<PT_data>

Main root field of the .spd file. It contains the version number and the name of the problem type.

PT must be replaced by the problem type name.

version - Internal version number.

e.g. if the problemtype is named 'cmas2d_customlib' the main node will be

<cmas2d_customlib_data version='1.0'>

...

</cmas2d_customlib_data>