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Old 2009-09-06, 01:39   #12
frmky
 
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1. If it becomes an issue, I'll deal with it. (Interpret as I'm not ready to go through another round of application compiling, signing, copying, etc.)
2. Yes, if I had remembered to enable it. It will be in the next project.
3. I really don't want to waste computer time getting a quorum of identical results, so I only issue each work unit one time. On receipt, I do a few quick checks to make sure it looks ok (big enough, not too big, has about the expected number of relations, contains q in the right range, etc.). I hope to be able to keep it this way but if it becomes necessary I'll move to the bitwise validator and require a quorum of 2 results.

Last fiddled with by frmky on 2009-09-06 at 01:41
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Old 2009-09-07, 05:08   #13
Batalov
 
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No, no, no, quorum of 2 will probably be not worth it.
It is not like protein modeling or other exaustive projects (where every part must be exactly right); ah, GIMPS is another handy example project with a quorum of 2.
Here, if a sieved part is wrong then it will be discarded by filtering and good riddance! No range is better than any other (well, within reason) and need not be redone; of course as long as not too many workunits fail and drive the sieving range much higher than desired.

Related question: do you get the abort results and return them to the pool? When I was looking at the client behaviour (and looked at ins and outs; hey, the poly is good, btw), the client reserved a hundred or so units. I've finished a dozen and at the same time set "request no more work" and then aborted all not yet started chunks. Can you check that the server processed those aborts right? (My ID is the same as here.)

_________
5,353+? Goodness!
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Old 2009-09-07, 07:17   #14
wreck
 
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Project is down?

