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read-nbody-rt.f90
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!**************************************************************
! read_nbody (rt version)
! Author: S.Mohammad Hoseini Rad
! smhr313@gmail.com
! Nov 2012, IASBS, Zanjan
! Last modification: 7 July 2019 / 16 Tir 1398
!**************************************************************
! This program is free software; you can redistribute it and/or modify
! it under the terms of the GNU General Public License as published by
! the Free Software Foundation; either version 2 of the License, or
! (at your option) any later version.
!
! This program is distributed in the hope that it will be useful,
! but WITHOUT ANY WARRANTY; without even the implied warranty of
! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
! GNU General Public License for more details.
!
! You should have received a copy of the GNU General Public License
! along with this program; if not, write to the
! Free Software Foundation, Inc.,
! 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
! ******************************************
program read_nbody
! use read_mod
use kdtree2_module
implicit none
! ******************************************
real*8::start, finish ! For cpu_time subroutine.
integer*4::i,j,l,k,ll ! loop counter variables.
integer*4::IO,code, err, debug
integer::tscreen ! Frequency of output on screen.
integer::tout ! Frequency of output on harddisk.
integer,dimension(13)::buff ! This related to measuring size of input file.
integer*4::status ! This is related to measuring size of input file.
integer::loop_index
integer::INIT_NTOT
! ******************************************
! NBODY6 outputs (here inputs). See output.f in Ncode directory of NBODY6,
! before removing stars with NAME < 1 and outside tidal rdius.
integer*4::iiNTOT
integer,dimension(:),allocatable::iiNAME,iiKSTAR
real*8,dimension(:),allocatable::iiBODYS,iiRADIUS,iiZLMSTY
real*8,dimension(:,:),allocatable::iiXS,iiVS
! ******************************************
integer*4::iNTOT
integer,dimension(:),allocatable::iNAME,iKSTAR
real*8,dimension(:),allocatable::iBODYS,iRADIUS,iZLMSTY
real*8,dimension(:,:),allocatable::iXS,iVS
! ******************************************
! NBODY6 outputs (here inputs), after removing stars with NAME < 1 and outside tidal rdius.
integer*4::NTOT,NK,N,MODEL,NRUN
integer,dimension(:),allocatable::NAME,KSTAR
real*8,dimension(:),allocatable::AS,BODYS,RADIUS,ZLMSTY
real*8,dimension(:,:),allocatable::XS,VS
real*4,dimension(:,:),allocatable::XSS,VSS
real*4,dimension(:),allocatable::BODYSS,ASS ! For converting single precision to double precision ( if code = 2).
! ******************************************
real*8::mtot, imtot, T6, mtot0
integer,dimension(:,:),allocatable::list_neighbor_idx ! Neighbor index array.
real,dimension(:,:),allocatable::list_neighbor_dis ! Neighbor distance array.
character(len=100)::output_file, input_file, fprefix
integer::n_neighbor ! Number of nearest neighbors in Casterano & Hut method.
real*8,dimension(3)::Xd ! Density center coordinates.
real*8,dimension(5)::LR ! Lagrangian radii array.
real*8,dimension(:),allocatable::r,ir ! Position vector of stars after and befor tidal radius detemination.
! ******************************************
type(kdtree2), pointer::tree
real, allocatable:: mydata(:,:)
type(kdtree2_result), allocatable :: results(:)
! ******************************************
real*8,dimension(:),allocatable::irho, rho, rho2
real*8::sixth_neighbor_distance, m_tot_5th, irho_tot, rho2_tot_in_rh
real*8,dimension(3)::irho_times_dis_tot
! ******************************************
real*8::mtemp, rtemp, rstep, rc, rt
integer::check, diss_check, major_output
! ******************************************
real::Ndiss, Mdiss
! ******************************************
character(len=40)::model_name, dir_command
! ******************************************
real*8::rx, ry, rz, vx, vy, vz, Ebin, a, ecc, ecc2, Lx, Ly, Lz, fbin0, fbint
real*8,dimension(:,:),allocatable::del_r, del_v2, nei_BODYS, L2
real*8,dimension(:,:),allocatable::idel_r, idel_v2, inei_bodys, iL2
integer*8,dimension(:,:),allocatable::nei_NAME, inei_NAME
integer::nid, find_binary, Nbin
real*8::binary_energy_criterion
! *****************************************
real*8::Mstar, Tstar, Rstar, Vstar
real,parameter::G = 0.0043009211 ! In pc*km^2/s^2*M_sun
real,parameter::AU = 206264.806 ! pc to AU
! ******************************************
integer:: res_INIT_NTOT
real*8:: res_mtot0
! ******************************************
call cpu_time(start)
! ******************************************
!** Initialization of internal variables ***
! Please don't change this variable.
IO = 0
err = 0
status = 0
n_neighbor = 6 ! Number of nearest neighbors in Casterano & Hut (1985) and Aarseth (2001) method.
loop_index = 0
INIT_NTOT = 0; iNTOT = 0; imtot = 0
rstep = 0.01 ! Bin length in pc for calculating lagrangian radii.
res_INIT_NTOT = 0
res_mtot0 = 0.
