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Tagged with cpu memory-usage
4
questions
1
vote
4
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Memory Alignment
I want to make sure I understand the concept referred to by alignment:
Is it just a way of making sure that you never have a non-integer number of words? The wikipedia page says in order for an access ...
- 19
3
votes
7
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Is it possible to update exactly 1 byte in RAM?
For example I have a static C++ array {'d', 'o', 'c', 's'}. And I have x86 architecture, with 32-bits length words.
I want to replace letter c with g. As far as I understand, when we make a read ...
- 165
5
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2
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What is a latency-bound and a memory-bound application in HPC?
I understand that in HPC hybrid systems, for instance a MIC architecture, main memory access is much slower than access to data in own cache or in the cache of another core.
I read that HPC MIC ...
- 151
0
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3
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Instruction vs data cache usage
Say I've got a cache memory where instruction and data have different cache memories ("Harvard architecture"). Which cache, instruction or data, is used most often? I mean "most often" as in time, not ...
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