The client API follows the GridRPC definition : all diet_ functions are “duplicated” with grpc_ functions. Both diet_initialize/grpc_initialize and diet_finalize/grpc_finalize belong to the GridRPC API.
A problem is managed through a function_handle, that associates a server to a problem name. For compliance with GridRPC DIET accepts diet_function_handle_init, but the server specified in the call will be ignored; DIET is designed to automatically select the best server. The structure allocation is performed through the function diet_function_handle_default.
The function_handle returned is associated to the problem description, its profile, in the call to diet_call.