Trace number 191993

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
Abscon 109 ESACSAT 0.654899 0.708849

DiagnosticValue
CHECKS682
NODES0

General information on the benchmark

Namequeens/
queens-8.xml
MD5SUM056ee6d877376d3d3549cc2163accbe7
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 benchmark0.013997
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables8
Number of constraints28
Maximum constraint arity2
Maximum domain size8
Number of constraints which are defined in extension0
Number of constraints which are defined in intension28
Global constraints used (with number of constraints)

Solver Data (download as text)

0.29	   
0.29	Abscon 109 (November, 2006)
0.29	   
0.29	   configuration
0.29	     name=esac.xml
0.32	   
0.32	   instance
0.32	     name=/tmp/evaluation/191993-1168096472/unknown.xml
0.35	   
0.35	   domains being loaded...
0.36	   
0.36	   variables being loaded...
0.38	     nbVariables=8  nbDomainTypes=1  minDomainSize=8  maxDomainSize=8
0.39	       =>  wckTime=0.091  cpuTime=0.08  mem=6M951
0.39	   
0.39	   predicates being loaded...
0.39	   
0.39	   constraints being loaded...
0.45	     nbConstraints=28  nbConvertedConstraints=28  nbConvertConstraintsChecks=448  nbExtensionStructures=7
0.45	     nbSharedExtensionStructures=21  nbConflictsStructures=7  nbSharedConflictsStructures=21
0.45	     nbSharedBinaryRepresentations=73  maxDegree=7  maxArity=2
0.45	       =>  wckTime=0.151  cpuTime=0.14  mem=7M943
0.48	   
0.48	   solver IterativeSystematicSolver being built... 
0.63	       =>  wckTime=0.341  cpuTime=0.28  mem=13M269
0.65	   
0.65	   preprocessing
0.65	     nbConstraintChecks=682  nbPropagations=102  nbRevisions=165  nbUselessRevisions=65  nbSingletonTests=18
0.65	     nbEffectiveSingletonTests=0  nbESACBranches=4  nbRemovedValues=0  detectedInconsistency=no
0.65	       =>  wckTime=0.0090  cpuTime=0.0  mem=13M269
0.65	   
0.65	   global
0.65	     nbConstraintChecks=682  nbPropagations=102  nbRevisions=165  nbUselessRevisions=65  nbRestartNogoods=0
0.65	     solvingWckTime=0.01  solvingCpuTime=0.0  expiredTime=no  totalExploration=no  nbFoundSolutions=1
0.65	     globalCpuTime=0.33
0.65	       =>  wckTime=0.352  cpuTime=0.28  mem=13M269
0.65	   
0.65	s SATISFIABLE
0.65	v 4 8 1 5 7 2 6 3 
0.65	d NODES 0
0.65	d CHECKS 682
0.65	   
0.65	   totalWckTime=0.427  totalCpuTime=0.34

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/node44/watcher-191993-1168096472 -o ROOT/results/node44/solver-191993-1168096472 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/191993-1168096472/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: 0.15 0.24 0.64 3/68 14033
/proc/meminfo: memFree=1595320/2055920 swapFree=4192812/4192956
[pid=14032] ppid=14030 vsize=172 CPUtime=0
/proc/14032/stat : 14032 (java) R 14030 14032 13089 0 -1 0 217 0 0 0 0 0 0 0 18 0 1 0 158047310 176128 24 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 11280683 0 0 4096 0 0 0 0 17 1 0 0
/proc/14032/statm: 43 24 18 14 0 3 0

[startup+0.107403 s]
/proc/loadavg: 0.15 0.24 0.64 3/68 14033
/proc/meminfo: memFree=1595320/2055920 swapFree=4192812/4192956
[pid=14032] ppid=14030 vsize=914988 CPUtime=0.09
/proc/14032/stat : 14032 (java) R 14030 14032 13089 0 -1 0 3101 0 1 0 7 2 0 0 16 0 8 0 158047310 936947712 2847 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/14032/statm: 228747 2847 1462 14 0 215242 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 914988

[startup+0.519442 s]
/proc/loadavg: 0.15 0.24 0.64 3/68 14033
/proc/meminfo: memFree=1595320/2055920 swapFree=4192812/4192956
[pid=14032] ppid=14030 vsize=915460 CPUtime=0.5
/proc/14032/stat : 14032 (java) R 14030 14032 13089 0 -1 0 6767 0 1 0 45 5 0 0 16 0 8 0 158047310 937431040 6505 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4072923338 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/14032/statm: 228865 6505 2402 14 0 215335 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 915460

Child status: 0
Real time (s): 0.708849
CPU time (s): 0.654899
CPU user time (s): 0.574912
CPU system time (s): 0.079987
CPU usage (%): 92.3891
Max. virtual memory (cumulated for all children) (KiB): 915460

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.574912
system time used= 0.079987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8339
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= 432
involuntary context switches= 152

runsolver used 0.002999 s user time and 0.006998 s system time

The end

Launcher Data (download as text)

Begin job on node44 on Sat Jan  6 15:14:36 UTC 2007


IDJOB= 191993
IDBENCH= 3084
FILE ID= node44/191993-1168096472

PBS_JOBID= 3476746

Free space on /tmp= 66536 MiB

BENCH NAME= HOME/pub/bench/CPAI06/queens/queens-8.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/191993-1168096472/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node44/watcher-191993-1168096472 -o ROOT/results/node44/solver-191993-1168096472 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/191993-1168096472/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  056ee6d877376d3d3549cc2163accbe7

RANDOM SEED= 18311492

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		: 3000.213
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		: 3000.213
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:       1595920 kB
Buffers:         26820 kB
Cached:         344596 kB
SwapCached:          0 kB
Active:          93588 kB
Inactive:       297944 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1595920 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4768 kB
Writeback:           0 kB
Mapped:          30336 kB
Slab:            54196 kB
Committed_AS:  2961272 kB
PageTables:       1596 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= 66536 MiB



End job on node44 on Sat Jan  6 15:14:51 UTC 2007