Trace number 269520

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds, and are wall clock time (not CPU time).

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
VALCSP 3.1SAT 20.3629 20.5601

DiagnosticValue
CHECKS17486300
NODES268

General information on the benchmark

Namezhou/
queens1.xml
MD5SUM726185241a7b95d15ca46fa1333f998a
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.448931
SatisfiableYES
(Un)Satisfiability was proved
Number of variables96
Number of constraints13680
Maximum constraint arity2
Maximum domain size96
Number of constraints which are defined in extension0
Number of constraints which are defined in intension13680
Global constraints used (with number of constraints)

Solver Data (download as text)

20.47	s SATISFIABLE
20.47	v 1 3 5 56 53 4 61 7 52 70 55 81 6 82 50 57 8 63 58 77 83 49 9 40 65 72 47 64 59 10 54 51 75 67 41 43 18 11 28 89 62 74 48 69 33 17 12 66 73 34 38 42 68 91 31 19 13 96 93 86 90 79 71 95 60 76 20 14 78 2 84 94 87 36 30 88 35 45 21 15 92 85 80 27 22 46 44 39 37 29 24 26 16 23 25 32 
20.47	d CHECKS 1.74863e+07
20.47	d NODES 268

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node11/watcher-269520-1168980896 -o ROOT/results/node11/solver-269520-1168980896 -C 1800 -M 900 /tmp/evaluation/269520-1168980896/VALCSP /tmp/evaluation/269520-1168980896/unknown.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 921600 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 972800 KiB
Current StackSize limit: 10240 KiB

/proc/loadavg: 1.99 1.48 1.19 5/86 10316
/proc/meminfo: memFree=1005328/2055920 swapFree=4171812/4192956
[pid=10315] ppid=10313 vsize=1996 CPUtime=0
/proc/10315/stat : 10315 (VALCSP) R 10313 10315 10259 0 -1 4194304 242 0 0 0 0 0 0 0 20 0 1 0 246484668 2043904 220 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134541953 0 0 4096 0 0 0 0 17 1 0 0
/proc/10315/statm: 499 220 64 8 0 171 0

[startup+0.117235 s]
/proc/loadavg: 1.99 1.48 1.19 5/86 10316
/proc/meminfo: memFree=1005328/2055920 swapFree=4171812/4192956
[pid=10315] ppid=10313 vsize=5164 CPUtime=0.11
/proc/10315/stat : 10315 (VALCSP) R 10313 10315 10259 0 -1 4194304 1034 0 0 0 11 0 0 0 20 0 1 0 246484668 5287936 1012 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 8422592 0 0 4096 0 0 0 0 17 1 0 0
/proc/10315/statm: 1291 1012 64 8 0 963 0
Current children cumulated CPU time (s) 0.11
Current children cumulated vsize (KiB) 5164

[startup+0.525315 s]
/proc/loadavg: 1.99 1.48 1.19 5/86 10316
/proc/meminfo: memFree=1005328/2055920 swapFree=4171812/4192956
[pid=10315] ppid=10313 vsize=16444 CPUtime=0.51
/proc/10315/stat : 10315 (VALCSP) R 10313 10315 10259 0 -1 4194304 3785 0 0 0 50 1 0 0 24 0 1 0 246484668 16838656 3763 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529172 0 0 4096 0 0 0 0 17 1 0 0
/proc/10315/statm: 4111 3763 65 8 0 3783 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 16444

[startup+1.34648 s]
/proc/loadavg: 1.99 1.49 1.19 3/86 10316
/proc/meminfo: memFree=969744/2055920 swapFree=4171812/4192956
[pid=10315] ppid=10313 vsize=37564 CPUtime=1.32
/proc/10315/stat : 10315 (VALCSP) R 10313 10315 10259 0 -1 4194304 9057 0 0 0 129 3 0 0 25 0 1 0 246484668 38465536 9035 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 8414843 0 0 4096 0 0 0 0 17 1 0 0
/proc/10315/statm: 9391 9035 65 8 0 9063 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 37564

