<?xml version="1.0"?>
<constants name="equilibrium_gs_deviation" identifier="yes" create_mapping_function="yes">
<header>List of boundary condition types for 1D transport solvers</header>
<dd_instance xpath="equilibrium/time_slice/convergence/grad_shafranov_deviation_expression"/>

<int name="absolute_gs_difference" description="Average absolute difference of the Grad-Shafranov equation, &lt;|Del* psi - j_tor*R|&gt;, averaged over the plasma poloidal cross-section" unique="yes">1</int>
<int name="root_mean_square_gs_difference" description="Root mean square difference of the Grad-Shafranov equation, sqrt(&lt;(Del* psi - j_tor*R)^2 &gt;), averaged over the plasma poloidal cross-section" unique="yes">2</int>
<int name="max_absolute_psi_residual" description="Maximum absolute difference over the plasma poloidal cross-section of the poloidal flux between the current and preceding iteration, on fixed grid points" unique="yes">3</int>
<int name="max_absolute_gs_difference_norm" description="Maximum absolute difference of the Grad-Shafranov equation, normalised, max(|Del* psi - j_tor*R|) / max(|Del* psi|), over the plasma poloidal cross-section" unique="yes">4</int>
<int name="max_root_mean_square_gs_difference_norm" description="Root maximum square difference of the Grad-Shafranov equation, normalised, sqrt(max((Del* psi - j_tor*R)^2) / max((Del* psi)^2)), over the plasma poloidal cross-section" unique="yes">5</int>
</constants>