Code:
2009-9-7 13:52:24|NFS@Home|Started upload of file L221440260_0_0
2009-9-7 13:53:07|NFS@Home|Finished upload of file L221440260_0_0
2009-9-7 13:53:07|NFS@Home|Throughput 39312 bytes/sec
2009-9-7 14:08:38|NFS@Home|Sending scheduler request to http://escatter11.fullerton.edu/nfs_cgi/cgi
2009-9-7 14:08:38|NFS@Home|Reason: To fetch work
2009-9-7 14:08:38|NFS@Home|Requesting 2634 seconds of new work, and reporting 1 completed tasks
2009-9-7 14:08:44|NFS@Home|Scheduler request succeeded
2009-9-7 14:08:46|NFS@Home|Started download of file lasievee_1.05_windows_intelx86.exe
2009-9-7 14:08:46|NFS@Home|Started download of file S5p353.poly
2009-9-7 14:08:48|NFS@Home|Finished download of file S5p353.poly
2009-9-7 14:08:48|NFS@Home|Throughput 930 bytes/sec
2009-9-7 14:08:49||Allowing work fetch again.
2009-9-7 14:08:51|NFS@Home|Finished download of file lasievee_1.05_windows_intelx86.exe
2009-9-7 14:08:51|NFS@Home|Throughput 133934 bytes/sec
2009-9-7 14:08:52||Rescheduling CPU: files downloaded
2009-9-7 14:08:52||Using earliest-deadline-first scheduling because computer is overcommitted.
2009-9-7 14:08:52|NFS@Home|Pausing task L221441030_0 (removed from memory)
2009-9-7 14:08:52|NFS@Home|Starting task S5p353_50062_0 using lasievee version 105
2009-9-7 14:08:55||Suspending work fetch because computer is overcommitted.
2009-9-7 14:15:54||Rescheduling CPU: application exited
2009-9-7 14:15:54|NFS@Home|Computation for task L221441440_0 finished
2009-9-7 14:15:54|NFS@Home|Restarting task L221441030_0 using lasieved version 105
2009-9-7 14:15:56|NFS@Home|Started upload of file L221441440_0_0
2009-9-7 14:16:32|NFS@Home|Finished upload of file L221441440_0_0
2009-9-7 14:16:32|NFS@Home|Throughput 46396 bytes/sec
2009-9-7 14:50:25|NFS@Home|Sending scheduler request to http://escatter11.fullerton.edu/nfs_cgi/cgi
2009-9-7 14:50:25|NFS@Home|Reason: To fetch work
2009-9-7 14:50:25|NFS@Home|Requesting 436 seconds of new work, and reporting 1 completed tasks
2009-9-7 14:50:31|NFS@Home|Scheduler request succeeded
2009-9-7 14:50:31|NFS@Home|Message from server: Server can't open log file (../log_escatter11/scheduler.log)
2009-9-7 14:50:31|NFS@Home|Project is down
2009-9-7 14:54:15||Rescheduling CPU: application exited
2009-9-7 14:54:15|NFS@Home|Computation for task L221441030_0 finished
2009-9-7 14:54:15||Resuming round-robin CPU scheduling.
2009-9-7 14:54:17|NFS@Home|Started upload of file L221441030_0_0
2009-9-7 14:54:18|NFS@Home|Error on file upload: can't open log file '../log_escatter11/file_upload_handler.log' (errno: 9)
2009-9-7 14:54:18|NFS@Home|Temporarily failed upload of L221441030_0_0: transient upload error
2009-9-7 14:54:18|NFS@Home|Backing off 1 minutes and 0 seconds on upload of file L221441030_0_0
2009-9-7 14:55:18|NFS@Home|Started upload of file L221441030_0_0
2009-9-7 14:55:20|NFS@Home|Error on file upload: can't open log file '../log_escatter11/file_upload_handler.log' (errno: 9)
2009-9-7 14:55:20|NFS@Home|Temporarily failed upload of L221441030_0_0: transient upload error
2009-9-7 14:55:20|NFS@Home|Backing off 1 minutes and 0 seconds on upload of file L221441030_0_0
2009-9-7 14:56:20|NFS@Home|Started upload of file L221441030_0_0
2009-9-7 14:56:21|NFS@Home|Error on file upload: can't open log file '../log_escatter11/file_upload_handler.log' (errno: 9)
2009-9-7 14:56:21|NFS@Home|Temporarily failed upload of L221441030_0_0: transient upload error
2009-9-7 14:56:21|NFS@Home|Backing off 1 minutes and 0 seconds on upload of file L221441030_0_0
2009-9-7 14:57:21|NFS@Home|Started upload of file L221441030_0_0
2009-9-7 14:57:22|NFS@Home|Error on file upload: can't open log file '../log_escatter11/file_upload_handler.log' (errno: 9)
2009-9-7 14:57:22|NFS@Home|Temporarily failed upload of L221441030_0_0: transient upload error
2009-9-7 14:57:22|NFS@Home|Backing off 1 minutes and 0 seconds on upload of file L221441030_0_0
2009-9-7 14:58:22|NFS@Home|Started upload of file L221441030_0_0
2009-9-7 14:58:24|NFS@Home|Error on file upload: can't open log file '../log_escatter11/file_upload_handler.log' (errno: 9)
2009-9-7 14:58:24|NFS@Home|Temporarily failed upload of L221441030_0_0: transient upload error
