Intel is bringing HBM to CPUs after all

By: Jacob Marley (jmarley123.delete@this.hotmail.com), November 4, 2020 11:02 pm
Room: Moderated Discussions
Some workloads benefit but most don't...
https://www.pdl.cmu.edu/PDL-FTP/associated/19sigmetrics_dramcharacterization.pdf


David Kanter (dkanter.delete@this.realworldtech.com) on November 4, 2020 6:44 pm wrote:
> tarlinian (tarlinian.delete@this.gmail.com) on November 4, 2020 7:09 am wrote:
> > Foo_ (foo.delete@this.nomail.com) on November 4, 2020 3:24 am wrote:
> > > Michael S (already5chosen.delete@this.yahoo.com) on November 4, 2020 12:45 am wrote:
> > > >
> > > > Crystal Well had both latency and bandwidth advantages.
> > > > HBM is only bandwidth and most likely it would be rare that
> > > > CPU cores will be able to take advantage of extra
> > > > bandwidth.
> > >
> > > 56 cores fighting for a few DRAM channels could be bandwidth-starved on some workloads, no?
> > >
> >
> > SPR is supposed to go to 8 channels of DDR5, right? By that logic
> > existing Epyc 64C SKUs would be horribly bandwidth starved.
>
> Yes, they definitely are.
>
> I think most cores can easily consume around 32B/clock @ 2GHz.
>
> > I agree that the HBM is likely an HPC focused option. But I'd have to
> > imagine the extra bandwidth will improve "loaded" latency numbers.
>
> Yes!
>
> David

< Previous Post in ThreadNext Post in Thread >
TopicPosted ByDate
Intel is bringing HBM to CPUs after allPaul2020/11/03 01:51 AM
  Intel is bringing HBM to CPUs after allAnon2020/11/03 02:40 AM
    Intel is bringing HBM to CPUs after allGroo2020/11/03 08:53 AM
      Intel is bringing HBM to CPUs after allJacob Marley2020/11/03 11:16 PM
  Intel is bringing HBM to CPUs after allRobert Williams2020/11/03 08:47 AM
    Intel is bringing HBM to CPUs after allMichael S2020/11/04 12:45 AM
      Intel is bringing HBM to CPUs after allFoo_2020/11/04 03:24 AM
        Intel is bringing HBM to CPUs after alltarlinian2020/11/04 07:09 AM
          Intel is bringing HBM to CPUs after allanonymou52020/11/04 04:55 PM
          Intel is bringing HBM to CPUs after allDavid Kanter2020/11/04 06:44 PM
            Intel is bringing HBM to CPUs after allJacob Marley2020/11/04 11:02 PM
      Intel is bringing HBM to CPUs after allwumpus2020/11/04 08:35 AM
      Intel is bringing HBM to CPUs after allRobert Williams2020/11/21 04:46 PM
Reply to this Topic
Name:
Email:
Topic:
Body: No Text
How do you spell avocado?