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1) Message boards : Generalized Fermat Prime Search : Guess the number of digits in the LAST GFN-17-LOW prime (Message 153035)
Posted 333 days ago by mexico
2) Message boards : Generalized Cullen/Woodall prime search : 2525532 · 73^2525532 + 1 (Message 151346)
Posted 456 days ago by mexico
Well, it's proven now, and ... 2525532*73^2525532+1 is prime! :)

Congratulations for the find! :) I am always happy to see a project advance!
3) Message boards : General discussion : Idea of "All-Teams"-Events... (Message 150982)
Posted 491 days ago by mexico
We already had "focus project" implemented.

It can incentive subprojct in to ways>
To point to existing users in preferences what subproject is now desired from project's perspective; they are still free to choose whatever they want.
To set a new computers to focus project if not selected otherwise.
Note that not all subprojects are suitable for all computers (ie. SoB vs notebook/tablets).

I, personally, like the idea of a "focus project" in the way we had it here - to point to users what subproject could/should be emphasized at a certain moment, without forcing them to set it in any way. :) Of course it can always be developed into some kind of a "challenge".
By the way, why did we drop it out? I haven't even noticed ... until I read about it here! I thought we still have SoB for a "focus project". I tried to find some info about that in the forum, but I couldn't!
4) Message boards : Number crunching : World Emoji Day Challenge (Message 150892)
Posted 499 days ago by mexico
Looking into the final stats - it seems like if we had a ~10 Day challenge, we could have almost ended the GFN-17-Low subproject. :)
5) Message boards : Number crunching : Android (Message 68250)
Posted 3399 days ago by mexico
The Android TRP-Sieve client can now be downloaded automatically from the PrimeGrid server. ...

Any idea how much RAM is required as a minimum for the application to run?

According to WUProp (, it takes 18.5 MB.

WUProp, for those who are unfamiliar with it, is another BOINC project that gathers statistics about other BOINC projects by running Non-CPU-Intensive (NCI) tasks along side your other BOINC tasks. It's a great place for getting answers to questions like this.

I am not quite sure about this info. Actually, I notice jumps of RAM ussage from about 150MB to 260MB on this ARM device when I run the sieve application. I think it happens after the initialization period and seems to be the reason for the errors the device is producing (not enough memory).
6) Message boards : Number crunching : Android (Message 68248)
Posted 3399 days ago by mexico
The Android TRP-Sieve client can now be downloaded automatically from the PrimeGrid server. ...

Any idea how much RAM is required as a minimum for the application to run?
7) Message boards : Number crunching : Android (Message 67617)
Posted 3433 days ago by mexico
When I try to run TRP sieve tasks on this host all I get is errors. Most of them almost immediately error, but one processed about 35% and then crashed. All tasks crash with the same error. Anyone have an idea what an app error: 9 is? How can I solve this?

Here is also some part of the log from the client,, if it could be helpful:

