Message Passing Interface (MPI) and Apache Spark are two popular frameworks used for parallel and distributed computing.
MPI is a standardized and portable message-passing system designed for parallel computing, while Spark is an open-source analytics engine for processing large amounts of data.
Spark is more convenient but may compromise on performance, while MPI offers flexibility and maximum performance.
Spark is interpretive, offers less control over parallelism, and has JVM startup time implications, while MPI provides full control to the programmer and requires manual code implementation.