mersenneforum.org  

Go Back   mersenneforum.org > Great Internet Mersenne Prime Search > Hardware > Cloud Computing

Reply
 
Thread Tools
Old 2020-06-30, 03:49   #969
Fan Ming
 
Oct 2019

2×3×13 Posts
Default

Quote:
Originally Posted by moebius View Post
Thanks I missed that, I will try that later. I let the DC go through before colab throws me out.


2020-06-29 19:35:51 Tesla T4-0 53537243 OK 2000000 (jacobi == -1)
/
Tesla T4 is mainly used for trial factorting(really fast). It's a little bit waste to use it for LL/PRP -- it's not very faster than K80/P4. The fastest GPU for LL/PRP is P100, thus mainly used for LL/PRP. In fact, The speed of K80/P4 is also okay.

BTW, try -nospin option, otherwise the output would be excessive on colab.
Fan Ming is offline   Reply With Quote
Old 2020-06-30, 06:41   #970
moebius
 
moebius's Avatar
 
Jul 2009
Germany

3·5·17 Posts
Default

Quote:
Originally Posted by Fan Ming View Post
Tesla T4 is mainly used for trial factorting(really fast). It's a little bit waste to use it for LL/PRP -- it's not very faster than K80/P4. The fastest GPU for LL/PRP is P100, thus mainly used for LL/PRP. In fact, The speed of K80/P4 is also okay.
Colab ended my runtime at 5:00 AM and deleted my gpuowl savefiles. However, I had saved this on my PC shortly beforehand so that colab couldn't get me. We continue with Tesla K80.

2020-06-30 06:16:48 Tesla K80-0 OpenCL compilation in 0.01 s
2020-06-30 06:16:48 Tesla K80-0 53537243 LL 10500000 loaded: daf6d21a9cf17d2b
2020-06-30 06:20:14 Tesla K80-0 53537243 LL 10600000 19.80%; 2064 us/it; ETA 1d 00:37; 8d6c9cba23eac3a2
2020-06-30 06:23:42 Tesla K80-0 53537243 LL 10700000 19.99%; 2074 us/it; ETA 1d 00:41; 6b9075e74a24a356
2020-06-30 06:27:09 Tesla K80-0 53537243 LL 10800000 20.17%; 2075 us/it; ETA 1d 00:38; 335defcdc4c59d52
2020-06-30 06:30:37 Tesla K80-0 53537243 LL 10900000 20.36%; 2075 us/it; ETA 1d 00:34; ee962f85f121fae0
2020-06-30 06:34:04 Tesla K80-0 53537243 LL 11000000 20.55%; 2075 us/it; ETA 1d 00:31; b6a6e068b4a5fbb9
2020-06-30 06:37:32 Tesla K80-0 53537243 LL 11100000 20.73%; 2075 us/it; ETA 1d 00:28; dfbd758a5964c750
2020-06-30 06:37:32 Tesla K80-0 53537243 OK 11000000 (jacobi == -1)
moebius is online now   Reply With Quote
Old 2020-06-30, 14:43   #971
axn
 
axn's Avatar
 
Jun 2003

10010000101112 Posts
Default A wild EPYC appears

Code:
Architecture:        x86_64
CPU op-mode(s):      32-bit, 64-bit
Byte Order:          Little Endian
CPU(s):              2
On-line CPU(s) list: 0,1
Thread(s) per core:  2
Core(s) per socket:  1
Socket(s):           1
NUMA node(s):        1
Vendor ID:           AuthenticAMD
CPU family:          23
Model:               49
Model name:          AMD EPYC 7B12
Stepping:            0
CPU MHz:             2250.000
BogoMIPS:            4500.00
Hypervisor vendor:   KVM
Virtualization type: full
L1d cache:           32K
L1i cache:           32K
L2 cache:            512K
L3 cache:            16384K
NUMA node0 CPU(s):   0,1
Flags:               fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl xtopology nonstop_tsc cpuid extd_apicid tsc_known_freq pni pclmulqdq ssse3 fma cx16 sse4_1 sse4_2 movbe popcnt aes xsave avx f16c rdrand hypervisor lahf_lm cmp_legacy cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw topoext ssbd ibrs ibpb stibp vmmcall fsgsbase tsc_adjust bmi1 avx2 smep bmi2 rdseed adx smap clflushopt clwb sha_ni xsaveopt xsavec xgetbv1 clzero xsaveerptr arat npt nrip_save umip rdpid
Freshly caught EPYC.

Appears to be about half as fast as Xeons :-(
axn is offline   Reply With Quote
Old 2020-06-30, 15:08   #972
PhilF
 
PhilF's Avatar
 
Feb 2005
Colorado

7258 Posts
Default

Quote:
Originally Posted by axn View Post
Freshly caught EPYC.

Appears to be about half as fast as Xeons :-(
So that one you throw back if you catch one. Thanks for the heads up.
PhilF is offline   Reply With Quote
Old 2020-06-30, 16:03   #973
chalsall
If I May
 
chalsall's Avatar
 
"Chris Halsall"
Sep 2002
Barbados

22×5×11×41 Posts
Default

Quote:
Originally Posted by PhilF View Post
So that one you throw back if you catch one. Thanks for the heads up.
LOL... This really is a bit like fishing and is a function of the type of work being done. (As opposed to phishing, which is an entirely different space...)
chalsall is online now   Reply With Quote
Old 2020-06-30, 19:01   #974
kriesel
 
