1) Message boards : Sixtrack Application : does sixtrack or sixtracktest require VBOX? (Message 46579)
Posted 5 Apr 2022 by Profile jay
Post:
worked it out.
VBox not required for sixtrack.
2) Message boards : Sixtrack Application : does sixtrack or sixtracktest require VBOX? (Message 46388)
Posted 28 Feb 2022 by Profile jay
Post:
Greetings.
I can not find a requirement webpage for the LHC requirements.
I did
- set BIOS VM setting
- reinstall BOINC with VBOX
- successfully run an Atlas WU.
But since I could not find out what the wu did, I cancelled - and restarted.
This time, I will try sixtrack - without VBOX.
But I see:
Mon 28 Feb 2022 01:03:25 PM EST | LHC@home | Sending scheduler request: To fetch work.
Mon 28 Feb 2022 01:03:25 PM EST | LHC@home | Requesting new tasks for CPU and AMD/ATI GPU
Mon 28 Feb 2022 01:03:26 PM EST | LHC@home | Scheduler request completed: got 0 new tasks
Mon 28 Feb 2022 01:03:26 PM EST | LHC@home | No tasks sent
Mon 28 Feb 2022 01:03:26 PM EST | LHC@home | No tasks are available for SixTrack
Mon 28 Feb 2022 01:03:26 PM EST | LHC@home | No tasks are available for sixtracktest
Mon 28 Feb 2022 01:03:26 PM EST | LHC@home | Message from server: VirtualBox is not installed

So, is VBOX really required for sixtrack WUs?

Thanks, Jay
3) Message boards : Number crunching : can't open server log file (Message 26870)
Posted 11 Oct 2014 by Profile jay
Post:
Hi,

The problem is at CERN - and is/was reported under the "news" board.

http://lhcathomeclassic.cern.ch/sixtrack/forum_thread.php?id=3882

Have a great day.....
Jay
4) Message boards : Number crunching : Tasks exceeding disk limit (Message 26773)
Posted 3 Oct 2014 by Profile jay
Post:
Another weird thing....

I looked at the co-pilots of the WU that went - over-limit for me.

of the 30, I only saw one wu that was sent to a client that did not fail.

http://lhcathomeclassic.cern.ch/sixtrack/workunit.php?wuid=21177447

I wonder why it didn't have the problem..

Jay
5) Message boards : Number crunching : Tasks exceeding disk limit (Message 26772)
Posted 3 Oct 2014 by Profile jay
Post:
Greetings,

Also getting a task result of "Maximum disk usage exceeded".

Is there a patch we can make to allow more disk space?
Or, is this embedded in the task code??

I'm getting these around 15 to 20 minutes into the tasks.

Thanks,
Jay

-- edit--

PS
The disk limit does not seem to be related to the BOINC disk resource limit that the user sets up.
( I have >70 GB allocated for BOINC, only 1.7 used.
Atlas had used up a large pre-allocated disk space...)
6) Message boards : Number crunching : Status 10th May, Version 451.07 (Message 26428)
Posted 12 May 2014 by Profile jay
Post:
Greetings!!

The server status [edit] says there is work. But can't get any - linux or windows
a request goes out, the reponse comes back "no tasks sent".

I turned on logging and got:

