Trace number 192007

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
BPrologCSPSolver70a 2006-12-13SAT 8.07877 8.0846

General information on the benchmark

Namequeens/
queens-200.xml
MD5SUMbc9638d33bc2eb3542de683de70ee98a
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 benchmark2.26565
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables200
Number of constraints19900
Maximum constraint arity2
Maximum domain size200
Number of constraints which are defined in extension0
Number of constraints which are defined in intension19900
Global constraints used (with number of constraints)

Solver Data (download as text)

8.07	
8.07	Time: 8022
8.08	
c 
c 
c 
c solution file
c 
c 

SAT
1 3 5 93 103 4 113 7 112 106 82 75 6 67 69 78 8 100 109 76 96 115 9 66 86 73 79 97 63 10 74 80 120 64 101 114 77 11 62 107 98 71 108 154 81 87 12 145 148 118 153 185 125 92 104 51 13 83 72 43 94 99 175 172 166 117 24 14 95 174 171 188 49 70 44 47 151 189 167 15 68 173 138 157 180 48 179 147 169 40 65 110 16 122 59 177 102 183 53 42 105 123 88 128 182 116 17 178 124 186 197 191 2 198 85 176 181 52 158 127 61 18 126 91 37 184 90 134 111 39 119 121 130 89 129 144 156 19 155 190 60 162 84 23 137 26 58 55 195 27 168 163 54 199 20 165 132 170 131 28 196 193 50 25 187 143 194 200 41 136 38 150 21 164 159 135 31 192 160 32 30 161 141 152 35 146 139 149 142 133 33 22 140 45 34 56 29 36 46 57 
c 
c 
c 
c conversion script
c 
c 

converting(/tmp/evaluation/192007-1168096492/unknown)

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/node21/watcher-192007-1168096492 -o ROOT/results/node21/solver-192007-1168096492 -C 1800 -M 900 /tmp/evaluation/192007-1168096492/Complete/Ordinary/solver /tmp/evaluation/192007-1168096492/unknown 1800 

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: 0.31 0.50 1.20 4/81 25397
/proc/meminfo: memFree=1788440/2055920 swapFree=4156304/4192956
[pid=25396] ppid=25394 vsize=53472 CPUtime=0
/proc/25396/stat : 25396 (bprolog) R 25394 25396 25244 0 -1 4194304 483 0 0 0 0 0 0 0 18 0 1 0 158046586 54755328 203 18446744073709551615 134512640 134884608 4294956576 18446744073709551615 134550268 0 0 4096 2 0 0 0 17 1 0 0
/proc/25396/statm: 13368 203 123 90 0 12906 0

[startup+0.106999 s]
/proc/loadavg: 0.31 0.50 1.20 4/81 25397
/proc/meminfo: memFree=1788440/2055920 swapFree=4156304/4192956
[pid=25396] ppid=25394 vsize=53824 CPUtime=0.1
/proc/25396/stat : 25396 (bprolog) R 25394 25396 25244 0 -1 4194304 2503 0 0 0 9 1 0 0 18 0 1 0 158046586 55115776 2219 18446744073709551615 134512640 134884608 4294956576 18446744073709551615 134608075 0 0 4096 2 0 0 0 17 1 0 0
/proc/25396/statm: 13456 2220 158 90 0 12994 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 53824

[startup+0.515075 s]
/proc/loadavg: 0.31 0.50 1.20 4/81 25397
/proc/meminfo: memFree=1788440/2055920 swapFree=4156304/4192956
[pid=25396] ppid=25394 vsize=53824 CPUtime=0.5
/proc/25396/stat : 25396 (bprolog) R 25394 25396 25244 0 -1 4194304 6139 0 0 0 48 2 0 0 22 0 1 0 158046586 55115776 5855 18446744073709551615 134512640 134884608 4294956576 18446744073709551615 134577355 0 0 4096 2 0 0 0 17 1 0 0
/proc/25396/statm: 13456 5855 158 90 0 12994 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 53824

[startup+1.33623 s]
/proc/loadavg: 0.31 0.50 1.20 2/82 25398
/proc/meminfo: memFree=1757584/2055920 swapFree=4156304/4192956
[pid=25396] ppid=25394 vsize=81056 CPUtime=1.32
/proc/25396/stat : 25396 (bprolog) R 25394 25396 25244 0 -1 4194304 8124 0 0 0 129 3 0 0 25 0 2 0 158046586 83001344 7837 18446744073709551615 134512640 134884608 4294956576 18446744073709551615 134750274 0 0 4096 2 18446744073709551615 0 0 17 1 0 0
/proc/25396/statm: 20264 7837 167 90 0 19802 0
[pid=25396/tid=25398] ppid=25394 vsize=81056 CPUtime=0
/proc/25396/task/25398/stat : 25398 (bprolog) S 25394 25396 25244 0 -1 4194368 2 0 0 0 0 0 0 0 25 0 2 0 158046671 83001344 7837 18446744073709551615 134512640 134884608 4294956576 18446744073709551615 4294960144 0 0 4096 2 0 0 0 -1 0 0 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 81056