2009-9-7 14:58:24|NFS@Home|Backing off 1 minutes and 24 seconds on upload of file L221441030_0_0
2009-9-7 14:59:42||Rescheduling CPU: application exited
2009-9-7 14:59:42|NFS@Home|Computation for task S5p353_50062_0 finished
2009-9-7 14:59:44|NFS@Home|Started upload of file S5p353_50062_0_0
2009-9-7 14:59:45|NFS@Home|Error on file upload: can't open log file '../log_escatter11/file_upload_handler.log' (errno: 9)
2009-9-7 14:59:45|NFS@Home|Temporarily failed upload of S5p353_50062_0_0: transient upload error
2009-9-7 14:59:45|NFS@Home|Backing off 1 minutes and 0 seconds on upload of file S5p353_50062_0_0
2009-9-7 14:59:48|NFS@Home|Started upload of file L221441030_0_0
2009-9-7 14:59:50|NFS@Home|Error on file upload: can't open log file '../log_escatter11/file_upload_handler.log' (errno: 9)
2009-9-7 14:59:50|NFS@Home|Temporarily failed upload of L221441030_0_0: transient upload error
2009-9-7 14:59:50|NFS@Home|Backing off 1 minutes and 3 seconds on upload of file L221441030_0_0
2009-9-7 15:00:45|NFS@Home|Started upload of file S5p353_50062_0_0
2009-9-7 15:00:46|NFS@Home|Error on file upload: can't open log file '../log_escatter11/file_upload_handler.log' (errno: 9)
2009-9-7 15:00:46|NFS@Home|Temporarily failed upload of S5p353_50062_0_0: transient upload error
2009-9-7 15:00:46|NFS@Home|Backing off 1 minutes and 0 seconds on upload of file S5p353_50062_0_0
2009-9-7 15:00:54|NFS@Home|Started upload of file L221441030_0_0
2009-9-7 15:00:56|NFS@Home|Error on file upload: can't open log file '../log_escatter11/file_upload_handler.log' (errno: 9)
2009-9-7 15:00:56|NFS@Home|Temporarily failed upload of L221441030_0_0: transient upload error
2009-9-7 15:00:56|NFS@Home|Backing off 13 minutes and 36 seconds on upload of file L221441030_0_0
2009-9-7 15:01:46|NFS@Home|Started upload of file S5p353_50062_0_0
2009-9-7 15:01:47|NFS@Home|Error on file upload: can't open log file '../log_escatter11/file_upload_handler.log' (errno: 9)
2009-9-7 15:01:47|NFS@Home|Temporarily failed upload of S5p353_50062_0_0: transient upload error
2009-9-7 15:01:47|NFS@Home|Backing off 1 minutes and 0 seconds on upload of file S5p353_50062_0_0
2009-9-7 15:02:47|NFS@Home|Started upload of file S5p353_50062_0_0
2009-9-7 15:02:49|NFS@Home|Error on file upload: can't open log file '../log_escatter11/file_upload_handler.log' (errno: 9)
2009-9-7 15:02:49|NFS@Home|Temporarily failed upload of S5p353_50062_0_0: transient upload error
2009-9-7 15:02:49|NFS@Home|Backing off 1 minutes and 0 seconds on upload of file S5p353_50062_0_0
2009-9-7 15:03:49|NFS@Home|Started upload of file S5p353_50062_0_0
2009-9-7 15:03:50|NFS@Home|Error on file upload: can't open log file '../log_escatter11/file_upload_handler.log' (errno: 9)
2009-9-7 15:03:50|NFS@Home|Temporarily failed upload of S5p353_50062_0_0: transient upload error
2009-9-7 15:03:50|NFS@Home|Backing off 1 minutes and 45 seconds on upload of file S5p353_50062_0_0
2009-9-7 15:05:24|NFS@Home|Sending scheduler request to http://escatter11.fullerton.edu/nfs_cgi/cgi
2009-9-7 15:05:24|NFS@Home|Reason: Requested by user
2009-9-7 15:05:24|NFS@Home|Requesting 17280 seconds of new work, and reporting 1 completed tasks
2009-9-7 15:05:30|NFS@Home|Scheduler request succeeded
2009-9-7 15:05:30|NFS@Home|Message from server: Server can't open log file (../log_escatter11/scheduler.log)
2009-9-7 15:05:30|NFS@Home|Project is down
2009-9-7 15:05:37|NFS@Home|Started upload of file S5p353_50062_0_0
2009-9-7 15:05:39|NFS@Home|Error on file upload: can't open log file '../log_escatter11/file_upload_handler.log' (errno: 9)
2009-9-7 15:05:39|NFS@Home|Temporarily failed upload of S5p353_50062_0_0: transient upload error
2009-9-7 15:05:39|NFS@Home|Backing off 4 minutes and 39 seconds on upload of file S5p353_50062_0_0
2009-9-7 15:10:19|NFS@Home|Started upload of file S5p353_50062_0_0
2009-9-7 15:10:20|NFS@Home|Error on file upload: can't open log file '../log_escatter11/file_upload_handler.log' (errno: 9)
2009-9-7 15:10:20|NFS@Home|Temporarily failed upload of S5p353_50062_0_0: transient upload error
2009-9-7 15:10:20|NFS@Home|Backing off 15 minutes and 40 seconds on upload of file S5p353_50062_0_0
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Old 2009-09-07, 10:10   #15
frmky
 
