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metis.f90
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module metis5_mod
!
use, intrinsic :: iso_c_binding, only : c_float,c_double
use, intrinsic :: iso_c_binding, only : c_int32_t,c_int64_t
!
implicit none
!
public
!
private :: c_float, c_double, c_int32_t, c_int64_t
!
#ifdef METIS_64_BIT
integer, parameter :: idx_t = c_int64_t
integer, parameter :: real_t = c_double
#else
integer, parameter :: idx_t = c_int32_t
integer, parameter :: real_t = c_float
#endif
!
interface
!===========================================================================
!===========================================================================
function METIS_PartGraphRecursive_C_Interface(nvtxs, ncon, xadj, adjncy, &
vwgt, vsize, adjwgt, nparts, &
tpwgts, ubvec, options, &
objval, part) &
bind(c,name="METIS_PartGraphRecursive")
use, intrinsic :: iso_c_binding, only : c_int
import :: idx_t, real_t
integer(c_int) :: METIS_PartGraphRecursive_C_Interface
integer(idx_t) :: nvtxs
integer(idx_t) :: ncon
integer(idx_t) :: xadj(*)
integer(idx_t) :: adjncy(*)
integer(idx_t) :: vwgt(*)
integer(idx_t) :: vsize(*)
integer(idx_t) :: adjwgt(*)
integer(idx_t) :: nparts
real(real_t) :: tpwgts(*)
real(real_t) :: ubvec(*)
integer(idx_t) :: options(*)
integer(idx_t) :: objval
integer(idx_t) :: part(*)
end function METIS_PartGraphRecursive_C_Interface
!===========================================================================
!===========================================================================
function METIS_PartGraphKway_C_Interface(nvtxs, ncon, xadj, adjncy, vwgt, &
vsize, adjwgt, nparts, tpwgts, &
ubvec, options, objval, part) &
bind(c,name="METIS_PartGraphKway")
use, intrinsic :: iso_c_binding, only : c_int
import :: idx_t, real_t
integer(c_int) :: METIS_PartGraphKway_C_Interface
integer(idx_t) :: nvtxs
integer(idx_t) :: ncon
integer(idx_t) :: xadj(*)
integer(idx_t) :: adjncy(*)
integer(idx_t) :: vwgt(*)
integer(idx_t) :: vsize(*)
integer(idx_t) :: adjwgt(*)
integer(idx_t) :: nparts
real(real_t) :: tpwgts(*)
real(real_t) :: ubvec(*)
integer(idx_t) :: options(*)
integer(idx_t) :: objval
integer(idx_t) :: part(*)
end function METIS_PartGraphKway_C_Interface
!===========================================================================
!===========================================================================
function METIS_PartMeshDual_C_Interface(ne, nn, eptr, eind, vwgt, vsize, &
ncommon, nparts, tpwgts, options, &
objval, epart, npart) &
bind(c,name="METIS_PartMeshDual")
use, intrinsic :: iso_c_binding, only : c_int
import :: idx_t, real_t
integer(c_int) :: METIS_PartMeshDual_C_Interface
integer(idx_t) :: ne
integer(idx_t) :: nn
integer(idx_t) :: eptr(*)
integer(idx_t) :: eind(*)
integer(idx_t) :: vwgt(*)
integer(idx_t) :: vsize(*)
integer(idx_t) :: ncommon
integer(idx_t) :: nparts
real(real_t) :: tpwgts(*)
integer(idx_t) :: options(*)
integer(idx_t) :: objval
integer(idx_t) :: epart(*)
integer(idx_t) :: npart(*)
end function METIS_PartMeshDual_C_Interface
!===========================================================================
!===========================================================================
function METIS_PartMeshNodal_C_Interface(ne, nn, eptr, eind, vwgt, vsize, &
nparts, tpwgts, options, objval, &
epart, npart) &
bind(c,name="METIS_PartMeshNodal")
use, intrinsic :: iso_c_binding, only : c_int
import :: idx_t, real_t
integer(c_int) :: METIS_PartMeshNodal_C_Interface
integer(idx_t) :: ne
integer(idx_t) :: nn
integer(idx_t) :: eptr(*)
integer(idx_t) :: eind(*)
integer(idx_t) :: vwgt(*)
integer(idx_t) :: vsize(*)
integer(idx_t) :: nparts
