using distributed arrays
Nonlinear Radiative Transport PDE with multigrid in 3d.
Uses 3-dimensional distributed arrays.
A 3-dim simplified Radiative Transport test problem is used, with analytic Jacobian.
Solves the linear systems via multilevel methods
The command line
-tleft <tl>, where <tl> indicates the left Diriclet BC
-tright <tr>, where <tr> indicates the right Diriclet BC
-beta <beta>, where <beta> indicates the exponent in T