archive snowblossom slack mining
prev 2018-11-10 next
2018-11-10 00:38:00
Clueless
32x nvme in a server. $5200
2018-11-10 00:38:33
Clueless
http://www.supermicro.com/en/products/nvme some others Supermicro NVMe Platforms are designed for large throughput gains, substantial latency improvements, and ultra-fast performance for your most demanding workloads.
2018-11-10 00:46:58
Fireduck
At that price, pure ram servers make more sense
2018-11-10 01:10:06
Clueless
@Fireduck perhaps, but it certainly scales.
2018-11-10 01:16:03
Rotonen
you get 4TB ram over 20 channels for that money
2018-11-10 01:16:31
Rotonen
of course it’s LOUD and 25kW of heating
2018-11-10 01:17:16
Fireduck
I would say 512gb ram and make sure it has 10gb nic
2018-11-10 01:17:26
Rotonen
i think the sub1k passively cooled dual slot nvme miner is a decent way to go
2018-11-10 01:17:55
Rotonen
just buy a second one, and a third one, etc.
2018-11-10 02:11:03
Fireduck
right, but that will get 200kh/s tops
2018-11-10 02:11:12
Fireduck
advantage of nvme is easier to go to larger field size
2018-11-10 02:23:13
Clueless
Can't the snowfield be placed in ram multiple times to force usage across more channels? and stuff?
2018-11-10 02:27:04
Fireduck
I don't know the problem there might be mapping which thread is accessing which chunk of memory that lives on what processor.
2018-11-10 08:20:17
Rotonen
yes, consumer platforms do not expose enough in he way of hardware locality mappability
2018-11-10 16:06:07
reuel
hi guys, I'm not well versed in hardware workings, but did I understand correctly that the bottleneck in mining is the part of the motherboard that does the hd I/O
2018-11-10 16:07:44
reuel
so a raspberry pi + ssd is going to be bad?
2018-11-10 16:08:19
Fireduck
Pi 3 can do 10kh/s
2018-11-10 16:09:17
reuel
ah ok
2018-11-10 16:09:47
reuel
looking at the list, that is not optimal for the cost of building then
2018-11-10 16:10:21
Fireduck
if you have an on system, throwing an intel 760p nvme card is probably best bang for buck
2018-11-10 16:12:42
reuel
ok, thinking of building a miner but looking whether I can use some old stuff laying around too ofc :slightly_smiling_face:
2018-11-10 16:14:39
Rotonen
power budget and noise budget are the first things to decide on for home use, IMO
2018-11-10 16:15:37
reuel
noise is from cooling then?
2018-11-10 16:18:03
Fireduck
If you get refurbished server hardware for example, it can be super loud
2018-11-10 16:28:27
Rotonen
yeah, ’can it sound like a jet engine’ is an actual question
2018-11-10 16:29:05
Rotonen
also ’can it draw 25kW from the wall’
2018-11-10 16:31:25
Fireduck
Yep. My R900 is named jet for a reason
2018-11-10 16:33:06
Rotonen
that’s a 5kW heater?
2018-11-10 16:34:05
Fireduck
Only pulls 750w I think
2018-11-10 16:34:23
Rotonen
that’s pretty decent
2018-11-10 16:34:39
Rotonen
i guess you could modernize the fans
2018-11-10 16:35:08
Rotonen
just look at the airflow it expects and get matching noctuas
2018-11-10 16:36:09
Rotonen
and file off the grills and other sharp corners which make for the most of the whines and whistles