C Calculate the virtual-bond-angle energy.
C
if (wang.gt.0d0) then
- call ebend(ebe)
+ call ebend(ebe,ethetacnstr)
else
ebe=0
endif
energia(17)=estr
energia(20)=Uconst+Uconst_back
energia(21)=esccor
+C energia(22)=
c Here are the energies showed per procesor if the are more processors
c per molecule then we sum it up in sum_energy subroutine
c print *," Processor",myrank," calls SUM_ENERGY"
& ecorr,wcorr,
& ecorr5,wcorr5,ecorr6,wcorr6,eel_loc,wel_loc,eello_turn3,wturn3,
& eello_turn4,wturn4,eello_turn6,wturn6,esccor,wsccor,
- & edihcnstr,ebr*nss,
+ & edihcnstr,
+ & ethetacnstr,ebr*nss,
& Uconst,etot
10 format (/'Virtual-chain energies:'//
& 'EVDW= ',1pE16.6,' WEIGHT=',1pD16.6,' (SC-SC)'/
& 'ETURN6=',1pE16.6,' WEIGHT=',1pD16.6,' (turns, 6th order)'/
& 'ESCCOR=',1pE16.6,' WEIGHT=',1pD16.6,' (backbone-rotamer corr)'/
& 'EDIHC= ',1pE16.6,' (dihedral angle constraints)'/
+ & 'ETHETC= ',1pE16.6,' (valence angle constraints)'/
& 'ESS= ',1pE16.6,' (disulfide-bridge intrinsic energy)'/
& 'UCONST= ',1pE16.6,' (Constraint energy)'/
& 'ETOT= ',1pE16.6,' (total)')
& ecorr,wcorr,
& ecorr5,wcorr5,ecorr6,wcorr6,eel_loc,wel_loc,eello_turn3,wturn3,
& eello_turn4,wturn4,eello_turn6,wturn6,esccor,wsccro,edihcnstr,
+ & ethetacnstr,
& ebr*nss,Uconst,etot
10 format (/'Virtual-chain energies:'//
& 'EVDW= ',1pE16.6,' WEIGHT=',1pD16.6,' (SC-SC)'/
& 'ETURN6=',1pE16.6,' WEIGHT=',1pD16.6,' (turns, 6th order)'/
& 'ESCCOR=',1pE16.6,' WEIGHT=',1pD16.6,' (backbone-rotamer corr)'/
& 'EDIHC= ',1pE16.6,' (dihedral angle constraints)'/
+ & 'ETHETC= ',1pE16.6,' (valence angle constraints)'/
& 'ESS= ',1pE16.6,' (disulfide-bridge intrinsic energy)'/
& 'UCONST=',1pE16.6,' (Constraint energy)'/
& 'ETOT= ',1pE16.6,' (total)')
& E_theta,E_tc)
endif
etheta=etheta+ethetai
+ do i=ithetaconstr_start,ithetaconstr_end
+ itheta=itheta_constr(i)
+ thetiii=theta(itori)
+ difi=pinorm(thetiii-theta_constr0(i))
+ if (difi.gt.theta_drange(i)) then
+ difi=difi-theta_drange(i)
+ ethetcnstr=ethetcnstr+0.25d0*for_thet_constr(i)*difi**4
+ gloc(itheta+nphi-2,icg)=gloc(itheta+nphi-2,icg)
+ & +for_thet_constr(i)*difi**3
+ else if (difi.lt.-drange(i)) then
+ difi=difi+drange(i)
+ ethetcnstr=ethetcnstr+0.25d0*for_thet_constr(i)*difi**4
+ gloc(itheta+nphi-2,icg)=gloc(itheta+nphi-2,icg)
+ & +for_thet_constr(i)*difi**3
+ else
+ difi=0.0
+ endif
+ if (energy_dec) then
+ write (iout,'(a6,2i5,4f8.3,2e14.5)') "ethetc",
+ & i,itheta,rad2deg*thetiii,
+ & rad2deg*theta_constr0(i), rad2deg*theta_drange(i),
+ & rad2deg*difi,0.25d0*for_thet_constr(i)*difi**4,
+ & gloc(itheta+nphi-2,icg)
+ endif
+ enddo
if (energy_dec) write (iout,'(a6,i5,0pf7.3)')
& 'ebend',i,ethetai
if (i.gt.3) gloc(i-3,icg)=gloc(i-3,icg)+wang*E_tc*dthetg1
enddo
enddo
10 continue
+C now we have the theta_constrains
+ do i=ithetaconstr_start,ithetaconstr_end
+ itheta=itheta_constr(i)
+ thetiii=theta(itori)
+ difi=pinorm(thetiii-theta_constr0(i))
+ if (difi.gt.theta_drange(i)) then
