n the name of the
type. These types are defined by the application in <i>zoltan_user_data.f90</i>.
If not needed, they must be defined, but can be almost empty as in
<i>fort/zoltan_user_data.f90</i>.
<p>The application may use these types in any appropriate way. If desired,
it can define these types to contain the application's data and use the
type throughout the application. But it is anticipated that in most cases,
the desired type already exists in the application, and the <b>Zoltan_User_Data_x</b>
type