[LAU] Bye Bye 32 bit

[Will Godfrey]

On Thu, 28 Dec 2017 17:16:40 -0500
Paul Davis <paul at linuxaudiosystems.com> wrote:

>On Thu, Dec 28, 2017 at 2:11 PM, Jeremy Henty <onepoint at starurchin.org>
>wrote:
>
>>
>> Will Godfrey wrote:
>>  
>> > If I've understood that correctly you  can also ensure that they are
>> > also on the same socket, which apparently improves memory access.  
>>
>> I think  this is what  is meant  by NUMA (Non-Uniform  Memory access).
>>  
>
>​AFAIK, NUMA is dead for everything except a few research systems.
>
>Parallel/multi-processor systems these days are all "symmetric" (all
>processors have symmetrical access to all memory).
>
>NUMA is really, really, really  hard to get right. Why? Cache invalidation.
>Several companies, organizations, etc. have tried. Last time I looked (and
>it has been a while, but I was quite involved with this stuff in the mid
>1990s), everybody failed.​
>

This is proving to be quite fascinating, so thanks everyone for jumping on
board and contributing.

I won't say the mists have cleared, but they certainly seem a lot thinner :)

-- 
Will J Godfrey
http://www.musically.me.uk
Say you have a poem and I have a tune.
Exchange them and we can both have a poem, a tune, and a song.