Technical News, and SETI@home daily stats for 05.09.2007.

[Rattledagger]

Ups and Downs (Sep 04 2007)

There were periods of feast or famine over the long holiday weekend. In short, we pretty much proved the main bottleneck in our work creation/distribution system is our workunit file server. This hasn't always been the case, but our system is so much different than, say, six months ago. More linux machines than solaris (which mount the NAS file server differently?), faster splitters clogging the pipes (as opposed to the old splitters running on solaris which weren't so "bursty?"), different kinds of workunits (more overflows?), less redundancy (leading to more random access and therefore less cache efficiency?)... the list goes on. There is talk about moving the workunits onto direct attached storage sometime in the near future, and what it would take to make this happen (we have the hardware - it's a matter of time/effort/outage management).

Pretty much for several days in a row the download server was choked as splitters were struggling to create extra work to fill the results-to-send queue. Once the queue was full, they'd simmer down for an hour or two. With less restricted access to the file server the download server throughput would temporarily double. Adding to the wacky shapeof the traffic graph we had another "lost mount" problem on the splitter machine so new work was being created throughout the evening last night. We had the splitters off a bit this morning as Jeff cleaned that up.

We did the usual BOINC database outage today during which we took the time to also reboot thumper (to check that new volumes survived a reboot) and switch over some of our media converters (which carry packets to/from our Hurricane Electric ISP) - you may have noticed the web site disappearing completely for a minute or two.

- Matt

#____Total Work Done____Todays WD_______AWD________overtake________Team-name
01______325.145.151______643.698______525.339______impossible______SETI.USA
02______268.711.699______402.263______324.939______impossible______SETI.Germany
03______114.315.590______255.884______188.224______impossible______L'Alliance Francophone
04______109.063.740_______93.924_______75.595______impossible______BroadbandReports.com Team Starfire
05_______97.624.113______184.964______138.082______impossible______BOINC Synergy
06_______90.530.143______103.624_______79.617______impossible______Czech National Team
07_______80.383.359______109.134_______88.807______impossible______SETI@Netherlands
08_______65.167.256______181.078______152.011______impossible______The Knights Who Say Ni!
09_______44.319.355_______-8.585_______-6.564______6.752 days______OcUK - Overclockers UK
10_______36.653.531_______57.161_______43.636______impossible______Team Art Bell
11_______36.121.996_______17.844_______20.415______impossible______Overclockers.com
12_______32.284.963_______42.279_______40.695______impossible______Team 2ch
13_______32.003.693______-37.110______-24.027______1.332 days______BOINC.Italy
14_______27.333.525_______56.967_______44.392______impossible______The Planetary Society
15_______23.631.368______103.586_______67.291______impossible______Team MacNN
16_______17.483.783________6.002__________263______impossible______Ars Technica
17________4.818.274_______-9.062_______-1.302______3.701 days______Universe Examiners
18_______57.318.687_______90.608_______73.253______notanoption_____TeAm AnandTech
19___________-7.041_______42.190_______23.691__________0 days______Phoenix Rising
20_________-200.523_______42.443_______38.158__________5 days______SETI@Taiwan
21_______-5.284.830_______23.857_______18.114________292 days______Team Starfire World BOINC
22_______-5.765.944_______84.490_______63.364_________91 days______SETI@China
23_______-9.342.068_______-1.058_______-4.753______impossible______Hewlett-Packard
24______-10.694.285______-11.151_______-9.883______impossible______Amateur Radio Operators
25______-10.704.504______-20.305______-13.591______impossible______PC Perspective Killer Frogs
26______-10.876.396_________-301________2.485______4.377 days______Dutch Power Cows
27______-11.001.314________9.832________5.150______2.136 days______Canada
28______-15.439.120______-58.940______-47.946______impossible______Planet 3DNow!
29______-15.786.124______-19.195______-14.153______impossible______Team MacAddict
30______-15.876.236______-43.012______-33.527______impossible______2CPU.com
31______-16.576.950______-26.483______-19.866______impossible______Team NIPPON
32______-18.960.776_______-5.224______-12.563______impossible______BOINC SETI@home RUSSIA
33______-19.050.430_______12.742_______12.330______1.545 days______UK BOINC Team
34______-19.139.939______-15.010______-11.714______impossible______BOINC@Denmark
35______-19.496.300_______-7.568_______-8.889______impossible______Hungary
36______-19.934.233_______25.739_______41.440________481 days______BOINC@AUSTRALIA
37______-20.567.747_______-6.080________5.090______4.041 days______US NAVY
38______-21.350.073______-37.507______-34.323______impossible______Portugal@Home
39______-23.436.855______-10.866________2.873______8.158 days______U.S.Air Force
40______-24.793.999______-73.704______-59.194______impossible______Picard
41______-24.830.626______-29.770______-22.570______impossible______SETI.hr
42______-25.679.114______-66.517______-54.756______impossible______LittleWhiteDog
43______-25.855.414______-33.069______-27.689______impossible______SETI@klamm.de
44______-26.957.433______-44.609______-35.811______impossible______Team EDGE
45______-27.314.400_______31.482_______30.681________890 days______AUSTRIA - NATIONAL - TEAM
46______-27.359.325______-44.002______-31.526______impossible______HispaSeti & BOINC
47______-29.314.381______-38.635______-35.501______impossible______SETI Sverige [Sweden]
48______-29.987.882__________623______-10.780______impossible______BOINC.SK
49______-31.053.519______-64.074______-47.036______impossible______BOINC UK
50______-31.831.223______-43.498______-35.159______impossible______PurePC.pl

Appart for Anandtech's stats, it shows how much more/less than Anandtech.
Also shows based on Average Work Done how many days for Anandtech to overtake the team, or be overtaken by a team behind

 

[Assimilator1]

I see TPR are on the verge of passing us ,congrats to them ...............we'll get them back someday

 

[DoubleTop]

whistles innocently - so come on then make a race of it



DT.

 

[bryanW1995]

if we could all just chip in and buy 15 Q6600's then we'd be ok...

 

[DoubleTop]

Originally posted by: bryanW1995
if we could all just chip in and buy 15 Q6600's then we'd be ok...

now that would be tasty

DT.

 

[Assimilator1]

Originally posted by: DoubleTop

Originally posted by: bryanW1995
if we could all just chip in and buy 15 Q6600's then we'd be ok...

now that would be tasty
DT.

lol

Hi DT
Atm I don't think we're in a good position to race as many crunchers are helping other projects for the time being.But we will be back ....................

Btw good to see a TPR guy here ,I used to post over at your forums quite regularly & I knew some of your guys too (not just the X TA members either).
Probably almost no one there who will remember me now though

 

[DoubleTop]

I think you'd be surprised how many old skool are still about, and thoroughly enjoying the fact that we stomped you

DT.

 

[Assimilator1]

Heheh ,enjoy it whilst it lasts