[url]http://dap.xeonphi.com/[/url]

Motherboard:
[url]http://www.serversdirect.com/Components/motherboards/id-T-K1SPE/Supermicro_K1SPE_Xeon_Phi_x200_ATX_motherboard_Socket-P_LGA_3647[/url]

CPU pre-order
[url]http://www.shopblt.com/item/intel-xeon-phi-7210p-64c-1.3g/intel_hj8066702859300.html[/url]

Complete system:
[url]https://www.sabrepc.com/supermicro-sys-5038k-i-knights-landing-workstation.html[/url]

If we were able to get one of these systems up and running for shared development, just how active is the interest/available is George et al.'s time to get prime95 using those avx-512 opcodes?

I am excited about pushing forward the tech but currently lack the time and mental bandwidth for x64 ASM optimization work.

[QUOTE=airsquirrels;440867]If we were able to get one of these systems up and running for shared development, just how active is the interest/available is George et al.'s time to get prime95 using those avx-512 opcodes?

I am excited about pushing forward the tech but currently lack the time and mental bandwidth for x64 ASM optimization work.[/QUOTE]

FWIW, there is one user with a KNL that's been turning in results. So far, error free. Of course it's not tuned for any KNL optimizations, but it is working "out of the box" which is a good sign. 16 matching double-checks. Very encouraging. No benchmark info but I did request it. Question: how does one run the benchmark on mprime? I don't use the Linux version so I'm useless on that front.

Any other benchmarks besides mprime that would be useful to see how it would do? Bear in mind, it's not going to reflect anything with the new CPU features, and the slower per-core clock speeds are probably going to make it seem slower than other CPUs (but with 64-72 cores, it makes up for it in other ways).

I also wasn't sure how the vector pipelines appear to the OS... weren't there multiple AVX pipelines per core? Does it show up as another CPU, like hyperthreaded cores do? Beats me.

Would be interesting to see how the 16GB of HBM does in it's different configurations (as a huge cache, or part of system memory, etc...)

[QUOTE=Madpoo;440888]FWIW, there is one user with a KNL that's been turning in results. So far, error free. Of course it's not tuned for any KNL optimizations, but it is working "out of the box" which is a good sign.[/QUOTE]

Do you know (or can you ask) if said user has the Intel build tools installed? If so, would he or she be willing to offer guest accounts for folks looking to do AVX512/manycore code-dev? I intend to spend more or less all of the Fall adding AVX512 assembly support to Mlucas and playing with manythread performance analysis & tuning on KL.

I filled out the online form for the Xeon Phi developer access program at the link I posted, hope to hear back on Monday (i.e. next business day). But, that sounds like one is getting in line for the opportunity to *buy* an early-release system, and I can't justify shelling out $5000 (roughly whee I expect the proce range to start) - I signed up mainly in hopes of getting info on the price range of a complete system with-build-software-installed.

[QUOTE=Madpoo;440888]I also wasn't sure how the vector pipelines appear to the OS... weren't there multiple AVX pipelines per core? Does it show up as another CPU, like hyperthreaded cores do? Beats me.[/quote]

The OS knows little about the vector pipelines; the software just issues an instruction like

[code]
vgatherqpd zmm30{k1}, [r14+zmm31*8+0x7b]
[/code]

and the hardware scheduler sticks it onto one of the two pipes.

I would guess that a decent way of utilizing this would be hyperthreading. There may be other bottlenecks then though.

George has not posted to this thread so far. We don't know if he has the time and inclination to pursue this now, as opposed to some time in the future.

How was this handled with previous introductions of new architectures? At what point in the cycle did development begin, and is anything different this time? Are the Intel-supplied tools suitable, or is it better to wait for third-party tools to catch up?

[QUOTE=ewmayer;440894]Do you know (or can you ask) if said user has the Intel build tools installed? If so, would he or she be willing to offer guest accounts for folks looking to do AVX512/manycore code-dev?[/QUOTE]

I don't think so... I haven't asked, but if I had to guess, it's not the type of setup that would lend itself to something like that.

Hopefully before too long, one of the regular "enthusiasts" on here will get their hands on one and could make that work. If I had $5K burning a hole in my pocket I'd pick one up for sure but I think my wife would have some words with me. LOL

When I can pick one up for half that, I *might* have a fighting chance since I tend to upgrade my desktop very rarely and it's probably overdue (current one is a 3770K for instance).

[QUOTE=Madpoo;440912]I don't think so... I haven't asked, but if I had to guess, it's not the type of setup that would lend itself to something like that.

Hopefully before too long, one of the regular "enthusiasts" on here will get their hands on one and could make that work. If I had $5K burning a hole in my pocket I'd pick one up for sure but I think my wife would have some words with me. LOL

When I can pick one up for half that, I *might* have a fighting chance since I tend to upgrade my desktop very rarely and it's probably overdue (current one is a 3770K for instance).[/QUOTE]

If you are taking about rare upgrades, mine is a Q6600.

[QUOTE=Madpoo;440912]
Hopefully before too long, one of the regular "enthusiasts" on here will get their hands on one and could make that work. [/QUOTE]

I did the DAP sign up - we will see. If selected I can likely get one in the R&D budget and open some guest account access.