The Mac Pro is back - finally

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smatovic
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Re: The Mac Pro is back - finally

Post by smatovic » Tue Jun 04, 2019 5:09 pm

Milos wrote:
Tue Jun 04, 2019 4:42 pm
smatovic wrote:
Tue Jun 04, 2019 12:04 pm
Milos wrote:
Tue Jun 04, 2019 11:47 am
smatovic wrote:
Tue Jun 04, 2019 7:36 am
Hmm, Apple ships them with an 2*2 AMD Radeon Pro Vega II GPU option,
up to 16384 cores, 128 GB HBM, 56.4 TFLOPs fp32, 112.8 TFLOPs fp16 in sum,
so the new Mac Pro competes with Nvidia's DGX-1 Station with 4 Voltas,
and these are pricey, 37K to 52K Euros...

so the question is, which dude will tune LC0 for Apple's AMD Vega II GPU :)

--
Srdja
Considering that dot product in OpenCL is at least 10x slower than in cuDNN, probably no one.
Sources please.

--
Srdja
You can check LC0 benchmarks using cuDNN and NVIDIA RTX cards and using openCL and AMD RX Vega cards.
That shows what a great job Ankan has done.
Who knows what can be gained if some skilled guy takles LC0 for OpenCL on AMD GPUs...

--
Srdja

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M ANSARI
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Re: The Mac Pro is back - finally

Post by M ANSARI » Tue Jun 04, 2019 8:17 pm

Apple always charges about 3 x what you can get with similar hardware and that seems to be about right with this new Mac desktop. All the specs seem impressive but 28 cores ... I don't know but for such a machine that might become outdated as 64 cores might soon become the norm for that type of hardware.

smatovic
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Re: The Mac Pro is back - finally

Post by smatovic » Wed Dec 11, 2019 2:20 pm

Hehe, he is here

https://www.apple.com/shop/buy-mac/mac-pro/tower

What a pity they did not switch to AMD cpus and Nvidia gpus.

--
Srdja

Dann Corbit
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Re: The Mac Pro is back - finally

Post by Dann Corbit » Wed Dec 11, 2019 5:10 pm

There is a group building unauthorized Macs from AMD, including the latest threadrippers.
Of course they are smoking hot.
https://www.google.com/search?client=fi ... XAt1b78tnw
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.

dragontamer5788
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Re: The Mac Pro is back - finally

Post by dragontamer5788 » Wed Dec 11, 2019 5:53 pm

A major advantage to the Mac Pro is that its consistently a Skylake-X CPU + AMD Vega GPU. Anyone writing programs for a Mac Pro can very specifically tailor their application for that combination.

In particular, we know that SkylakeX has PDEP, PEXT, and AVX512 implemented. AMD Vega GPUs have different performance attributes than NVidia. In particular: AMD Vega GPUs are faster at 24-bit multiplication than 32-bit, require far more threads to utilize the GPU, have extremely good bandwidth thanks to the HBM2 RAM but a shallower cache structure and more latency to access that RAM.

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Re: The Mac Pro is back - finally

Post by MikeB » Thu Dec 12, 2019 4:55 am


smatovic
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Re: The Mac Pro is back - finally

Post by smatovic » Thu Dec 12, 2019 4:04 pm

...obviously the new Mac Pro does not play in the same NPS/Dollar league like
systems based on recent AMD Zen CPUs for Stockfish, or Nvidia RTX series for LC0,
but for Video/CGI the quad-GPU deal seems a good one, you get 4 AMD Vega II GPUs
(with each 32 GB HBM) for ~10K $.

--
Srdja

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