Mon 12 May 2014 10:02:32 AM EDT	LHC@home 1.0	update requested by user
Mon 12 May 2014 10:02:35 AM EDT	LHC@home 1.0	Sending scheduler request: Requested by user.
Mon 12 May 2014 10:02:35 AM EDT	LHC@home 1.0	Requesting new tasks
Mon 12 May 2014 10:02:35 AM EDT		[http_debug] HTTP_OP::init_post(): http://lhcathomeclassic.cern.ch/sixtrack_cgi/cgi
Mon 12 May 2014 10:02:35 AM EDT		[http_debug] [ID#1] Info:  About to connect() to lhcathomeclassic.cern.ch port 80 (#0)
Mon 12 May 2014 10:02:35 AM EDT		[http_debug] [ID#1] Info:    Trying 128.142.138.22... 
Mon 12 May 2014 10:02:36 AM EDT		[http_debug] [ID#1] Info:  Connected to lhcathomeclassic.cern.ch (128.142.138.22) port 80 (#0)
Mon 12 May 2014 10:02:36 AM EDT		[http_debug] [ID#1] Sent header to server: POST /sixtrack_cgi/cgi HTTP/1.1
Mon 12 May 2014 10:02:36 AM EDT		[http_debug] [ID#1] Sent header to server: User-Agent: BOINC client (i686-pc-linux-gnu 6.10.58)
Mon 12 May 2014 10:02:36 AM EDT		[http_debug] [ID#1] Sent header to server: Host: lhcathomeclassic.cern.ch
Mon 12 May 2014 10:02:36 AM EDT		[http_debug] [ID#1] Sent header to server: Accept: */*
Mon 12 May 2014 10:02:36 AM EDT		[http_debug] [ID#1] Sent header to server: Accept-Encoding: deflate, gzip
Mon 12 May 2014 10:02:36 AM EDT		[http_debug] [ID#1] Sent header to server: Content-Type: application/x-www-form-urlencoded
Mon 12 May 2014 10:02:36 AM EDT		[http_debug] [ID#1] Sent header to server: Content-Length: 11807
Mon 12 May 2014 10:02:36 AM EDT		[http_debug] [ID#1] Sent header to server: Expect: 100-continue
Mon 12 May 2014 10:02:36 AM EDT		[http_debug] [ID#1] Sent header to server: 
Mon 12 May 2014 10:02:36 AM EDT		[http_debug] [ID#1] Received header from server: HTTP/1.1 100 Continue
Mon 12 May 2014 10:02:36 AM EDT		[http_debug] [ID#1] Received header from server: HTTP/1.1 200 OK
Mon 12 May 2014 10:02:36 AM EDT		[http_debug] [ID#1] Received header from server: Date: Mon, 12 May 2014 14:02:36 GMT
Mon 12 May 2014 10:02:36 AM EDT		[http_debug] [ID#1] Received header from server: Server: Apache
Mon 12 May 2014 10:02:36 AM EDT		[http_debug] [ID#1] Received header from server: Connection: close
Mon 12 May 2014 10:02:36 AM EDT		[http_debug] [ID#1] Received header from server: Transfer-Encoding: chunked
Mon 12 May 2014 10:02:36 AM EDT		[http_debug] [ID#1] Received header from server: Content-Type: text/xml
Mon 12 May 2014 10:02:36 AM EDT		[http_debug] [ID#1] Received header from server: 
Mon 12 May 2014 10:02:36 AM EDT		[http_debug] [ID#1] Info:  Expire cleared
Mon 12 May 2014 10:02:36 AM EDT		[http_debug] [ID#1] Info:  Closing connection #0
Mon 12 May 2014 10:02:36 AM EDT	LHC@home 1.0	Scheduler request completed: got 0 new tasks
Mon 12 May 2014 10:02:36 AM EDT	LHC@home 1.0	Message from server: No tasks sent



Thanks,
Jay
7) Message boards : News : WU Submission SUSPENDED 19th April, 2014 (Message 26389)
Posted 1 May 2014 by Profile jay
Post:
Greetings!!

About the same here.
32 and 64 bit Linux both finish Test WU in about 1 second (inconclusive)
64 bit Vista runs to completion. (about 1,200 seconds)
32 bit XP, well, still In progress.. (Assume about 3,000 seconds)

I stopped getting tasks on Linux for a while.

Hope results are productive.

:)

Jay
8) Message boards : Number crunching : waiting pending validation. (Message 26306)
Posted 22 Mar 2014 by Profile jay
Post:
I found some WU waiting on Pending validation.
There are two tasks assigned - but both completed on the 19March2014.

Is this a hiccup, Or did the results not match?
I found a couple similar WU.
Here is one:
http://lhcathomeclassic.cern.ch/sixtrack/workunit.php?wuid=15523419

Thanks in advance!!

Jay
:::edit:::
Here are more examples from my WU-Pending (userid=81571)
http://lhcathomeclassic.cern.ch/sixtrack/workunit.php?wuid=15523420
http://lhcathomeclassic.cern.ch/sixtrack/workunit.php?wuid=15523422
http://lhcathomeclassic.cern.ch/sixtrack/workunit.php?wuid=15523426
http://lhcathomeclassic.cern.ch/sixtrack/workunit.php?wuid=15523428

Perhaps these are where the Linux and Windows results differ slightly??
T H A N K S Jay
::: end edit :::
9) Message boards : Number crunching : 1.6 GHZ takes over 160,000 seconds. Possible to get LHCatH preference for short WU?? (Message 26251)
Posted 9 Mar 2014 by Profile jay
Post:
Thank you both!

I don't mind running the longer WU, but on this (slower) PC there is a danger of timing out - especially if I have to shut down while travelling..

