Fixed eello5, eello6, eturn6, and shortrange RESPA
[unres.git] / source / unres / src_MD-M / energy_p_new-sep_barrier.F
index 7d2d27f..1c6470d 100644 (file)
@@ -1,4 +1,33 @@
 C-----------------------------------------------------------------------
+      double precision function sscalelip(r)
+      double precision r,gamm
+      include "COMMON.SPLITELE"
+C      if(r.lt.r_cut-rlamb) then
+C        sscale=1.0d0
+C      else if(r.le.r_cut.and.r.ge.r_cut-rlamb) then
+C        gamm=(r-(r_cut-rlamb))/rlamb
+        sscalelip=1.0d0+r*r*(2*r-3.0d0)
+C      else
+C        sscale=0d0
+C      endif
+      return
+      end
+C-----------------------------------------------------------------------
+      double precision function sscagradlip(r)
+      double precision r,gamm
+      include "COMMON.SPLITELE"
+C     if(r.lt.r_cut-rlamb) then
+C        sscagrad=0.0d0
+C      else if(r.le.r_cut.and.r.ge.r_cut-rlamb) then
+C        gamm=(r-(r_cut-rlamb))/rlamb
+        sscagradlip=r*(6*r-6.0d0)
+C      else
+C        sscagrad=0.0d0
+C      endif
+      return
+      end
+
+C-----------------------------------------------------------------------
       double precision function sscale(r)
       double precision r,gamm
       include "COMMON.SPLITELE"
@@ -75,8 +104,8 @@ cd   &                  'iend=',iend(i,iint)
               rrij=1.0D0/rij
               eps0ij=eps(itypi,itypj)
               fac=rrij**expon2
-              e1=fac*fac*aa(itypi,itypj)
-              e2=fac*bb(itypi,itypj)
+              e1=fac*fac*aa
+              e2=fac*bb
               evdwij=e1+e2
               evdw=evdw+(1.0d0-sss)*evdwij
 C 
@@ -164,8 +193,8 @@ C Change 12/1/95 to calculate four-body interactions
               rrij=1.0D0/rij
               eps0ij=eps(itypi,itypj)
               fac=rrij**expon2
-              e1=fac*fac*aa(itypi,itypj)
-              e2=fac*bb(itypi,itypj)
+              e1=fac*fac*aa
+              e2=fac*bb
               evdwij=e1+e2
               evdw=evdw+sss*evdwij
 C 
@@ -248,8 +277,8 @@ C
             if (sss.lt.1.0d0) then
               r_shift_inv=1.0D0/(rij+r0(itypi,itypj)-sigma(itypi,itypj))
               fac=r_shift_inv**expon
-              e1=fac*fac*aa(itypi,itypj)
-              e2=fac*bb(itypi,itypj)
+              e1=fac*fac*aa
+              e2=fac*bb
               evdwij=e_augm+e1+e2
 cd            sigm=dabs(aa(itypi,itypj)/bb(itypi,itypj))**(1.0D0/6.0D0)
 cd            epsi=bb(itypi,itypj)**2/aa(itypi,itypj)
@@ -331,8 +360,8 @@ C
             if (sss.gt.0.0d0) then
               r_shift_inv=1.0D0/(rij+r0(itypi,itypj)-sigma(itypi,itypj))
               fac=r_shift_inv**expon
-              e1=fac*fac*aa(itypi,itypj)
-              e2=fac*bb(itypi,itypj)
+              e1=fac*fac*aa
+              e2=fac*bb
               evdwij=e_augm+e1+e2
 cd            sigm=dabs(aa(itypi,itypj)/bb(itypi,itypj))**(1.0D0/6.0D0)
 cd            epsi=bb(itypi,itypj)**2/aa(itypi,itypj)
@@ -445,16 +474,16 @@ C Calculate the angle-dependent terms of energy & contributions to derivatives.
