MPI is often compared with Parallel Virtual Machine (PVM), which is a popular distributed environment and message passing system developed in 1989, and which was one of the systems that motivated the need for standard parallel message passing.
Festus is a city in Jefferson County, Missouri, United States. The population was 11,602 at the 2010 census. Festus and its neighbor Crystal City are often collectively known as the Twin Cities; however, they are incorporated separately.
The settlement became part of Greene County, Missouri when that county was organized in 1833. After the northern part of Greene County was ceded to form Polk County, Missouri, the Polk County Court proclaimed the settlement as a city, named it Bolivar, and designated it as the county seat on 10 November 1835.