kriesel's Avatar
 
"TF79LL86GIMPS96gpu17"
Mar 2017
US midwest

1111110010102 Posts
Default

Quote:
Originally Posted by moebius View Post
Colab ended my runtime at 5:00 AM and deleted my gpuowl savefiles. However, I had saved this on my PC shortly beforehand so that colab couldn't get me.
Have you considered using google drive as your working directory? Automatic save from one session to the next.
kriesel is online now   Reply With Quote
Old 2020-06-30, 23:41   #975
moebius
 
moebius's Avatar
 
Jul 2009
Germany

3·5·17 Posts
Thumbs down

Quote:
Originally Posted by kriesel View Post
Have you considered using google drive as your working directory? Automatic save from one session to the next.
Sure, I run gpu owl in /usr/local/bin. The savefiles are saved apparently in a subdirectory of the /content directory. You first have to find out which directory Google colab defines as working directory, apparently /content/drive . It appears as if colab occasionally breaks the connection at runtime so that the file browser cannot be used, which can be negated simply by calling up the page in a new tab.
In any case, the program is still running, even if Google Inc. thinks it could attract paying customers because of its restrictions to its 2nd class commercial hardware.


2020-06-30 23:16:25 Tesla K80-0 53537243 OK 38500000 (jacobi == -1)
2020-06-30 23:19:45 Tesla K80-0 53537243 LL 38700000 72.29%; 1999 us/it; ETA 0d 08:14; 3ae8c4a0dce1f3c9
2020-06-30 23:23:05 Tesla K80-0 53537243 LL 38800000 72.47%; 2000 us/it; ETA 0d 08:11; a2843afc77614d8e
2020-06-30 23:26:25 Tesla K80-0 53537243 LL 38900000 72.66%; 1999 us/it; ETA 0d 08:08; f08fc566607b0c59

/

Last fiddled with by Uncwilly on 2020-07-01 at 14:32
moebius is online now   Reply With Quote
Old 2020-07-01, 08:59   #976
moebius
 
moebius's Avatar
 
Jul 2009
Germany

3×5×17 Posts
Default

Quote:
Originally Posted by kriesel View Post
Have you considered using google drive as your working directory? Automatic save from one session to the next.
Sorry for the foul language in my last post, I tried to modify the Phyton program so that it runs from google drive. However, the savefile folders are still created in the /content/ directory and deleted even after the runtime. I am not very familiar with Phyton and colab, only a bit with C / C ++; Linux. Do you have a hint for me?


import os.path
from google.colab import drive
if not os.path.exists('/content/drive/My Drive'):
drive.mount('/content/drive')
%cd '/content/drive/My Drive/gpuowl-master/'
!chmod 755 '/content/drive/My Drive/gpuowl-master/gpuowl.exe'
!cd '.' && /content/drive/My\ Drive/gpuowl-master/gpuowl.exe -prp 333XXXXXX


Oh yes, I was still assigned a Tesla P100.

2020-07-01 07:35:07 Tesla P100-PCIE-16GB-0 OpenCL compilation in 0.01 s
2020-07-01 07:35:09 Tesla P100-PCIE-16GB-0 333XXXXXX OK 52300000 loaded: blockSize 400, 160953a7a67244b6
2020-07-01 07:35:14 Tesla P100-PCIE-16GB-0 333XXXXXX OK 52300800 15.67%; 3430 us/it; ETA 11d 04:06; 7b9b2b946e50140d (check 1.79s)
2020-07-01 07:40:56 Tesla P100-PCIE-16GB-0 333XXXXXX OK 52400000 15.70%; 3432 us/it; ETA 11d 04:09; e77842f74a72a9a5 (check 1.79s)
2020-07-01 07:46:41 Tesla P100-PCIE-16GB-0 333XXXXXX OK 52500000 15.73%; 3431 us/it; ETA 11d 04:01; 0c2480f5c0259489 (check 1.79s)
moebius is online now   Reply With Quote
Old 2020-07-02, 06:08   #977
bayanne
 
bayanne's Avatar
 
"Tony Gott"
Aug 2002
Yell, Shetland, UK

5·61 Posts
Default

Completed exponents are not being reported from Colab ...

Can you advise?
bayanne is offline   Reply With Quote
Old 2020-07-02, 09:13   #978
moebius
 
moebius's Avatar
 
Jul 2009
Germany

3×5×17 Posts
Thumbs up

I have now logged in with a different Google account and lo and behold, the save, log and result files are created where they belong, in /content/drive/My Drive/gpuowl-master/. Hope they stay there persistent.
Maybe something has been changed in the configuration of colab.
moebius is online now   Reply With Quote
Old 2020-07-02, 10:51   #979
bayanne
 
bayanne's Avatar
 
"Tony Gott"
Aug 2002
Yell, Shetland, UK

30510 Posts
Default

Quote:
Originally Posted by bayanne View Post
Completed exponents are not being reported from Colab ...

Can you advise?
The p-1 factoring exponents are being accepted, but not the TF ones
bayanne is offline   Reply With Quote
Reply

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Notebook enzocreti enzocreti 0 2019-02-15 08:20
Educational Qualifications & Work Experience Raman Lounge 6 2009-02-19 06:59
Ancient notebook won't run Prime95 kwstone Hardware 4 2004-01-15 00:11
v23.5 seems to have activated speedstepping in my notebook?! E_tron Software 9 2003-08-19 08:59
What is your primary educational background? eepiccolo Lounge 8 2002-12-28 21:25

All times are UTC. The time now is 18:52.

Sat Jul 4 18:52:58 UTC 2020 up 101 days, 16:26, 1 user, load averages: 2.58, 2.64, 2.60

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.

This forum has received and complied with 0 (zero) government requests for information.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation.
A copy of the license is included in the FAQ.