[ale] CPU recommendations
Jim Kinney
jim.kinney at gmail.com
Mon Oct 14 11:13:14 EDT 2019
Confirm: Intel's fortran compiler produced perfectly working code than
ran flawlessly on a dual CPU Opteron system. Is it as performance
optimized as an Intel CPU? Likely not but I expect it to be very, very
close. Close enough that the cost savings are fully justified.
On Mon, 2019-10-14 at 10:03 -0400, Jeff Hubbs via Ale wrote:
> Confirm/refute: I've been told that in
> this day and age, there's no reason to not use a Ryzen if you
> have
> to use Intel's Fortran compiler.
>
>
>
>
>
>
>
> On 10/14/19 9:13 AM, Calvin Harrigan
> via Ale wrote:
>
>
>
>
> >
> > I've used Nvidia GPUs and AMD processors for
> > years. Never had a problem.
> > I built a ryzen system earlier this year on the
> > cheap. Mb/ram/CPU < 500. I could have gone cheaper, but I
> > wanted 8 cores and some future proofing.
> >
> >
> >
> >
> > On Sun, Oct 13, 2019, 19:15
> > DJ-Pfulio via Ale <ale at ale.org> wrote:
> >
> >
> >
> > > I'm running
> > > a Ryzen 2600 with an nVidia GPU. Works great. I don't
> > > do any
> > >
> > > CUDA stuff. Suppose I could add an old GPU into the
> > > system to
> > > be used
> > >
> > > for GUI stuff, but that isn't my skillset.
> > >
> > >
> > >
> > > I'd be surprised if someone here didn't have both AMD
> > > and
> > > nVidia GPUs in
> > >
> > > the same machine somewhere.
> > >
> > >
> > >
> > > On 10/13/19 4:11 PM, Jeffrey Layton via Ale wrote:
> > >
> > > > Thanks very much! I really appreciate the advice.
> > >
> > > >
> > >
> > > > I'm not a gamer, more of a scientific user/HPC
> > > person. I
> > > will be using
> > >
> > > > NV cards so that's kind of important.
> > >
> > > >
> > >
> > > > BTW - $300 is for the CPU only. :)
> > >
> > > >
> > >
> > > > I'm not too worried about 95W or 65W but thanks for
> > > the
> > >
> > > > tip about the processor models and the power draw.
> > >
> > > >
> > >
> > > > I'm with you - I've upgraded this case at least once.
> > > I'm
> > >
> > > > hoping it will last me a little long :)?? I think it
> > > will.
> > >
> > > >
> > >
> > > > Thanks!
> > >
> > > >
> > >
> > > > Jeff
> > >
> > > >
> > >
> > > >
> > >
> > > > On Sun, Oct 13, 2019 at 1:21 PM DJ-Pfulio via Ale <
> > > ale at ale.org
> > >
> > > > <mailto:ale at ale.org>>
> > > wrote:
> > >
> > > >
> > >
> > > >?? ?? ??+1 for AMD Ryzen.
> > >
> > > >
> > >
> > > >?? ?? ??Is $300 total cost or CPU-only cost?
> > >
> > > >?? ?? ??3600x - $200
> > >
> > > >?? ?? ??3600 - $180
> > >
> > > >?? ?? ??2600 - $115
> > >
> > > >?? ?? ??1600 - $80
> > >
> > > >
> > >
> > > >?? ?? ??I think I could build a system (CPU+RAM+MB)
> > > around a
> > > Ryzen 2600 for $300
> > >
> > > >?? ?? ??(12K+ passmarks).?? That's 6 cores, 12
> > > threads.?? Intel
> > > isn't anywhere
> > >
> > > >?? ?? ??near that price/performance.?? Ryzen APU
> > > models with
> > > onboard GPUs end in
> > >
> > > >?? ?? ??'g', so 2400g.?? I wouldn't want to mix AMD
> > > and nvidia
> > > GPUs on the same
> > >
> > > >?? ?? ??system, but people mix Intel iGPUs with both
> > > all the
> > > time.
> > >
> > > >
> > >
> > > >?? ?? ??I've been reusing the same case, GPU, HDDs,
> > > and all
> > > other stuff for
> > >
> > > >?? ?? ??years, just swapping the CPU+MB usually, but
> > > DDR4
> > > required I get new
> > >
> > > >?? ?? ??RAM.
> > >
> > > >
> > >
> > > >?? ?? ??I think I could do $220 for the Ryzen
> > > 1600+RAM+MB if
> > > I needed to go
> > >
> > > >?? ?? ??cheap.?? That's over 10K passmarks for that
> > > price.
> > >
> > > >
> > >
> > > >?? ?? ??With Ryzen, the 'x' in the model means 95W+.
