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Posts by Ingleside

Posts by Ingleside

1) Message boards : Number crunching : WaH batches 996 & 1001 have been closed (Message 70604)
Posted 5 Mar 2024 by Ingleside
Post:
WaH batches 996 & 1001 have been closed
What does this mean in practice?
Does it mean continue crunching will just be a waste of electricity, since anything returned is just dumped?
Or is it still useful to continue crunching these until they either finish or crap-out on next re-boot?
2) Message boards : Number crunching : New work discussion - 2 (Message 69853)
Posted 14 Oct 2023 by Ingleside
Post:
For whatever reason (possibly a bad Boinc design), Windows does not allow CPDN to shut down completely.
The problem here is, even with exiting BOINC beforehand some of the models still crapped-out on re-start.
3) Message boards : Number crunching : Batch 996 Weather@Home2 East Asia25 (Message 69826)
Posted 13 Oct 2023 by Ingleside
Post:
I have increased this in the past using a text editor.

With the high crap-out rate of these models if you make the mistake of exiting BOINC you can't really increase the disk limit of already running tasks.

Pausing in memory the problematic tasks before hitting disk limit due to stuck uploads should at least in theory work.
4) Message boards : Number crunching : Batch 996 Weather@Home2 East Asia25 (Message 69768)
Posted 11 Oct 2023 by Ingleside
Post:
Since I apparently overlooked a Windows 10 update, 15 tasks crapped out after the unexpected re-boot.

14 errored-out with "Signal 11 received: Segment violation" but one of them strangely enough also had "The system cannot find the drive specified. (0xf) - exit code 15 (0xf)"

One of them had "The access code is invalid. (0xc) - exit code 12 (0xc)"

All of them had at least 1 trickle, meaning it's not wu's that errored-out at the initial startup.
5) Message boards : Number crunching : New work discussion - 2 (Message 69559)
Posted 2 Sep 2023 by Ingleside
Post:
Would it make any difference if they were multicore?

I would much rather run a single let's say 10 GB model for one week using 4 cores, instead of running the same on a single core for 4 weeks.
With how really bad CPDN is at handling re-boots, while waiting to re-boot a few days for the 4 cores to finish is possible, waiting maybe 3 weeks for the single core to finish isn't really practical.
6) Message boards : Number crunching : Credit Question Answered (Message 69338)
Posted 16 Jul 2023 by Ingleside
Post:
it's currently a dreadful technical debt that small teams like CPDN have to find resources to manage, but it has no benefit for the scientists using the system.
For most BOINC projects the "technical debt" is to remember to make the stats-dumps available for stats sites, where "everything else" is already automatically handled then results are validated.

As for "no benefit for the scientists", I would expect it's a huge "benefit" for an individual scientist to not have to run all the models on his/her own computer(s), since chances are with no "credit" very few other users would want to waste their time running CPDN.
7) Message boards : Number crunching : New work discussion - 2 (Message 69068)
Posted 1 Jul 2023 by Ingleside
Post:
I think that's under Linux?
Since WAH2 according to apps-page is Windows exclusive I doubt a Linux computer would try to return such work.
Still, in the off-chance it's some kind of beta-wu, a quick look on geophi's log shows
6/30/2023 1:45:18 PM | climateprediction.net | [http] [ID#21] Sent header to server: User-Agent: BOINC client (windows_x86_64 7.22.2)

Similarly, pututu's log shows
6/30/2023 11:15:43 AM | climateprediction.net | [http] [ID#5725] Sent header to server: User-Agent: BOINC client (windows_x86_64 7.16.20)
8) Message boards : Number crunching : New work discussion - 2 (Message 69031)
Posted 28 Jun 2023 by Ingleside
Post:
Because the graph shows that we hit maximum throughput when running the same number of tasks as cores (not threads)
Well, at least to my eyes it seems "Tasks completed/day" increases from 1 - 7 running tasks, where at 6 running tasks the blue point is below the 14-grid-line while 7, 8 and 9 the 14-grid-line seems to be hidden behind the blue line & dots. For 10 running tasks the blue line dips a little again.
Now if it's 7, 8 or 9 tasks that is the highest tasks completed/day I can't really see from the graph.
The increase is much steeper going from 1 - 6 running tasks than from 6 - 7 running tasks, making it easy to overlook the small increase.

Now if the small increase is significant enough to run more than 1 task / core I can't really say.
9) Message boards : Number crunching : Server Status page questions (Message 68602)
Posted 18 Mar 2023 by Ingleside
Post:
Looking on both CPDN and Rosetta@home's status pages, it seems only applications with "active" users shows any information about 100 last results. Meaning, until someone example return HADAM4 model no information will be displayed for HADAM4.

As for "in progress", at least with Rosetta@home's 3-days-deadline this will very quickly drop to zero then available work dries out for any of the applications. With CPDN multi-months deadlines things does go much slower.

For "ghosts", many projects does re-issue any "lost" work, example if server sends work but connection craps-out before BOINC client gets the work, but at least back in the day CPDN did not use this server-option. Meaning, unless CPDN have finially started using this server option, it wouldn't be surprising if nearly all work is "ghosts".

BTW, since CPDN stopped showing new trickles and stopped giving credit for non-OpenIFS work back in November or December 2022, it's also possible a larger-than-normal number of users has just quit running CPDN.
10) Message boards : Number crunching : no credit awarded? (Message 68553)
Posted 3 Mar 2023 by Ingleside
Post:
Note that the role of the BBC in promoting the early, pre-BOINC, stage of CPDN's life has escaped David's notice.
While I did run the pre-BOINC CPDN client, I can't remember BBC mentioned here, but then again it's roughly 20 years ago. The "special" BBC CPDN experiment that started in 2006 on the other hand did use BOINC.

BTW, now maybe my recollection is too fuzzy, but after the BBC experiment shut-down, didn't once-upon-a-time these BBC credits show-up here as a separate field on individual user's pages? I just checked and didn't see such a field.


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