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memory hierarchy

   Also found in: Wikipedia 0.06 sec.

The levels of memory in a computer. From fastest to slowest speed, they are:

1. CPU registers
2. L1 cache
3. L2 cache
4. Main memory
5. Virtual memory
6. Disk


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Designed to make parallel performance easily accessible to programmers, a key feature of the architecture is its compiler-managed memory hierarchy and single-threaded approach.
Accesses to the memory system consume both time and energy, stealing software performance and burning energy by moving data through a complex memory hierarchy.
The CT3600 product family integrates up to sixteen SIMD 32-bit DSP engines, eight general-purpose CPUs, 144 programmable I/O pins and a three-tiered memory hierarchy system to accelerate and integrate multimedia infrastructure processing.
 
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