PVM is a software system that enables a collection of heterogeneous computers to be used as a coherent and flexible concurrent computational resource.
The individual computers may be shared- or local-memory multiprocessors, vector supercomputers, specialized graphics engines, or scalar workstations, that may be interconnected by a variety of networks, such as ethernet, FDDI. User programs written in C, C++ or Fortran access PVM through library routines.
After installation you find in /usr/doc/packages/pvm/ the documentation as PostScript file pvm-book.ps. Furthermore some examples are packed together in two tar archives. Those archives should be extracted into your HOME directory which leads to ~/pvm3/examples/ or ~/pvm3/gexamples/ in your HOME directory. The call `aimk all' (see manual page aimk(1)) e.g. in ~/pvm3/examples/ compiles the examples for the PVM system.
The PVM web home page is at http://www.epm.ornl.gov/pvm/pvm_home.html .