Trace number 191966

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 3.0SAT 4.45032 4.4933

DiagnosticValue
CHECKS8449360
NODES94

General information on the benchmark

Namequeens/
queens-80.xml
MD5SUM90faeea2a2a9a8064660169022a4eca9
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 benchmark0.152976
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables80
Number of constraints3160
Maximum constraint arity2
Maximum domain size80
Number of constraints which are defined in extension0
Number of constraints which are defined in intension3160
Global constraints used (with number of constraints)

Solver Data (download as text)

4.47	s SATISFIABLE
4.47	v 1 3 5 44 42 4 50 7 70 57 74 61 6 39 30 40 8 54 36 41 48 38 9 59 55 45 37 35 49 10 27 43 65 56 53 67 15 11 26 69 75 80 25 52 73 79 12 62 72 16 46 78 58 66 29 18 13 71 34 64 51 32 60 17 68 23 76 14 63 22 77 19 33 2 20 24 31 21 28 47 
4.47	d CHECKS 8.44936e+06
4.47	d NODES 94
4.47

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/node40/watcher-191966-1168096436 -o ROOT/results/node40/solver-191966-1168096436 -C 1800 -M 900 /tmp/evaluation/191966-1168096436/VALCSP /tmp/evaluation/191966-1168096436/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: 0.09 0.52 1.24 5/81 31527
/proc/meminfo: memFree=1636048/2055920 swapFree=4192812/4192956
[pid=31526] ppid=31524 vsize=18540 CPUtime=0
/proc/31526/stat : 31526 (runsolver) R 31524 31526 30790 0 -1 4194368 16 0 0 0 0 0 0 0 18 0 1 0 158043691 18984960 279 18446744073709551615 4194304 4267372 548682069088 18446744073709551615 264519609639 0 0 4096 24578 0 0 0 17 1 0 0
/proc/31526/statm: 4635 279 244 17 0 2626 0

[startup+0.10292 s]
/proc/loadavg: 0.09 0.52 1.24 5/81 31527
/proc/meminfo: memFree=1636048/2055920 swapFree=4192812/4192956
[pid=31526] ppid=31524 vsize=3620 CPUtime=0.09
/proc/31526/stat : 31526 (VALCSP) R 31524 31526 30790 0 -1 4194304 644 0 0 0 9 0 0 0 18 0 1 0 158043691 3706880 622 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530216 0 0 4096 0 0 0 0 17 0 0 0
/proc/31526/statm: 905 622 64 8 0 577 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3620

[startup+0.514973 s]
/proc/loadavg: 0.09 0.52 1.24 5/81 31527
/proc/meminfo: memFree=1636048/2055920 swapFree=4192812/4192956
[pid=31526] ppid=31524 vsize=12200 CPUtime=0.49
/proc/31526/stat : 31526 (VALCSP) R 31524 31526 30790 0 -1 4194304 2787 0 0 0 49 0 0 0 22 0 1 0 158043691 12492800 2765 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530307 0 0 4096 0 0 0 0 17 0 0 0
/proc/31526/statm: 3050 2765 64 8 0 2722 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 12200

[startup+1.34008 s]
/proc/loadavg: 0.09 0.52 1.24 3/81 31527
/proc/meminfo: memFree=1584144/2055920 swapFree=4192812/4192956
[pid=31526] ppid=31524 vsize=29228 CPUtime=1.31
/proc/31526/stat : 31526 (VALCSP) R 31524 31526 30790 0 -1 4194304 7053 0 0 0 129 2 0 0 25 0 1 0 158043691 29929472 7031 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530352 0 0 4096 0 0 0 0 17 0 0 0
/proc/31526/statm: 7307 7031 64 8 0 6979 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 29228

[startup+2.97629 s]
/proc/loadavg: 0.09 0.52 1.24 3/81 31527
/proc/meminfo: memFree=1538192/2055920 swapFree=4192812/4192956
[pid=31526] ppid=31524 vsize=62972 CPUtime=2.94
/proc/31526/stat : 31526 (VALCSP) R 31524 31526 30790 0 -1 4194304 15495 0 0 0 288 6 0 0 25 0 1 0 158043691 64483328 15473 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 0 0 0
/proc/31526/statm: 15743 15473 64 8 0 15415 0
Current children cumulated CPU time (s) 2.94
Current children cumulated vsize (KiB) 62972

Child status: 0
Real time (s): 4.4933
CPU time (s): 4.45032
CPU user time (s): 4.35034
CPU system time (s): 0.099984
CPU usage (%): 99.0436
Max. virtual memory (cumulated for all children) (KiB): 86060

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.35034
system time used= 0.099984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 21302
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= 110

runsolver used 0.005999 s user time and 0.015997 s system time

The end

Launcher Data (download as text)

Begin job on node40 on Sat Jan  6 15:14:01 UTC 2007


IDJOB= 191966
IDBENCH= 3082
FILE ID= node40/191966-1168096436

PBS_JOBID= 3476742

Free space on /tmp= 66543 MiB

BENCH NAME= HOME/pub/bench/CPAI06/queens/queens-80.xml
COMMAND LINE= /tmp/evaluation/191966-1168096436/VALCSP /tmp/evaluation/191966-1168096436/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node40/watcher-191966-1168096436 -o ROOT/results/node40/solver-191966-1168096436 -C 1800 -M 900  /tmp/evaluation/191966-1168096436/VALCSP /tmp/evaluation/191966-1168096436/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  90faeea2a2a9a8064660169022a4eca9

RANDOM SEED= 418531302

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		: 3000.239
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	: 5914.62
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		: 3000.239
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:       1677936 kB
Buffers:         26300 kB
Cached:         260456 kB
SwapCached:          0 kB
Active:         103372 kB
Inactive:       204156 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1677936 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4328 kB
Writeback:           0 kB
Mapped:          31528 kB
Slab:            56000 kB
Committed_AS:  3024080 kB
PageTables:       1756 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= 66543 MiB



End job on node40 on Sat Jan  6 15:14:10 UTC 2007