Posts by Mattia Verga

1) Message boards : Number crunching : Big problem: work units running with negative time. (Message 25844) Posted 18 Sep 2013 by Mattia Verga Post: I got 8 very quick WUs (less than 30 seconds) and they all completed without errors, using 4465 pni. (Fedora 19 x86_64 on AMD cpu)
2) Message boards : Number crunching : All tasks end with error (Message 25808) Posted 8 Sep 2013 by Mattia Verga Post: 'file' reports it as "sixtrack_lin64_4463_pni.exe: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), statically linked, for GNU/Linux 2.6.9, not stripped", guess it isn't really a 64-bit app? I think that's a good point... the executable seems to be a 32bit one, not 64bit, and the 'statically linked' stuff makes me wonder if can be a library problem... maybe for those who have also 32bit libraries installed SixTrack works, for whose who have only 64bit libraries SixTrack crashes. At least there's something wrong in the compiler, it outputs 32bit executables for 64bit systems.
3) Message boards : Number crunching : All tasks end with error (Message 25799) Posted 7 Sep 2013 by Mattia Verga Post: Thanks for the feedback. I am at home now so it would be good if you could just tell me whi Linux you are running. I found your AMD description. Thanks. Eric. I'm running Fedora 19 64bit. Here are starting lines in Boinc output: sab 07 set 2013 15:08:15 CEST \| \| No config file found - using defaults sab 07 set 2013 15:08:15 CEST \| \| Starting BOINC client version 7.0.65 for x86_64-pc-linux-gnu sab 07 set 2013 15:08:15 CEST \| \| log flags: file_xfer, sched_ops, task sab 07 set 2013 15:08:15 CEST \| \| Libraries: libcurl/7.29.0 NSS/3.15.1 zlib/1.2.7 libidn/1.26 libssh2/1.4.3 sab 07 set 2013 15:08:15 CEST \| \| Data directory: /home/marvin/Boinc sab 07 set 2013 15:08:15 CEST \| \| Processor: 4 AuthenticAMD AMD Phenom(tm) II X4 965 Processor [Family 16 Model 4 Stepping 3] sab 07 set 2013 15:08:15 CEST \| \| Processor features: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nopl nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt hw_pstate npt lbrv svm_lock nrip_save sab 07 set 2013 15:08:15 CEST \| \| OS: Linux: 3.10.10-200.fc19.x86_64 sab 07 set 2013 15:08:15 CEST \| \| Memory: 7.80 GB physical, 7.78 GB virtual sab 07 set 2013 15:08:15 CEST \| \| Disk: 86.89 GB total, 80.09 GB free sab 07 set 2013 15:08:15 CEST \| \| Local time is UTC +2 hours sab 07 set 2013 15:08:15 CEST \| \| No usable GPUs found sab 07 set 2013 15:08:15 CEST \| SETI@home \| URL http://setiathome.berkeley.edu/; Computer ID 6981088; resource share 100 sab 07 set 2013 15:08:15 CEST \| Einstein@Home \| URL http://einstein.phys.uwm.edu/; Computer ID 7130990; resource share 100 sab 07 set 2013 15:08:15 CEST \| SETI@home Beta Test \| URL http://setiweb.ssl.berkeley.edu/beta/; Computer ID 63147; resource share 100 sab 07 set 2013 15:08:15 CEST \| Asteroids@home \| URL http://asteroidsathome.net/boinc/; Computer ID 23986; resource share 100 sab 07 set 2013 15:08:15 CEST \| LHC@home 1.0 \| URL http://lhcathomeclassic.cern.ch/sixtrack/; Computer ID 10286524; resource share 100 sab 07 set 2013 15:08:15 CEST \| malariacontrol.net \| URL http://www.malariacontrol.net/; Computer ID 628816; resource share 100 sab 07 set 2013 15:08:15 CEST \| Milkyway@Home \| URL http://milkyway.cs.rpi.edu/milkyway/; Computer ID 515018; resource share 100 sab 07 set 2013 15:08:15 CEST \| SimOne@home \| URL http://mmgboinc.unimi.it/; Computer ID 3627; resource share 100 sab 07 set 2013 15:08:15 CEST \| rosetta@home \| URL http://boinc.bakerlab.org/rosetta/; Computer ID 1612749; resource share 100 sab 07 set 2013 15:08:15 CEST \| SETI@home \| General prefs: from SETI@home (last modified 19-Mar-2013 23:43:11) sab 07 set 2013 15:08:15 CEST \| SETI@home \| Computer location: home sab 07 set 2013 15:08:15 CEST \| SETI@home \| General prefs: no separate prefs for home; using your defaults sab 07 set 2013 15:08:15 CEST \| \| Reading preferences override file sab 07 set 2013 15:08:15 CEST \| \| Preferences: sab 07 set 2013 15:08:15 CEST \| \| max memory usage when active: 5589.97MB sab 07 set 2013 15:08:15 CEST \| \| max memory usage when idle: 7586.39MB sab 07 set 2013 15:08:15 CEST \| \| max disk usage: 5.00GB sab 07 set 2013 15:08:15 CEST \| \| max CPUs used: 2 sab 07 set 2013 15:08:15 CEST \| \| suspend work if non-BOINC CPU load exceeds 50 % sab 07 set 2013 15:08:15 CEST \| \| (to change preferences, visit a project web site or select Preferences in the Manager) sab 07 set 2013 15:08:15 CEST \| \| Not using a proxy
