mem_alloc_z_2d Subroutine

      SUBROUTINE mem_alloc_z_2d(mem, sizes, mem_type)
     !! Allocates memory

         COMPLEX(kind=real_8), DIMENSION(:, :), POINTER      :: mem
        !! memory to allocate
         INTEGER, DIMENSION(2), INTENT(IN)     :: sizes
        !! length of elements to allocate
         TYPE(dbcsr_memtype_type), INTENT(IN)  :: mem_type
        !! memory type
         CHARACTER(len=*), PARAMETER :: routineN = 'mem_alloc_z_2d'
         INTEGER                               :: error_handle
!   ---------------------------------------------------------------------------

         IF (careful_mod) &
            CALL timeset(routineN, error_handle)

         IF (mem_type%acc_hostalloc) THEN
            DBCSR_ABORT("Accelerator hostalloc not supported for 2D arrays.")
            !CALL acc_hostmem_allocate(mem, n, mem_type%acc_stream)
         ELSE IF (mem_type%mpi) THEN
            DBCSR_ABORT("MPI allocate not supported for 2D arrays.")
            !CALL mp_allocate(mem, n)
         ELSE
            ALLOCATE (mem(sizes(1), sizes(2)))
         END IF

         IF (careful_mod) &
            CALL timestop(error_handle)
      END SUBROUTINE mem_alloc_z_2d