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Search: Posts Made By: NookieN
Forum: Hardware 2020-11-27, 23:13
Replies: 847
Views: 153,495
Posted By NookieN
I think the short answer is memory bandwidth....

I think the short answer is memory bandwidth. That dual-socket system is quad-channel per socket (assuming you have 8x4GB). So that's ~100GB/s total theoretical system memory bandwidth, which is just...
Forum: Hardware 2020-11-24, 02:22
Replies: 847
Views: 153,495
Posted By NookieN
You're right, I didn't (I guess it's not obvious,...

You're right, I didn't (I guess it's not obvious, though it would be rather silly to build a system like this without populating all channels).

More specific config is: Quad-channel (4x8GiB)...
Forum: Hardware 2020-11-23, 20:28
Replies: 2
Views: 967
Posted By NookieN
This one has some additional details about the...

This one has some additional details about the specs of the cluster:

https://campustechnology.com/articles/2020/11/19/new-texas-am-supercomputer-grace-goes-online-in-december.aspx
Forum: Hardware 2020-11-22, 08:48
Replies: 847
Views: 153,495
Posted By NookieN
Finally getting around to setting up my 10900X...

Finally getting around to setting up my 10900X system. RAM is 3200C16. Benchmark below is stock. I played around with various OCs and as expected they don't make any difference in throughput (but a...
Forum: Hardware 2020-01-04, 21:08
Replies: 178
#1
Views: 40,973
Posted By NookieN
How hot is kinda hot? I wouldn't be concerned...

How hot is kinda hot? I wouldn't be concerned about warm to the touch, but it shouldn't burn you...

That looks like a really nice drive. OTOH you can get a spare M.2 drive and a 4TB backup drive...
Forum: Hardware 2019-10-18, 05:03
Replies: 8
Views: 1,539
Posted By NookieN
That sounds a little slow. One of my systems is...

That sounds a little slow. One of my systems is nearly identical except the CPU is an older 6700K at 4GHz. It gets 5.5ms on that same exponent range (1 worker). I would expect two workers to be...
Forum: Hardware 2019-09-12, 01:56
Replies: 1
Views: 901
Posted By NookieN
It depends on your perspective maybe. At 2.4GHz,...

It depends on your perspective maybe. At 2.4GHz, 15us is, what, 36,000 ticks? If you re-lock to 2.5GHz you should recover the lost time if you can stay at that frequency for more than 360us....
Forum: Hardware 2019-07-09, 04:45
Replies: 33
Views: 3,511
Posted By NookieN
I had a few Seagate Cheetah 10Ks fail 20 years...

I had a few Seagate Cheetah 10Ks fail 20 years ago just because I had a loose hot wire flopping around in my case that might periodically short on them. The nerve of those guys selling me drives than...
Forum: Hardware 2019-07-03, 05:30
Replies: 33
Views: 3,511
Posted By NookieN
I suppose this is off-topic but I'm curious--in...

I suppose this is off-topic but I'm curious--in what usage scenarios would you put a system into hibernate multiple times per day?
Forum: Hardware 2019-07-02, 15:17
Replies: 33
Views: 3,511
Posted By NookieN
Yes, you should always store important data in...

Yes, you should always store important data in more than one location. This also includes SSDs. I have had a SSD fail, and I have coworkers who have had SSDs fail. It's very rare, and as you say they...
Forum: Hardware 2019-04-06, 16:44
Replies: 16
Views: 2,088
Posted By NookieN
I don't think anyone is talking about the...

I don't think anyone is talking about the processor in question running with air cooling.

If you're buying unlocked parts then turbo is irrelevant. For locked parts I guess yes you should expect...
Forum: Hardware 2019-02-24, 18:34
Replies: 1
Views: 1,048
Posted By NookieN
You'll need to share a folder or drive in...

You'll need to share a folder or drive in Windows, or alternately enable Windows administrative shares (e.g. https://tommynation.com/enable-remote-access-administrative-shares-windows-10/). Those...
Forum: Hardware 2019-02-11, 05:33
Replies: 15
Views: 1,915
Posted By NookieN
Question is, if the FFT can fit in the combined...

