<div dir="ltr">Very good article on The Platform:<div><div><br></div><div><a href="http://www.theplatform.net/2015/03/09/intel-crafts-broadwell-xeon-d-for-hyperscale/">http://www.theplatform.net/2015/03/09/intel-crafts-broadwell-xeon-d-for-hyperscale/</a><br></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On 10 March 2015 at 19:42, Mark Hahn <span dir="ltr"><<a href="mailto:hahn@mcmaster.ca" target="_blank">hahn@mcmaster.ca</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Intel recently introduced an interesting product:<br>
Xeon D is a Broadwell (Haswell shrink) SoC.<br>
<br>
It only has 8 cores, not high-clocked and only 2 dimm channels, so it's definitely not at the same level of fat-node goodness as an e5-26xx v3. But for 45W, you also get 2x onboard 10Gb!<br>
<br>
Anyone working on an HPC system based on these quite compact building blocks? the SoC also has stuff like PCIe and SATA,<br>
which is why a lot of the coverage is calling it a chip for desktop NAS, etc. But for HPC purposes, the CPU is quite decent, memory balance is reasonable, and it's hard<br>
to argue with two free 10G...<br>
<br>
On that topic, I've read some work recently on performance tuning of Intel 10G, but not in an HPC context. Is 10G still<br>
sucking for MPI latency? (SFP+ DA noticably better than 10GbT?)<br>
<br>
If you're thinking of saying "why bother with an x86_64 SoC<br>
when you can get a 64b Atom SoC", well, can you? (for cheap,<br>
at commodity volume, etc...) Do any of the surviving Atom SoCs<br>
still have onboard multiport switching fabrics?<br>
<br>
thanks, Mark Hahn.<br>
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</blockquote></div><br></div>