real(real_t) :: tpwgts(*)
integer(idx_t) :: options(*)
integer(idx_t) :: objval
integer(idx_t) :: epart(*)
integer(idx_t) :: npart(*)
end function METIS_PartMeshNodal_C_Interface
!===========================================================================
!===========================================================================
function METIS_NodeND_C_Interface(nvtxs, xadj, adjncy, vwgt, &
options, perm, iperm) &
bind(c,name="METIS_NodeND")
use, intrinsic :: iso_c_binding, only : c_int
import :: idx_t
integer(c_int) :: METIS_NodeND_C_Interface
integer(idx_t) :: nvtxs
integer(idx_t) :: xadj(*)
integer(idx_t) :: adjncy(*)
integer(idx_t) :: vwgt(*)
integer(idx_t) :: options(*)
integer(idx_t) :: perm(*)
integer(idx_t) :: iperm(*)
end function METIS_NodeND_C_Interface
!===========================================================================
!===========================================================================
function METIS_MeshToDual_C_Interface(ne, nn, eptr, eind, ncommon, &
numflag, r_xadj, r_adjncy) &
bind(c,name="METIS_MeshToDual")
use, intrinsic :: iso_c_binding, only : c_int,c_ptr
import :: idx_t
integer(c_int) :: METIS_MeshToDual_C_Interface
integer(idx_t) :: ne
integer(idx_t) :: nn
integer(idx_t) :: eptr(*)
integer(idx_t) :: eind(*)
integer(idx_t) :: ncommon
integer(idx_t) :: numflag
type(c_ptr) :: r_xadj
type(c_ptr) :: r_adjncy
end function METIS_MeshToDual_C_Interface
!===========================================================================
!===========================================================================
function METIS_MeshToNodal_C_Interface(ne, nn, eptr, eind, numflag, &
r_xadj, r_adjncy) &
bind(c,name="METIS_MeshToNodal")
use, intrinsic :: iso_c_binding, only : c_int,c_ptr
import :: idx_t
integer(c_int) :: METIS_MeshToNodal_C_Interface
integer(idx_t) :: ne
integer(idx_t) :: nn
integer(idx_t) :: eptr(*)
integer(idx_t) :: eind(*)
integer(idx_t) :: numflag
type(c_ptr) :: r_xadj
type(c_ptr) :: r_adjncy
end function METIS_MeshToNodal_C_Interface
!===========================================================================
!===========================================================================
function METIS_SetDefaultOptions_C_Interface(options) &
bind(c,name="METIS_SetDefaultOptions")
use, intrinsic :: iso_c_binding, only : c_int
import :: idx_t
integer(c_int) :: METIS_SetDefaultOptions_C_Interface
integer(idx_t) :: options(*)
end function METIS_SetDefaultOptions_C_Interface
!===========================================================================
!===========================================================================
function METIS_Free(ptr) bind(c,name="METIS_Free")
use, intrinsic :: iso_c_binding, only : c_int,c_ptr
integer(c_int) :: METIS_Free
type(c_ptr), value :: ptr
end function METIS_Free
!===========================================================================
!===========================================================================
end interface
!
private :: METIS_PartGraphRecursive_C_Interface
private :: METIS_PartGraphKway_C_Interface
private :: METIS_PartMeshDual_C_Interface
private :: METIS_PartMeshNodal_C_Interface
private :: METIS_NodeND_C_Interface
private :: METIS_MeshToDual_C_Interface
private :: METIS_MeshToNodal_C_Interface
private :: METIS_SetDefaultOptions_C_Interface
!
!
!
integer, parameter :: METIS_NOPTIONS = 40
!
! rstatus_et
!
enum, bind(c)
enumerator :: METIS_OK = 1
enumerator :: METIS_ERROR_INPUT = -2
enumerator :: METIS_ERROR_MEMORY = -3
enumerator :: METIS_ERROR = -4
end enum
!
! moptype_et
!
enum, bind(c)
enumerator :: METIS_OP_PMETIS
enumerator :: METIS_OP_KMETIS
enumerator :: METIS_OP_OMETIS
end enum
!