4) Message boards : Number crunching : All tasks end with error (Message 25783) Posted 6 Sep 2013 by Mattia Verga Post: All tasks with the new SixTrack 446.03 are erroring out on my PC, I checked and I saw they're crashing also on some other users, but not for all: http://lhcathomeclassic.cern.ch/sixtrack/workunit.php?wuid=9028119 http://lhcathomeclassic.cern.ch/sixtrack/workunit.php?wuid=9032177 http://lhcathomeclassic.cern.ch/sixtrack/workunit.php?wuid=9112361 The error is "-226 (0xffffffffffffff1e) ERR_TOO_MANY_EXITS" Already tried to reset LHC project in Boinc... what's going on? (other Bpoinc projects are working fine on my machine)
5) Message boards : Number crunching : How is the SSE3 thing coming along? (Message 24264) Posted 11 Jul 2012 by Mattia Verga Post: I saw that a new PNI app is available, however my PC has just downloaded a SSE2 one: http://lhcathomeclassic.cern.ch/sixtrack/show_host_detail.php?hostid=9932051 My current wingman has a linux PC with SSE3 app: http://lhcathomeclassic.cern.ch/sixtrack/show_host_detail.php?hostid=9966949 But if you look at the task list of that PC it shows that the first WU was SSE3, the second a plain one, and now another SSE3... it seems to me that hosts are just downloading random versions...
6) Message boards : Number crunching : How is the SSE3 thing coming along? (Message 24183) Posted 9 Jul 2012 by Mattia Verga Post: BOINC itself doesn't detect anything. It simply reports what the system (the kernel) detects (and what you can see with the /proc/cpuinfo command). BOINC versions prior to 7.x have a bug that prevents all the flags from being read (see my example above). But, yes, PNI is reported also for older versions... SSE3 is never reported for AMD CPUs (only the latest CPUs based on Bulldozer architecture have SSSE3 and SSE4.1, but even here SSE3 is reported as PNI).
7) Message boards : Number crunching : How is the SSE3 thing coming along? (Message 24169) Posted 9 Jul 2012 by Mattia Verga Post: I've found this discussion on the boinc developers forum. I have a AMD Phenom II 965 with linux, in /proc/cpuinfo I don't have SSE3 or SSSE3 flags, but I can see PNI and SSE4a: # less /proc/cpuinfo \| grep flags flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nopl nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt hw_pstate npt lbrv svm_lock nrip_save Using BOINC 6.x I get only partial flags: lun 09 lug 2012 11:33:54 CEST \| \| Processor features: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nopl nonstop_tsc extd_apicid pni monitor cx16 popcnt But using BOINC 7.0.28 I can see all flags: 09-Jul-2012 11:25:46 [---] Processor features: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nopl nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt hw_pstate npt lbrv svm_lock nrip_save So the problem of LHC not using SSE3 is not project related, but it's due to the fact that linux systems doesn't show SSE3 flag... I think you should use PNI instead. ...however my host doesn't download SSE2 apps neither.... EDIT: look also at this and this... all confirm that in linux kernel pni=sse3
8) Message boards : Number crunching : SixTrack and LHC@home status (Message 23904) Posted 3 Mar 2012 by Mattia Verga Post: A lot of time passed since last update... any news on developing the new client version? The 530.10 is really slow :-( Thanks
9) Message boards : Number crunching : SixTrack and LHC@home status (Message 23688) Posted 12 Nov 2011 by Mattia Verga Post: It would be great if somebody has an old Pentium 3 machine (NO SSE2) Linux so we could check it works on "any" PC. I have an old motherboard with Socket A CPU (I don't remember if under the fan there's an Athlon or a Duron) that support only SSE (no SSE2). If it can be useful I can find some pieces to build a PC on the fly and install a Linux onto that.
