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subroutine AdditionalInit_LinearEuler2D_PML(this)implicit none class(LinearEuler2D_PML),intent(inout)::this! Localprocedure(SELF_bcMethod),pointer::bcfunc! Initialise the parent (allocates sigma_x, sigma_y; registers! the CPU PML BC handlers). We immediately overwrite the BC! method pointers with GPU-resident wrappers below.call AdditionalInit_LinearEuler2D_PML_t(this)bcfunc=>hbc2d_NoNormalFlow_LinearEuler2D_PML_GPU_wrappercall this%hyperbolicBCs%RegisterBoundaryCondition(&SELF_BC_NONORMALFLOW,"no_normal_flow",bcfunc)bcfunc=>hbc2d_Radiation_LinearEuler2D_PML_GPU_wrappercall this%hyperbolicBCs%RegisterBoundaryCondition(&SELF_BC_RADIATION,"radiation",bcfunc)endsubroutine AdditionalInit_LinearEuler2D_PML