! moptions_et
!
enum, bind(c)
enumerator :: METIS_OPTION_PTYPE
enumerator :: METIS_OPTION_OBJTYPE
enumerator :: METIS_OPTION_CTYPE
enumerator :: METIS_OPTION_IPTYPE
enumerator :: METIS_OPTION_RTYPE
enumerator :: METIS_OPTION_DBGLVL
enumerator :: METIS_OPTION_NITER
enumerator :: METIS_OPTION_NCUTS
enumerator :: METIS_OPTION_SEED
enumerator :: METIS_OPTION_NO2HOP
enumerator :: METIS_OPTION_MINCONN
enumerator :: METIS_OPTION_CONTIG
enumerator :: METIS_OPTION_COMPRESS
enumerator :: METIS_OPTION_CCORDER
enumerator :: METIS_OPTION_PFACTOR
enumerator :: METIS_OPTION_NSEPS
enumerator :: METIS_OPTION_UFACTOR
enumerator :: METIS_OPTION_NUMBERING
enumerator :: METIS_OPTION_HELP
enumerator :: METIS_OPTION_TPWGTS
enumerator :: METIS_OPTION_NCOMMON
enumerator :: METIS_OPTION_NOOUTPUT
enumerator :: METIS_OPTION_BALANCE
enumerator :: METIS_OPTION_GTYPE
enumerator :: METIS_OPTION_UBVEC
end enum
!
! mptype_et
!
enum, bind(c)
enumerator :: METIS_PTYPE_RB
enumerator :: METIS_PTYPE_KWAY
end enum
!
! mgtype_et
!
enum, bind(c)
enumerator :: METIS_GTYPE_DUAL
enumerator :: METIS_GTYPE_NODAL
end enum
!
! mctype_et
!
enum, bind(c)
enumerator :: METIS_CTYPE_RM
enumerator :: METIS_CTYPE_SHEM
end enum
!
! miptype_et
!
enum, bind(c)
enumerator :: METIS_IPTYPE_GROW
enumerator :: METIS_IPTYPE_RANDOM
enumerator :: METIS_IPTYPE_EDGE
enumerator :: METIS_IPTYPE_NODE
enumerator :: METIS_IPTYPE_METISRB
end enum
!
! mrtype_et
!
enum, bind(c)
enumerator :: METIS_RTYPE_FM
enumerator :: METIS_RTYPE_GREEDY
enumerator :: METIS_RTYPE_SEP2SIDED
enumerator :: METIS_RTYPE_SEP1SIDED
end enum
!
! mdbglvl_et
!
enum, bind(c)
enumerator :: METIS_DBG_INFO = 1
enumerator :: METIS_DBG_TIME = 2
enumerator :: METIS_DBG_COARSEN = 4
enumerator :: METIS_DBG_REFINE = 8
enumerator :: METIS_DBG_IPART = 16
enumerator :: METIS_DBG_MOVEINFO = 32
enumerator :: METIS_DBG_SEPINFO = 64
enumerator :: METIS_DBG_CONNINFO = 128
enumerator :: METIS_DBG_CONTIGINFO = 256
enumerator :: METIS_DBG_MEMORY = 2048
end enum
!
! mobjtype_et
!
enum, bind(c)
enumerator :: METIS_OBJTYPE_CUT
enumerator :: METIS_OBJTYPE_VOL
enumerator :: METIS_OBJTYPE_NODE
end enum
!
contains
!
!###############################################################################
!
subroutine METIS_PartGraphRecursive(nvtxs,ncon,xadj,adjncy,vwgt,vsize,adjwgt, &
nparts,tpwgts,ubvec,options,objval,part)
!
!.. Use Statements ..
use, intrinsic :: iso_c_binding, only : c_int
!
!.. Formal Arguments ..
integer(idx_t), intent(in) :: nvtxs
integer(idx_t), intent(in) :: ncon
integer(idx_t), intent(in) :: xadj(:)
integer(idx_t), intent(in) :: adjncy(:)
integer(idx_t), allocatable, intent(in) :: vwgt(:)
integer(idx_t), allocatable, intent(in) :: vsize(:)
integer(idx_t), allocatable, intent(in) :: adjwgt(:)
integer(idx_t), intent(in) :: nparts
real(real_t), allocatable, intent(in) :: tpwgts(:)
real(real_t), allocatable, intent(in) :: ubvec(:)
integer(idx_t), intent(in) :: options(:)
integer(idx_t), intent(inout) :: objval
integer(idx_t), intent(inout) :: part(:)
!
!.. Local Scalars ..
integer(c_int) :: ierr
!
continue
!
ierr = METIS_PartGraphRecursive_C_Interface(nvtxs,ncon,xadj,adjncy,vwgt, &
vsize,adjwgt,nparts,tpwgts, &
ubvec,options,objval,part)
!
end subroutine METIS_PartGraphRecursive
!
!###############################################################################
!
subroutine METIS_PartGraphKway(nvtxs,ncon,xadj,adjncy,vwgt,vsize,adjwgt, &
nparts,tpwgts,ubvec,options,objval,part)
!
