PPT Slide
Applications Scalability Driven Requirements
High Performance Machine Interconnect
Bandwidth - at least 1 B/F
MPI Latency (ping-pong divided by 2) - ~3000 CPU clocks
System Software Scalability
-No large SMPs-- N2 cost and overhead scaling
-No connection based networks - N2 scaling
-Compute Node OS - No time sharing of nodes, No compute node paging, No sockets, No spurious demons, Minimize number of OS initiated interrupts.
Overall System Reliability
System MTBI of 50 hrs or more to get useful work done