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.
St. Louis County, Missouri. St. Louis County is a county located in the far eastern portion of Missouri. It is bounded by the Mississippi River, the Missouri River, the Meramec River, and the state of Illinois. As of the 2015 Census Bureau population estimate, the population was 1,003,362, making it the most populous county in Missouri.