 C Calculate whole angle-dependent part of epsilon and contributions
 C to its derivatives
               fac=(rrij*sigsq)**expon2
-              e1=fac*fac*aa(itypi,itypj)
-              e2=fac*bb(itypi,itypj)
+              e1=fac*fac*aa
+              e2=fac*bb
               evdwij=eps1*eps2rt*eps3rt*(e1+e2)
               eps2der=evdwij*eps3rt
               eps3der=evdwij*eps2rt
               evdwij=evdwij*eps2rt*eps3rt
               evdw=evdw+evdwij*(1.0d0-sss)
               if (lprn) then
-              sigm=dabs(aa(itypi,itypj)/bb(itypi,itypj))**(1.0D0/6.0D0)
-              epsi=bb(itypi,itypj)**2/aa(itypi,itypj)
+              sigm=dabs(aa/bb)**(1.0D0/6.0D0)
+              epsi=bb**2/aa
 cd              write (iout,'(2(a3,i3,2x),15(0pf7.3))')
 cd     &          restyp(itypi),i,restyp(itypj),j,
 cd     &          epsi,sigm,chi1,chi2,chip1,chip2,
@@ -558,16 +587,16 @@ C Calculate the angle-dependent terms of energy & contributions to derivatives.
 C Calculate whole angle-dependent part of epsilon and contributions
 C to its derivatives
               fac=(rrij*sigsq)**expon2
-              e1=fac*fac*aa(itypi,itypj)
-              e2=fac*bb(itypi,itypj)
+              e1=fac*fac*aa
+              e2=fac*bb
               evdwij=eps1*eps2rt*eps3rt*(e1+e2)
               eps2der=evdwij*eps3rt
               eps3der=evdwij*eps2rt
               evdwij=evdwij*eps2rt*eps3rt
               evdw=evdw+evdwij*sss
               if (lprn) then
-              sigm=dabs(aa(itypi,itypj)/bb(itypi,itypj))**(1.0D0/6.0D0)
-              epsi=bb(itypi,itypj)**2/aa(itypi,itypj)
+              sigm=dabs(aa/bb)**(1.0D0/6.0D0)
+              epsi=bb**2/aa
 cd              write (iout,'(2(a3,i3,2x),15(0pf7.3))')
 cd     &          restyp(itypi),i,restyp(itypj),j,
 cd     &          epsi,sigm,chi1,chi2,chip1,chip2,
@@ -672,6 +701,33 @@ c            write (iout,*) "i",i," j", j," itype",itype(i),itype(j)
           if (yj.lt.0) yj=yj+boxysize
           zj=mod(zj,boxzsize)
           if (zj.lt.0) zj=zj+boxzsize
+       if ((zj.gt.bordlipbot)
+     &.and.(zj.lt.bordliptop)) then
+C the energy transfer exist
+        if (zj.lt.buflipbot) then
+C what fraction I am in
+         fracinbuf=1.0d0-
+     &        ((positi-bordlipbot)/lipbufthick)
+C lipbufthick is thickenes of lipid buffore
+         sslipj=sscalelip(fracinbuf)
+         ssgradlipj=-sscagradlip(fracinbuf)/lipbufthick
+        elseif (zi.gt.bufliptop) then
+         fracinbuf=1.0d0-((bordliptop-positi)/lipbufthick)
+         sslipj=sscalelip(fracinbuf)
+         ssgradlipj=sscagradlip(fracinbuf)/lipbufthick
+        else
+         sslipj=1.0d0
+         ssgradlipj=0.0
+        endif
+       else
+         sslipj=0.0d0
+         ssgradlipj=0.0
+       endif
+      aa=aa_lip(itypi,itypj)*(sslipi+sslipj)/2.0d0
+     &  +aa_aq(itypi,itypj)*(2.0d0-sslipi+sslipj)/2.0d0
+      bb=bb_lip(itypi,itypj)*(sslipi+sslipj)/2.0d0
+     &  +bb_aq(itypi,itypj)*(2.0d0-sslipi+sslipj)/2.0d0
+
       dist_init=(xj-xi)**2+(yj-yi)**2+(zj-zi)**2
       xj_safe=xj
       yj_safe=yj
@@ -732,8 +788,8 @@ cd     &          rij_shift,1.0D0/rij,sig,sig0ij,sigsq,1-dsqrt(sigsq)
 c---------------------------------------------------------------
               rij_shift=1.0D0/rij_shift 
               fac=rij_shift**expon
-              e1=fac*fac*aa(itypi,itypj)
-              e2=fac*bb(itypi,itypj)
+              e1=fac*fac*aa
+              e2=fac*bb
               evdwij=eps1*eps2rt*eps3rt*(e1+e2)
               eps2der=evdwij*eps3rt
               eps3der=evdwij*eps2rt
@@ -742,8 +798,8 @@ c     &        " eps3rt",eps3rt," eps1",eps1," e1",e1," e2",e2
               evdwij=evdwij*eps2rt*eps3rt
               evdw=evdw+evdwij*(1.0d0-sss)
               if (lprn) then
-              sigm=dabs(aa(itypi,itypj)/bb(itypi,itypj))**(1.0D0/6.0D0)
-              epsi=bb(itypi,itypj)**2/aa(itypi,itypj)
+              sigm=dabs(aa/bb)**(1.0D0/6.0D0)
+              epsi=bb**2/aa
               write (iout,'(2(a3,i3,2x),17(0pf7.3))')
      &          restyp(itypi),i,restyp(itypj),j,
      &          epsi,sigm,chi1,chi2,chip1,chip2,
@@ -766,6 +822,8 @@ C Calculate the radial part of the gradient
               gg(1)=xj*fac
               gg(2)=yj*fac
               gg(3)=zj*fac
+              gg_lipi(3)=ssgradlipi*evdwij
+              gg_lipj(3)=ssgradlipj*evdwij
 C Calculate angular part of the gradient.
