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Search: Posts Made By: Mark Rose
Forum: Software 2020-09-19, 00:26
Replies: 13
Views: 365
Posted By Mark Rose
Normal FP32 has 23 bits for the fraction...

Normal FP32 has 23 bits for the fraction component, 8 for the exponent, and 1 for the sign (+/-). The exponent bits effectively give one more bit of precision, either being all zero or not, meaning...
Forum: Hardware 2020-09-17, 13:16
Replies: 95
Views: 5,324
Posted By Mark Rose
I think so. Basically, in this new series, the...

I think so. Basically, in this new series, the formerly INT32 cores can also do FP32.
Forum: Hardware 2020-09-17, 06:17
Replies: 95
Views: 5,324
Posted By Mark Rose
As expected, awesome at single precision, but...

As expected, awesome at single precision, but about the same speed as a 2080 To for double.

https://babeltechreviews.com/rtx-3080-arrives-ampere-performance-revealed-35-games-benchmarked/4/
Forum: Lounge 2020-09-17, 02:32
Replies: 801
Views: 74,064
Posted By Mark Rose
🐧

🐧
Forum: Hardware 2020-09-16, 18:46
Replies: 95
Views: 5,324
Posted By Mark Rose
Tom's Hardware has the 3080 hitting 80MH/s...

Tom's Hardware has the 3080 hitting 80MH/s running Dagger Hashimoto (ethash), which is little under the Radeon VII. There's talk that maybe it could do 120 MH/s once the miners are patched for...
Forum: Hardware 2020-09-16, 18:22
Replies: 4
Views: 145
Posted By Mark Rose
Carb ice is a scary thing to piston pilots.

Carb ice is a scary thing to piston pilots.
Forum: Software 2020-09-16, 18:20
Replies: 325
Sticky: Prime95 v30.3
Views: 16,013
Posted By Mark Rose
You just want to run it, I use `./mprime -d`....

You just want to run it, I use `./mprime -d`. Then ctrl-c will cause it to quit.
Forum: Software 2020-09-16, 00:38
Replies: 325
Sticky: Prime95 v30.3
Views: 16,013
Posted By Mark Rose
[Tue Sep 15 03:18:13 2020] Iteration:...

[Tue Sep 15 03:18:13 2020]
Iteration: 614960/53591537, Possible error: round off (0.4305230135) > 0.42188
Continuing from last save file.
Disregard last error. Result is reproducible and thus not...
Forum: Marin's Mersenne-aries 2020-09-15, 20:54
Replies: 697
Views: 26,028
Posted By Mark Rose
I grabbed the Cat 1's from the above post.

I grabbed the Cat 1's from the above post.
Forum: Software 2020-09-15, 20:49
Replies: 325
Sticky: Prime95 v30.3
Views: 16,013
Posted By Mark Rose
Don't know if this is a bug or not, but I'm...

Don't know if this is a bug or not, but I'm getting this from an EC2 instance with AVX-512 FFT length 2800K, Pass1=640, Pass2=4480, clm=1, 12 threads:



For what it's worth, mprime choose a...
Forum: Software 2020-09-14, 15:51
Replies: 325
Sticky: Prime95 v30.3
Views: 16,013
Posted By Mark Rose
Could be that you're running a very out of date...

Could be that you're running a very out of date OS without updated TLS certificates used in the HTTPS connection to mersenne.org?
Forum: Hardware 2020-09-12, 23:56
Replies: 821
Views: 119,246
Posted By Mark Rose
Sounds reasonable.

Sounds reasonable.
Forum: Marin's Mersenne-aries 2020-09-11, 01:08
Replies: 697
Views: 26,028
Posted By Mark Rose
I'll skip it. In the future, please register the...

I'll skip it. In the future, please register the exponent so you're not poaching someone!
Forum: Marin's Mersenne-aries 2020-09-10, 21:02
Replies: 697
Views: 26,028
Posted By Mark Rose
Took all but one up to M54119441. One was already...

Took all but one up to M54119441. One was already taken.
Forum: Software 2020-09-09, 05:53
Replies: 325
Sticky: Prime95 v30.3
Views: 16,013
Posted By Mark Rose
I'm glad I decided to test a low disk space...

I'm glad I decided to test a low disk space situation. :smile:



I've never had that one happen to me before. Considering mprime started doing PRP assignments immediately after the LLDC work...
Forum: Software 2020-09-09, 02:52
Replies: 325
Sticky: Prime95 v30.3
Views: 16,013
Posted By Mark Rose
Not in this case. This instance is using the ext4...

Not in this case. This instance is using the ext4 filesystem, with an initial size of 8 GB. I manually grew it. Log files and whatnot can consume a little space, but nothing that would make it think...
Forum: Software 2020-09-09, 02:49
Replies: 325
Sticky: Prime95 v30.3
Views: 16,013
Posted By Mark Rose
This is a brand new installation. I had never...

This is a brand new installation. I had never configured it to be anything other than 6 GB, and I believe I had done that via the menus when I first set it up.

I had initially copied my config...
Forum: Hardware 2020-09-09, 01:47
Replies: 10
Views: 457
Posted By Mark Rose
Personally I'd use LVM instead of mdadm raid 0....

Personally I'd use LVM instead of mdadm raid 0. Then you can change the underlying devices by adding and removing physical volumes from the volume group.
Forum: Software 2020-09-09, 00:29
Replies: 325
Sticky: Prime95 v30.3
Views: 16,013
Posted By Mark Rose
Attached here are the logs. gwnum.txt was...

Attached here are the logs.

gwnum.txt was truncated at 16 KB; I guess running out of space for writes will do that

One strange thing I did notice was that the expected completion at PrimeNet...
Forum: Software 2020-09-09, 00:25
Replies: 325
Sticky: Prime95 v30.3
Views: 16,013
Posted By Mark Rose
local.txt was configured entirely by using the...

local.txt was configured entirely by using the menu system or automatically
prime.txt was primarily configured by me
ls -l.txt shows the system as it is now
screen snapshot.txt shows the error...
Forum: Software 2020-09-08, 21:42
Replies: 325
Sticky: Prime95 v30.3
Views: 16,013
Posted By Mark Rose
So I got some literally free AWS hardware and...

So I got some literally free AWS hardware and over the past week I've been running mprime v30b3 on an m5.12xlarge. The 8 GB disk I gave it filled up at some point during the past week with .residues...
Forum: PrimeNet 2020-09-05, 05:01
Replies: 59
Views: 2,220
Posted By Mark Rose
I guess things have moved on a bit! I usually do...

I guess things have moved on a bit! I usually do DC when I have my systems running.
Forum: PrimeNet 2020-09-04, 21:43
Replies: 59
Views: 2,220
Posted By Mark Rose
I'd wait just a bit, since I know your run...

I'd wait just a bit, since I know your run hardware for a long time, and Zen 3, due out this year, is likely to be a lot better for running Prime95.

Zen 3's big advantage is a unified L3 cache on...
Forum: mersenne.ca 2020-09-04, 21:22
Replies: 431
Views: 24,395
Posted By Mark Rose
I'm already thinking getting a 3080, but I want...

I'm already thinking getting a 3080, but I want to see what AMD is coming out with.
Forum: Marin's Mersenne-aries 2020-08-29, 01:45
Replies: 697
Views: 26,028
Posted By Mark Rose
We match.

We match.
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