! ************ Code options ****************
! ******************************************
code = 3 ! 1:NBODY6 custom, 2: NBODY6, 3: NBODY6 new custom version
tscreen = 1 ! Time interval of output on screen & harddisk. (NBODY6 custom: Myr, NBODY6: N-body unit)
tout = 1 ! Time interval of output on screen & harddisk. It Also prevent neighbor arrays and kdtree2 pointers to be allocated. So if you have many time snapshots, by increasing 'tout', you can pass the memory overflow problem. (NBODY6 custom: Myr, NBODY6: N-body unit)
debug = 1 ! 1: Debug mode.
diss_check = 1 ! 1: Check dissolution of cluster; 0: No check.
Ndiss = 0 ! By reaching to this fraction of initial number of stars, the cluster is considered as a dissolved cluster; 0: Suppress this option.
Mdiss = 0.001 ! By reaching to this fraction of initial mass, the cluster is considered as a dissolved cluster; 0: Suppress this option.
major_output = 0
! Please note just use one of Ndiss or Mdiss options.
! model_name = 'N7500d8.5Rh3nei5_in_Rt'
find_binary = 1 ! 0: Skip to find binary; 1: Find binaries.
binary_energy_criterion = -0.001
! ********* Input & Output files. *********
! *****************************************
call get_model_name ( input_file, model_name, res_INIT_NTOT, res_mtot0 )
! dir_command = 'rm -f ./binary.txt; touch ./binary.txt'
! call system ( dir_command )
! input_file='N7500.POS' ! Input file.
open(1,file=input_file, form='unformatted')
open(2,file='overview.txt') ! This file includes some cluster characteristics.
open(3,file='density_center.txt') ! This file includes density center coordinate of cluster during evolution.
open(7,file='radii.txt') ! This file includes Lagrangian radii.
open(10,file='binary.txt')
! ******************************************
dir_command = 'mkdir '// model_name
call system ( dir_command )
call STAT (input_file, buff,status) ! Calculating size of input file.
if (status == 0) then
write(*,*)
write(*,*)"Size of file is", buff(8), "Byte."
endif
! ******************************************
write(2,*) " T_NB T_Myr N M M_ratio Rh Rt Rc Rc_O_Rh RC Rh_O_Rt fbin0 fbint"
write(7,*)" T(NBODY) Time(Myr) LR_0.01 LR_0.10 LR_0.30 LR_0.50 LR_0.70 Rt Rc Rc/Rh RC Rh/Rt"
! write(2,*) " T(NBODY) T(Myr) NTOT(in Rt) MTOT(in Rt) Rh Rt"
! ************ Read in loop ****************
! *******************************************
! do l=1,10
! By activating this loop, you can define exact time in terms of output interval (DELTAT in NBODY6 or dtscreen in mcluster [N-body units (Myr in Nbody6 custom)]).
DO WHILE ( .TRUE. ) ! Repeating the loop until the end of input file.
! *******************************************
! define_arrays_size ( code, input_file, loop_index, NTOT, MODEL, NRUN, NK, N, INIT_NTOT ) ! Read number of particles in each loop.
if ( code == 1 .or. code == 3) then
read(1, iostat=IO)iiNTOT,NK,N
if (debug == 1 ) write (*,'(3i10)') iiNTOT,NK,N
if ( loop_index == 0 ) INIT_NTOT = iiNTOT
if ( IO /= 0 ) then
call termination ( IO, err)
endif
else if ( code == 2 ) then
read(1, iostat=IO)iiNTOT, MODEL, NRUN, NK
if ( loop_index == 0 ) INIT_NTOT = iiNTOT
if (debug == 1 ) write (*,'(5i10)') iiNTOT, MODEL, NRUN, NK, N
if ( IO /= 0 ) then
call termination ( IO, err)
endif
endif
if ( res_INIT_NTOT /= 0 ) then
INIT_NTOT = res_INIT_NTOT
endif
! *******************************************
if ( code == 1 .or. code == 3) then
if ( mod (int(nint(AS(10))),tout) /= 0 ) cycle
elseif ( code == 2 ) then
! print*,"AS(1)=",AS(1)
! bbb=mod (int(nint(AS(1))),tout)
! print*, bbb
if ( mod (int(nint(AS(1))),tout) /= 0 ) cycle
endif
! *******************************************
! *******************************************
! This condition is for appropriate termination of the program if cluster dissolves.
if ( iiNTOT > 0 ) then
if ( diss_check == 1 ) then
if ( Ndiss > 0 ) then
! print*,iiNTOT , Ndiss , INIT_NTOT, Ndiss * INIT_NTOT, iiNTOT - Ndiss * INIT_NTOT
if ( iiNTOT <= Ndiss * INIT_NTOT ) then
err = 2
call termination ( IO, err )
endif
endif
if ( loop_index == 1) imtot = mtot
if ( imtot > 0 ) then
! print*,Ndiss,Mdiss
if ( Ndiss == 0 .and. Mdiss > 0 ) then
if ( mtot <= Mdiss * imtot ) then
err = 2
call termination ( IO, err )
endif
elseif ( Ndiss == 0 .and. Mdiss == 0 ) then
write (*,*) "Warning! Both Ndiss and Mdiss are zero!!!"
write (*,*) "Please input 0 and press Enter to continue."
read (*,*) diss_check
if ( diss_check /= 0 ) then
write (*,*) "Progrom is stoped!"
