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World Community Grid Forums
Category: Completed Research
Forum: Say No to Schistosoma Forum
Thread: SN2S: Anyone else seeing the 64bit version racing on Linux compared to Windows? |
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Thread Status: Active Total posts in this thread: 19
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
All the WCG sciences on the Octo HT laptop [W7-64] are about 30-40 percent slower than my Linux Quad, which is fine when consistent. But, for SN2S I noticed a near 2 times slower. Set out today to create a persistent install to a USB 3.0 stick [of the latest Ububntu 12.10 nightly build], and low and behold, the first 8 of SN2S average about 60-65% faster than the same machine does under W7-64.
----------------------------------------Anyway, same device, Linux mean runtime for SN2S: 4.75 hours, Windows 7 does 7.75 hours. And it is confirmed, both execute the x86_64 version. All pulled from the same batch, to make sure we have the nearest apple comparison. Just curious as before dual boot tests on the Linux quad showed little differential.... but that was still with the 32 bit version. P.S. Only 1 validated [don't you like those wingman without cache], where the credit proportional to speed gain kind of confirms that things are indeed faster for this science on Linux. Under W7-64 about 18-20 per hours, under Linux > 34. SN2S_ AAF21679_ 0000248_ 0174_ 0-- ubuntu Pending Validation 10/15/12 08:01:55 10/15/12 13:15:28 4.93 220.7 / 0.0 SN2S_ AAF21679_ 0000248_ 0275_ 0-- ubuntu Pending Validation 10/15/12 08:01:54 10/15/12 13:11:08 4.83 215.6 / 0.0 SN2S_ AAF21679_ 0000248_ 0499_ 0-- ubuntu Pending Validation 10/15/12 08:01:55 10/15/12 12:59:59 4.69 209.9 / 0.0 SN2S_ AAF21679_ 0000248_ 0281_ 0-- ubuntu Pending Validation 10/15/12 08:01:54 10/15/12 12:55:24 4.64 205.2 / 0.0 SN2S_ AAF21679_ 0000248_ 0546_ 0-- ubuntu Pending Validation 10/15/12 08:01:55 10/15/12 12:54:10 4.59 205.2 / 0.0 SN2S_ AAF21679_ 0000248_ 0299_ 0-- ubuntu Pending Validation 10/15/12 08:01:54 10/15/12 12:45:44 4.48 200.4 / 0.0 SN2S_ AAF21679_ 0000248_ 0529_ 0-- ubuntu Pending Validation 10/15/12 08:01:55 10/15/12 12:33:57 4.25 191.1 / 0.0 Updated results... WCGDAWS computes > 35/hour granted... Nee bad for a I7-8 thread laptop on 75 watts at wallsocket. [claims right now always start high on new device registrations] SN2S_ AAF21679_ 0000248_ 0160_ 0-- ubuntu Valid 10/15/12 08:01:54 10/15/12 13:17:18 4.97 222.1 / 170.9 SN2S_ AAF21679_ 0000248_ 0174_ 0-- ubuntu Valid 10/15/12 08:01:55 10/15/12 13:15:28 4.93 220.7 / 171.8 SN2S_ AAF21679_ 0000248_ 0275_ 0-- ubuntu Valid 10/15/12 08:01:54 10/15/12 13:11:08 4.83 215.6 / 168.2 SN2S_ AAF21679_ 0000248_ 0499_ 0-- ubuntu Valid 10/15/12 08:01:55 10/15/12 12:59:59 4.69 209.9 / 166.6 SN2S_ AAF21679_ 0000248_ 0281_ 0-- ubuntu Pending Validation 10/15/12 08:01:54 10/15/12 12:55:24 4.64 205.2 / 0.0 SN2S_ AAF21679_ 0000248_ 0546_ 0-- ubuntu Valid 10/15/12 08:01:55 10/15/12 12:54:10 4.59 205.2 / 171.7 SN2S_ AAF21679_ 0000248_ 0299_ 0-- ubuntu Valid 10/15/12 08:01:54 10/15/12 12:45:44 4.48 200.4 / 174.9 SN2S_ AAF21679_ 0000248_ 0529_ 0-- ubuntu Valid 10/15/12 08:01:55 10/15/12 12:33:57 4.25 191.1 / 150.1 [Edit 1 times, last edit by Former Member at Oct 16, 2012 7:30:41 AM] |
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Crystal Pellet
Veteran Cruncher Joined: May 21, 2008 Post Count: 1403 Status: Offline Project Badges: 
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Will make a comparison between two VM's on the same server.
1. VM Linux 3.2.0-25-generic x86_64 2. VM Windows Server 2008 x64 For Linux I had to pull 2 tasks because the one on Windows was of a later batch 270. Now I have on both a task of batch 270 running. Will report when done. |
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Crystal Pellet
Veteran Cruncher Joined: May 21, 2008 Post Count: 1403 Status: Offline Project Badges:
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SN2S_ AAF21679_ 0000269_ 0693_ 0-- Linux_x64 Valid 15/10/12 14:41:04 15/10/12 20:12:20 4.75 119.3 / 133.9 |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Thanks for checking, CP. For now, ad interim, I've pegged Linux 64 bits as the choice OS for processing SN2S [the USB stick install is ready and stable to use for when away]. Would the techs have development time to investigate and pass this differential, if real and applying wider than just a few machines [maybe their internal detail stats allow them to confirm], this would be an opportunity to speed up this science quite a bit, since Linux is only a 10% or less fraction of participation. The gain is on the widely used Windows 64 platform.
