CPU enhancement wish list

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Brown Belt
July 7, 2009 1:01 PM PDT
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#3
Quoting - youjaes

From time to time, I write inline asm code to speed up a number cruncher.  I always try to avoid writing to memory, but I must write temporary arrays to memory as there isn't enough register space.  So, my question is this, are there any plans on adding an array register to Intel CPUs?

Hi James,

The L1 cache is already pretty much what you're asking for. It's incredibly fast, so don't be afraid of reading/writing memory if necessary. There's little chance that a dedicated array register would outperform it.

What's the actual algorithm you're implementing where you see this as being a bottleneck? Chances are that there are far better opportunities to speed it up than actually waiting for a hardware change...

Cheers,

Nicolas

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