STOP
endif
endif
endif
endif
else
write (*,*) "iiNTOT <= 0. Progrom is stoped!"
STOP
endif
!***********************************
! call readin ( code, input_file, iNTOT, NK, AS, iBODYS, iXS, iVS, iRADIUS, iNAME, iKSTAR, iZLMSTY ) ! Read input arrays according to the output.f in Ncode directory of NBODY6. Note that there are some differences between NBODY6 custom and NBODY6 input variables.
!************************************
allocate (AS(NK)); allocate (iiBODYS(iiNTOT)); allocate(iiXS(3,iiNTOT)); allocate(iiVS(3,iiNTOT))
allocate(iiRADIUS(iiNTOT)); allocate(iiNAME(iiNTOT)); allocate(iiKSTAR(iiNTOT)); allocate(iiZLMSTY(iiNTOT))
allocate (ASS(NK)); allocate (BODYSS(iiNTOT)); allocate(XSS(3,iiNTOT)); allocate(VSS(3,iiNTOT))
if (debug == 1 ) print*,"Allocating readin arrays."
iiRADIUS = 0 ;iiZLMSTY = 0; iiKSTAR = 0
rt = 0; T6 = 0; Mstar =0; Rstar = 0; Vstar = 0; Tstar = 0
if ( code == 1 .or. code == 3) then
read(1, iostat=IO)(AS(K),K=1,NK),(iiBODYS(J),J=1,iiNTOT),((iiXS(K,J),K=1,3),J=1,iiNTOT),((iiVS(K,J),K=1,3),J=1,iiNTOT),&
(iiRADIUS(J),J=1,iiNTOT),(iiNAME(J),J=1,iiNTOT),&
(iiKSTAR(J),J=1,iiNTOT),(iiZLMSTY(J),J=1,iiNTOT)
if (debug == 1 ) write (*,*)(k,AS(K),K=1,NK)
if ( code == 1 ) then
rt = AS(25) ! Tidal Radius.
T6 = AS(10) ! Astrophysical time (Myr).
Mstar = AS(4)
Rstar = AS(3)
Vstar = AS(12)
else if ( code == 3 ) then ! new nbody6 version
rt = AS(5) ! Tidal Radius.
Tstar = AS(11)
T6 = AS(1) * Tstar ! Astrophysical time (Myr), Nbody time * TSCALE
Mstar = AS(4)
Rstar = AS(3)
Vstar = AS(12)
endif
if ( IO /= 0 ) then
err = 1
call termination ( IO, err)
endif
else if ( code == 2 ) then
read(1, iostat=IO)(ASS(K),K=1,NK),(BODYSS(J),J=1,iiNTOT),((XSS(K,J),K=1,3),J=1,iiNTOT),((VSS(K,J),K=1,3),J=1,iiNTOT),&
(iiNAME(J),J=1,iiNTOT)
if (debug == 1 ) write (*,*)(k,ASS(K),K=1,NK)
do J=1, NK ! Convert to double precision
AS(J) = ASS(J)
enddo
do J=1, iiNTOT ! Convert to double precision
iiBODYS(J) = BODYSS(J)
do K=1, 3
iiXS(K,J) = XSS(K,J)
iiVS(K,J) = VSS(K,J)
enddo
enddo
rt = AS(5) ! Tidal Radius.
Tstar = AS(11)
T6 = AS(1) * Tstar ! Astrophysical time (Myr), Nbody time * TSCALE
Mstar = AS(4)
Rstar = AS(3)
Vstar = AS(12)
if ( IO /= 0 ) then
err = 1
call termination ( IO, err)
endif
endif
!************************************
! Check "dtout" option:
if ( code == 1 .or. code == 3 ) then
if ( mod (int(nint(AS(10))),tout) /= 0 )then
deallocate (AS, iiBODYS, iiXS, iiVS, iiRADIUS, iiNAME, iiKSTAR, iiZLMSTY)
deallocate (ASS, BODYSS, XSS, VSS)
cycle
endif
elseif ( code == 2 ) then
if ( mod (int(nint(AS(1))),tout) /= 0 ) then
deallocate (AS, iiBODYS, iiXS, iiVS, iiRADIUS, iiNAME, iiKSTAR, iiZLMSTY)
deallocate (ASS, BODYSS, XSS, VSS)
cycle
endif
endif
!***********************************
! call test_name ( code, iNTOT, AS, iBODYS, iXS, iVS, iRADIUS, iNAME, iKSTAR, iZLMSTY,&
! & NTOT, BODYS, XS, VS, RADIUS, NAME, KSTAR, ZLMSTY, r )
!***********************************
!print*,intot,ntot,"intot,ntot"
i = 0; k = 0; iNTOT = 0
!print*,intot,ntot,"intot,ntot"
if (debug == 1 ) write (*,*) "Allocating ir Array in test_name."