!.. Use Statements ..
use, intrinsic :: iso_c_binding, only : c_int
!
!.. Formal Arguments ..
integer(idx_t), intent(in) :: nvtxs
integer(idx_t), intent(in) :: ncon
integer(idx_t), intent(in) :: xadj(:)
integer(idx_t), intent(in) :: adjncy(:)
integer(idx_t), allocatable, intent(in) :: vwgt(:)
integer(idx_t), allocatable, intent(in) :: vsize(:)
integer(idx_t), allocatable, intent(in) :: adjwgt(:)
integer(idx_t), intent(in) :: nparts
real(real_t), allocatable, intent(in) :: tpwgts(:)
real(real_t), allocatable, intent(in) :: ubvec(:)
integer(idx_t), intent(in) :: options(:)
integer(idx_t), intent(inout) :: objval
integer(idx_t), intent(inout) :: part(:)
!
!.. Local Scalars ..
integer(c_int) :: ierr
!
continue
!
ierr = METIS_PartGraphKway_C_Interface(nvtxs,ncon,xadj,adjncy,vwgt, &
vsize,adjwgt,nparts,tpwgts, &
ubvec,options,objval,part)
!
end subroutine METIS_PartGraphKway
!
!###############################################################################
!
subroutine METIS_PartMeshDual(ne,nn,eptr,eind,vwgt,vsize,ncommon,nparts, &
tpwgts,options,objval,epart,npart)
!
!.. Use Statements ..
use, intrinsic :: iso_c_binding, only : c_int
!
!.. Formal Arguments ..
integer(idx_t), intent(in) :: ne
integer(idx_t), intent(in) :: nn
integer(idx_t), intent(in) :: eptr(:)
integer(idx_t), intent(in) :: eind(:)
integer(idx_t), intent(in) :: vwgt(:)
integer(idx_t), intent(in) :: vsize(:)
integer(idx_t), intent(in) :: ncommon
integer(idx_t), intent(in) :: nparts
real(real_t), intent(in) :: tpwgts(:)
integer(idx_t), intent(in) :: options(:)
integer(idx_t), intent(inout) :: objval
integer(idx_t), intent(inout) :: epart(:)
integer(idx_t), intent(inout) :: npart(:)
!
!.. Local Scalars ..
integer(c_int) :: ierr
!
continue
!
ierr = METIS_PartMeshDual_C_Interface(ne,nn,eptr,eind,vwgt,vsize, &
ncommon,nparts,tpwgts,options, &
objval,epart,npart)
!
end subroutine METIS_PartMeshDual
!
!###############################################################################
!
subroutine METIS_PartMeshNodal(ne,nn,eptr,eind,vwgt,vsize,nparts, &
tpwgts,options,objval,epart,npart)
!
!.. Use Statements ..
use, intrinsic :: iso_c_binding, only : c_int
!
!.. Formal Arguments ..
integer(idx_t), intent(in) :: ne
integer(idx_t), intent(in) :: nn
integer(idx_t), intent(in) :: eptr(:)
integer(idx_t), intent(in) :: eind(:)
integer(idx_t), intent(in) :: vwgt(:)
integer(idx_t), intent(in) :: vsize(:)
integer(idx_t), intent(in) :: nparts
real(real_t), intent(in) :: tpwgts(:)
integer(idx_t), intent(in) :: options(:)
integer(idx_t), intent(inout) :: objval
integer(idx_t), intent(inout) :: epart(:)
integer(idx_t), intent(inout) :: npart(:)
!
!.. Local Scalars ..
integer(c_int) :: ierr
!
continue
!
ierr = METIS_PartMeshNodal_C_Interface(ne,nn,eptr,eind,vwgt,vsize,nparts, &
tpwgts,options,objval,epart,npart)
!
end subroutine METIS_PartMeshNodal
!
!###############################################################################
!
subroutine METIS_NodeND(nvtxs,xadj,adjncy,vwgt,options,perm,iperm)
!
!.. Use Statements ..
use, intrinsic :: iso_c_binding, only : c_int
!
!.. Formal Arguments ..
integer(idx_t), intent(in) :: nvtxs
integer(idx_t), intent(in) :: xadj(:)
integer(idx_t), intent(in) :: adjncy(:)
integer(idx_t), intent(in) :: vwgt(:)
integer(idx_t), intent(in) :: options(:)
integer(idx_t), intent(inout) :: perm(:)
integer(idx_t), intent(inout) :: iperm(:)
!
