Posts by [AF>Le_Pommier] Aillas

1) Message boards : News : Next level C115 reached (Message 638)
Posted 25 Feb 2014 by Profile [AF>Le_Pommier] Aillas
Post:
It takes 41442 sec (11 hr. 30 min. 42 sec) on an Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz (4 cores Hyperthreaded = 8)
2) Questions and Answers : Unix/Linux : Yafu - ECM Zombie 2 (Message 333)
Posted 1 Feb 2012 by Profile [AF>Le_Pommier] Aillas
Post:
Hi,

I'm using yafu 1.09 mt and I (still) found zombie processes.

This time it's not after a crash. My steps:
1 - I pause all project except Yafu to force Yafu to run.
2 - After some times I resume others projects
3 - => A running Yafu WU is paused (time near 10 min)
...
4 - Next day, goto step 1
5 - The Yafu WU is restarted from zero

When I perform a PS I found zombie process in pause

A valid yafu process look like this:

/usr/bin/boinc --check_all_logins --redirectio --dir /var/lib/boinc-client
  \_ ../../projects/yafu.dyndns.org_yafu/yafuwrapper_0.02_x86_64-pc-linux-gnu --nthreads 8
      \_ yafu -threads 8 -batchfile in
          \_ yafu -threads 8 -batchfile in
          |   \_ sh -c echo 173996845779586157366494846803955856856998736929260892963290354241707927662135984520670718621108485514277 | ./ecm -sigma 336012542 1000000 > _yafu_ecm_tmp0.ou
          |       \_ ./ecm -sigma 336012542 1000000
          \_ yafu -threads 8 -batchfile in
          |   \_ sh -c echo 173996845779586157366494846803955856856998736929260892963290354241707927662135984520670718621108485514277 | ./ecm -sigma 2070689447 1000000 > _yafu_ecm_tmp1.o
          |       \_ ./ecm -sigma 2070689447 1000000
          \_ yafu -threads 8 -batchfile in
          |   \_ sh -c echo 173996845779586157366494846803955856856998736929260892963290354241707927662135984520670718621108485514277 | ./ecm -sigma 3162878728 1000000 > _yafu_ecm_tmp2.o
          |       \_ ./ecm -sigma 3162878728 1000000
          \_ yafu -threads 8 -batchfile in
          |   \_ sh -c echo 173996845779586157366494846803955856856998736929260892963290354241707927662135984520670718621108485514277 | ./ecm -sigma 2302315479 1000000 > _yafu_ecm_tmp3.o
          |       \_ ./ecm -sigma 2302315479 1000000
          \_ yafu -threads 8 -batchfile in
          |   \_ sh -c echo 173996845779586157366494846803955856856998736929260892963290354241707927662135984520670718621108485514277 | ./ecm -sigma 2141734835 1000000 > _yafu_ecm_tmp4.o
          |       \_ ./ecm -sigma 2141734835 1000000
          \_ yafu -threads 8 -batchfile in
          |   \_ sh -c echo 173996845779586157366494846803955856856998736929260892963290354241707927662135984520670718621108485514277 | ./ecm -sigma 1952672455 1000000 > _yafu_ecm_tmp5.o
          |       \_ ./ecm -sigma 1952672455 1000000
          \_ yafu -threads 8 -batchfile in
          |   \_ sh -c echo 173996845779586157366494846803955856856998736929260892963290354241707927662135984520670718621108485514277 | ./ecm -sigma 1687241703 1000000 > _yafu_ecm_tmp6.o
          |       \_ ./ecm -sigma 1687241703 1000000
          \_ sh -c echo 173996845779586157366494846803955856856998736929260892963290354241707927662135984520670718621108485514277 | ./ecm -sigma 3444037199 1000000 > _yafu_ecm_tmp7.out?
              \_ ./ecm -sigma 3444037199 1000000


