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Number crunching :
Astropulse server problem?
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Author | Message |
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robertmiles Send message Joined: 16 Jan 12 Posts: 213 Credit: 4,117,756 RAC: 6 |
Does the server handling downloads of the Astropulse 8 MB .wu input files have a problem? I've found that, in order to finish downloading one in less than 5 or 6 days, I have to manually request retries on it many times. The download speed is typically below 5 KBps, except below 10 KBps late at night. Uploads of output files from other BOINC projects go much faster, even if a transatlantic connection is needed. |
juan BFP Send message Joined: 16 Mar 07 Posts: 9786 Credit: 572,710,851 RAC: 3,799 |
Don´t know if that answer your question, but the normal MB WU have the size of about 360kB a AP have 8 MB, about 22 times grater. With the actual conection problem in some cases is almost impossible to DL a AP WU. At least that happens at my side of the world even with a retry´s cmd takes about an hour or more to DL a single AP WU. |
Dimly Lit Lightbulb 😀 Send message Joined: 30 Aug 08 Posts: 15399 Credit: 7,423,413 RAC: 1 |
I crunch only astropulses and have found the download speeds to be anywhere from a whopping 150KBPS to a dismal 0.1 KBPS. I've found they do eventually get through even if it does take an hour or two :) Member of the People Encouraging Niceness In Society club. |
Raistmer Send message Joined: 16 Jun 01 Posts: 6325 Credit: 106,370,077 RAC: 121 |
Perhaps it's network config problem, not "AP server" problem. On my host I see good speed (10k is good these times) right after hitting retry button. But in a few seconds speed decreases to 1-2kb. It stays there for some time then connection breaks and retry needed again. Adding BOINC client fallbacks of 5 hours and mean processing time for AP task on my host of less than hour it makes absolutely impossible to keep host busy w/o auto-retry script. SETI apps news We're not gonna fight them. We're gonna transcend them. |
Sutaru Tsureku Send message Joined: 6 Apr 07 Posts: 7105 Credit: 147,663,825 RAC: 5 |
My machine need average 2 - 3 hours for to DL an AP WU (pure DL time). ~ one day, up to 40 or more retries are needed for to finish the AP WU DL. * Best regards! :-) * Sutaru Tsureku, team seti.international founder. * Optimize your PC for higher RAC. * SETI@home needs your help. * |
Mike Davis Send message Joined: 17 May 99 Posts: 240 Credit: 5,402,361 RAC: 0 |
Try using a US based proxy.. you should get them downloading pretty quick then. seems like something is throttling coming out of the US as without using ones - endless backoffs and slow <1k/s with a US proxy >10k/s |
alan Send message Joined: 18 Feb 00 Posts: 131 Credit: 401,606 RAC: 0 |
Here in the UK, if I don't force retrys, two to three DAYS to download one AP unit. Fortunately I'm a slow cruncher. |
HAL9000 Send message Joined: 11 Sep 99 Posts: 6534 Credit: 196,805,888 RAC: 57 |
I have not watched an AP task download in a while, but my machines that do run AP tasks have download averages of ~100k. SETI@home classic workunits: 93,865 CPU time: 863,447 hours Join the [url=http://tinyurl.com/8y46zvu]BP6/VP6 User Group[ |
rob smith Send message Joined: 7 Mar 03 Posts: 22204 Credit: 416,307,556 RAC: 380 |
It looks as if the AP splitter is not working as well as it should - the same set of tapes being split as when I went off to work this morning, and "stuck" at the same channel numbers. (No wander there are no new tapes being fed into the system...) Bob Smith Member of Seti PIPPS (Pluto is a Planet Protest Society) Somewhere in the (un)known Universe? |
Mike Send message Joined: 17 Feb 01 Posts: 34258 Credit: 79,922,639 RAC: 80 |
The result creation rate is rather low since 2 weeks. But they can add a few other tapes into the pipe of course. Probably Matt isn`t in the lab yet. He isn`t an early riser usually. With each crime and every kindness we birth our future. |
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