Trace number 1093937

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
choco2_impwdeg 2008-06-26SAT 0.801877 0.839009

DiagnosticValue
ASSIGNMENTS9

General information on the benchmark

Namecsp/queens/
normalized-queens-8.xml
MD5SUM041d8a5e473344d6f48f9e7e3721a8ce
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 benchmark0.008998
Satisfiable
(Un)Satisfiability was proved
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)

0.78/0.80	s SATISFIABLE
0.78/0.80	v 4 2 5 8 6 1 3 7 
0.78/0.80	d ASSIGNMENTS 9
0.78/0.80	c SAT 716 TIME      9 NDS    171 PARSTIME      302 BUILDPB       243 RES       true RESTART       2 HEURISTIC

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.5 (c) roussel@cril.univ-artois.fr

command line: /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1093937-1215278593/watcher-1093937-1215278593 -o /tmp/evaluation-result-1093937-1215278593/solver-1093937-1215278593 -C 1800 -W 2200 -M 900 --output-limit 1,15 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar choco2impWdeg.jar HOME/instance-1093937-1215278593.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2200 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.98 2.00 2.00 4/85 20669
/proc/meminfo: memFree=1665856/2055920 swapFree=4180672/4192956
[pid=20669] ppid=20667 vsize=18572 CPUtime=0
/proc/20669/stat : 20669 (runsolver) R 20667 20669 18641 0 -1 4194368 16 0 0 0 0 0 0 0 20 0 1 0 262333134 19017728 292 996147200 4194304 4296836 548682068400 18446744073709551615 224264776999 0 2147483391 4096 24578 0 0 0 17 0 0 0
/proc/20669/statm: 4643 292 257 25 0 2626 0

[startup+0.0879571 s]
/proc/loadavg: 1.98 2.00 2.00 4/85 20669
/proc/meminfo: memFree=1665856/2055920 swapFree=4180672/4192956
[pid=20669] ppid=20667 vsize=866544 CPUtime=0.07
/proc/20669/stat : 20669 (java) S 20667 20669 18641 0 -1 0 3711 0 1 0 5 2 0 0 18 0 9 0 262333134 887341056 3184 996147200 134512640 134550740 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/20669/statm: 216636 3184 1720 9 0 211108 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 866544

[startup+0.101957 s]
/proc/loadavg: 1.98 2.00 2.00 4/85 20669
/proc/meminfo: memFree=1665856/2055920 swapFree=4180672/4192956
[pid=20669] ppid=20667 vsize=866544 CPUtime=0.08
/proc/20669/stat : 20669 (java) S 20667 20669 18641 0 -1 0 3868 0 1 0 6 2 0 0 18 0 9 0 262333134 887341056 3329 996147200 134512640 134550740 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/20669/statm: 216636 3329 1777 9 0 211108 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 866544

[startup+0.301979 s]
/proc/loadavg: 1.98 2.00 2.00 4/85 20669
/proc/meminfo: memFree=1665856/2055920 swapFree=4180672/4192956
[pid=20669] ppid=20667 vsize=866896 CPUtime=0.28
/proc/20669/stat : 20669 (java) S 20667 20669 18641 0 -1 0 5329 0 1 0 25 3 0 0 18 0 9 0 262333134 887701504 4752 996147200 134512640 134550740 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/20669/statm: 216724 4752 1931 9 0 211196 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 866896

[startup+0.702021 s]
/proc/loadavg: 1.98 2.00 2.00 4/85 20669
/proc/meminfo: memFree=1665856/2055920 swapFree=4180672/4192956
[pid=20669] ppid=20667 vsize=867004 CPUtime=0.68
/proc/20669/stat : 20669 (java) S 20667 20669 18641 0 -1 0 7535 0 1 0 63 5 0 0 18 0 9 0 262333134 887812096 6926 996147200 134512640 134550740 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/20669/statm: 216751 6926 1979 9 0 211223 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 867004

Solver just ended. Dumping a history of the last processes samples

[startup+0.801032 s]
/proc/loadavg: 1.98 2.00 2.00 4/85 20669
/proc/meminfo: memFree=1665856/2055920 swapFree=4180672/4192956
[pid=20669] ppid=20667 vsize=867004 CPUtime=0.78
/proc/20669/stat : 20669 (java) S 20667 20669 18641 0 -1 0 7820 0 1 0 73 5 0 0 18 0 9 0 262333134 887812096 7211 996147200 134512640 134550740 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/20669/statm: 216751 7211 1980 9 0 211223 0
Current children cumulated CPU time (s) 0.78
Current children cumulated vsize (KiB) 867004

Child status: 0
Real time (s): 0.839009
CPU time (s): 0.801877
CPU user time (s): 0.741887
CPU system time (s): 0.05999
CPU usage (%): 95.5743
Max. virtual memory (cumulated for all children) (KiB): 867004

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.741887
system time used= 0.05999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7846
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= 1056
involuntary context switches= 1020

runsolver used 0.004999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node82 at 2008-07-05 19:23:13
IDJOB=1093937
IDBENCH=58736
IDSOLVER=348
FILE ID=node82/1093937-1215278593
PBS_JOBID= 7882230
Free space on /tmp= 66468 MiB

SOLVER NAME= choco2_impwdeg 2008-06-26
BENCH NAME= CPAI08/csp/queens/normalized-queens-8.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar choco2impWdeg.jar BENCHNAME 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1093937-1215278593/watcher-1093937-1215278593 -o /tmp/evaluation-result-1093937-1215278593/solver-1093937-1215278593 -C 1800 -W 2200 -M 900 --output-limit 1,15  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar choco2impWdeg.jar HOME/instance-1093937-1215278593.xml 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 041d8a5e473344d6f48f9e7e3721a8ce
RANDOM SEED=202937080

node82.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1666336 kB
Buffers:         48680 kB
Cached:         251700 kB
SwapCached:       5892 kB
Active:         243972 kB
Inactive:        97068 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1666336 kB
SwapTotal:     4192956 kB
SwapFree:      4180672 kB
Dirty:            6076 kB
Writeback:           0 kB
Mapped:          57612 kB
Slab:            33592 kB
Committed_AS:   721028 kB
PageTables:       1932 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66464 MiB
End job on node82 at 2008-07-05 19:23:14