if (debug == 1 ) write (*,*) "INIT_NTOT = ", INIT_NTOT
do i = 1, iiNTOT
if (debug == 1 ) then
! if (iiname(i)<=0 .or. iiname(i)> INIT_NTOT) print*,"iiname=",iiname(i),"for i =", i
endif
if ( iiNAME(i) >= 1 .AND. iiNAME(i) <= INIT_NTOT .AND. iiBODYS(i) > 0 ) then
! if ( iiNAME(i) >= 1 .AND. iiNAME(i) <= N .AND. iiBODYS(i) > 0 ) then
k = k + 1
endif
enddo
print*,"iNTOT =", k
iNTOT = k
allocate (iBODYS(iNTOT)); allocate(iXS(3,iNTOT)); allocate(iVS(3,iNTOT))
allocate(iRADIUS(iNTOT)); allocate(iNAME(iNTOT)); allocate(iKSTAR(iNTOT)); allocate(iZLMSTY(iNTOT))
! allocate(ir(iNTOT)); allocate (irho(NTOT))
if (debug == 1 ) write (*,*)"Allocating test_name."
k = 0
do i = 1, iiNTOT
if ( iiNAME(i) >= 1 .AND. iiNAME(i) <= INIT_NTOT .AND. iiBODYS(i) > 0 ) then
! if ( iiNAME(i) >= 1 .AND. iiNAME(i) <= N .AND. iiBODYS(i) > 0 ) then
! ir(i) = sqrt( iXS(1,i)*iXS(1,i) + iXS(2,i)*iXS(2,i) + iXS(3,i)*iXS(3,i) )
! if ( code == 1 ) then
! if ( ir(i) <= 4*rt ) then
k = k + 1
! r(k) = ir(i)
iBODYS(k) = iiBODYS(i)
iXS(1,k) = iiXS(1,i); iXS(2,k) = iiXS(2,i); iXS(3,k) = iiXS(3,i)
iVS(1,k) = iiVS(1,i); iVS(2,k) = iiVS(2,i); iVS(3,k) = iiVS(3,i)
iRADIUS(k) = iiRADIUS(i)
iNAME(k) = iiNAME(i)
iKSTAR(k) = iiKSTAR(i)
iZLMSTY(k) = iiZLMSTY(i)
! rho(k) = irho(i)
else
! print*,"zzzzzzzzzzzzzz!", iiname(i), iibodys(i)
endif
enddo
iiNTOT = 0
! print*,ixs
deallocate ( iiBODYS, iiXS, iiVS, iiRADIUS , iiNAME, iiKSTAR, iiZLMSTY )
!************************************
! write(*,'(i10, f11.1, i 10)')NTOT,AS(10),N
! call neighbor_find ( n_neighbor, iNTOT, iXS, list_neighbor_idx, list_neighbor_dis ) ! finding all neighbors and their distances for all stars and saving them in list_neighbor_idx and list_neighbor_dis arrays correspondingly.
!************************************
if (debug == 1 ) write (*,*) "Finding neighbor with iNTOT = ", iNTOT
allocate(mydata(3,iNTOT))
mydata = iXS ! putting x,y and z of all stars in mydata array to change them to single precision.
tree => kdtree2_create(mydata,rearrange=.true.,sort=.true.)
allocate (list_neighbor_idx (iNTOT,n_neighbor + 1))
allocate (list_neighbor_dis (iNTOT,n_neighbor + 1))
do i=1,iNTOT ! Find star neighbors and their distances to the ith star in XSt array.
! if ( iBODYS(i) > 0 .AND. iNAME(i) >= 1 .AND. iNAME(i) <= INIT_NTOT ) then
allocate (results(n_neighbor + 1)) ! The results(1) is associated with the ith star. The results(2..n_neighbor+1) are associated with n_neighbor nearest neighbors. So for 6 nearest neighbors, size of results array must be 7.
call kdtree2_n_nearest_around_point(tree,idxin=i,nn=n_neighbor + 1,correltime=0,results=results)
do ll=1,n_neighbor + 1
list_neighbor_idx (i,ll) = results (ll)%idx
list_neighbor_dis (i,ll) = sqrt(results (ll)%dis)
enddo
deallocate (results)
! endif
enddo
!************************************
! call center_find ( n_neighbor, iNTOT, iBODYS, iXS, list_neighbor_idx, list_neighbor_dis, Xdt ) ! Finding density center of cluster according to the Casterano & Hut (1985) and Aarseth 2001 method. For more details see center_find subroutine.