> > > Without
> > > the 'x', 65W, if
> > >
> > > >?? ?? ??that is important to you.
> > >
> > > >
> > >
> > > >?? ?? ??If you game and that is important, it is
> > > completely
> > > different. If you
> > >
> > > >?? ?? ??need more cores, AMD is the best game the last
> > > few
> > > years.
> > >
> > > >
> > >
> > > >?? ?? ??On 10/13/19 8:43 AM, Jim Kinney via Ale wrote:
> > >
> > > >?? ?? ??> As always, AMD is pretty much "best bang for
> > > the
> > > buck". I'm not
> > >
> > > >?? ?? ??dealing
> > >
> > > >?? ?? ??> with home user gear much these days but the
> > > Ryzen cpu is a fantastic
> > >
> > > >?? ?? ??> value. If you plan to use gpu number
> > > crunchers,
> > > just make sure the x16
> > >
> > > >?? ?? ??> slots are double width apart. Don't skimp on
> > > the
> > > power supply or
> > >
> > > >?? ?? ??case fans.
> > >
> > > >?? ?? ??>
> > >
> > > >?? ?? ??> On October 13, 2019 8:37:17 AM EDT, Jeffrey
> > > Layton via Ale
> > >
> > > >?? ?? ??<ale at ale.org
> > > <mailto:ale at ale.org>>
> > >
> > > >?? ?? ??> wrote:
> > >
> > > >?? ?? ??>
> > >
> > > >?? ?? ??>?? ?? ??Good morning,
> > >
> > > >?? ?? ??>
> > >
> > > >?? ?? ??>?? ?? ??I don't want to start an argument,
> > > particularly on a Sunday
> > >
> > > >?? ?? ??morning,
> > >
> > > >?? ?? ??>?? ?? ??but I'm looking for a new
> > > "workstation" at
> > > home. I haven't built
> > >
> > > >?? ?? ??>?? ?? ??anything in the last few years, so
> > > any help
> > > would be appreciated.
> > >
> > > >?? ?? ??>
> > >
> > > >?? ?? ??>?? ?? ??Someone is loaning me 2xNVIDIA GPUs
> > > that are
> > > x16 PCIe each.
> > >
> > > >?? ?? ??I'd like
> > >
> > > >?? ?? ??>?? ?? ??to have both in a x16 slot physically
> > > and
> > > electrically. Other than
> > >
> > > >?? ?? ??>?? ?? ??that, at least 4cores (more is
> > > better).
> > > Perhaps something with
> > >
> > > >?? ?? ??>?? ?? ??built-in graphics (not always
> > > necessary but
> > > the two NV cards
> > >
> > > >?? ?? ??are not
> > >
> > > >?? ?? ??>?? ?? ??really designed for graphics - mostly
> > > computation). I can always
> > >
> > > >?? ?? ??>?? ?? ??throw in a simple inexpensive GPU.
> > > I'd like
> > > to keep the price
> > >
> > > >?? ?? ??below
> > >
> > > >?? ?? ??>?? ?? ??$300 but I can go a little higher I
> > > think.
> > >
> > > >?? ?? ??>
> > >
> > > >?? ?? ??>?? ?? ??I don't mind AMD or Intel. I don't
> > > mind
> > > having to buy a new MB and
> > >
> > > >?? ?? ??>?? ?? ??memory. With these two cards and a
> > > new CPU,
> > > I'm sure I'll have to
> > >
> > > >?? ?? ??>?? ?? ??buy a new PSU (probably 1kW or
> > > greater since
> > > each GPU is about
> > >
> > > >?? ?? ??300W).
> > >
> > > >?? ?? ??>
> > >
> > > >?? ?? ??>?? ?? ??To get things started, Newegg has a
> > > pretty
> > > good deal on the
> > >
> > > >?? ?? ??>?? ?? ??i7-6800K. 6c/12t, 4 memory channels.
> > > Right
> > > now it's about $324
> > >
> > > >?? ?? ??>?? ??
> > >
> > > >?? ?? ????(
> > > https://www.newegg.com/intel-core-i7-6th-gen-core-i7-6800k/p/N82E16819117649?Item=9SIA4RE7MX7779
> > >
> > > >?? ?? ??>?? ?? ??).
> > >
> > > >?? ?? ??>
> > >
> > > >?? ?? ??>?? ?? ??Thanks for any and all suggestions!
> > >
> > > >
> > >
> > > _______________________________________________
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> >
> >
> >
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--
James P. Kinney III
Every time you stop a school, you will have to build a jail. What you
gain at one end you lose at the other. It's like feeding a dog on his
own tail. It won't fatten the dog.
- Speech 11/23/1900 Mark Twain
http://heretothereideas.blogspot.com/
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