----------------------------------------edit: Of course, it's the question when real, whether Windows has actually the compile libraries and parm choices to get to an app that is matching the Linux speed 1 : 1, and produce a valid result. Need to pay attention to DSFL and GFAM next time as VINA apps, but from recollection during beta, did not notice these to be that much slower or faster. [Edit 1 times, last edit by Former Member at Oct 16, 2012 7:43:03 AM] |
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Crystal Pellet
Veteran Cruncher Joined: May 21, 2008 Post Count: 1403 Status: Offline Project Badges:
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Need to pay attention to DSFL and GFAM next time as VINA apps, but from recollection during beta, did not notice these to be that much slower or faster. Did some DSFL crunching a few weeks ago. Almost nothing left on the result pages. Just waiting for granting 1 pending to turn to Sapphire. IIRC the DSFL on Linux64 is much faster too. Just checked: not only remembrance, also the facts shows that. Found some results in WCGDAWS from late September: Average of 10 Linux64 results 4.51 hours and for 7 Windows64 results 8.24 hours. All on the same hardware. |
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kateiacy
Veteran Cruncher USA Joined: Jan 23, 2010 Post Count: 1027 Status: Offline Project Badges: 
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Very interesting, and good news for me! About a month ago, my husband and I got a new desktop with a AMD A10-5700 Fusion CPU/GPU chip. It's mostly for my husband's use, but it crunches when the computer is not in use.
----------------------------------------When we first got it, I was running nothing but CFSW. The new computer took about 10% longer than my AMD Phenom II machine, which runs under Ubuntu. When I got my sapphire on CFSW, I switched to running all SN2S, plus POEM and now HCC on the GPU. All of a sudden, the A10-5700 was taking about twice as long as the Phenom II, and I wondered what was wrong. Glad to know it's just a Windows-vs-Linux "phenomenon."  |
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Falconet
Master Cruncher Portugal Joined: Mar 9, 2009 Post Count: 3315 Status: Offline Project Badges: 
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I installed Ubuntu 12.10 x64 latest daily build in my Athlon II X2 445 at 3.6GHZ.
----------------------------------------With WIN 7 SP1 X64 one SN2S wu took 4.45 hours. In the Linux, two wu's took 2.72 and 2.71 hours. Quite a difference. Going to try on GFAM to see if the same checks out. SN2S_ AAF21679_ 0000266_ 0198_ 1-- W7 Pending Validation 15-10-2012 13:47:41 15-10-2012 19:43:32 4.45 116.7 / 0.0 SN2S_ AAF21680_ 0000113_ 0645_ 0-- Ubuntux64 Pending Validation 16-10-2012 16:21:02 16-10-2012 19:15:37 2.72 149.8 / 0.0 SN2S_ AAF21680_ 0000114_ 0143_ 0-- Ubuntux64 Pending Validation 16-10-2012 16:21:21 16-10-2012 19:16:47 2.71 149.9 / 0.0  - AMD Ryzen 5 1600AF 6C/12T 3.2 GHz - 85W - AMD Ryzen 5 2500U 4C/8T 2.0 GHz - 28W - AMD Ryzen 7 7730U 8C/16T 3.0 GHz [Edit 2 times, last edit by Falconet at Oct 16, 2012 7:37:50 PM] |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Could as well stick this thread at the top of the DSFL/GFAM forums too and shout it out loud: *ALL* ViNA sciences in 64 bit are way way faster on Linux than Windows-64.
Ran this and expanded the selection. The GFAM did 10-12 hours just before... now six-eight. The DSFL same same, 4.75-5.25, on W7-64 eight-nine. Kind of a 60-65% faster across the ViNA board. So here is... this 8-thread laptop is going to run off the "persistent" Linux USB stick when away/shuteye. Wingman will have to wait a little longer, but since these are Zero Redundant runs 90% of the time (once the 5 valids have been reached per science), few will have too :D Crunch On, P.S. This Quantal is a screamer [launch on Thurday/Friday I think]... they finally got the Unity interface as it should have been when first introduced. Find an app in Dash, right click, and a whole explanatory screen appears. Hit the Super Key and hold, and a window appears with all the possible shortcuts... a greatly shortened learning curve. Of course you need Ubuntu Tweak to really dot the personal i . |
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3rkko
Advanced Cruncher Finland Joined: Aug 2, 2008 Post Count: 105 Status: Offline Project Badges: 
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I have just noticed the same thing.
----------------------------------------AMD X4 955 3.2ghz, Ubuntu 12.10 64bit, is twice as fast as AMD X6 1055T 3.2ghz, Win 7 64bit. In fact the 4-core Linux gets more jobs done per day than the 6-core Windows.  |
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3rkko
Advanced Cruncher Finland Joined: Aug 2, 2008 Post Count: 105 Status: Offline Project Badges:
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I installed Ubuntu in a VirtualBox to see if that would improve my Windows machine's performance. A few tasks have now finished and the results look very promising.
----------------------------------------Virtual Linux is about 10% slower than native Linux but still 40% faster than Windows!  And the performance gain seems to be similar in all three Vina based projects. |
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