Question is, if the FFT can fit in the combined L2 and L3, is DRAM access going to be the main bottleneck? Or is it going to be limited in that scenario by the efficiency of Skylake's cache mesh...
Forum: Hardware 2019-02-02, 20:15
Replies: 15
Views: 1,915
Posted By NookieN
While I'm certainly not going to buy one it would...

While I'm certainly not going to buy one it would be interesting to see how prime behaves on it. As we've discussed here previously, a single worker does well on the E5 2699v4 since the whole FFT...
Forum: Hardware 2019-01-20, 21:44
Replies: 6
Views: 938
Posted By NookieN
Yeah, this...

Yeah, this (https://en.wikichip.org/wiki/intel/core_i5/i5-8400#Frequencies) indicates that max freq will drop from 3.9GHz with 4 cores to 3.8GHz with 5/6 cores on that chip. Turbo is dynamic based on...
Forum: Software 2018-12-23, 02:06
Replies: 441
Views: 72,349
Posted By NookieN
Yeah that's a good point, the encoding likely is...

Yeah that's a good point, the encoding likely is slower when Prime is running. I agree that it really depends on your use cases, and that was my point. I would not encourage someone to just turn off...
Forum: Software 2018-12-22, 23:12
Replies: 441
Views: 72,349
Posted By NookieN
If the system is dedicated to Prime95 I would...

If the system is dedicated to Prime95 I would agree. For a system that sees other uses, HT still helps. When I have HT disabled and play a game or encode videos, my ms/iter time in Prime95 goes up by...
Forum: Hardware 2018-11-21, 15:57
Replies: 24
Views: 3,939
Posted By NookieN
Were you using Intel gfx before, or a different...

Were you using Intel gfx before, or a different gfx card?
Forum: Hardware 2018-09-09, 02:09
Replies: 34
Views: 7,932
Posted By NookieN
The CPUs aren't generally "changeable" in an...

The CPUs aren't generally "changeable" in an end-user system. If they were they would run the risk of becoming unusable after a failed or faulty update. CPU makers like to push that risk to some...
Forum: Hardware 2018-09-08, 06:36
Replies: 34
Views: 7,932
Posted By NookieN
That's correct. First of all, it says right on...

That's correct. First of all, it says right on AWS's marketing that the C5 instances support turbo. Turbo and throttling are two sides of the same coin from a logic perspective. Yes unlocked parts...
Forum: Hardware 2018-09-05, 05:21
Replies: 34
Views: 7,932
Posted By NookieN
What does /proc/cpuinfo identify the chip as? I...

What does /proc/cpuinfo identify the chip as? I assume it's an 8124M, which means they have an 8S blade where you get two sockets, giving you 72 threads. The most cores currently in a single Xeon die...
Forum: Hardware 2018-08-18, 16:02
Replies: 18
Views: 3,924
Posted By NookieN
I remember the P4 days when people complained...

I remember the P4 days when people complained that Intel was soldering the headspreader in some attempt to stop overclocking. And then people were complaining that Intel was using PTIM again. Truly...
Forum: Hardware 2018-07-07, 22:44
Replies: 11
Views: 3,067
Posted By NookieN
Never say never, however modern OoO, pipelined...

Never say never, however modern OoO, pipelined cores are good at keeping their transistors busy when they have data to work on. I didn't see much discussion in that article of how that design could...
Forum: PrimeNet 2018-06-17, 18:37
Replies: 9
Views: 2,585
Posted By NookieN
Yeah, actually it was a Blu-ray burner, and it...

Yeah, actually it was a Blu-ray burner, and it had a Ken Burns DVD in it at the time. I think it was just too much burn.
Forum: PrimeNet 2018-06-17, 03:04
Replies: 9
Views: 2,585
Posted By NookieN
It's a 22-core Xeon E5-2696v4. I've mentioned it...

It's a 22-core Xeon E5-2696v4. I've mentioned it before here: http://mersenneforum.org/showthread.php?t=23196&page=2

One worker and queue 3 days of work.



The assignment rules for 0/1/2 say...
Showing results 1 to 25 of 58

 
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