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!=======================================================================
!
!
MODULE fly_h
!
!
!=======================================================================
!
!
! Parameter declarations, allocation of array storage, common
! block definitions.
!
!=======================================================================
#ifdef OMP
USE omp_lib
#endif
#ifdef PE2
INTEGER, PARAMETER ::NP=2
#endif
#ifdef PE4
INTEGER, PARAMETER ::NP=4
#endif
#ifdef PE8
INTEGER, PARAMETER ::NP=8
#endif
#ifdef PE16
INTEGER, PARAMETER ::NP=16
#endif
#ifdef PE32
INTEGER, PARAMETER ::NP=32
#endif
#ifdef PE52
INTEGER, PARAMETER ::NP=52
#endif
#ifdef PE56
INTEGER, PARAMETER ::NP=56
#endif
! INTEGER, PARAMETER ::NP=4
!-------------------------------------------------------------------------------
! SPECIFY THE NUMBER OF PEs
!-------------------------------------------------------------------------------
! INTEGER, PARAMETER :: N_PES= 2
INTEGER, PARAMETER :: N_PES= 4
! INTEGER, PARAMETER :: N_PES= 8
! INTEGER, PARAMETER :: N_PES= 10
! INTEGER, PARAMETER :: N_PES= 16
! INTEGER, PARAMETER :: N_PES= 32
! INTEGER, PARAMETER :: N_PES= 48
! INTEGER, PARAMETER :: N_PES= 52
! INTEGER, PARAMETER :: N_PES= 56
! INTEGER, PARAMETER :: N_PES= 100
! INTEGER, PARAMETER :: N_PES= 180
! INTEGER, PARAMETER :: N_PES= NP
!-------------------------------------------------------------------------------
! SPECIFY THE AVAILABLE MEMORY (in Mbyte) FOR EACH PE
!-------------------------------------------------------------------------------
INTEGER, PARAMETER :: MEM_PE= 2048
INTEGER, PARAMETER :: MEM_SO= 250 !so occ.
INTEGER, PARAMETER :: MEM_FX= 5 !fix mem occ.
!-------------------------------------------------------------------------------
! SPECIFY the nbodsmax DIMENSION (MUST BE EQUAL
! to the number of bodies used (nbodies variable)
!-------------------------------------------------------------------------------
! INTEGER(KIND=4), PARAMETER :: nbodsmax=314432000
! INTEGER(KIND=4), PARAMETER :: nbodsmax=262144000
! INTEGER(KIND=4), PARAMETER :: nbodsmax= 2097152
! INTEGER(KIND=4), PARAMETER :: nbodsmax= 1024
! INTEGER(KIND=4), PARAMETER :: nbodsmax= 16777216
! INTEGER(KIND=4), PARAMETER :: nbodsmax= 32768
INTEGER(KIND=4), PARAMETER :: nbodsmax= 262144
! INTEGER(KIND=4), PARAMETER :: nbodsmax= 512
! INTEGER(KIND=4), PARAMETER :: nbodsmax= 32768000
! INTEGER(KIND=4), PARAMETER :: nbodsmax=512000000
! INTEGER(KIND=4), PARAMETER :: nbodsmax=1000000000
!-------------------------------------------------------------------------------
! SPECIFY THE DIMENSION: maxnterm (max length of IL) and maxilf (max length of
! temporary storage to form IL) (suggested value maxilf=maxnterm*64)
!-------------------------------------------------------------------------------
INTEGER, PARAMETER :: maxnterm= 3000
INTEGER, PARAMETER :: maxilf= maxnterm * 64 !USER def.
!-------------------------------------------------------------------------------
! SPECIFY THE COMMUNICATION MPI PARAMETERS
!-------------------------------------------------------------------------------
! INTEGER :: ind_pe
INTEGER :: ind_loc,ind_pe_1,ind_loc_1,ind_pe_2,ind_loc_2
INTEGER, SAVE :: me,NPES,PE0=0, lpes
INTEGER :: NLONG,PE_indx
! INTEGER :: ind_pe,ind_loc,ind_pe_1,ind_loc_1,ind_pe_2,ind_loc_2
!
!
