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Processor Architecture, Memory Hierarchy and Parallelism

How computing hardware actually executes work: parallel execution units, the cost of memory access relative to arithmetic, contiguous versus scattered access patterns, and the differing characteristics of general-purpose processors, accelerators and reconfigurable logic. It explains why an operation count is not the same as elapsed time.

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Memory Hierarchy in Computer Architecture

The memory hierarchy is a computer architecture principle for organizing storage into multiple tiers (registers, L1/L2/L3 cache, main memory, disk) arranged by an inherent trade-off between speed, ca…