               call sc_grad_scale(1.0d0-sss)
             endif
@@ -827,14 +885,16 @@ C Calculate SC interaction energy.
 C
         do iint=1,nint_gr(i)
           do j=istart(i,iint),iend(i,iint)
+c            write (iout,*) "i",i," j", j," itype",itype(i),itype(j)
+c            call flush(iout)
             ind=ind+1
             itypj=itype(j)
             if (itypj.eq.ntyp1) cycle
 c            dscj_inv=dsc_inv(itypj)
             dscj_inv=vbld_inv(j+nres)
-c            write (iout,*) "j",j,dsc_inv(itypj),dscj_inv,
+c            write (iout,*) "j",j,itypi,itypj,dsc_inv(itypj),dscj_inv,
 c     &       1.0d0/vbld(j+nres)
-c            write (iout,*) "i",i," j", j," itype",itype(i),itype(j)
+c            call flush(iout)
             sig0ij=sigma(itypi,itypj)
             chi1=chi(itypi,itypj)
             chi2=chi(itypj,itypi)
@@ -853,7 +913,37 @@ c            write (iout,*) "i",i," j", j," itype",itype(i),itype(j)
           yj=mod(yj,boxysize)
           if (yj.lt.0) yj=yj+boxysize
           zj=mod(zj,boxzsize)
+c          write (iout,*) "After box"
+c          call flush(iout)
           if (zj.lt.0) zj=zj+boxzsize
+       if ((zj.gt.bordlipbot)
+     &.and.(zj.lt.bordliptop)) then
+C the energy transfer exist
+        if (zj.lt.buflipbot) then
+C what fraction I am in
+         fracinbuf=1.0d0-
+     &        ((positi-bordlipbot)/lipbufthick)
+C lipbufthick is thickenes of lipid buffore
+         sslipj=sscalelip(fracinbuf)
+         ssgradlipj=-sscagradlip(fracinbuf)/lipbufthick
+        elseif (zi.gt.bufliptop) then
+         fracinbuf=1.0d0-((bordliptop-positi)/lipbufthick)
+         sslipj=sscalelip(fracinbuf)
+         ssgradlipj=sscagradlip(fracinbuf)/lipbufthick
+        else
+         sslipj=1.0d0
+         ssgradlipj=0.0
+        endif
+       else
+         sslipj=0.0d0
+         ssgradlipj=0.0
+       endif
+c          write (iout,*) "After lipid"
+c          call flush(iout)
+      aa=aa_lip(itypi,itypj)*(sslipi+sslipj)/2.0d0
+     &  +aa_aq(itypi,itypj)*(2.0d0-sslipi+sslipj)/2.0d0
+      bb=bb_lip(itypi,itypj)*(sslipi+sslipj)/2.0d0
+     &  +bb_aq(itypi,itypj)*(2.0d0-sslipi+sslipj)/2.0d0
       dist_init=(xj-xi)**2+(yj-yi)**2+(zj-zi)**2
       xj_safe=xj
       yj_safe=yj
@@ -897,6 +987,8 @@ c            write (iout,*) "i",i," j", j," itype",itype(i),itype(j)
 C Calculate angle-dependent terms of energy and contributions to their
 C derivatives.