!************************************
if (debug == 1 ) write (*,*) "Finding density center."
allocate(irho(iNTOT)); allocate (idel_r(iNTOT, n_neighbor + 1))
allocate(idel_v2(iNTOT, n_neighbor + 1)); allocate(inei_bodys(iNTOT, n_neighbor + 1))
allocate(inei_NAME(iNTOT, n_neighbor + 1)); allocate(iL2(iNTOT, n_neighbor + 1))
irho = 0; irho_tot = 0; irho_times_dis_tot = 0; Xd = 0
! tree => kdtree2_create(mydata,rearrange=.true.,sort=.true.)
do i=1,iNTOT
! if ( iBODYS(i) > 0 .AND. iNAME(i) >= 1 .AND. iNAME(i) <= INIT_NTOT ) then
m_tot_5th=0; sixth_neighbor_distance=0
sixth_neighbor_distance=sqrt(list_neighbor_dis (i,n_neighbor + 1))
! write(*,*)results(7)%idx, sixth_neighbor_distance
do ll=2, n_neighbor
m_tot_5th=m_tot_5th+iBODYS(list_neighbor_idx (i,ll)) ! Total mass of fifth nearest neibors.
enddo
irho(i) = m_tot_5th/(sixth_neighbor_distance ** 3.)
irho_tot = irho_tot + irho(i)
! print*,"!!!",i,irho(i), irho_tot
irho_times_dis_tot(1) = irho_times_dis_tot(1) + irho(i) * iXS(1,i)
irho_times_dis_tot(2) = irho_times_dis_tot(2) + irho(i) * iXS(2,i)
irho_times_dis_tot(3) = irho_times_dis_tot(3) + irho(i) * iXS(3,i)
! write(*,*)i, m_tot_5th
! endif
enddo
Xd(1) = ( irho_times_dis_tot(1)/irho_tot )
Xd(2) = ( irho_times_dis_tot(2)/irho_tot )
Xd(3) = ( irho_times_dis_tot(3)/irho_tot )
! write(*,*) (Xd(i),i=1,3)
if (debug == 1 ) then
write (*,*) "Xd:", (Xd(i),i=1,3)
write (*,*) "Done."
endif
! **********************************
idel_r = 0; idel_v2 =0; inei_bodys = 0; inei_NAME = 0; iL2 = 0
do i =1, iNTOT
ll = 0
do ll=2, n_neighbor+1
nid = list_neighbor_idx(i,ll) ! Index of nearest neighbor.
! if ( iBODYS(i) > 0 .AND. iNAME(i) >= 1 .AND. iNAME(i) <= INIT_NTOT ) then
inei_BODYS(i,ll) = iBODYS(nid)
inei_NAME(i,ll) = iNAME(nid)
! print*,"* ",ixs(1,i),ixs(2,i),ixs(3,i)
rx = iXS(1,i) - iXS (1,nid)
ry = iXS(2,i) - iXS (2,nid)
rz = iXS(3,i) - iXS (3,nid)
idel_r(i,ll) = sqrt ( rx*rx + ry*ry + rz*rz )
! print*, "%%%%%%%%%%%%%%%%%",i, ll, idel_r(i,ll)
! print*, "#################",i, ll, list_neighbor_dis (i,ll)
vx = iVS(1,i) - iVS (1,nid)
vy = iVS(2,i) - iVS (2,nid)
vz = iVS(3,i) - iVS (3,nid)
idel_v2(i,ll) = ( vx*vx + vy*vy + vz*vz )
Lx = ry*vz - rz*vy
Ly = rz*vx - rx*vz
Lz = rx*vy - ry*vx
iL2(i,ll) = lx*lx + ly*ly + lz*lz
! if (iname(i)==80373) write (*,'(a15, 4i8, 4f12.2)')"#######", i, nid, iname(i), inei_NAME(i ,ll), iBODYS(i),&
! & inei_BODYS(i ,ll), idel_r(i, ll)*AU*Rstar, list_neighbor_dis (i,ll)*AU*Rstar
! endif
enddo
enddo
! **********************************
!***********************************
!
! call coordinate_correction ( iNTOT, Xdt, iXS ) ! Correcting the origin of coordinate system by subtracting all star coordinates from measured density center.
!***********************************
do j = 1, iNTOT
! print*,"* ",ixs(1,j),ixs(2,j),ixs(3,j)
i = 0
do i = 1, 3
iXS(i,j) = iXS(i,j) - Xd(i)
enddo
! print*,"* ",ixs(1,j),ixs(2,j),ixs(3,j), xd(i)
enddo
! print*,xd
!***********************************
! call test rt ( code, iNTOT, AS, iBODYS, iXS, iVS, iRADIUS, iNAME, iKSTAR, iZLMSTY,&
! & NTOT, BODYS, XS, VS, RADIUS, NAME, KSTAR, ZLMSTY, r )
!***********************************
!print*,intot,ntot,"intot,ntot"
i = 0; k = 0; NTOT = 0
!print*,intot,ntot,"intot,ntot"
allocate(ir(iNTOT))
if (debug == 1 ) write (*,*) "Testing rt."
if ( AS(1) > 0.0001) then ! This condition is for tidal radius to be correct at t=0 and includes all stars.
