Programming Environment When Mixing Beowulf And SMP?

mulcher asks: "In a beowulf cluster I want to store (logically) one giant data structure across many nodes and have individual nodes compute in parallel. Each node has SMP so I want to exploit that as well. I have seen C/C++ and Message Passing Interface MPI, however I am also looking for Java and Haskell interfaces, or special parallel languages interfaces. Any suggestions? Also is there anyone out there who has attempted this and can recommend some URLs?"