DASH and SHRIMP
DASH
- Hardware implementation of shared memory
- Snooping bus protocol for small number of processors
- Finer-grain parallelism
SHRIMP
- One version using the Intel Paragon backplane bus
- Snoops on the PM bus
- Automatic updates
- Another version using Myricoms Gbit Myrinet
- Virtual Memory Mapped Communication (VMMC)
- 4 microseconds latency user space-user space