Intel Sends Out Meteor Lake & Sierra Forest Patches For The GCC Compiler

[phoronix]

Phoronix: Intel Sends Out Meteor Lake & Sierra Forest Patches For The GCC Compiler

Intel has today sent out new compiler patches as they work to get their next-generation processors all set for the open-source GNU Compiler Collection (GCC), including the introduction of some new x86_64 instruction set extensions coming with the high core count Sierra Forest processors...

https://www.phoronix.com/news/Intel-GCC-MTL-Sierra-Forest

[ms178]

No AVX-512 even for Meteor Lake? That's disappointing!

[kylew77]

No AVX-512 even for Meteor Lake? That's disappointing!

Thought so too but it is coming to E cores for sierra forest, that means that the next consumer chip Arrow Lake could include AVX-512.

[coder]

Thought so too but it is coming to E cores for sierra forest,

Huh? Where did you see that?

It makes no sense for them to be adding things like AVX-IFMA, if Sierra Forest also had AVX-512. As the article points out, AVX-512 already has that capability. Otherwise, I'd be hoping Intel was just holding off tipping their hand until the last minute.

[JEBjames]

Michael

Grammar/typo

"The Sierra Forest compiler patches sent out today beyond enabling the "sierraforest" compiler target enable new instructions to be found with the 2024-timed E cores."

should probably be something like

"The Sierra Forest compiler patches sent out today go beyond enabling the "sierraforest" compiler target and enable new instructions found in the 2024-timed E cores."

[jayN]

The new Architecture manual doesn't show any differences between Sierra Forest and Grand Ridge, except that Sierra Forest apparently has an integrated GPU. I believe Grand Ridge was always described as being composed of some type of Gracemont derivative, so perhaps these chips have the same cores.

[coder]

The new Architecture manual doesn't show any differences between Sierra Forest and Grand Ridge, except that Sierra Forest apparently has an integrated GPU.

Well, if Grand Ridge is a Snow Ridge successor, then I wouldn't expect an iGPU as it's targeted at the 5G basestation vertical.

Sierra Forrest is shown in their roadmaps as a new server product tier. I'm a little surprised it has an iGPU, but maybe they're trying to reduce the BoM cost of servers by eliminating the need for a supplementary GPU chip.

https://www.anandtech.com/show/17259...-xeons-in-2024

I believe Grand Ridge was always described as being composed of some type of Gracemont derivative, so perhaps these chips have the same cores.

Yeah, that's a little interesting as it suggests Grand Ridge is either skipping a generation of E-cores or it's 2 generations after Snow Ridge.

BTW, do you see an ISA differences between Sapphire and Emerald Rapids? I forget if Emerald is merely supposed to have Raptor Cove cores, though I'd guess so.

[kylew77]

Huh? Where did you see that?

It makes no sense for them to be adding things like AVX-IFMA, if Sierra Forest also had AVX-512. As the article points out, AVX-512 already has that capability. Otherwise, I'd be hoping Intel was just holding off tipping their hand until the last minute.

Sorry Coder, just misread the article the line "VX-512 world there is already IFMA" threw me for a loop. Sorry.