Page 39 - Multipath MIPS
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Achieving High Performance on Parallel Systems
Computation is only part of the picture
• Memory latency and bandwidth system
CPU
— CPU rates have improved 4x as
fast as memory over last decade
— bridge speed gap using memory
hierarchy
— multicore exacerbates demand
• Interprocessor communication
• Input/output
— I/O bandwidth to disk typically grows linearly with # processors
Image Credit: Bob Colwell, ISCA 1995
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