[startup+2.97754 s]
/proc/loadavg: 0.37 0.50 1.20 2/82 25398
/proc/meminfo: memFree=1757584/2055920 swapFree=4156304/4192956
[pid=25396] ppid=25394 vsize=81056 CPUtime=2.96
/proc/25396/stat : 25396 (bprolog) R 25394 25396 25244 0 -1 4194304 8124 0 0 0 293 3 0 0 25 0 2 0 158046586 83001344 7837 18446744073709551615 134512640 134884608 4294956576 18446744073709551615 134663828 0 0 4096 2 18446744073709551615 0 0 17 1 0 0
/proc/25396/statm: 20264 7837 167 90 0 19802 0
[pid=25396/tid=25398] ppid=25394 vsize=81056 CPUtime=0
/proc/25396/task/25398/stat : 25398 (bprolog) S 25394 25396 25244 0 -1 4194368 2 0 0 0 0 0 0 0 25 0 2 0 158046671 83001344 7837 18446744073709551615 134512640 134884608 4294956576 18446744073709551615 4294960144 0 0 4096 2 0 0 0 -1 0 0 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 81056

[startup+6.25416 s]
/proc/loadavg: 0.37 0.50 1.20 2/82 25398
/proc/meminfo: memFree=1757584/2055920 swapFree=4156304/4192956
[pid=25396] ppid=25394 vsize=81056 CPUtime=6.24
/proc/25396/stat : 25396 (bprolog) R 25394 25396 25244 0 -1 4194304 8124 0 0 0 621 3 0 0 25 0 2 0 158046586 83001344 7837 18446744073709551615 134512640 134884608 4294956576 18446744073709551615 134750228 0 0 4096 2 18446744073709551615 0 0 17 1 0 0
/proc/25396/statm: 20264 7837 167 90 0 19802 0
[pid=25396/tid=25398] ppid=25394 vsize=81056 CPUtime=0
/proc/25396/task/25398/stat : 25398 (bprolog) S 25394 25396 25244 0 -1 4194368 2 0 0 0 0 0 0 0 25 0 2 0 158046671 83001344 7837 18446744073709551615 134512640 134884608 4294956576 18446744073709551615 4294960144 0 0 4096 2 0 0 0 -1 0 0 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 81056

Child status: 0
Real time (s): 8.0846
CPU time (s): 8.07877
CPU user time (s): 8.03478
CPU system time (s): 0.043993
CPU usage (%): 99.9279
Max. virtual memory (cumulated for all children) (KiB): 81056

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.03478
system time used= 0.043993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8135
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= 9
involuntary context switches= 170

runsolver used 0.010998 s user time and 0.025996 s system time

The end

Launcher Data (download as text)

Begin job on node21 on Sat Jan  6 15:14:56 UTC 2007


IDJOB= 192007
IDBENCH= 3085
FILE ID= node21/192007-1168096492

PBS_JOBID= 3476761

Free space on /tmp= 66544 MiB

BENCH NAME= HOME/pub/bench/CPAI06/queens/queens-200.xml
COMMAND LINE= /tmp/evaluation/192007-1168096492/Complete/Ordinary/solver /tmp/evaluation/192007-1168096492/unknown 1800
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node21/convwatcher-192007-1168096492 -o ROOT/results/node21/conversion-192007-1168096492 -C 600 -M 900 /tmp/evaluation/192007-1168096492/Complete/Ordinary/conversion /tmp/evaluation/192007-1168096492/unknown
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node21/watcher-192007-1168096492 -o ROOT/results/node21/solver-192007-1168096492 -C 1800 -M 900  /tmp/evaluation/192007-1168096492/Complete/Ordinary/solver /tmp/evaluation/192007-1168096492/unknown 1800

META MD5SUM SOLVER= b53ab06f245aa5e62684a7a0a4388ade
MD5SUM BENCH=  bc9638d33bc2eb3542de683de70ee98a

RANDOM SEED= 879758982

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		: 3000.261
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		: 3000.261
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:       1788856 kB
Buffers:         16276 kB
Cached:         158104 kB
SwapCached:       1264 kB
Active:          76788 kB
Inactive:       125036 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1788856 kB
SwapTotal:     4192956 kB
SwapFree:      4156304 kB
Dirty:            6188 kB
Writeback:           0 kB
Mapped:          37112 kB
Slab:            50496 kB
Committed_AS:  2999640 kB
PageTables:       1988 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 node21 on Sat Jan  6 15:15:33 UTC 2007