  When installed in each  <A HREF="http://www.cs.wisc.edu/~wwt/cow.html">COW</A> node, Vortex will allow Tempest codes to run with hardware assisted block access control/message dispatch, which allows memory to be shared on a cache-line (32-byte) basis across nodes. The <A HREF="http://www.cs.wisc.edu/~wwt/cow.html">COW</A> + Vortex is referred to as Typhoon-Zero, and is intended as a prototype/feasibilty study for Typhoon, a more sophisticated hardware platform for Tempest codes. The board does not implement any kind of DSM protocol; instead it provides hardware assistance for the Tempest mechanisms, giving the user the freedom to implement whatever policies are desired.  <P>