!-------------------------------------------------------------------------------
! SPECIFY THE ndim DIMENSION (FLY vers. 2.0 : MUST BE EQUAL to 3)
!------------------------------------------------------------------------------
INTEGER(KIND=4), PARAMETER :: ndim=3,nsubcell=2**ndim
!-------------------------------------------------------------------------------
! SPECIFY THE MAXIMUM LEVEL OF THE TREE DIMENSION
!-------------------------------------------------------------------------------
INTEGER, PARAMETER :: nmax_level=100 !maximum number of tree levels
!-------------------------------------------------------------------------------
! SPECIFY THE ncells DIMENSION (SET EQUAL to nbodsmax parameter)
!-------------------------------------------------------------------------------
INTEGER(KIND=4), PARAMETER :: ncells=nbodsmax !ncells = max number of internal cells of the tree
!------------------------------------------------------------------------------
! DOMAIN SUBDIVISION
!------------------------------------------------------------------------------
INTEGER, PARAMETER :: nb_loc=nbodsmax/N_PES+1 ! max number of memory residing local bodies
INTEGER, PARAMETER :: nc_loc=ncells/N_PES+1 ! number of memory residing tree cells
!-------------------------------------------------------------------------------
! OTHER PARAMETER DEFINITIONS
!-------------------------------------------------------------------------------
INTEGER(KIND=4), PARAMETER :: ninterp=32766 ! interpolation parameter
INTEGER, PARAMETER :: nknots=49 ! used for Ewald (period. bound. cond.)
!-------------------------------------------------------------------------------
! GLOBAL DEFINITIONS : REAL
!-------------------------------------------------------------------------------
CHARACTER(LEN=40) , SAVE :: headline
REAL(KIND=8), SAVE, DIMENSION (nb_loc):: mass
REAL(KIND=8), SAVE, DIMENSION (ndim,nb_loc):: pos,vel
REAL(KIND=8), SAVE, DIMENSION (nc_loc):: mass_cell
REAL(KIND=8), SAVE, DIMENSION (ndim,nc_loc):: pos_cell
#ifdef SORT
REAL(KIND=8), SAVE, DIMENSION (ndim,nb_loc):: pos_sort,vel_sort
REAL(KIND=8), SAVE, DIMENSION (ndim,1):: acc
REAL(KIND=8), SAVE, DIMENSION(1:2*ndim-1,1):: quad
#else
REAL(KIND=8), SAVE, DIMENSION (ndim,nb_loc):: pos_rmt
REAL(KIND=8), SAVE, DIMENSION (ndim,nb_loc):: acc_rmt
REAL(KIND=8), SAVE, DIMENSION (ndim,nb_loc):: acc
REAL(KIND=8), SAVE, DIMENSION(1:2*ndim-1,nc_loc):: quad
#endif
REAL(KIND=8),SAVE :: tol,tol2inv,eps,rsize,tnow,tpos,dtime,dtime2
REAL(KIND=8),SAVE :: tiny,one
REAL(KIND=8),SAVE, DIMENSION(ndim) :: rmin
REAL(KIND=8),SAVE :: znow
REAL(KIND=8),SAVE :: alpha
REAL(KIND=8),SAVE :: Omega_cdm,Omega_hdm,Omega_l,om_sum,f_ap
REAL(KIND=8),SAVE :: one_o_alpha,three_o_alpha,alpha2
REAL(KIND=8),SAVE, DIMENSION(0:1+ninterp):: phsmooth,acsmooth
REAL(KIND=8) :: ap,bp
REAL(KIND=8),SAVE :: mass_read
REAL(KIND=8),SAVE, DIMENSION(0:nknots,0:nknots,0:nknots,ndim)::fc
REAL(KIND=8),SAVE, DIMENSION(0:nknots,ndim):: rk
REAL(KIND=8),SAVE, DIMENSION(nmax_level) :: size_level
REAL(KIND=8),SAVE :: L2,Lbox,linv,acc_gx,acc_gy,acc_gz
REAL(KIND=4), SAVE, DIMENSION (100):: z32_ou
REAL(KIND=4), SAVE :: z32_end
INTEGER(KIND=4),SAVE :: nr_z32
!-------------------------------------------------------------------------------
! GLOBAL DEFINITIONS : INTEGER
!-------------------------------------------------------------------------------
INTEGER(KIND=4),SAVE :: root,nbodies,incells
INTEGER(KIND=4),SAVE, DIMENSION(nsubcell,nc_loc)::subp
INTEGER(KIND=4), SAVE :: nsteps,tstep,l_end,lmax,tst_max
INTEGER(KIND=4), SAVE :: next_out,z32_last
INTEGER(KIND=4), SAVE, DIMENSION (nb_loc):: mark_bod_gr
INTEGER(KIND=4), SAVE, DIMENSION (nc_loc):: mark_gr_cell,grouping
INTEGER(KIND=4), SAVE, DIMENSION (nmax_level,2):: cell_ss
INTEGER(KIND=4), SAVE:: ncrit,nbodcrit,cg_loc
INTEGER(KIND=4), SAVE :: halt_sim
INTEGER, SAVE :: chk_file
LOGICAL, SAVE :: usequad,dt_var,POW2,rmt_acc
INTEGER(KIND=4), DIMENSION (nb_loc) :: free_body_pub = 0
!-------------------------------------------------------------------------------
! Definitions specific to input/output.
