After Watching this about Milan and the possibility that it will include 15 Chiplets and maybe SMT4, I think [my Imagination] I Have an Idea where AMD is going with it's future(Maybe Custom design?) HPC EPYC design on 7nm+:
1)Each CPU chiplet will be 6C/24T to save space/power while giving similar or better then 8c/16t performance.
2)Adding 4 custom Instinct GPU chiplets.
3)Adding 2 custom AI accelerator [Asics] chiplets.
4)1 I/O chiplet with HBM memory stack.
So the final EPYC Milan(?) can be HPC beast with:
EDIT: I see that there was already great article on such HPC APU design:
So after reading some of it I changed my illustration:
- 48C/192T Zen CPU cores.
- 4 custom Instinct GPUs.
- 2 AI accelerator Asics.
- 1 I/O Chiplet with HBM 3D staking .
No CPU Chiplet ontop of I/O:[Took Vega Pro 20CU image and placed the HBM on top and shrank it to 7nm+ level]
IMO the GPU's could take ~150W + 75W~100W rest of the CPU+I/O= around 250W TDP.
Or CPU Chiplets ontop of I/O:
And 8 Milans could be installed in Cray’s Shasta 1U with Direct Liquid Cooling:
Do you think that such chiplet design could be beneficial for HPC clients?
Last edited by Hwgeek; 05-13-2019 at 12:41 AM.