               call sc_angular
+c          write (iout,*) "After sc_angular"
+c          call flush(iout)
               sigsq=1.0D0/sigsq
               sig=sig0ij*dsqrt(sigsq)
               rij_shift=1.0D0/rij-sig+sig0ij
@@ -905,37 +997,41 @@ c              rij_shift=1.2*sig0ij
 C I hate to put IF's in the loops, but here don't have another choice!!!!
               if (rij_shift.le.0.0D0) then
                 evdw=1.0D20
-cd                write (iout,'(2(a3,i3,2x),17(0pf7.3))')
-cd     &          restyp(itypi),i,restyp(itypj),j,
-cd     &          rij_shift,1.0D0/rij,sig,sig0ij,sigsq,1-dsqrt(sigsq) 
+c                write (iout,'(2(a3,i3,2x),17(0pf7.3))')
+c     &          restyp(itypi),i,restyp(itypj),j,
+c     &          rij_shift,1.0D0/rij,sig,sig0ij,sigsq,1-dsqrt(sigsq) 
                 return
               endif
               sigder=-sig*sigsq
 c---------------------------------------------------------------
               rij_shift=1.0D0/rij_shift 
               fac=rij_shift**expon
-              e1=fac*fac*aa(itypi,itypj)
-              e2=fac*bb(itypi,itypj)
+              e1=fac*fac*aa
+              e2=fac*bb
               evdwij=eps1*eps2rt*eps3rt*(e1+e2)
               eps2der=evdwij*eps3rt
               eps3der=evdwij*eps2rt
 c              write (iout,*) "sigsq",sigsq," sig",sig," eps2rt",eps2rt,
 c     &        " eps3rt",eps3rt," eps1",eps1," e1",e1," e2",e2
+c              call flush(iout)
               evdwij=evdwij*eps2rt*eps3rt
               evdw=evdw+evdwij*sss
               if (lprn) then
-              sigm=dabs(aa(itypi,itypj)/bb(itypi,itypj))**(1.0D0/6.0D0)
-              epsi=bb(itypi,itypj)**2/aa(itypi,itypj)
+              sigm=dabs(aa/bb)**(1.0D0/6.0D0)
+              epsi=bb**2/aa
               write (iout,'(2(a3,i3,2x),17(0pf7.3))')
      &          restyp(itypi),i,restyp(itypj),j,
      &          epsi,sigm,chi1,chi2,chip1,chip2,
      &          eps1,eps2rt**2,eps3rt**2,sig,sig0ij,
      &          om1,om2,om12,1.0D0/rij,1.0D0/rij_shift,
      &          evdwij
+                call flush(iout)
               endif
 
-              if (energy_dec) write (iout,'(a6,2i5,0pf7.3)') 
-     &                        'evdw',i,j,evdwij
+              if (energy_dec) then
+                write (iout,'(a6,2i5,0pf7.3)') 'evdw',i,j,evdwij
+                call flush(iout)
+              endif
 
 C Calculate gradient components.
               e1=e1*eps1*eps2rt**2*eps3rt**2
@@ -948,8 +1044,14 @@ C Calculate the radial part of the gradient
               gg(1)=xj*fac
               gg(2)=yj*fac
               gg(3)=zj*fac
+              gg_lipi(3)=ssgradlipi*evdwij
+              gg_lipj(3)=ssgradlipj*evdwij
+c              write (iout,*) "Calling sc_grad_scale"
+c              call flush(iout)
 C Calculate angular part of the gradient.
               call sc_grad_scale(sss)
+c              write (iout,*) "After sc_grad_scale"
+c              call flush(iout)
             endif
           enddo      ! j
         enddo        ! iint
@@ -1044,8 +1146,8 @@ C I hate to put IF's in the loops, but here don't have another choice!!!!
