Interprocedural and intermediate results are stored in a workspace which must be created or re-open via the Select button. The same button is then used to choose a current module. Different views of this module, corresponding to different analyses, can be displayed with the View button. The module code can be transformed using the transform menu.
If default options are not satisfactory, new ones can be chosen with the Options menu. These options are badly documented on-line. See the pipsmake documentation.
It is useful to open the Log window to follow PIPS computation (see the Log button), especially when interprocedural options have been chosen.
On quitting, the workspace can be saved on disk in a consistent way for future use, or destroyed (Ronan: not true!) to terminate the wpips process faster.
Note: a line interface and a Shell interface are also available. The Shell interface is the less user-friendly interface but it also is the safest one because memory corruptions cannot be propagated from on query to the next one, since each of them is an independent Shell process. The line interface is a nice trade-off between the security of the Shell interface and the user-friendliness of the window interface.