        do i=nnt,nct-2 
+         do j=i+2,nct 
+          ii=ii+1
+          if (ii_in_use(ii).eq.0.and.liiflag) then
+            liiflag=.false.
+            iistart=ii
+          endif
+          if (ii_in_use(ii).ne.0.and..not.liiflag.or.
+     &                   .not.liiflag.and.ii.eq.lim_odl) then
+             if (ii.eq.lim_odl) then
+              iishift=ii-iistart+1
+             else
+              iishift=ii-iistart
+             endif
+             liiflag=.true.
+             do ki=iistart,lim_odl-iishift
+              ires_homo(ki)=ires_homo(ki+iishift)
+              jres_homo(ki)=jres_homo(ki+iishift)
+              ii_in_use(ki)=ii_in_use(ki+iishift)
+              do k=1,constr_homology
+               odl(k,ki)=odl(k,ki+iishift)
+               sigma_odl(k,ki)=sigma_odl(k,ki+iishift)
+               l_homo(k,ki)=l_homo(k,ki+iishift)
+              enddo
+             enddo
+             ii=ii-iishift
+             lim_odl=lim_odl-iishift
+          endif
+         enddo
+        enddo
+      endif
+
       return
+   10 stop "Error infragment file"
       end
-c-------------------------------------------------------------------------------
+c----------------------------------------------------------------------
+
 #ifdef WINIFL
       subroutine flush(iu)
       return
@@ -2527,6 +3530,7 @@ c-------------------------------------------------------------------------------
       return
       end
 #endif
+
 c------------------------------------------------------------------------------
       subroutine copy_to_tmp(source)
       include "DIMENSIONS"