 c---------------------------------------------------------------
               rij_shift=1.0D0/rij_shift 
               fac=rij_shift**expon
-              e1=fac*fac*aa(itypi,itypj)
-              e2=fac*bb(itypi,itypj)
+              e1=fac*fac*aa
+              e2=fac*bb
               evdwij=eps1*eps2rt*eps3rt*(e1+e2)
               eps2der=evdwij*eps3rt
               eps3der=evdwij*eps2rt
@@ -1054,8 +1156,8 @@ c---------------------------------------------------------------
               evdwij=evdwij*eps2rt*eps3rt
               evdw=evdw+(evdwij+e_augm)*(1.0d0-sss)
               if (lprn) then
-              sigm=dabs(aa(itypi,itypj)/bb(itypi,itypj))**(1.0D0/6.0D0)
-              epsi=bb(itypi,itypj)**2/aa(itypi,itypj)
+              sigm=dabs(aa/bb)**(1.0D0/6.0D0)
+              epsi=bb**2/aa
               write (iout,'(2(a3,i3,2x),17(0pf7.3))')
      &          restyp(itypi),i,restyp(itypj),j,
      &          epsi,sigm,sig,(augm(itypi,itypj)/epsi)**(1.0D0/12.0D0),
@@ -1166,8 +1268,8 @@ C I hate to put IF's in the loops, but here don't have another choice!!!!
 c---------------------------------------------------------------
               rij_shift=1.0D0/rij_shift 
               fac=rij_shift**expon
-              e1=fac*fac*aa(itypi,itypj)
-              e2=fac*bb(itypi,itypj)
+              e1=fac*fac*aa
+              e2=fac*bb
               evdwij=eps1*eps2rt*eps3rt*(e1+e2)
               eps2der=evdwij*eps3rt
               eps3der=evdwij*eps2rt
@@ -1176,8 +1278,8 @@ c---------------------------------------------------------------
               evdwij=evdwij*eps2rt*eps3rt
               evdw=evdw+(evdwij+e_augm)*sss
               if (lprn) then
-              sigm=dabs(aa(itypi,itypj)/bb(itypi,itypj))**(1.0D0/6.0D0)
-              epsi=bb(itypi,itypj)**2/aa(itypi,itypj)
+              sigm=dabs(aa/bb)**(1.0D0/6.0D0)
+              epsi=bb**2/aa
               write (iout,'(2(a3,i3,2x),17(0pf7.3))')
      &          restyp(itypi),i,restyp(itypj),j,
      &          epsi,sigm,sig,(augm(itypi,itypj)/epsi)**(1.0D0/12.0D0),
@@ -1212,6 +1314,8 @@ C----------------------------------------------------------------------------
       include 'COMMON.IOUNITS'
       double precision dcosom1(3),dcosom2(3)
       double precision scalfac
+c      write (iout,*) "sc_grad_scale",i,j,k,l
+c      call flush(iout)
       eom1=eps2der*eps2rt_om1-2.0D0*alf1*eps3der+sigder*sigsq_om1
       eom2=eps2der*eps2rt_om2+2.0D0*alf2*eps3der+sigder*sigsq_om2
       eom12=evdwij*eps1_om12+eps2der*eps2rt_om12
@@ -1234,10 +1338,10 @@ c      write (iout,*) "eom1",eom1," eom2",eom2," eom12",eom12
       enddo 
 c      write (iout,*) "gg",(gg(k),k=1,3)
       do k=1,3
-        gvdwx(k,i)=gvdwx(k,i)-gg(k)
+        gvdwx(k,i)=gvdwx(k,i)-gg(k)+gg_lipi(k)
      &            +(eom12*(dc_norm(k,nres+j)-om12*dc_norm(k,nres+i))
      &          +eom1*(erij(k)-om1*dc_norm(k,nres+i)))*dsci_inv*scalfac
-        gvdwx(k,j)=gvdwx(k,j)+gg(k)
+        gvdwx(k,j)=gvdwx(k,j)+gg(k)+gg_lipj(k)
      &            +(eom12*(dc_norm(k,nres+i)-om12*dc_norm(k,nres+j))
      &          +eom2*(erij(k)-om2*dc_norm(k,nres+j)))*dscj_inv*scalfac
 c        write (iout,*)(eom12*(dc_norm(k,nres+j)-om12*dc_norm(k,nres+i))
@@ -1249,8 +1353,8 @@ C
 C Calculate the components of the gradient in DC and X
 C
       do l=1,3
-        gvdwc(l,i)=gvdwc(l,i)-gg(l)
-        gvdwc(l,j)=gvdwc(l,j)+gg(l)
+        gvdwc(l,i)=gvdwc(l,i)-gg(l)+gg_lipi(l)
+        gvdwc(l,j)=gvdwc(l,j)+gg(l)+gg_lipj(l)
       enddo
       return
       end