Everything is under /usr/bin/boinc

Now my zombie processes

 yafu -threads 8 -batchfile in
  \_ yafu -threads 8 -batchfile in
  |   \_ sh -c echo 35330353245456047103659728021310109987300874002753133853824753568290837899705486367313556190598966898623 | ./ecm -sigma 4077059466 1000000 > _yafu_ecm_tmp0.out?
  |       \_ ./ecm -sigma 4077059466 1000000
  \_ yafu -threads 8 -batchfile in
  |   \_ sh -c echo 35330353245456047103659728021310109987300874002753133853824753568290837899705486367313556190598966898623 | ./ecm -sigma 501469498 1000000 > _yafu_ecm_tmp1.out?
  |       \_ ./ecm -sigma 501469498 1000000
  \_ yafu -threads 8 -batchfile in
  |   \_ sh -c echo 35330353245456047103659728021310109987300874002753133853824753568290837899705486367313556190598966898623 | ./ecm -sigma 3971155249 1000000 > _yafu_ecm_tmp2.out?
  |       \_ ./ecm -sigma 3971155249 1000000
  \_ yafu -threads 8 -batchfile in
  |   \_ sh -c echo 35330353245456047103659728021310109987300874002753133853824753568290837899705486367313556190598966898623 | ./ecm -sigma 638151306 1000000 > _yafu_ecm_tmp3.out?
  |       \_ ./ecm -sigma 638151306 1000000
  \_ yafu -threads 8 -batchfile in
  |   \_ sh -c echo 35330353245456047103659728021310109987300874002753133853824753568290837899705486367313556190598966898623 | ./ecm -sigma 3511930786 1000000 > _yafu_ecm_tmp4.out?
  |       \_ ./ecm -sigma 3511930786 1000000
  \_ yafu -threads 8 -batchfile in
  |   \_ sh -c echo 35330353245456047103659728021310109987300874002753133853824753568290837899705486367313556190598966898623 | ./ecm -sigma 159791904 1000000 > _yafu_ecm_tmp5.out?
  |       \_ ./ecm -sigma 159791904 1000000
  \_ yafu -threads 8 -batchfile in
  |   \_ sh -c echo 35330353245456047103659728021310109987300874002753133853824753568290837899705486367313556190598966898623 | ./ecm -sigma 1469863191 1000000 > _yafu_ecm_tmp6.out?
  |       \_ ./ecm -sigma 1469863191 1000000
  \_ sh -c echo 35330353245456047103659728021310109987300874002753133853824753568290837899705486367313556190598966898623 | ./ecm -sigma 361325261 1000000 > _yafu_ecm_tmp7.out?
      \_ ./ecm -sigma 361325261 1000000


Yafu is no more under boinc, it's a standalone program.

Hope his help
3) Questions and Answers : Unix/Linux : Yafu & gnfs-lasieve issue (Message 328)
Posted 27 Jan 2012 by Profile [AF>Le_Pommier] Aillas
Post:
It seems fixed with 128.09 mt...
4) Message boards : News : Multithreaded App in Test (Message 320)
Posted 25 Jan 2012 by Profile [AF>Le_Pommier] Aillas
Post:
What about credit?
I finish a WU on a 8 cores (runtime near 1h30) and get credit as previous single core version running a WU for 1H30.

It should grant credit for 8*1h30 right?
5) Questions and Answers : Unix/Linux : Yafu & gnfs-lasieve issue (Message 295)
Posted 17 Jan 2012 by Profile [AF>Le_Pommier] Aillas
Post:
When I was monitoring Yafu, I found a strange behavior about Yafu & gnfs-lasieve issue.

If I well understand, Yafu run first, and if doesn't find a factor, then it launch gnfs-lasieve to continue it search.

At some point, boinc manager pause yafu to crunch another wu.

So Yafu is displayed as "Waiting to run", but when I launch htop, I can see gnfs-lasieve still running at 100%.

Hope this help

6) Questions and Answers : Unix/Linux : Yafu zombie (Message 294)
Posted 17 Jan 2012 by Profile [AF>Le_Pommier] Aillas
Post:
Hi,

sometimes I have memory problems and Yafu crash (see this post)

So WU appears in Boinc Manager as done with status "Computation Error".

When I launch htop, I can see Yafu still running.

When these race conditions occurs whith 2 instance of Yafu running, I have 2 zombies.

If you need more information, I will try to provide some help.

Thanks
7) Questions and Answers : Unix/Linux : Process crash in low memory configuration (Message 270)
Posted 25 Nov 2011 by Profile [AF>Le_Pommier] Aillas
Post:
Hi,

I loose 3 WU (+7 hours, +4 hours, ~2 hours)
WU 1 - WU 2 - WU 3

all killed with SIGSEGV (11): Invalid memory reference

I found this on SIGSEGV

QUESTION
Signal 11, what does that mean?
ANSWER
Signal 11, or officially know as "segmentation fault", means that the program accessed a memory location that was not assigned. That's usually a bug in the program. So if you're writing your own program, that's the most likely cause. However, this FAQ will concentrate on the possibilities besides that.


About the context.

When I've checked the running processes before the application crash, yafu wasn't running but gnfs-lasieve.

I checked the processes because my computer has become slow.

I found that the memory get low. I run also yoyo/ecm project and nfs@home. I had 2 yoyo/ecm running, 1 nfs@home and 3 yafu/gnfs-lasieve running/in memory.

The memory (4GB) was use almost at 100% (3700 MB on 3888 MB) and the swap was used intensively (2500-3500 MB on 4700 MB)

So I suspect a problem in gnfs-lasieve with bad memory condition.