10) Message boards : Number crunching : Waiting on Linux App (Message 22248) Posted 19 Apr 2010 by Mattia Verga Post: it could be a couple of weeks due to him going on holidays ...it\'s a very long holiday! :-p
11) Message boards : Number crunching : platform 'windows_x86_64' not found (Message 17587) Posted 28 Jul 2007 by Mattia Verga Post: Hope that too ;-)
12) Message boards : Number crunching : Statistics not updated (Message 15981) Posted 3 Jan 2007 by Mattia Verga Post: LHC actually isn't exporting stats. See this thread http://lhcathome.cern.ch/forum_thread.php?id=2276 I think new admins have also other priorities at the moment... we must have patience.
13) Message boards : Number crunching : Fairer distribuiton of work(Flame Fest 2007) (Message 14918) Posted 1 Oct 2006 by Mattia Verga Post: I agree with River. I think limiting the cache should be helpful also to speed up crunching. If a single user can download 50 or 100 WU, where's the power of distributed computing?? We all have to wait that user to complete his queue for having another batch of WU.
14) Message boards : Number crunching : Garfield is coming.... (Message 14901) Posted 29 Sep 2006 by Mattia Verga Post: Anyone knows what Garfield is intended for?
15) Message boards : Number crunching : Log in error (Message 14793) Posted 21 Sep 2006 by Mattia Verga Post: When I try to acces my account if I don't check the field "Stay logged in on this computer" it doesn't log me in. Anyone see the same behaviour?
16) Message boards : LHC@home Science : Lhc construction status (Message 11641) Posted 10 Dec 2005 by Mattia Verga Post: It would be nice having more news about progress in LHC construction... Correct me if I wrong, but the application version should change every time a set of magnets are installed. Current application is 4.67 till 12 April... what does this means?
17) Questions and Answers : Sixtrack : optimized clients (Message 9518) Posted 21 Aug 2005 by Mattia Verga Post: Hi all, I saw that for seti@home there are some optimized clients for different cpu types. In my case the optimized client takes 15% shorter time to complete a WU. Is there some optimized client for LHC too?
18) Questions and Answers : Windows : "zero cpu time" bug (Message 6232) Posted 1 Mar 2005 by Mattia Verga Post: Hi all, is it possible that this bug is related to the fact that lhc doesn't update client_state.xml file at the end of processing? I've set preferences to keep application in memory when boinc switches trough applications. When I'm processing a WU and boinc switches to other projects I see that cpu time is the time that the WU was processed before the switch. If I process a WU in a single step (e.g. boinc switches after 45 min and a WU require 40 min), the cpu time is set to zero...
19) Questions and Answers : Windows : lhc doesn't save progress (Message 6057) Posted 24 Feb 2005 by Mattia Verga Post: I noticed a strange behaviour of LHC in some WUs: computation reaches 90-95% (40 min)... boinc switches trough other projects... when the computation of the previous Lhc WU restarts, it starts from 0% (0 min).... the client isn't saving progress of the WU (in fact BoincLogX shows no progress - 0.00%)
20) Message boards : Number crunching : exited with zero status (Message 4710) Posted 31 Oct 2004 by Mattia Verga Post: I saw it, but after upgrading to boinc 4.13 it stopped giving this error. What version of Boinc do you run? I think you must upgrade to 4.13.

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