[startup+2.9838 s]
/proc/loadavg: 1.99 1.49 1.19 3/86 10316
/proc/meminfo: memFree=935952/2055920 swapFree=4171812/4192956
[pid=10315] ppid=10313 vsize=79672 CPUtime=2.94
/proc/10315/stat : 10315 (VALCSP) R 10313 10315 10259 0 -1 4194304 19592 0 0 0 286 8 0 0 25 0 1 0 246484668 81584128 19570 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134528720 0 0 4096 0 0 0 0 17 1 0 0
/proc/10315/statm: 19918 19570 65 8 0 19590 0
Current children cumulated CPU time (s) 2.94
Current children cumulated vsize (KiB) 79672

[startup+6.26745 s]
/proc/loadavg: 1.99 1.49 1.19 3/86 10316
/proc/meminfo: memFree=827344/2055920 swapFree=4171812/4192956
[pid=10315] ppid=10313 vsize=166404 CPUtime=6.19
/proc/10315/stat : 10315 (VALCSP) R 10313 10315 10259 0 -1 4194304 41311 0 0 0 603 16 0 0 25 0 1 0 246484668 170397696 41289 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529388 0 0 4096 0 0 0 0 17 1 0 0
/proc/10315/statm: 41601 41289 65 8 0 41273 0
Current children cumulated CPU time (s) 6.19
Current children cumulated vsize (KiB) 166404

[startup+12.7277 s]
/proc/loadavg: 1.99 1.51 1.20 3/86 10316
/proc/meminfo: memFree=615960/2055920 swapFree=4171812/4192956
[pid=10315] ppid=10313 vsize=339640 CPUtime=12.59
/proc/10315/stat : 10315 (VALCSP) R 10313 10315 10259 0 -1 4194304 84636 0 0 0 1226 33 0 0 25 0 1 0 246484668 347791360 84614 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/10315/statm: 84910 84614 65 8 0 84582 0
Current children cumulated CPU time (s) 12.59
Current children cumulated vsize (KiB) 339640

Child status: 0
Real time (s): 20.5601
CPU time (s): 20.3629
CPU user time (s): 19.757
CPU system time (s): 0.605907
CPU usage (%): 99.041
Max. virtual memory (cumulated for all children) (KiB): 525548

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 19.757
system time used= 0.605907
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 131164
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 8
involuntary context switches= 830

runsolver used 0.026995 s user time and 0.072988 s system time

The end

Launcher Data (download as text)

Begin job on node11 on Tue Jan 16 20:54:56 UTC 2007


IDJOB= 269520
IDBENCH= 6908
IDSOLVER= 90
FILE ID= node11/269520-1168980896

PBS_JOBID= 3566051

Free space on /tmp= 66561 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/zhou/queens1.xml
COMMAND LINE= /tmp/evaluation/269520-1168980896/VALCSP /tmp/evaluation/269520-1168980896/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node11/watcher-269520-1168980896 -o ROOT/results/node11/solver-269520-1168980896 -C 1800 -M 900  /tmp/evaluation/269520-1168980896/VALCSP /tmp/evaluation/269520-1168980896/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  726185241a7b95d15ca46fa1333f998a

RANDOM SEED= 20823690

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.261
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5931.00
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.261
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1005808 kB
Buffers:         53956 kB
Cached:         320944 kB
SwapCached:       2840 kB
Active:         807460 kB
Inactive:       177080 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1005808 kB
SwapTotal:     4192956 kB
SwapFree:      4171812 kB
Dirty:            3908 kB
Writeback:           0 kB
Mapped:         627460 kB
Slab:            49208 kB
Committed_AS:  8024704 kB
PageTables:       3432 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66561 MiB



End job on node11 on Tue Jan 16 20:55:17 UTC 2007