!.. Local Scalars ..
integer(c_int) :: ierr
!
continue
!
ierr = METIS_NodeND_C_Interface(nvtxs,xadj,adjncy,vwgt,options,perm,iperm)
!
end subroutine METIS_NodeND
!
!###############################################################################
!
subroutine METIS_MeshToDual(ne,nn,eptr,eind,ncommon,numflag,xadj,adjncy)
!
!.. Use Statements ..
use, intrinsic :: iso_c_binding, only : c_int,c_ptr
use, intrinsic :: iso_c_binding, only : c_f_pointer
!
!.. Formal Arguments ..
integer(idx_t), intent(in) :: ne
integer(idx_t), intent(in) :: nn
integer(idx_t), intent(in) :: eptr(:)
integer(idx_t), intent(in) :: eind(:)
integer(idx_t), intent(in) :: ncommon
integer(idx_t), intent(in) :: numflag
integer(idx_t), allocatable, intent(inout) :: xadj(:)
integer(idx_t), allocatable, intent(inout) :: adjncy(:)
!
!.. Local Scalars ..
integer :: n
integer(c_int) :: ierr
type(c_ptr) :: r_xadj
type(c_ptr) :: r_adjncy
!
!.. Local Pointers ..
integer(idx_t), pointer :: ptr(:) => null()
!
continue
!
if (allocated(xadj)) deallocate ( xadj )
if (allocated(adjncy)) deallocate ( adjncy )
!
ierr = METIS_MeshToDual_C_Interface(ne,nn,eptr,eind,ncommon, &
numflag,r_xadj,r_adjncy)
!
n = ne+1
call c_f_pointer( cptr=r_xadj , fptr=ptr , shape=[n] )
!
allocate ( xadj(1:n) )
xadj(1:n) = ptr(1:n)
ptr => null()
!
n = xadj(ne+1)
call c_f_pointer( cptr=r_adjncy , fptr=ptr , shape=[n] )
!
allocate ( adjncy(1:n) )
adjncy(1:n) = ptr(1:n)
ptr => null()
!
ierr = METIS_Free(r_xadj)
ierr = METIS_Free(r_adjncy)
!
end subroutine METIS_MeshToDual
!
!###############################################################################
!
subroutine METIS_MeshToNodal(ne,nn,eptr,eind,numflag,xadj,adjncy)
!
!.. Use Statements ..
use, intrinsic :: iso_c_binding, only : c_int,c_ptr
use, intrinsic :: iso_c_binding, only : c_f_pointer
!
!.. Formal Arguments ..
integer(idx_t), intent(in) :: ne
integer(idx_t), intent(in) :: nn
integer(idx_t), intent(in) :: eptr(:)
integer(idx_t), intent(in) :: eind(:)
integer(idx_t), intent(in) :: numflag
integer(idx_t), allocatable, intent(inout) :: xadj(:)
integer(idx_t), allocatable, intent(inout) :: adjncy(:)
!
!.. Local Scalars ..
integer :: n
integer(c_int) :: ierr
type(c_ptr) :: r_xadj
type(c_ptr) :: r_adjncy
!
!.. Local Pointers ..
integer(idx_t), pointer :: ptr(:) => null()
!
continue
!
if (allocated(xadj)) deallocate ( xadj )
if (allocated(adjncy)) deallocate ( adjncy )
!
ierr = METIS_MeshToNodal_C_Interface(ne,nn,eptr,eind,numflag,r_xadj,r_adjncy)
!
n = nn+1
call c_f_pointer( cptr=r_xadj , fptr=ptr , shape=[n] )
!
allocate ( xadj(1:n) )
xadj(1:n) = ptr(1:n)
ptr => null()
!
n = xadj(nn+1)
call c_f_pointer( cptr=r_adjncy , fptr=ptr , shape=[n] )
!
allocate ( adjncy(1:n) )
adjncy(1:n) = ptr(1:n)
ptr => null()
!
ierr = METIS_Free(r_xadj)
ierr = METIS_Free(r_adjncy)
!
end subroutine METIS_MeshToNodal
!
!###############################################################################
!
subroutine METIS_SetDefaultOptions(options)
!
!.. Use Statements ..
use, intrinsic :: iso_c_binding, only : c_int
!
!.. Formal Arguments ..
integer(idx_t), intent(inout) :: options(:)
!
!.. Local Scalars ..
integer(c_int) :: ierr
!
continue
!
ierr = METIS_SetDefaultOptions_C_Interface(options)
!
end subroutine METIS_SetDefaultOptions
!
!###############################################################################
!
end module metis5_mod