This article reads like an AMD advertisement for their EPYC processor line.
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Myths and Urban Legends About Dual-Socket Servers
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Re: Myths and Urban Legends About Dual-Socket Servers
#12If price didn't matter, what would be the best performing CPU available today? With lots of PCIe lanes and high single-thread performance?
For what workload?
Re: Myths and Urban Legends About Dual-Socket Servers
#13This article reads like an AMD advertisement for their EPYC processor line.
It does but it also seems like AMD is saying just buy one CPU, which is weird because you’d think they would want you to buy two to double the profit.
AMD chips have more cores than Intel chips, so pushing for a single powerful CPU means "Buy AMD, not Intel."
Of course they'll like it even better if you bought two AMD chips instead of one, but they probably don't care as much whether you put those chips into one server or two.
Re: Myths and Urban Legends About Dual-Socket Servers
#14This article reads like an AMD advertisement for their EPYC processor line.
It does but it also seems like AMD is saying just buy one CPU, which is weird because you’d think they would want you to buy two to double the profit.
They’re fighting a calcified perception in the corporate IT market that the standard “unit of scale” should be a dual-socket system, because they have a differentiated product in EPYC that shines single-socket.
This likely still remains a major market barrier for them: Outside of the always-be-optimizing hyperscalers, “ordinary” datacenter buyers tend to follow old patterns and rules of thumb from generation to generation.
Re: Myths and Urban Legends About Dual-Socket Servers
#15EPYC brings plenty of NUMA complexity in a single socket unfortunately. If you just want to solve system performance riddles then one socket is plenty. I seem to recall that Facebook publicly announced that they switched their web server systems to 1 socket more than 8 years ago. Since that time Netflix has written several times about how they carefully keep the sides of a 2S server from interfering with each other and I always wondered why they bother, why they don't just saw the system in half and save themselves the trouble.
Re: Myths and Urban Legends About Dual-Socket Servers
#16If price didn't matter, what would be the best performing CPU available today? With lots of PCIe lanes and high single-thread performance?
Probably AMD Turin.
Re: Myths and Urban Legends About Dual-Socket Servers
#17Earlier quoted context omitted.
It does but it also seems like AMD is saying just buy one CPU, which is weird because you’d think they would want you to buy two to double the profit.
AMD chips have more cores than Intel chips, so pushing for a single powerful CPU means "Buy AMD, not Intel." Of course they'll like it even better if you bought two AMD chips instead of one, but they probably don't care as much whether you put those chips into one server or two.
Intel will have more cores shortly.
Re: Myths and Urban Legends About Dual-Socket Servers
#18With chiplets being a thing these days, I guess this is really about where in the overall system is the best place to put the package boundary and socket/pins? And then another approach to that same question would be what apple is doing with in-package ddr5 (which I think I heard amd is copying with a custom line for... Microsoft / azure I think it was?).
Re: Myths and Urban Legends About Dual-Socket Servers
#19This article reads like an AMD advertisement for their EPYC processor line.
It does but it also seems like AMD is saying just buy one CPU, which is weird because you’d think they would want you to buy two to double the profit.
> It does but it also seems like AMD is saying just buy one CPU, which is weird because you’d think they would want you to buy two to double the profit.
The are saying "buy a single EPYC instead of two of our competition".
Re: Myths and Urban Legends About Dual-Socket Servers
#20If you want to inference big LLMs on CPU, you really want those 2x 12 memory channels a Dual EPYC system offers you for decent speeds.