do i = 1, iNTOT
! if ( iNAME(i) >= 1) then
ir(i) = sqrt( iXS(1,i)*iXS(1,i) + iXS(2,i)*iXS(2,i) + iXS(3,i)*iXS(3,i) )
! print*,ir(i)
if ( ir(i) <= rt ) then
k = k + 1
endif
! endif
enddo
NTOT = k
else
NTOT = iNTOT
endif
!################################
! if (as(1)==200) then
! open(8,file='nnn')
! do i= 1,iNTOT
! write (8,'(8i8,6f13.8)')i, iNAME(i), list_neighbor_idx (i,2), list_neighbor_idx (i,3), list_neighbor_idx (i,4),&
! &iNAME(list_neighbor_idx (i,2)), iNAME(list_neighbor_idx (i,3)), iNAME(list_neighbor_idx (i,4)),&
! & ir(list_neighbor_idx (i,2)), ir(list_neighbor_idx (i,3)), ir(list_neighbor_idx (i,4)),&
! & iBODYS(list_neighbor_idx (i,2)), iBODYS(list_neighbor_idx (i,3)), iBODYS(list_neighbor_idx (i,4))
! enddo
! endif
!################################
if (debug == 1 ) write (*,*)" Allocating test_rt arrays."
allocate (BODYS(NTOT)); allocate(XS(3,NTOT)); allocate(VS(3,NTOT))
allocate(RADIUS(NTOT)); allocate(NAME(NTOT)); allocate(KSTAR(NTOT)); allocate(ZLMSTY(NTOT))
allocate(r(NTOT)); allocate (rho(NTOT))
allocate (del_r(NTOT, n_neighbor + 1)); allocate(del_v2(NTOT, n_neighbor +1 ))
allocate(nei_bodys(NTOT, n_neighbor + 1)); allocate(nei_NAME(NTOT, n_neighbor + 1))
allocate(L2(NTOT, n_neighbor + 1))
if (debug == 1 ) write (*,*) " Done."
del_r = 0; del_v2 = 0; nei_bodys = 0; nei_NAME = 0
! print*,AS(1)
if ( AS(1) > 0.0001) then
k = 0
do i = 1, iNTOT
! if ( iNAME(i) >= 1) then
ir(i) = sqrt( iXS(1,i)*iXS(1,i) + iXS(2,i)*iXS(2,i) + iXS(3,i)*iXS(3,i) )
! print*,ixs(1,i)
! if ( code == 1 ) then
if ( ir(i) <= rt ) then
k = k + 1
r(k) = ir(i)
BODYS(k) = iBODYS(i)
XS(1,k) = iXS(1,i); XS(2,k) = iXS(2,i); XS(3,k) = iXS(3,i)
! print*,ixs(1,k)
VS(1,k) = iVS(1,i); VS(2,k) = iVS(2,i); VS(3,k) = iVS(3,i)
RADIUS(k) = iRADIUS(i)
NAME(k) = iNAME(i)
KSTAR(k) = iKSTAR(i)
ZLMSTY(k) = iZLMSTY(i)
rho(k) = irho(i)
ll = 0
do ll = 2, n_neighbor + 1
del_r(k, ll) = idel_r(i, ll)
del_v2(k, ll) = idel_v2(i, ll)
L2(k, ll) = iL2(i, ll)
nei_bodys(k, ll) = inei_bodys(i , ll)
nei_NAME(k, ll) = inei_NAME(i, ll)
enddo
endif
enddo
else
! print*,ixs
BODYS = iBODYS; XS = iXS; VS = iVS; RADIUS = iRADIUS
NAME = iNAME; KSTAR = iKSTAR; ZLMSTY = iZLMSTY; rho = irho
del_r = idel_r; del_v2 = idel_v2; nei_bodys = inei_bodys
nei_NAME = inei_NAME; L2 = iL2
! print*,ivs
do i=1, NTOT
r(i) = sqrt( iXS(1,i)*iXS(1,i) + iXS(2,i)*iXS(2,i) + iXS(3,i)*iXS(3,i) )
enddo
endif
deallocate ( iBODYS, iXS, iVS, iRADIUS , iNAME, iKSTAR, iZLMSTY, ir )
deallocate ( idel_r, idel_v2, inei_bodys, inei_NAME, iL2 )
if (debug == 1 ) write (*,*) "Done."
!***********************************
!
! call radii ( NTOT, BODYS, XS, AS, mtot, LR ) ! Computing Lagrangian radii and changing units.
!************************************
rtemp = 0; mtemp = 0; check = 1
if (debug == 1 ) write (*,*) "Calculating LRs."
mtot = 0
do i = 1, NTOT ! ************ Converting from Nbody units to Astrophysical units:
! print*, i
BODYS(i) = BODYS(i) * Mstar ! Converting masses to Solar Mass.
mtot = mtot + BODYS(i)
r(i) = r(i) *Rstar ! Converting distances to pc.
! print*,r(i)
rho(i) = rho(i) * Mstar / Rstar / Rstar / Rstar
do k = 1, 3 ! Converting coordinates to pc & velocities to km/s.
