add_bo_st.f File Reference

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Functions/Subroutines
subroutine	add_bo_st (au, jq, irow, i, j, value)

Function/Subroutine Documentation

add_bo_st()

subroutine add_bo_st	(	real*8, dimension(*), intent(inout)	au,
		integer, dimension(*), intent(in)	jq,
		integer, dimension(*), intent(in)	irow,
		integer, intent(in)	i,
		integer, intent(in)	j,
		real*8, intent(in)	value
	)

!
!     stores the boundary stiffness coefficient (i,j) with value "value"
!     in the stiffness matrix stored in spare matrix format
!
      implicit none
!
      integer jq(*),irow(*),i,j,ipointer,id
!
      real*8 au(*),value
!
      intent(in) jq,irow,i,j,value
!
      intent(inout) au
!
      call nident(irow(jq(j)),i,jq(j+1)-jq(j),id)
!
      ipointer=jq(j)+id-1
!
      if(irow(ipointer).ne.i) then
c         write(*,*) i,j,ipointer,irow(ipointer)
         write(*,*) '*ERROR in add_bo_st: coefficient should be 0'
         call exit(201)
      else
         au(ipointer)=au(ipointer)+value
      endif
!
      return