Initial Benchmarks Of The AMD AOCC 5.0 Compiler On 5th Gen EPYC

[brad0]

I don't know how much money AMD expects to make from selling their closed source compiler, but I would guess there is much more to gain from upstreaming it so all customers running OSS could benefit from the added performance.

None of that made any sense and too often people make the most clueless lies.

[lejeczek]

I don't know how much money AMD expects to make from selling their closed source compiler, but I would guess there is much more to gain from upstreaming it so all customers running OSS could benefit from the added performance.

AOCC (& other AMD's tools) is free of charge.

[mbello]

I don't know how much money AMD expects to make from selling their closed source compiler, but I would guess there is much more to gain from upstreaming it so all customers running OSS could benefit from the added performance.

[boboviz]

Too close the release of AOCC with Epyc
I think that performances may be better with AOCC 5.1....

[brad0]

Intel upstreams directly to GCC and LLVM, why would I use an outdated custom compiler just for AMD ???

Intel has their own compiler just as AMD has.

[Avamander]

I'm really surprised that all these improvements haven't made it upstream.

How does it help AMD if these performance gains are left to those few that use AOCC, instead of lifting the entire AMD ecosystem a slight step above the rest?

[Azpegath]

I'm pleasantly surprised by the results, my impression from earlier tests was that the difference was minuscule if at all better. But in this case, it was the leader in every single test, though by little is some.

I have a 3950X, I guess that the improvements won't be that big for me?

[ms178]

It is funny that both AMD and Intel are actually using LLVM/Clang for some time now and add some sugar to their own branded compiler. I wonder if Microsoft will do the same sooner or later with MSVC.

[pokeballs]

I'm of the school of thought that says that you should always use the vendor supplied compiler, even when there is little immediately noticeable difference.

To me AMD went through the trouble of creating this compiler for these processors, use them all the time, in some cases you will see a nice performance gain, in some no gain, but it doesn't look like it hurts performance at all and for the sake of simplicity just use AOCC and call it a day.

Intel upstreams directly to GCC and LLVM, why would I use an outdated custom compiler just for AMD ???

[lejeczek]

It is not looking bad but neither it looks great - but keep them coming, those test results. Thanks!