!-------------------------------------------------------------------------------
INTEGER, PARAMETER:: uterm=6,upars=10,ubodsin=12,ubodsout=13
INTEGER, PARAMETER:: ubodsasc=14, uewgrid=15, uewtab=16
INTEGER, PARAMETER:: upar1=20
INTEGER, PARAMETER:: upar3=23, ubin32=32,upar35=35,ufnames=26
INTEGER(KIND=4), SAVE, DIMENSION(262144) :: ql_pos = 0
INTEGER(KIND=4), SAVE :: n_ql = 0
CHARACTER(LEN=1),SAVE :: inasc,ouasc
CHARACTER(LEN=256),SAVE :: parsfile,ibodfile
CHARACTER(LEN=256),SAVE :: par1file,fpar35,f32,f32_ql,ql_tab
CHARACTER(LEN=256),SAVE :: fewgrid, fewtab, fly_fnames
LOGICAL, SAVE :: wr_out32
!-------------------------------------------------------------------------------
! Miscelaneous
!-------------------------------------------------------------------------------
INTEGER,SAVE :: idisp
REAL(KIND=8),SAVE :: ctota,ctotb,ctotc,ctot_acc_comp,ctot_acc_ex
REAL(KIND=8),SAVE, DIMENSION(3) ::ctot_tree
REAL(KIND=8),SAVE, DIMENSION(N_PES,N_PES) ::rmt_time
REAL(KIND=8),SAVE :: ctot_GS_nt,ctot_TW
REAL(KIND=8),SAVE :: ctot_GS_nt_rmt,ctot_TW_rmt
INTEGER(KIND=4),SAVE :: max_time
INTEGER(KIND=4), SAVE, DIMENSION(N_PES):: nb_res_loc
REAL(KIND=8),SAVE :: pstat,gr_stat
INTEGER(KIND=4),SAVE :: numbod_100, numbod_200,numbod_300, numbod
REAL(KIND=4), SAVE :: hubble
!-------------------------------------------------------------------------------
! Force computation: arrays definitions
!-------------------------------------------------------------------------------
INTEGER(KIND=4),SAVE :: group_access
!-------------------------------------------------------------------------------
! Definitions specific STATISTICAL counting
!-------------------------------------------------------------------------------
!-------------------------------------------------------------------------------
! Definitions specific Fly/Flash interface
!-------------------------------------------------------------------------------
integer flashComm
integer(kind=4), dimension(ndim) :: nZones
!-------------------------------------------------------------------------------
! Definitions specific MPI2
!-------------------------------------------------------------------------------
integer :: ierr,ierror
integer,parameter :: int4=4
integer,parameter :: int8=8
integer,parameter :: real4=4
integer,parameter :: real8=8
integer, SAVE :: win_iblk
!-------------------------------------------------------------------------------
! Definitions specific atomic update
!-------------------------------------------------------------------------------
integer(KIND=4), save, dimension(0:(N_PES*N_PES)-1) :: iblk, iblk2
integer(KIND=4), save, dimension(0:N_PES-1) :: iblk_local
END MODULE fly_h