#Test Name: PigCMBFS
import numpy
from model import *
from triangle import *
from setmask import *
from parameterize import *
from setflowequation import *
from solve import *
from MatlabFuncs import *

md=triangle(model(),'../Exp/Pig.exp',11000.)
md=setmask(md,'../Exp/PigShelves.exp','../Exp/PigIslands.exp')
md=parameterize(md,'../Par/Pig.py')

#impose hydrostatic equilibrium (required by Stokes)
md.geometry.base=-md.materials.rho_ice/md.materials.rho_water*md.geometry.thickness
md.geometry.surface=md.geometry.base+md.geometry.thickness
md.extrude(3,1.)
md=setflowequation(md,'FS','all')
md=md.extract(md.mask.groundedice_levelset<0.)

#control parameters
md.inversion.iscontrol=1
md.inversion.control_parameters=['MaterialsRheologyBbar']
md.inversion.min_parameters=10.**6*numpy.ones((md.mesh.numberofvertices,1))
md.inversion.max_parameters=2.*10**9*numpy.ones((md.mesh.numberofvertices,1))
md.inversion.nsteps=2
md.inversion.cost_functions=[101]
md.inversion.cost_functions_coefficients=numpy.ones((md.mesh.numberofvertices,1))
md.inversion.gradient_scaling=10.**8*numpy.ones((md.inversion.nsteps,1))
md.inversion.maxiter_per_step=2.*numpy.ones((md.inversion.nsteps,1))
md.inversion.step_threshold=0.99*numpy.ones((md.inversion.nsteps,1))
md.inversion.vx_obs=md.initialization.vx
md.inversion.vy_obs=md.initialization.vy

md.cluster=generic('name',oshostname(),'np',1)
md=solve(md,'Stressbalance')

#Fields and tolerances to track changes
field_names     =['Gradient','Misfits','MaterialsRheologyB','Pressure','Vel','Vx','Vy']
field_tolerances=[5e-11,5e-11,5e-11,1e-09,1e-11,5e-11,1e-11]
field_values=[\
	md.results.StressbalanceSolution.Gradient1,\
	md.results.StressbalanceSolution.J,\
	md.results.StressbalanceSolution.MaterialsRheologyBbar,\
	md.results.StressbalanceSolution.Pressure,\
	md.results.StressbalanceSolution.Vel,\
	md.results.StressbalanceSolution.Vx,\
	md.results.StressbalanceSolution.Vy,\
]
