Trace number 267821

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 11.6972 11.7132

DiagnosticValue
CHECKS20342800
NODES108

General information on the benchmark

Namequeens/
queens-100.xml
MD5SUM2298692c2d9aa0ddcbd68522b3128865
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 benchmark0.215966
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables100
Number of constraints4950
Maximum constraint arity2
Maximum domain size100
Number of constraints which are defined in extension0
Number of constraints which are defined in intension4950
Global constraints used (with number of constraints)

Solver Data (download as text)

11.67	s SATISFIABLE
11.67	v 1 3 5 57 59 4 64 7 58 71 81 60 6 91 82 90 8 83 77 65 73 26 9 45 37 63 66 62 44 10 48 54 43 69 42 47 18 11 72 68 50 56 61 36 33 17 12 51 100 93 97 88 35 84 78 19 13 99 67 76 92 75 87 96 94 85 20 14 95 32 98 55 40 80 49 52 46 53 21 15 41 2 27 34 22 70 74 29 25 30 38 86 16 79 24 39 28 23 31 89 
11.67	d CHECKS 2.03428e+07
11.67	d NODES 108

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/node2/watcher-267821-1168977726 -o ROOT/results/node2/solver-267821-1168977726 -C 1800 -M 900 /tmp/evaluation/267821-1168977726/VALCSP /tmp/evaluation/267821-1168977726/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: 0.00 0.00 0.00 2/87 8068
/proc/meminfo: memFree=1568792/2055920 swapFree=4180552/4192956
[pid=8067] ppid=8065 vsize=1932 CPUtime=0
/proc/8067/stat : 8067 (VALCSP) R 8065 8067 7798 0 -1 4194304 208 0 0 0 0 0 0 0 18 0 1 0 246168237 1978368 186 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529359 0 0 4096 0 0 0 0 17 1 0 0
/proc/8067/statm: 483 186 64 8 0 155 0

[startup+0.10199 s]
/proc/loadavg: 0.00 0.00 0.00 2/87 8068
/proc/meminfo: memFree=1568792/2055920 swapFree=4180552/4192956
[pid=8067] ppid=8065 vsize=3648 CPUtime=0.09
/proc/8067/stat : 8067 (VALCSP) R 8065 8067 7798 0 -1 4194304 649 0 0 0 9 0 0 0 18 0 1 0 246168237 3735552 627 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134528612 0 0 4096 0 0 0 0 17 1 0 0
/proc/8067/statm: 945 632 64 8 0 617 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3648

[startup+0.510063 s]
/proc/loadavg: 0.00 0.00 0.00 2/87 8068
/proc/meminfo: memFree=1568792/2055920 swapFree=4180552/4192956
[pid=8067] ppid=8065 vsize=11304 CPUtime=0.5
/proc/8067/stat : 8067 (VALCSP) R 8065 8067 7798 0 -1 4194304 2555 0 0 0 50 0 0 0 21 0 1 0 246168237 11575296 2533 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/8067/statm: 2826 2533 64 8 0 2498 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 11304

[startup+1.33122 s]
/proc/loadavg: 0.00 0.00 0.00 2/87 8068
/proc/meminfo: memFree=1547480/2055920 swapFree=4180552/4192956
[pid=8067] ppid=8065 vsize=26748 CPUtime=1.32
/proc/8067/stat : 8067 (VALCSP) R 8065 8067 7798 0 -1 4194304 6399 0 0 0 130 2 0 0 25 0 1 0 246168237 27389952 6377 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 10970747 0 0 4096 0 0 0 0 17 1 0 0
/proc/8067/statm: 6687 6377 64 8 0 6359 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 26748

[startup+2.96851 s]
/proc/loadavg: 0.00 0.00 0.00 2/87 8070
/proc/meminfo: memFree=1526360/2055920 swapFree=4180552/4192956
[pid=8067] ppid=8065 vsize=57512 CPUtime=2.95
/proc/8067/stat : 8067 (VALCSP) R 8065 8067 7798 0 -1 4194304 14108 0 0 0 290 5 0 0 25 0 1 0 246168237 58892288 14086 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134528694 0 0 4096 0 0 0 0 17 1 0 0
/proc/8067/statm: 14378 14086 64 8 0 14050 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 57512

[startup+6.24912 s]
/proc/loadavg: 0.08 0.02 0.01 2/87 8072
/proc/meminfo: memFree=1461912/2055920 swapFree=4180552/4192956
[pid=8067] ppid=8065 vsize=119828 CPUtime=6.23
/proc/8067/stat : 8067 (VALCSP) R 8065 8067 7798 0 -1 4194304 29683 0 0 0 611 12 0 0 25 0 1 0 246168237 122703872 29661 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/8067/statm: 29957 29661 64 8 0 29629 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 119828

Child status: 0
Real time (s): 11.7132
CPU time (s): 11.6972
CPU user time (s): 11.4353
CPU system time (s): 0.26196
CPU usage (%): 99.8639
Max. virtual memory (cumulated for all children) (KiB): 204844

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 11.4353
system time used= 0.26196
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 50985
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= 51

runsolver used 0.011998 s user time and 0.040993 s system time

The end

Launcher Data (download as text)

Begin job on node2 on Tue Jan 16 20:02:06 UTC 2007


IDJOB= 267821
IDBENCH= 3094
IDSOLVER= 90
FILE ID= node2/267821-1168977726

PBS_JOBID= 3565946

Free space on /tmp= 66564 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/queens/queens-100.xml
COMMAND LINE= /tmp/evaluation/267821-1168977726/VALCSP /tmp/evaluation/267821-1168977726/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node2/watcher-267821-1168977726 -o ROOT/results/node2/solver-267821-1168977726 -C 1800 -M 900  /tmp/evaluation/267821-1168977726/VALCSP /tmp/evaluation/267821-1168977726/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  2298692c2d9aa0ddcbd68522b3128865

RANDOM SEED= 683341436

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		: 3000.259
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		: 3000.259
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:       1569272 kB
Buffers:         60556 kB
Cached:         291760 kB
SwapCached:        604 kB
Active:         237340 kB
Inactive:       164984 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1569272 kB
SwapTotal:     4192956 kB
SwapFree:      4180552 kB
Dirty:             780 kB
Writeback:           0 kB
Mapped:          61656 kB
Slab:            68868 kB
Committed_AS:  6388240 kB
PageTables:       2460 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= 66564 MiB



End job on node2 on Tue Jan 16 20:02:39 UTC 2007