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memory hierarchy

   Also found in: Wikipedia 0.01 sec.
memory hierarchy
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
memory hierarchy [′mem·rē ′hī·ər‚är·kē]
(computer science)
A ranking of computer memory devices, with devices having the fastest access time at the top of the hierarchy, and devices with slower access times but larger capacity and lower cost at lower levels.


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9 Papers from an October 2006 symposium are presented here in sections on high-performance applications, grid and cluster computing, processor microarchitecture, performance measurement and analysis, memory hierarchy architecture, reconfigurable systems and operating system support for specific applications, and parallel and distributed algorithms, architectures, and interconnection networks.
The memory hierarchy surrounding the instruction units will have to be polymorphic, too, so memory circuits can be converted from L2 cache to a FIFO unit, for instance, when switching from SMP server mode to DSP mode.
The benchmark measures the performance of CPUs, caches, memory hierarchy, and SMP capability from a hardware point of view.
 
 
 
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