08-Jul-2013 21:12:19 [---] No config file found - using defaults
08-Jul-2013 21:12:19 [---] Starting BOINC client version 7.0.36 for arm-android-linux-gnu
08-Jul-2013 21:12:19 [---] log flags: file_xfer, sched_ops, task
08-Jul-2013 21:12:19 [---] Libraries: libcurl/7.28.0 OpenSSL/1.0.1c zlib/1.2.5.f-codeaurora-mods-v1
08-Jul-2013 21:12:19 [---] Data directory: /mnt/sdcard/Android/data/sk.boinc.nativeboinc/files/boinc
08-Jul-2013 21:12:19 [---] Processor: 1 ARM ARMv6-compatible processor rev 5 (v6l) @832MHz
08-Jul-2013 21:12:19 [---] Processor features: swp half thumb fastmult vfp edsp java
08-Jul-2013 21:12:19 [---] OS: Android:
08-Jul-2013 21:12:19 [---] Memory: 289.69 MB physical, 0 bytes virtual
08-Jul-2013 21:12:19 [---] Disk: 1.85 GB total, 294.88 MB free
08-Jul-2013 21:12:19 [---] Local time is UTC +3 hours
08-Jul-2013 21:12:19 [---] No usable GPUs found
08-Jul-2013 21:12:19 [PrimeGrid] Found app_info.xml; using anonymous platform
08-Jul-2013 21:12:19 [SETI@home] Found app_info.xml; using anonymous platform
08-Jul-2013 21:12:19 [---] Config: GUI RPC allowed from any host
08-Jul-2013 21:12:19 [PrimeGrid] URL; Computer ID 403367; resource share 50
08-Jul-2013 21:12:19 [SETI@home] URL; Computer ID 7017728; resource share 100
08-Jul-2013 21:12:19 [SETI@home] General prefs: from SETI@home (last modified 21-Jun-2013 14:44:10)
08-Jul-2013 21:12:19 [SETI@home] Computer location: school
08-Jul-2013 21:12:19 [---] General prefs: using separate prefs for school
08-Jul-2013 21:12:19 [---] Reading preferences override file
08-Jul-2013 21:12:19 [---] Preferences:
08-Jul-2013 21:12:19 [---] max memory usage when active: 144.84MB
08-Jul-2013 21:12:19 [---] max memory usage when idle: 260.72MB
08-Jul-2013 21:12:19 [---] max disk usage: 0.36GB
08-Jul-2013 21:12:19 [---] don't use GPU while active
08-Jul-2013 21:12:19 [---] (to change preferences, visit the web site of an attached project, or select Preferences in the Manager)
08-Jul-2013 21:12:19 [---] Not using a proxy
08-Jul-2013 21:12:19 [---] [battery detect] I cant detect battery!
08-Jul-2013 21:12:20 [---] Authorize monitor access
08-Jul-2013 21:12:35 [PrimeGrid] project resumed by user
08-Jul-2013 21:12:36 [PrimeGrid] Restarting task TRP_sieve_2736375_1 using trp_sr2sieve version 105 in slot 0
08-Jul-2013 21:15:29 [PrimeGrid] Computation for task TRP_sieve_2736375_1 finished
08-Jul-2013 21:15:29 [PrimeGrid] Output file TRP_sieve_2736375_1_0 for task TRP_sieve_2736375_1 absent
08-Jul-2013 21:16:53 [PrimeGrid] Sending scheduler request: To fetch work.
08-Jul-2013 21:16:53 [PrimeGrid] Reporting 1 completed tasks
08-Jul-2013 21:16:53 [PrimeGrid] Requesting new tasks for CPU
08-Jul-2013 21:16:55 [PrimeGrid] Scheduler request completed: got 1 new tasks
08-Jul-2013 21:16:58 [PrimeGrid] Started download of TRP_sieve_2728269_cmd
08-Jul-2013 21:17:00 [PrimeGrid] Finished download of TRP_sieve_2728269_cmd
08-Jul-2013 21:17:00 [PrimeGrid] Starting task TRP_sieve_2728269_2 using trp_sr2sieve version 105 in slot 0
08-Jul-2013 21:20:39 [PrimeGrid] Computation for task TRP_sieve_2728269_2 finished
08-Jul-2013 21:20:39 [PrimeGrid] Output file TRP_sieve_2728269_2_0 for task TRP_sieve_2728269_2 absent
8) Message boards : Number crunching : Father's Day Challenge (Message 67042)
Posted 3453 days ago by mexico
In my point of view, that was a very good challenge. I could only regret that it was kind of a short one. Maybe just ... 2 more days and I would have enjoyed it even more!
9) Message boards : Number crunching : Welcome to the Equinox Challenge (Message 63800)
Posted 3541 days ago by mexico
Fine job Czech National Team and congratulations for your first place! :)

Also special thanks to the organization team for their quick fix at the challenge formula to keep the challenge fair. :)

The overall statistics looks imressive - well done to all participants!
10) Message boards : Number crunching : The Year of The Snake Challenge (Message 61849)
Posted 3603 days ago by mexico
Absolutely, welcome to PG. There are a ton of smart helpful folks here and I hope you enjoy yourself and find some primes.

Cheers Rick

Thank you all for the kind words! :)

Looking forward to the next challenge, though team Bulgaria is currently at zero organization level concerning this matter. Nevertheless, I think I will enjoy myself around, as I like technology, science, math and competitions.

Regards, mexico

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