Again, thank you for your responses....
Jay
10) Message boards : Number crunching : 1.6 GHZ takes over 160,000 seconds. Possible to get LHCatH preference for short WU?? (Message 26247)
Posted 8 Mar 2014 by Profile jay
Post:
Greetings

This wu took over 163,000 seconds.

http://lhcathomeclassic.cern.ch/sixtrack/workunit.php?wuid=13914849

Yes, it a slower pc - but should it take nearly 5 times as long as a cpu that is twice as fast?
Is the floating processors that slower?
24-Jan-2014 08:22:41 [---] Processor: 2 GenuineIntel Intel(R) Atom(TM) CPU N270 
  @ 1.60GHz [Family 6 Model 28 Stepping 2]
24-Jan-2014 08:22:41 [---] Processor features: fpu vme de tsc msr pae mce cx8 ap
ic sep mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx 
constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl est tm2 
ssse3 xtpr pdcm movbe lahf_lm dtherm
24-Jan-2014 08:22:41 [---] OS: Linux: 3.2.0-4-686-pae
24-Jan-2014 08:22:41 [---] Memory: 493.15 MB physical, 953.00 MB virtual
24-Jan-2014 08:22:41 [---] Disk: 4.58 GB total, 531.53 MB free


yes, it has little memory - but I monitored swapping and there was none going on.
It is an HP mini with an ssd drive - there was sufficient drive space as well.

All this said. The other client finished in 32,950. so the WU should be OK.

I have processed other WU on this PC http://lhcathomeclassic.cern.ch/sixtrack/results.php?hostid=10310501 - anther wu took 166,684.99 seconds - over 46 hours.


Main question:
Could an LHCatHome preference be made to avoid long WU??

Thank you all...

Jay

edit - yes, the '6' in the wu name means it takes lots of loops.
But can I avoid these? - end_edit
11) Message boards : Number crunching : 13 jan 2014 -- Error while computing (Message 26119)
Posted 13 Jan 2014 by Profile jay
Post:
Greetings.
Heads up.
A batch of WU came out that get "error while computing"...

Here is a sample of results on a wu
http://lhcathomeclassic.cern.ch/sixtrack/workunit.php?wuid=11562343

appears to include wu
11562334 through 11562353 (at least)

I'll hold off for a while to see if other platforms get the same error.
Or, should I ask for more and process out as errors?


Have a great day,
Jay
12) Message boards : Number crunching : News, Status and Plans, 19th November, 2013 (Message 26081)
Posted 21 Nov 2013 by Profile jay
Post:
Hello Eric!

First of all, thank you for the status report.
It gave an in-depth sight of the trials and tribulations of the lhc@home effort.

Coming out with exact floating point results on different platforms is amazing.

[begin slightly-off-topic]
I share your concern about getting quick results back to the physicists.
I'm running beta Seti@home and they have a deadline for GPU of about 6 weeks.
IMHOP, this is a waste of database resources that follow getting the results from different clients to validate. I applaud lhc@home use of a shorter deadline.
I would suggest an even shorter deadline, but doing that can put a limit on the performance of the volunteer's machine.
[/begin slightly-off-topic]

About the disk space.
Is starting a pay-pal donation account within reason?
Or is showing due diligence too mind-boggling difficult?


Thanks again for the report..

Jay


13) Message boards : Number crunching : upload problem - zip? (31 Oct 2013) (Message 26049)
Posted 2 Nov 2013 by Profile jay
Post:
Hi,
I wrote the first message because all that showed up (that I could see)
was the -161 error code during file transfer (which says the program crashed during upload).

Apparently another round of tests were released.
So far they are passing

http://lhcathomeclassic.cern.ch/sixtrack/workunit.php?wuid=10011467
through
http://lhcathomeclassic.cern.ch/sixtrack/workunit.php?wuid=10011484

so this is now, probably, a non-issue.

Jay

[edit improved message and increased range of ID of WU.]
14) Message boards : Number crunching : upload problem - zip? (31 Oct 2013) (Message 26047)
Posted 1 Nov 2013 by Profile jay
Post:
OK.
Same results as Richard - now, it look like there are no sixtracktest WU.

So I wrote a script to do updates and see if any sixtracktest WU were downloaded.
If so, suspend the LHCatHome project - until I can drop by and set logging flags.

A plan, anyway.

have fun,
Jay
15) Message boards : Number crunching : upload problem - zip? (31 Oct 2013) (Message 26046)
Posted 31 Oct 2013 by Profile jay
Post:
Greetings.

Yes, they were all sixtracktest.

I tried to get more, but just got the regular applications.

My apologies for not noticing the type of application.

((Have to take cat to vet. will try again later to get test WU.))

