[Libre-soc-bugs] [Bug 821] Servers for running coriolis2 VLSI layout

[bugzilla-daemon at libre-soc.org]

https://bugs.libre-soc.org/show_bug.cgi?id=821

Jacob Lifshay <programmerjake at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |programmerjake at gmail.com

--- Comment #2 from Jacob Lifshay <programmerjake at gmail.com> ---
(In reply to Luke Kenneth Casson Leighton from comment #1)
> Staf the size of the VLSI layout is so large that some monster machines
> are needed.  we assumed you would need one. RED will get two, keep one
> as an asset "on loan" to LIP6.
> 
> the Dell 3660 Tower looks extremely powerful: 12 gen i9, 30 MB L3
> Cache, 128 GB RAM and liquid cooling.

dell has a poor reputation when it comes to cooling and performance and
reusability for desktops: https://youtu.be/UnvxSkqJ8ic

in my opinion we should instead get the parts needed to build our own
computers, because we can get what we need rather than pay a bunch extra to get
something with worse performance and poor reusability later.

I recommend air cooling because if you get the right cooler it has similar
performance to liquid cooling but without the maintenance hassle.
gamersnexus thinks the best cooler is the Scythe FUMA 2, which is an air
cooler.
https://youtu.be/Vex9_84VpYs

the ryzen 5800x3d (not 5800x) has the best single-threaded performance for
things that need lots of cache -- it is faster than the core i9 12900k in that
regard.

currently most ddr5 ram is slower than the best ddr4 ram because ddr5 is still
very new.

assuming we're getting an amd cpu, we'd want 4x 32gb sticks of ddr4 3600mhz c16
ram (c16 is the fastest I can find unless you're ok with 16gb sticks). don't
get higher frequency ram because amd cpus have to switch their fclk to be 2:1
rather than 1:1 which causes higher latency and lower performance. make sure to
enable XMP/DOCP/etc. in the bios otherwise the memory will run at a much lower
than advertised speed.

for a motherboard, more or less any decent am4 motherboard should work, which
one you want will depend on local availability.
see https://www.anandtech.com/show/12072/best-motherboards for a few good ones.

the 5800x3d doesn't have a built-in gpu, so you'll need a separate gpu for
initial setup at least.
just in case you don't know: make sure to plug video cables into the gpu and
not the motherboard's video output...the motherboard's video outputs only work
when your cpu has a built-in gpu.

the computer case will need to support the motherboard and cooler you pick, and
will need good cooling.
gamersnexus best case for 2021 is the fractal torrent, which is compatible with
nearly everything:
https://youtu.be/YtyWUAjmmZA
imho pick the steel side panels variant rather than glass since it's waay more
durable (i could care less about rgb lighting).

you will want storage, i'd pick a >=1tb m.2 ssd, make sure to get one that has
a dram cache otherwise it'll have terrible performance.

-- 
You are receiving this mail because:
You are on the CC list for the bug.