Abstract: p HPF is a parallel compiler, which accords with HPF （high performance Fortran） specification. Implementing multi paradigm parallelism based on HPF is the foundation for developing large scale parallel application systems. First detailed in this paper are the parallel programming and executing paradigms in cluster environment, and their performance is analyzed abstractly, including farm parallelism, pipeline parallelism, stream iterative parallelism, basic data parallelism and composite data parallelism. Then their implementations are discussed using task parallel, extrinsic procedure calling, and typical parallel clauses such as FORALL, INDEPENDENT DO in p HPF. Some program examples are also provided and their execution results are analyzed.