implicit_initialize.f90

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!!****
!!
!!  NAME
!!     implicit_initialize
!!
!!  FUNCTION
!!     Creates all of the data structures and matrices needed
!!     by the implicit solids solver
!!
!!  INPUTS
!!     none
!!
!!  OUTPUTS
!!     none
!!
!!  USES
!!     MPI
!!
!!****

SUBROUTINE implicit_initialize(global)

  USE implicit_global
  USE rocstar_rocfraccomm

  IMPLICIT NONE

  TYPE(rocfrac_global) :: global
  INTEGER :: i, j, m


!
! Let the code know it will need to initialize the acceleration array
!
  initaccel = .true.

!
! Set up the global to local node mapping
!
  ALLOCATE(global2local(1:gnumnp))
  global2local(:) = -1
  DO i = 1, global%NumNP
     global2local(local2global(i)) = i
  ENDDO


!
! Initialize MPI communications
!
  IF(myid==0) print*,'INITIALIZING COMMUNICATIONS'
  IF (nprocs > 1) THEN
     CALL initcomm1(global)
     CALL initcomm2(global)
  ENDIF
  

!
! Set up some constants
!  
  nstart_km = gnumnp
  DO m = 1, gnumnp
     DO i = 1, global%NumNp
        IF (local2global(i) == m) THEN
           IF (nodeproc(i) == myid) THEN
              nstart_km = min(nstart_km,local2global(i))
           ENDIF
        ENDIF
     ENDDO
  ENDDO
  nstart_km = 3 * (nstart_km - 1) + 1
  nrows_km = 3*lnumnp


!
! Set up the nodal DOF vectors
!
  ALLOCATE(node_flag(1:global%NumNp,1:3))
  ALLOCATE(boundary_value(1:global%NumNp,1:3))
  node_flag(1:global%NumNp,1:3) = 0
  DO i = 1, global%NumNdsBC
     DO j = 1, 3
        IF ( global%BCFlag(j+1,i) == 0 ) THEN
           node_flag(global%BCFlag(1,i),j) = 8
           boundary_value(global%BCFlag(1,i),j) = global%BCvalue(j,i)
        ENDIF
        IF ( global%BCFlag(j+1,i) == 1 ) THEN
           node_flag(global%BCFlag(1,i),j) = 7
           boundary_value(global%BCFlag(1,i),j) = global%BCvalue(j,i)
        ENDIF
     ENDDO
  ENDDO


!
! Create the mass matrix
!
  CALL createm(global)


!
! Create the stiffness matrix
!
  CALL createk(global) 
  

END SUBROUTINE implicit_initialize