Trace number 275234

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
AbsconMax 109 EPFCOPTIMUM 0.922859 0.9737

General information on the benchmark

NamequeensKnights/
queensKnights-10-5-add.xml
MD5SUM4e0c486a909311b63b83c4f87ae0d156
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkMOPT
Best Number of satisfied constraints54
Best CPU time to get the best result obtained on this benchmark0.922859
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables15
Number of constraints55
Maximum constraint arity2
Maximum domain size100
Number of constraints which are defined in extension0
Number of constraints which are defined in intension55
Global constraints used (with number of constraints)

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

Solver Data (download as text)

0.31	   
0.31	Abscon 109 (November, 2006)
0.31	   
0.31	   configuration
0.31	     name=epfc.xml
0.34	   
0.34	   instance
0.34	     name=/tmp/evaluation/275234-1169218850/unknown.xml
0.37	   
0.37	   domains being loaded...
0.38	   
0.38	   variables being loaded...
0.41	     nbVariables=15  nbDomainTypes=2  minDomainSize=10  maxDomainSize=100
0.41	       =>  wckTime=0.097  cpuTime=0.1  mem=6M887
0.41	   
0.41	   predicates being loaded...
0.42	   
0.42	   constraints being loaded...
0.53	     nbConstraints=55  nbConvertedConstraints=55  nbConvertConstraintsChecks=20900  nbExtensionStructures=11
0.53	     nbSharedExtensionStructures=44  nbConflictsStructures=11  nbSharedConflictsStructures=44
0.53	     nbSharedBinaryRepresentations=319  maxDegree=9  maxArity=2
0.53	       =>  wckTime=0.219  cpuTime=0.19  mem=8M837
0.57	   
0.57	   solver LocalSearchSolver being built... 
0.61	       =>  wckTime=0.299  cpuTime=0.23  mem=5M406
0.62	
0.62	s SATISFIABLE
0.62	o 45
0.62	c 10
0.62	o 46
0.62	c 9
0.62	o 48
0.62	c 7
0.62	o 49
0.62	c 6
0.62	o 50
0.62	c 5
0.62	o 51
0.62	c 4
0.63	o 52
0.63	c 3
0.63	o 53
0.63	c 2
0.63	o 54
0.63	c 1
0.63	   
0.63	   search
0.63	     run=0  nbConstraintChecks=19482  nbAssignments=28
0.63	       =>  wckTime=0.021  cpuTime=0.01  mem=5M406
0.63	   
0.63	   global
0.63	     nbConstraintChecks=19482  nbValidityChecks=0  nbPropagations=0  nbRevisions=0  nbUselessRevisions=0
0.63	     solvingWckTime=0.018  solvingCpuTime=0.01  expiredTime=no  totalExploration=no  nbFoundSolutions=0
0.63	     globalCpuTime=0.29
0.63	       =>  wckTime=0.319  cpuTime=0.24  mem=5M406
0.63	   
0.63	   solver IterativeSystematicSolver being built... 
0.77	       =>  wckTime=0.455  cpuTime=0.35  mem=15M315
0.92	   
0.92	   preprocessing
0.92	     nbConstraintChecks=285877  nbPropagations=0  nbRevisions=0  nbUselessRevisions=0  nbRemovedValues=191
0.92	     detectedInconsistency=yes
0.92	       =>  wckTime=0.155  cpuTime=0.13  mem=15M315
0.93	   
0.93	   global
0.93	     nbConstraintChecks=285877  nbRestartNogoods=0  solvingWckTime=0.157  solvingCpuTime=0.13  expiredTime=no
0.93	     totalExploration=yes  nbFoundSolutions=0  globalCpuTime=0.53
0.93	       =>  wckTime=0.613  cpuTime=0.48  mem=15M315
0.93	
0.93	s OPTIMUM FOUND
0.93	v 5 8 2 0 3 6 9 1 4 7 76 88 69 57 55 
0.93	   
0.93	   totalWckTime=0.694  totalCpuTime=0.53

Verifier Data (download as text)

1 unsatisfied constraints, 54 satisfied constraints

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node19/watcher-275234-1169218850 -o ROOT/results/node19/solver-275234-1169218850 -C 2400 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar epfc.xml 1 XSax /tmp/evaluation/275234-1169218850/unknown.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 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: 2.00 2.00 1.95 4/86 8535
/proc/meminfo: memFree=1223296/2055920 swapFree=4171264/4192956
[pid=8534] ppid=8532 vsize=18540 CPUtime=0
/proc/8534/stat : 8534 (runsolver) R 8532 8534 7940 0 -1 4194368 17 0 0 0 0 0 0 0 18 0 1 0 270279620 18984960 279 18446744073709551615 4194304 4267372 548682068944 18446744073709551615 255236566311 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/8534/statm: 4635 279 244 17 0 2626 0

[startup+0.109782 s]
/proc/loadavg: 2.00 2.00 1.95 4/86 8535
/proc/meminfo: memFree=1223296/2055920 swapFree=4171264/4192956
[pid=8534] ppid=8532 vsize=914988 CPUtime=0.09
/proc/8534/stat : 8534 (java) R 8532 8534 7940 0 -1 0 3052 0 1 0 8 1 0 0 20 0 8 0 270279620 936947712 2798 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4155184942 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/8534/statm: 228747 2798 1447 14 0 215242 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 914988

[startup+0.521856 s]
/proc/loadavg: 2.00 2.00 1.95 4/86 8535
/proc/meminfo: memFree=1223296/2055920 swapFree=4171264/4192956
[pid=8534] ppid=8532 vsize=915468 CPUtime=0.5
/proc/8534/stat : 8534 (java) R 8532 8534 7940 0 -1 0 6506 0 1 0 45 5 0 0 19 0 8 0 270279620 937439232 6245 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4073587239 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/8534/statm: 228867 6245 2170 14 0 215337 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 915468

Child status: 0
Real time (s): 0.9737
CPU time (s): 0.922859
CPU user time (s): 0.841872
CPU system time (s): 0.080987
CPU usage (%): 94.7786
Max. virtual memory (cumulated for all children) (KiB): 915468

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.841872
system time used= 0.080987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8867
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 778
involuntary context switches= 913

runsolver used 0.003999 s user time and 0.006998 s system time

The end

Launcher Data (download as text)

Begin job on node19 on Fri Jan 19 15:00:50 UTC 2007


IDJOB= 275234
IDBENCH= 3715
IDSOLVER= 68
FILE ID= node19/275234-1169218850

PBS_JOBID= 3588903

Free space on /tmp= 66561 MiB

SOLVER NAME= AbsconMax 109 EPFC
BENCH NAME= HOME/pub/bench/CPAI06/queensKnights/queensKnights-10-5-add.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar epfc.xml 1 XSax /tmp/evaluation/275234-1169218850/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node19/watcher-275234-1169218850 -o ROOT/results/node19/solver-275234-1169218850 -C 2400 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar epfc.xml 1 XSax /tmp/evaluation/275234-1169218850/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  4e0c486a909311b63b83c4f87ae0d156

RANDOM SEED= 665548296

TIME LIMIT= 2400 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		: 3000.260
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		: 3000.260
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:       1223776 kB
Buffers:         60472 kB
Cached:         655120 kB
SwapCached:      10172 kB
Active:         308432 kB
Inactive:       445508 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1223776 kB
SwapTotal:     4192956 kB
SwapFree:      4171264 kB
Dirty:            1852 kB
Writeback:           0 kB
Mapped:          48640 kB
Slab:            62992 kB
Committed_AS:  7110108 kB
PageTables:       2328 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 node19 on Fri Jan 19 15:00:51 UTC 2007