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Quote:
Originally Posted by Batalov View Post
do you get the abort results and return them to the pool?
Yes, aborted work units are reissued.
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Old 2009-09-07, 10:12   #16
frmky
 
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Quote:
Originally Posted by wreck View Post
Project is down?
It was for a little while. Back up now. All part of the beta warning... Hopefully everything is in place and working now.
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Old 2009-09-07, 12:45   #17
wreck
 
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Could I ask why NFS@Home is not on the BOINC's Project list?
Reference url is http://boincstats.com/index.php?list=full&or=0
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Old 2009-09-09, 13:58   #18
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Quote:
I decided to test how well BOINC works for NFS sieving
If you manage to get enough people willing to contribute, it works extremely well, because BOINC makes for a much more user-friendly setup and usage.
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Old 2009-09-09, 21:28   #19
bdodson
 
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Quote:
Originally Posted by debrouxl View Post
If you manage to get enough people willing to contribute, it works extremely well, because BOINC makes for a much more user-friendly setup and usage.
Thanks for this explanation. Now, could you tell us how to
manage to get enough people to contribute? For example, does
boinc make user/team stats easy? That was one of the things that
brought NFSNet down, as far as a broad pool of contributors. -bd
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Old 2009-09-09, 22:50   #20
fivemack
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Yes: go to

http://escatter11.fullerton.edu/nfs/stats.php

(assuming that it's up; it's not responding as of 1am 10/9, but nor should I be worrying about it at 1am on a work night ...)

and there are what look like quite decent stats; top users, top computers, top teams. I don't know how much of this has been specially coded up by Greg and how much of it comes with the BOINC infrastructure.

I've started BOINC on half of my i7 (I may stop it again if it makes the 2-877 linalg slow; it's by definition rather hard to use the idle time on a hyperthreaded processor ...) and it seems to be basically silent while giving lots of interesting info.

Last fiddled with by fivemack on 2009-09-10 at 00:06
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Old 2009-09-10, 01:45   #21
frmky
 
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Quote:
Originally Posted by fivemack View Post
(assuming that it's up; it's not responding as of 1am 10/9, but nor should I be worrying about it at 1am on a work night ...)
You would try to access it in the 15 minutes that I took it down to do a quick backup of the latest settings! Everything's back up now.

All of the stats are coded by BOINC. I've probably written only about 30 lines of new code for the website. Most of the time has been spent figuring out their system of scripts.
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Old 2009-09-10, 07:07   #22
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bdodson: we "certain group of calculator enthusiasts" (as mentioned by frmky in the first post) managed to get hundreds of computers totaling more than 1K cores crunching away on sieving between 12 and 13 512-bit numbers in less than one month (even though we used a WU quota of 2 and the bitwise validator !)
Needless to say, the raw CPU power has been growing throughout the project.
As frmky mentioned it, BOINC packs a lot of things built-in, is fairly little of a hassle to set up, and the modifications to ggnfs-lasieve turned out to be small.

When we were going to run out of WUs in the next few days, we started writing something about our BOINC version of gnfs-lasieve4I14e, what we achieved with it, and how we thought about improving it (with the help of a wider community): http://www.yaronet.com/posts.php?sl=...p=26&h=755#755 .
We planned on presenting the project to the wider factoring community, right on this section of the mersenneforum board, as advised by jasonp... but the BOINC project creator is on holiday, and we didn't get to finishing the post contents before frmky, who was aware of ours, beat us with his own BOINC project

See:
* http://boinc.unsads.com/rsals/ : our BOINC project, in which I've pushed WUs corresponding to sieving 1M-50M on the C151_105_101 number of http://xyyxf.at.tut.by/wanted.txt . About 24h into the distribution of those WUs, about half of them were distributed to clients. I've performed some polynomial selection for C157_105_74 and C152_107_66.
* http://www.unitedti.org/index.php?showtopic=8888, http://www.unitedti.org/index.php?showtopic=8899 : the topics which started it all (the first one is the announcement of the solo desktop factoring of a 512-bit number). Both jasonp (who suggested posting on this board) and frmky posted there.
* http://www.yaronet.com/sujets.php?s=&f=15 : the news/misc section of the main TI-68k French-speaking board (English-written posts are tolerated), main place of coordination for the BOINC project (the topic with currently more than 800 posts)

Last fiddled with by debrouxl on 2009-09-10 at 07:13
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