What are the Windows 64-bit parallelization limitations?




(1) With PVM, a 64 bit Windows machine cannot act as a SLAVE. This is a known problem. It can act as a MASTER though. Should be fixed in SP1.
(2)With MPICH, a 64 bit machine can be used both as a SLAVE and a MASTER

*** Note on (2): All OS( including 64 bit LINUX) uses MPICH-1 whereas Windows 64 bit uses MPICH-2. MPICH-2 does not currently support a mixed OS. That means if a Windows 64 bit machine is used as a SLAVE all other machines (MASTER and other SLAVES) must also be Windows 64 supporting MPICH-2.





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