Case Studies: Multicore architecture

Case Studies

Multicore architecture

A multi-core design in which a single physical processor contains the core logic of more than one processor. Goal- enables a system to run more task simultaneously achieving greater overall performance

Hyper-threading or multicore?

Early PCs-capable of doing single task at a time. Later multi-threading tech., came into place. Intel’s multi-threading called Hyper-threading

Multi-core processors

Each core has its execution pipeline. No limitation for the number of cores that can be placed in a single chip. Two cores run at slower speeds and lower temperatures. But the combined throughput > single processor. The fundamental relationship b/w freq. and power can be used to multiply the no. of cores from 2 to 4, 8 and even higher

Intel-multicore architecture

Ø Intel Turbo Boost Tech.

Ø Intel Hyper Threading Tech.

Ø Intel  Core Microarchitecture.

Ø Intel Advanced Smart Cache.

Ø Intel Smart Memory Access.

Intel Smart Memory access

Benefits

Ø Multi-core performance.

Ø Dynamic scalability.

Ø Design and performance scalability

Ø Intelligent performance on-demand

Ø Increased performance on Highly-threaded apps.

Ø Scalable shared memory.

Ø Multi-level shared cache.