The SMPI command saves your model in a special format called Mathematical Programming Interface (MPI). MPI is a special format developed by LINDO Systems for representing all classes of mathematical programs -- linear, integer, and nonlinear. This format is not intended for permanent storage of your models. LINDO API users may be interested in this format for exporting models to the LINDO API.

Note:MPI format is a scalar format, so all set-based information is lost. Thus, it is important that you not use this format for permanent storage. Use the SAVE command to permanently save your files for later retrieval.
Note:When exporting a stochastic program to MPI format, LINGO will write a total of four SMPI format files, consisting of a header file, the core model, its stochastic declarations and its time structure.