XS(k,i)=XS(k,i)*Rstar; VS(k,i)=VS(K,i)*Vstar
! print*,XS(k,i)
enddo
enddo
if ( AS(1) < 0.0001) mtot0 = mtot
rt = rt * Rstar
if ( res_mtot0 /= 0. ) then
mtot0 = res_mtot0
endif
do while ( check /= 6 )
mtemp = 0
! print*,mtot0, mtot, check, rtemp
do i = 1, NTOT
! print*, r(i), rtemp, Rstar
if ( r(i) <= rtemp ) then
mtemp = mtemp + BODYS(i)
! print*,mtemp
if ( mtemp >= mtot * 0.01 .AND. check == 1) then
LR(1) = rtemp;! print*,"LR1 = ",LR(1)
check = 2; exit
elseif ( mtemp >= ( mtot * 0.10 ) .AND. check == 2 ) then
LR(2) = rtemp;! print*,"LR5 = ",LR(2)
check = 3; exit
elseif ( mtemp >= ( mtot * 0.30 ) .AND. check == 3 ) then
LR(3) = rtemp;! print*,"LR50 = ",LR(3)
check = 4; exit
elseif ( mtemp >= ( mtot * 0.50 ) .AND. check == 4 ) then
LR(4) = rtemp;! print*,"LR75 = ",LR(4)
check = 5; exit
elseif ( mtemp >= mtot * 0.70 .AND. check == 5 ) then
LR(5) = rtemp;! print*,"LR95 = ",LR(5)
check = 6; exit
endif
endif
enddo
rtemp = rtemp + rstep
enddo
if (debug == 1 ) write (*,*)"Calculating LRs. Done."
!***********************************
!
! core ! Computing Core Radius (Trenti et al. 2007).
!************************************
allocate (rho2(NTOT))
rc = 0; rho2 = 0; rho2_tot_in_rh = 0
do i=1, NTOT
! if ( r(i) <= rt ) then
if ( r(i) <= LR(3) ) then
rho2(i) = rho(i) * rho(i)
rc = rc + r(i) * r(i) * rho2(i)
! print*,r(i), rho(i),"@@@@@@@@"
rho2_tot_in_rh = rho2_tot_in_rh + rho2(i)
endif
enddo
rc = sqrt( rc / rho2_tot_in_rh )
if (debug == 1 ) write (*,*)"Calculating Core Radius. Done."
!***********************************
!
! Binary ! Finding binaries.
!************************************
if ( find_binary == 1 ) then
if (debug == 1 ) write (*,*)"Finding binaries."
Ebin = 0; a = 0; ecc = 0; ecc2 = 0; Nbin = 0; fbin0 = 0; fbint = 0; j = 0
! if (as(1)==800) print*,name(list_neighbor_idx(1,2)), BODYS(list_neighbor_idx(1,2)),&
! & BODYS(list_neighbor_idx(1,3)), "^^^^^^^^^^^^^^^^"
do i = 1, NTOT
if (name(i)==0) print*,"name=",name(i),"for i =", i
ll=0
do ll=2, n_neighbor+1
nei_BODYS(i, ll) = nei_BODYS(i, ll) * Mstar
del_r(i, ll) = del_r(i, ll) * Rstar
del_v2(i, ll) = del_v2(i, ll) * Vstar * Vstar
L2(i, ll) = L2(i, ll) * Rstar * Vstar * Rstar * Vstar
! *******************************************
Ebin = - ( G * BODYS(i) * nei_BODYS(i, ll) / del_r(i, ll) ) &
& + 0.5 * BODYS(i) * nei_BODYS(i, ll) / ( BODYS(i) + nei_BODYS(i ,ll) )&
& * del_v2(i, ll)
a = - 0.5 * G * BODYS(i) * nei_BODYS(i, ll) / Ebin
ecc2 = 1. - L2(i, ll) / ( G * a * ( BODYS(i) + nei_BODYS(i, ll) ) )
if ( ecc2 >= 0 ) then
ecc = sqrt(ecc2)
else
ecc = 0
endif
! if (name(i)==80373) write (*,'(a15, 3i8, 7f12.2)')"********", i, name(i), nei_NAME(i ,ll), BODYS(i),&
! & nei_BODYS(i ,ll), ecc, a*AU, del_r(i, ll)*AU,&
! & list_neighbor_dis (i,ll)*AU*Rstar, Ebin
if ( Ebin < binary_energy_criterion ) then
if ( NAME(i) == nei_NAME(i, ll) ) cycle
! write (*,'(a15, 2i8, 6f12.2)')"binary", name(i), nei_NAME(i ,ll), BODYS(i),&
! & nei_BODYS(i ,ll), ecc, a*AU, del_r(i, ll)*AU, Ebin
Nbin = Nbin + 1
write (10,'(2f10.3, 2i10, 6f12.3)') AS(1), T6, name(i), nei_NAME(i ,ll), BODYS(i),&
& nei_BODYS(i ,ll), ecc, a*AU, del_r(i, ll)*AU, Ebin
endif
enddo
enddo
Nbin = Nbin / 2 !Because each binary counted twice.
if (debug == 1 ) then
print*,Nbin, "binaries were found."
write (*,*)"Done."
endif
endif ! End of main binary finding condition.
!fbin0 = ( Nbin * 2. ) / INIT_NTOT
fbin0 = float( Nbin ) / N
fbint = float( Nbin ) / NTOT
!************************************
!
! call writeout ( code, output_file, mtot, LR, tscreen, NTOT, NK, AS, BODYS, XS, VS, RADIUS, NAME, KSTAR, ZLMSTY ) ! Writing out outputs.
