VX included one i860 processor with a VRAM frame buffer
MVX added a board with 4 more i860's (potentially up to 4 boards with 16 processors)
Inter-processor communications was via dual-port VRAMs with the VRAM port
used for high-speed block transfers.
Multi-processor control was via a message-passing system for the i860 processors
that could also include the host workstation's SPARC processor as well as
networked processor. See "A
visualization programming environment for multicomputers" by Gary
Bishop, Mark Monger, and Paul Ramsey.
VX/MVX intro at SIGGRAPH 1990
Functioning systems were built and software ported, but unfortunately they were never
released as products
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