I change the memory settings in the projects (to use 50% memory and 75% swap).
Will see if it's better.

Regards

Ludo
8) Questions and Answers : Web site : Settings are reseted (Message 250)
Posted 4 Nov 2011 by Profile [AF>Le_Pommier] Aillas
Post:
Strange. I never change this setting since I set it to true.

I will keep an eye on it.

Thanks
9) Questions and Answers : Web site : Settings are reseted (Message 248)
Posted 3 Nov 2011 by Profile [AF>Le_Pommier] Aillas
Post:
I set the option 'Keep in memory' to fix a problem with long WUs that don't end up otherwise. There is a thread about this.

Today I found a C97 WU with more than 14 hours of computing.

I check the options and found the 'Keep in memory' was reseted to false.

Is it a bug during installation of a new version of the server?

I'm not sure if this occurs after the installation of a new server or after you restart the server yesterday.

Ludo
10) Message boards : Number crunching : Too Late To Validate (Message 130)
Posted 12 Sep 2011 by Profile [AF>Le_Pommier] Aillas
Post:
I have 2 WU yafu_C94_1315461657_286_0 & yafu_C94_1315461657_324_0 that compute for more than 18 hours. I think I won't be credited for those wu :(

Hope this help

I search in the event log and found these:

Thu 08 Sep 2011 08:50:13 AM CEST | yafu | Starting task yafu_C94_1315461657_324_0 using yafu version 12801
Thu 08 Sep 2011 08:50:30 AM CEST | yafu | Started download of yafu_C94_1315461657_286
Thu 08 Sep 2011 08:50:31 AM CEST | yafu | Finished download of yafu_C94_1315461657_286
Thu 08 Sep 2011 08:50:31 AM CEST | yafu | Starting task yafu_C94_1315461657_286_0 using yafu version 12801
Thu 08 Sep 2011 10:31:40 AM CEST | yafu | Restarting task yafu_C94_1315461657_324_0 using yafu version 12801
Thu 08 Sep 2011 10:31:40 AM CEST | yafu | Restarting task yafu_C94_1315461657_286_0 using yafu version 12801
Thu 08 Sep 2011 12:32:30 PM CEST | yafu | Restarting task yafu_C94_1315461657_324_0 using yafu version 12801
Thu 08 Sep 2011 12:32:30 PM CEST | yafu | Restarting task yafu_C94_1315461657_286_0 using yafu version 12801
Thu 08 Sep 2011 02:34:09 PM CEST | yafu | Restarting task yafu_C94_1315461657_324_0 using yafu version 12801
Thu 08 Sep 2011 02:34:09 PM CEST | yafu | Restarting task yafu_C94_1315461657_286_0 using yafu version 12801
Thu 08 Sep 2011 04:34:48 PM CEST | yafu | Restarting task yafu_C94_1315461657_324_0 using yafu version 12801
Thu 08 Sep 2011 04:34:48 PM CEST | yafu | Restarting task yafu_C94_1315461657_286_0 using yafu version 12801
Thu 08 Sep 2011 06:35:12 PM CEST | yafu | Restarting task yafu_C94_1315461657_324_0 using yafu version 12801
Thu 08 Sep 2011 06:35:12 PM CEST | yafu | Restarting task yafu_C94_1315461657_286_0 using yafu version 12801
Thu 08 Sep 2011 08:37:03 PM CEST | yafu | Restarting task yafu_C94_1315461657_324_0 using yafu version 12801
Thu 08 Sep 2011 08:37:03 PM CEST | yafu | Restarting task yafu_C94_1315461657_286_0 using yafu version 12801
Thu 08 Sep 2011 10:38:27 PM CEST | yafu | Restarting task yafu_C94_1315461657_324_0 using yafu version 12801
Thu 08 Sep 2011 10:38:27 PM CEST | yafu | Restarting task yafu_C94_1315461657_286_0 using yafu version 12801
Fri 09 Sep 2011 12:39:21 AM CEST | yafu | Restarting task yafu_C94_1315461657_324_0 using yafu version 12801
Fri 09 Sep 2011 12:39:21 AM CEST | yafu | Restarting task yafu_C94_1315461657_286_0 using yafu version 12801
Fri 09 Sep 2011 02:40:43 AM CEST | yafu | Restarting task yafu_C94_1315461657_324_0 using yafu version 12801
Fri 09 Sep 2011 02:40:43 AM CEST | yafu | Restarting task yafu_C94_1315461657_286_0 using yafu version 12801
Fri 09 Sep 2011 04:41:48 AM CEST | yafu | Restarting task yafu_C94_1315461657_324_0 using yafu version 12801
Fri 09 Sep 2011 04:41:48 AM CEST | yafu | Restarting task yafu_C94_1315461657_286_0 using yafu version 12801