Thanks,
Jay
16) Message boards : Number crunching : upload problem - zip? (31 Oct 2013) (Message 26043)
Posted 31 Oct 2013 by Profile jay
Post:
The Malaria Control project had an interesting report about the -161 error message:

http://www.malariacontrol.net/forum_thread.php?id=714&nowrap=true#6817

They said that the error happened because the program (WU) had previously crashed - and the cause of the crash was not reported.
So this may be difficult to debug.

here are some examples:
http://lhcathomeclassic.cern.ch/sixtrack/workunit.php?wuid=9982844

http://lhcathomeclassic.cern.ch/sixtrack/workunit.php?wuid=9982842

http://lhcathomeclassic.cern.ch/sixtrack/workunit.php?wuid=9982837

http://lhcathomeclassic.cern.ch/sixtrack/workunit.php?wuid=9982836

These wu were reassigned to about 10 different clients and failed at each client...

Would adding debug help? (which ones?)

Thanks!!
Jay
17) Message boards : Number crunching : upload problem - zip? (31 Oct 2013) (Message 26042)
Posted 31 Oct 2013 by Profile jay
Post:
I see this error - as wu gets re-assigned many times.

<core_client_version>7.0.25</core_client_version>
<![CDATA[
<stderr_txt>
08:45:08 (1512): called boinc_finish

</stderr_txt>
<message>
upload failure: <file_xfer_error>
<file_name>wzip_w30cbb3rd__1__s__64.31_59.32__12_12.5__3__54_1_sixvf_boinc12_0_6</file_name>
<error_code>-161</error_code>
</file_xfer_error>

</message>
]]>



Thanks !!
Jay
18) Message boards : Cafe LHC : Anyone make it to CERN OpenDays? (Message 26039)
Posted 28 Oct 2013 by Profile jay
Post:
September 28 and 29, (2013) CERN had an Open House or OpenDays.

Some of the lectures are now online.
http://home.web.cern.ch/about/updates/2013/10/cern-talks-open-days-lectures-now-available-watch-online

If you were able to make it to Geneva, please share what you saw and enjoyed.

I couldn't make it Saturday, but I thoroughly enjoyed tromping around in the rain on Sunday. There must have been at least 100 volunteers guiding and explaining the experiments and the infrastructure. Opendays was extremely well organized - they even provided shuttle buses between the Meyrin Campus, Prevessin Campus, and experiment access sites.

I was able to see:
Introduction talks and exhibits at the main (globe) entrance
CERN Workshops- Fabication, milling and testing
The synchrocyclotron
Compact Linear Collider
Detectors
Linear Accelerators
Super Proton Cyclotron
LHCb experiment

My thanks to all those who gave the presentations and guided us around.
Jay
19) Message boards : Number crunching : October 22 2013 - Upload errors (Message 25913)
Posted 22 Oct 2013 by Profile jay
Post:
Getting these errors for some time.
from
Mon 21 Oct 2013 11:02:27 PM EDT | LHC@home 1.0 | Started upload of w2_jobslhc31b_15cm_145_w2__6__s__62.31_60.32__18_20__5__52.5_1_sixvf_boinc10229_0_6
Mon 21 Oct 2013 11:02:29 PM EDT | LHC@home 1.0 | [error] Error reported by file upload server: can't open log file '../log_boinc05/file_upload_handler.log' (errno: 9)

until

Tue 22 Oct 2013 06:40:58 AM EDT | LHC@home 1.0 | Started upload of w2_jobslhc31b_15cm_145_w2__6__s__62.31_60.32__18_20__5__45_1_sixvf_boinc10228_1_9
Tue 22 Oct 2013 06:41:00 AM EDT | LHC@home 1.0 | [error] Error reported by file upload server: can't open log file '../log_boinc05/file_upload_handler.log' (errno: 9)

so- about 7 hours worth of lots (84) of uploads stalled in project backoff..

I have tried manual 'retry now' with negative results.
Anything else we can try?
Or, just wait until filespace made on server?

Thanks!
Jay

----edit-----
I reposted this from similar thread from April 2013

Richard H. has answer:

http://lhcathomeclassic.cern.ch/sixtrack/forum_thread.php?id=3736&postid=25910#25910
20) Message boards : Number crunching : Retrospect: June, July, August 2013 WU? (Message 25848)
Posted 19 Sep 2013 by Profile jay
Post:
Thank you!

It makes sense to purge the db.

But, that said, why are WU from March and May (2013) still showing?

Jay

PS.
I'm quite happy to see an initial deadline of around 10 days - rather than 8 weeks.


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