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h3. ModelInfo

Tell T3P which mesh file to load and what boundary conditions are used for the different side sets in the mesh file (default: Electric)
{code}
 ModelInfo:  {
  File: coarse.ncdf
  BoundaryCondition:   {
    Electric: 2
    Magnetic: 3 4
    Absorbing: 5 6
   }
 }
{code}

h3. MeshPartitioning

To specify the method to partition the mesh
{code}

   MeshPartitioning:  {
        Method: PARMETIS   //the other option is ZOLTAN
        Zoltan: {     //if the main method is ZOLTAN, this container will provide further zoltan specific options
           Method: RCB
           Dimension: 1
           Partition Direction: Z
        }
   }
{code}

h3. Normal finite 

  element parameters

FiniteElement: {             
    Order: 2                // global order of basis functions (can be 1...6, 2 is recommended)
    CurvedSurfaces: on   
  }

h3. 

h3. Gaussian beam going through a cavity

\*The first step is to provide beam information:
{code}
  LoadingInfo:  {
     Bunch: {
       Type: Gaussian        //Gaussian bunch (the only option)
       Sigma: 2e-3           //Sigma (RMS) size of the bunch
       Nsigmas: 5            //beam occupies the location from -5 sigma to +5 sigma, total of 10 sigmas
       Charge: 1.            //charge
     }
     Symmetry factor: 4      //factor by which to reduce the charge to account for symmetry conditions (monopole on axis: use 4, dipole at X (or Y) offset: use 2 in connection with proper electric boundary conditions in one plane)
     StartPoint: 0. 0. 0.    //StartPoint is the position where the beam enters the structure (typically at low Z values)
     Direction: 0. 0. 1.     //Direction along which the bunch will move, at the speed of light (should be the direction of the normal of the face with BoundaryID)
     BoundaryID: 5           //The boundary ID (sidelist number from Cubit), specifies the boundary through which the bunch enters the structure (should be a flat surface, containing StartPoint)
  }
{code}
\

{code}
  Loading: {
    Type: BeamBoundaryLoading
    Analytical: on
    // Specify the right-handed coordinate system with its Z-axis along the beamline ( CrossProduct(X, Y) = Z = Direction specified above)
    Origin: 0.0 0.0 0.0
    XDirection: 1.0 0.0 0.0     //this is the direction of the beam offset, if any
    YDirection: 0.0 1.0 0.0
    Beampipe radius: 0.04
    Beam offset: 0             //offset in x-direction of the local 2D coordinate system (value needs to be consistent with StartPoint specified above)
  }

{code}

h3. Time Integration Parameters

{code}
  TimeStepping: {
     MaximumTime: 10.e-10  //the maximal time to step
     DT: 2e-12             //delta T
  }
{code}

h3. Wakefield Monitor

<font 

{code}

h3. Point Monitor

To record the field values at specified location
{code}
   Monitor: {
     Type: Point             //point monitor
     Name: monA                                    //an output file called monA.out will be generated
                                                       //it contains: t Hx Hy Hz Ex Ey Ez
     Coordinate:  0.00002, 0.02, 0.1495  //the location
   }
{code}

h3. Power Monitor
{code}

  Monitor: {
    Type: Power
    ReferenceNumber: 4     //which reference surface to monitor
    Name: mymon2
    TimeStart: 0           //when power monitor starts
    TimeEnd:   30.0e-9     //when it ends
    TimeStep:  0.125e-11   //how often it records power density
  }
{code}

h3. Volume Monitor
{code}

  Monitor: {
    Type: Volume
    Name: vol
    TimeStart: 10.e-9          //when volume monitor starts
    TimeEnd:   500.e-9       //when it ends
    TimeStep:  50.e-9         //how often it records volume fields
  }
{code}

h3. CheckPoint

request T3P code to checkpointing itself every certain timesteps so that one can restart T3P.
{code}
  CheckPoint: {
    Action: restart             //default should be restart. If there is no data available, it will have fresh start.
    Ntimesteps: 100           //every 100 times steps, code will checkpoint itself
    Directory: CHECKPOINT   //the default directory to store checkpointing data
  }

{code}

h3. LinearSolver

The options for linear solvers in the implicit timestepping.
{code}
  LinearSolver: {
        Solver:              CG                     //other options include MUMPS if it is compiled in
        Preconditioner:	  CHOLESKY       //other options include DIAGONAL
        PrintFrequency:      50                //if you want print solver convergence history
        QuietMode:              1	        //Set it to 1 if you do not want to print anything
        Tolerance:           1e-10            //relative tolerance
        MaxIterations:       3000            //maxima number of iterations before CG quits
  }

{code}

h3. Load a TEM waveguide mode on a coax port
{code}
 Loading: {
  Type: PortModeLoading  //loading type
  Port:  {
    ReferenceNumber: 3   //port is at reference surface 3
    Origin: 0.0 0.0 -0.011
    XDirection: 1.0 0.0 0.0
    YDirection: 0.0 1.0 0.0
    ESolver: {
      Type: Analytic
      Mode:  {
        WaveguideType: Coax
        ModeType: TEM
        A: 0.0011
        B: 0.0033
      }
    }
  }
  Excitation: {
    Power: 1.
    Pulse: {
      Type: Monochromatic
      Frequency: 10.5e9
      Rise periods: 150
      Fall periods: 150
      T0: 0.
      TMax: 100.e-9
    }
  }
 }
{code}