Problems with Scaling

Table of Contents

Problems with Scaling

Addressing Memory Latency

Tera Multiprocessor (www.tera.com)

Tera Multiprocessor (cont)

Tera Multiprocessor (cont)

Peak Performance vs Sustained Performance

Do you need a cache?

Programming the Tera Multiprocessor

Programming the Tera Multiprocessor (cont)

Compute Bound or IO Bound?

Processor Synchronization

Lock Bottlenecks

Lock Thrashing

More efficient locks

Successful Shared Memory Multiprocessing is Hard

Shared Memory Competitors

Email: reese@erc.msstate.edu

Home Page: http://www.erc.msstate.edu/~reese

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