4 ms·
Bottle necked on the CPU, yes, but probably only on a single (or a small number) of threads on the CPU. Xeon Phi will give you lots of slow threads. For the C
by wandering_logic 10y ago
Bottle necked on the CPU, yes, but probably only on a single (or a small number) of threads on the CPU. Xeon Phi will give you lots of slow threads. For the CPU you'd be better off getting a low-core-count processor with the best clock rate you can find/afford. The gamer-oriented i7 extremes are usually good.
- wandering_logic 10y agoThe main things to look for are a sufficient number of PCI express lanes, a high "turbo" clock speed, and sufficient memory capacity and bandwidth. The E5-2698 v4s used in the DGX-1 have 40 PCI express lanes, a 3.6 GHz turbo clock, and 76.8 GB/s memory bandwidth. So does the Core i7-6900K. (The Core i7-6900K has a max turbo clock of 4 GHz, but fewer cores, and smaller total DRAM capacity than the E5-2698v4 (128GB vs 1536GB).)
- ActsJuvenile 10y agoTrue - I am considering the 3.7 to 4GHz i7 processors as well because of higher clock speed. Some things that are enticing towards the Phi, are 1) 16GB on chip MCDRAM - that is a lot of cache! 2) I can get a copy of Intel Parallel Studio XE compiler and compile Lua and Torch from source code, thus making them use more cores on Phi. I have reached out to Intel AI developers and NVidia cuDNN team to ask their take on it. Let's see what they advise.
- mnbbrown 10y agoDid you ever anything back from the intel or nvidia guys?