!************************************
if ( major_output == 1 ) then
! if ( code == 1 ) then
Write(output_file , '( f7.1 )' ) T6
if ( nint(T6) < 10 ) then
output_file = trim(model_name) // '0000' // trim(output_file) ! // ".txt"
! output_file = output_file // ".txt"
! print*,output_file,len_trim(output_file)
else if ( nint(T6) < 100 ) then
output_file = trim(model_name) // '000' // trim(output_file)
else if ( nint(T6) < 1000 ) then
output_file = trim(model_name) // '00' // trim(output_file)
else if ( nint(T6) < 10000 ) then
output_file = trim(model_name) // '0' // trim(output_file)
else
output_file = trim(model_name) // trim(output_file)
endif
output_file = trim(model_name) // '/' // trim(output_file)
output_file = sweep_blanks(output_file)
open(4,file=output_file)
do i=1,NTOT
if ( code == 1 .or. code == 3) then
write(4,'(i7, f14.9, 6f13.6 , i3, 2f15.5)')NAME(i), BODYS(i),(XS(K,i),K=1,3),&
&(VS(K,i),K=1,3), KSTAR(i), ZLMSTY(i), RADIUS(i)
elseif ( code == 2 ) then
write(4,'(i7, f14.9, 6f13.6 )')NAME(i), BODYS(i),(XS(K,i),K=1,3),&
&(VS(K,i),K=1,3)
endif
enddo
endif !End of major_output loop
! Write to "overview.txt" file.
write(2,'(2f8.1, i7, f11.2, f8.3, 8f9.3)')AS(1), T6, NTOT, mtot, mtot/mtot0,&
& LR(4), rt, rc, rc/LR(4), AS(13)*Rstar, LR(4)/rt, fbin0, fbint
if ( mod (int(nint(T6)),tscreen) == 0 ) then
write(*,*)
write(*,*) " T_NB T_Myr N M M_ratio Rh Rt Rc&
& Rc_O_Rh RC Rh_O_Rt fbin0 fbint"
write(*,'(2f8.1, i7, f11.2, f8.3, 8f9.3)')AS(1), T6, NTOT, mtot, mtot/mtot0,&
& LR(4), rt, rc, rc/LR(4), AS(13)*Rstar, LR(4)/rt, fbin0, fbint
endif
!
if (debug == 1 ) then
write (*,*)"Writing out arrays. Done."
print*,"*************************************************************"
endif
! Write to radii file.
write(7,'(2f9.2, 10f10.5)') AS(1), T6, ( LR(i),i=1,5 ), rt, rc, rc/LR(3), AS(13)*Rstar, LR(3)/rt
FLUSH(2)
FLUSH(3)
FLUSH(7)
FLUSH(10)
!************************************
call kdtree2_destroy(tree)
deallocate ( AS,BODYS, XS, VS, RADIUS , NAME, KSTAR, ZLMSTY, ASS, BODYSS, XSS, VSS,&
& mydata, list_neighbor_idx, list_neighbor_dis, r )
deallocate (irho, rho, rho2)
deallocate ( del_r, del_v2, nei_BODYS, nei_NAME, L2 )
loop_index = loop_index + 1
ENDDO
close(8)
!****************************************************************
!****************************************************************
contains
subroutine termination ( IO, err)
implicit none
integer,intent(in)::IO, err
real*8::start, finish
if ( err ==0 ) then
write(*,*)
write(*,*) ":-)"
write(*,*) "Normal end of processing of ", input_file
call cpu_time(finish)
write(*,*)
write(*,*)"Time spent was ",finish-start, "sec"
STOP
else if ( err == 1 ) then
write(*,*)
write(*,*) ":-("
write(*,*) "Error in reading main arrays in ", input_file
STOP
else if ( err == 2 ) then
write(*,*)
write(*,*) "Cluster dissolved befor termination time."
write(*,*)
write(*,*) ":-)"
write(*,*) "Normal end of processing of ", input_file
call cpu_time(finish)
write(*,*)
write(*,*)"Time spent was ",finish-start, "sec"
STOP
endif
end subroutine termination
character(100) function sweep_blanks(in_str)
character(100), intent(in) :: in_str
character(100) :: out_str
character :: ch
integer :: j
out_str = " "
do j=1, len_trim(in_str)
! get j-th char
ch = in_str(j:j)
if (ch .ne. " ") then
out_str = trim(out_str) // ch
endif
sweep_blanks = out_str
end do
end function sweep_blanks
subroutine get_model_name ( arg1, arg2, res_init_ntot, res_mtot0 )
implicit none
integer::i
character(len=100) :: arg1
character(len=40) :: arg2
character(len=10) :: arg3, arg4
integer :: res_init_ntot
real*8 :: res_mtot0
call getarg(1, arg1)
call getarg(2, arg2)
call getarg(3, arg3)
call getarg(4, arg4)
read(arg3,*) res_init_ntot ! Converts arg3 to integer
read(arg4,*) res_mtot0 ! Convert arg4 to double precision
write (*,*) arg3, arg4, res_mtot0
end subroutine get_model_name
end program read_nbody