Advance the solution by one time step using the SSPRK(2,2) scheme.
Two-stage, second-order Strong Stability Preserving Runge-Kutta (Shu & Osher, 1988; also known as Heun's method in SSP form). Stage arithmetic lives in stepper_kernels::kernel_ssprk22; this adapter only remaps the 1D state's flat pointers and supplies the rhs callback. CFL stability limit: 1. Also computes the global L2 residual norm for convergence monitoring.
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| type(solver_state_t), | intent(inout), | target | :: | state |