Init_Tensor3D Subroutine

  subroutine Init_Tensor3D(this,interp,nVar,nElem)
    implicit none
    class(Tensor3D),intent(out) :: this
    type(Lagrange),target,intent(in) :: interp
    integer,intent(in) :: nVar
    integer,intent(in) :: nElem
    ! local
    integer :: i

    this%interp => interp
    this%nVar = nVar
    this%nElem = nElem
    this%N = interp%N
    this%M = interp%M

    allocate(this%interior(1:interp%N+1,1:interp%N+1,1:interp%N+1,1:nelem,1:nvar,1:3,1:3), &
             this%boundary(1:interp%N+1,1:interp%N+1,1:6,1:nelem,1:nvar,1:3,1:3), &
             this%extBoundary(1:interp%N+1,1:interp%N+1,1:6,1:nelem,1:nvar,1:3,1:3))

    allocate(this%meta(1:nVar))
    allocate(this%eqn(1:9*nVar))

    this%interior = 0.0_prec
    this%boundary = 0.0_prec
    this%extBoundary = 0.0_prec

    ! Initialize equation parser
    ! This is done to prevent segmentation faults that arise
    ! when building with amdflang that are traced back to
    ! feqparse_functions.f90 : finalize routine
    ! When the equation parser is not initialized, the
    ! functions are not allocated, which I think are the
    ! source of the segfault - joe@fluidnumerics.com
    do i = 1,4*nvar
      this%eqn(i) = EquationParser('f=0',(/'x','y','z','t'/))
    enddo

    call gpuCheck(hipMalloc(this%interior_gpu,sizeof(this%interior)))
    call gpuCheck(hipMalloc(this%boundary_gpu,sizeof(this%boundary)))
    call gpuCheck(hipMalloc(this%extBoundary_gpu,sizeof(this%extBoundary)))

    call hipblasCheck(hipblasCreate(this%blas_handle))

    call this%UpdateDevice()

  endsubroutine Init_Tensor3D