Fri 09 Sep 2011 06:43:15 AM CEST | yafu | Restarting task yafu_C94_1315461657_324_0 using yafu version 12801
Fri 09 Sep 2011 06:43:15 AM CEST | yafu | Restarting task yafu_C94_1315461657_286_0 using yafu version 12801
Fri 09 Sep 2011 08:44:09 AM CEST | yafu | Restarting task yafu_C94_1315461657_324_0 using yafu version 12801
Fri 09 Sep 2011 08:44:09 AM CEST | yafu | Restarting task yafu_C94_1315461657_286_0 using yafu version 12801
Fri 09 Sep 2011 10:45:33 AM CEST | yafu | Restarting task yafu_C94_1315461657_324_0 using yafu version 12801
Fri 09 Sep 2011 10:45:33 AM CEST | yafu | Restarting task yafu_C94_1315461657_286_0 using yafu version 12801
Fri 09 Sep 2011 12:47:16 PM CEST | yafu | Restarting task yafu_C94_1315461657_324_0 using yafu version 12801
Fri 09 Sep 2011 12:47:16 PM CEST | yafu | Restarting task yafu_C94_1315461657_286_0 using yafu version 12801
Fri 09 Sep 2011 02:47:32 PM CEST | yafu | Restarting task yafu_C94_1315461657_324_0 using yafu version 12801
Fri 09 Sep 2011 03:49:00 PM CEST | yafu | Restarting task yafu_C94_1315461657_324_0 using yafu version 12801
Fri 09 Sep 2011 05:30:59 PM CEST | yafu | Sending scheduler request: To fetch work.
Fri 09 Sep 2011 05:30:59 PM CEST | yafu | Requesting new tasks for CPU
Fri 09 Sep 2011 05:31:01 PM CEST | yafu | Scheduler request completed: got 1 new tasks
Fri 09 Sep 2011 05:31:03 PM CEST | yafu | Started download of yafu-32k-linux64-12805
Fri 09 Sep 2011 05:31:03 PM CEST | yafu | Started download of yafu_C93_1315579582_318
Fri 09 Sep 2011 05:31:04 PM CEST | yafu | Finished download of yafu_C93_1315579582_318
Fri 09 Sep 2011 05:32:41 PM CEST | yafu | Finished download of yafu-32k-linux64-12805
Fri 09 Sep 2011 06:10:02 PM CEST | yafu | Restarting task yafu_C94_1315461657_324_0 using yafu version 12801
Fri 09 Sep 2011 08:07:53 PM CEST | yafu | Restarting task yafu_C94_1315461657_324_0 using yafu version 12801
Fri 09 Sep 2011 08:29:50 PM CEST | yafu | Sending scheduler request: To fetch work.
Fri 09 Sep 2011 08:29:50 PM CEST | yafu | Requesting new tasks for CPU
Fri 09 Sep 2011 08:29:52 PM CEST | yafu | Scheduler request completed: got 1 new tasks
Fri 09 Sep 2011 08:29:52 PM CEST | yafu | Result yafu_C94_1315461657_324_0 is no longer usable
Fri 09 Sep 2011 08:29:52 PM CEST | yafu | Result yafu_C94_1315461657_286_0 is no longer usable
Fri 09 Sep 2011 08:29:53 PM CEST | yafu | Computation for task yafu_C94_1315461657_324_0 finished
Fri 09 Sep 2011 08:29:53 PM CEST | yafu | Computation for task yafu_C94_1315461657_286_0 finished


11) Message boards : Number crunching : Too Late To Validate (Message 126)
Posted 12 Sep 2011 by Profile [AF>Le_Pommier] Aillas
Post:
That doesn't sound reasonable. The long wus should run ~2h. Do you restart your Boinc frequently? Which app version runs?


I'm running boinc version 6.12.34 on Linux.
I restart boinc only when I restart my linux, that means, rarely.

Currently, WU are finished between 2 sec and 12000 sec (> 3 hours).

About my 2 very long WU (more than 18 hours, when I left friday night) I can't give you more information. They were computed using yafu 128.01 and they are not more available in my list of completed tasks. Maybe you can find them in my history if you still have access to it.

12) Message boards : Number crunching : Too Late To Validate (Message 114)
Posted 9 Sep 2011 by Profile [AF>Le_Pommier] Aillas
Post:
AFAIR the deadline is 10h and a workunit (not the fast ones) runs ~1h.


Not quite true.

I have 2 WU that are running now since 16 hours each on a Core i7 3Ghz and they are not finished.

In my account, both are marked as "Timed out - no response".

I hope you will grant credit for those WU. I would not like to loose more than 30 hours of computing.

Regards







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