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  • # Number of grid levels
    numLevels = 1
    
    # Tolerance of the trust region solver
    tolerance = 1e-12
    
    # Max number of steps of the trust region solver
    maxTrustRegionSteps = 10
    
    # Initial trust-region radius
    initialTrustRegionRadius = 1
    
    # Number of multigrid iterations per trust-region step
    numIt = 200
    
    # Number of presmoothing steps
    nu1 = 3
    
    # Number of postsmoothing steps
    nu2 = 3
    
    # Number of coarse grid corrections
    mu = 1
    
    # Number of base solver iterations
    baseIt = 100
    
    # Tolerance of the multigrid solver
    mgTolerance = 1e-10
    
    # Tolerance of the base grid solver
    baseTolerance = 1e-8
    
    # Measure convergence
    instrumented = 0
    
    ############################
    #   Problem specifications
    ############################
    
    
    # Type of energy we are minimizing
    #energy = harmonic
    energy = chiral_skyrmion
    
    
    #path = /home/sander/data/richards/twosquares/
    
    #gridFile = twosquares0.grid
    
    # 3d problem
    
    #structuredGrid = false
    #path = /home/sander/data/contact/tetracubes/
    #gridFile = tetracube0.grid
    
    structuredGrid = true
    
    lower = -5 -5
    upper =  5  5
    elements = 30 30
    
    # Inverse stereographic projection
    initialIterate = "[2*x[0] / (x[0]*x[0]+x[1]*x[1]+1), 2*x[1] / (x[0]*x[0]+x[1]*x[1]+1), (x[0]*x[0]+x[1]*x[1]-1)/ (x[0]*x[0]+x[1]*x[1]+1)]"