High Performance Computing 1
Latency and Data Locality
•
Latency
•
System
Sec.
Clocks
•
SGI O2, local DRAM
320 ns
62
•
SGI Origin, remote DRAM
1us
200
•
IBM SP2, remote node
40 us
3,000
•
HTMT system, local DRAM
50 ns
5,000
•
HTMT system, remote memory
200 ns
20,000
•
SGI cluster, remote memory
3 ms
300,000