Output options (4)
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.. rst-class:: no-caption-number

.. list-table:: **matadd**
   :header-rows: 0

   * - Value
     - Explanation
   * -  | (D=1)
     -  | Options when different densities are defined for a given material number in the [cell] section.
   * -  | =0
     -  | Use the same material number.
   * -  | =1
     -  | Assign a new material number. The condition for assigning a new material number is determined by whether the density matches that of the material when it was first defined in the [cell] section. Therefore, if you need to set multiple densities for the same material, defining the most common density first can reduce memory usage. Note that it does not affect the calculation results.
.. rst-class:: no-caption-number

.. list-table:: **natural**
   :header-rows: 0

   * - Value
     - Explanation
   * -  | (D=1)
     -  | Options for using the naturally occurring isotopes for nuclear cross section data,  and for writing their ratios in the input echo,  when a given element is defined without the mass number in [material].
   * -  | =0
     -  | Use nuclear cross section data for natural elements,  such as nat\,Fe and nat\,Pb,  in the nuclear data library. [#]_ Isotopes are not output in file(6).
   * -  | =1
     -  | Assign all the naturally occurring isotopes to the given element. Isotopes are not output in file(6).
   * -  | =2
     -  | Assign all the naturally occurring isotopes to the given element. Isotopes are output in file(6).
.. rst-class:: no-caption-number

.. list-table:: **iggcm**
   :header-rows: 0

   * - Value
     - Explanation
   * -  | (D=0)
     -  | Option of geometry warnings.
   * -  | =0
     -  | No echo.
   * -  | =1
     -  | In input echo.
.. rst-class:: no-caption-number

.. list-table:: **icput**
   :header-rows: 0

   * - Value
     - Explanation
   * -  | (D=0)
     -  | Options for recording and outputting CPU time for each calculation process.
   * -  | =0
     -  | Not recorded nor output.
   * -  | =1
     -  | Recorded and output.
.. rst-class:: no-caption-number

.. list-table:: **ipara**
   :header-rows: 0

   * - Value
     - Explanation
   * -  | (D=0)
     -  | Parameter display options.
   * -  | =0
     -  | Only described parameters.
   * -  | =1
     -  | All parameters.
.. rst-class:: no-caption-number

.. list-table:: **nwsors**
   :header-rows: 0

   * - Value
     - Explanation
   * -  | (D=0)
     -  | Write down the information on nwsors source particles in  file(6).
.. rst-class:: no-caption-number

.. list-table:: **gsline**
   :header-rows: 0

   * - Value
     - Explanation
   * -  | (D=2)
     -  | Control parameter to set gslat in all tally sections as the default  setting; gslat=gsline is used in the sections.  When gslat is specified in a tally section, its value is available  in the section.
   * -  | =0
     -  | Does not draw boundary lines of lattice structures.
   * -  | =1
     -  | Draw boundary lines of lattice structures.  Note that this setting is not recommended when voxel phantoms are included.
   * -  | =2
     -  | Does not draw boundary lines of lattice structures in a cell.
   * -  | =3
     -  | Does not draw boundary lines of cells filled by the same material.  The lines are not also drawn in the case other than lattice or  tetrahedron geometry.
        | When gsline=2,3, cell or lattice numbers are not described even  gshow :math:`\ge3` .

When two (or more) cells are defined with the same material number but differing densities,  with the default setting of matadd=1,  such an material will be given a new material number as it is redefined by the other density.  If matadd=0 is set, the cells will have the same material number.  Note that this setting is invalid in the [mat name color], in  which other given material numbers are output as a warning  message in the first part of file(6) (D=phits.out). 

To save calculation time, CPU time for each calculation process,  such as transport, set data, analysis, etc., is not recorded and output by default. To obtain such information, set icput=1. 

Setting ipara=1 enables confirmation of all parameters in the  PHITS code. 

.. [#]  An error message occurs if such a natural element does not exist in the data library.