+ difi=difi-theta_drange(i)
+ ethetcnstr=ethetcnstr+0.25d0*for_thet_constr(i)*difi**4
+ gloc(itheta+nphi-2,icg)=gloc(itheta+nphi-2,icg)
+ & +for_thet_constr(i)*difi**3
+ else if (difi.lt.-drange(i)) then
+ difi=difi+drange(i)
+ ethetcnstr=ethetcnstr+0.25d0*for_thet_constr(i)*difi**4
+ gloc(itheta+nphi-2,icg)=gloc(itheta+nphi-2,icg)
+ & +for_thet_constr(i)*difi**3
+ else
+ difi=0.0
+ endif
+ if (energy_dec) then
+ write (iout,'(a6,2i5,4f8.3,2e14.5)') "ethetc",
+ & i,itheta,rad2deg*thetiii,
+ & rad2deg*theta_constr0(i), rad2deg*theta_drange(i),
+ & rad2deg*difi,0.25d0*for_thet_constr(i)*difi**4,
+ & gloc(itheta+nphi-2,icg)
+ endif
+ enddo
+
c lprn1=.true.
C print *,ethetai
if (lprn1)
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)
+C this variable with_theta_constr is the variable which allow to read and execute the
+C constrains on theta angles WITH_THETA_CONSTR is the keyword
+ with_theta_constr = index(controlcard,"WITH_THETA_CONSTR").gt.0
+ write (iout,*) "with_theta_constr ",with_theta_constr
call readi(controlcard,'SYM',symetr,1)
call reada(controlcard,'TIMLIM',timlim,960.0D0) ! default 16 hours
unres_pdb = index(controlcard,'UNRES_PDB') .gt. 0
phibound(2,ii) = phi0(i)+drange(i)
enddo
endif
+C first setting the theta boundaries to 0 to pi
+C this mean that there is no energy penalty for any angle occuring
+ do i=1,nres
+ thetabound(1,i)=0
+ thetabound(2,i)=pi
+ enddo
+C begin reading theta constrains this is quartic constrains allowing to
+C have smooth second derivative
+ if (with_theta_constr) then
+C with_theta_constr is keyword allowing for occurance of theta constrains
+ read (inp,*) ntheta_constr
+C ntheta_constr is the number of theta constrains
+ if (ntheta_constr.gt.0) then
+C read (inp,*) ftors
+ read (inp,*) (itheta_constr(i),theta_constr0(i),
+ & theta_drange(i),for_thet_constr(i),
+ & i=1,ntheta_constr)
+C the above code reads from 1 to ntheta_constr
+C itheta_constr(i) residue i for which is theta_constr
+C theta_constr0 the global minimum value
+C theta_drange is range for which there is no energy penalty
+C for_thet_constr is the force constant for quartic energy penalty
+C E=k*x**4
+ if(me.eq.king.or..not.out1file)then
+ write (iout,*)
+ & 'There are',ntheta_constr,' constraints on phi angles.'
+ do i=1,ntheta_constr
+ write (iout,'(i5,3f8.3)') itheta_constr(i),theta_constr0(i),
+ & theta_drange(i),
+ & for_thet_constr(i)
+ enddo
+ endif
+ do i=1,nthet_constr
+ theta_constr0(i)=deg2rad*theta_constr0(i)
+ theta_drange(i)=deg2rad*theta_drange(i)
+ enddo
+C if(me.eq.king.or..not.out1file)
+C & write (iout,*) 'FTORS',ftors
+ do i=1,ntheta_constr
+ ii = itheta_constr(i)
+ thetabound(1,ii) = phi0(i)-drange(i)
+ thetabound(2,ii) = phi0(i)+drange(i)
+ enddo
+ endif ! ntheta_constr.gt.0
+ endif! with_theta_constr
+C
+C with_dihed_constr = index(controlcard,"WITH_DIHED_CONSTR").gt.0
+C write (iout,*) "with_dihed_constr ",with_dihed_constr
nnt=1
#ifdef MPI
if (me.eq.king) then