Trace number 245857

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 2.58461 2.63044

General information on the benchmark

NamelargeQueens/
queens-300.xml
MD5SUM06a371e55f2d982d272ecf65ee2f370a
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 benchmark2.58461
SatisfiableYES
(Un)Satisfiability was proved
Number of variables300
Number of constraints44850
Maximum constraint arity2
Maximum domain size300
Number of constraints which are defined in extension0
Number of constraints which are defined in intension44850
Global constraints used (with number of constraints)

Solver Data (download as text)

2.58	
2.58	Time: 2477
2.58	
c 
c 
c 
c solution file
c 
c 

SAT
1 3 5 104 109 4 103 7 134 142 148 106 6 115 151 133 8 102 98 107 112 114 9 130 100 135 96 144 156 10 116 89 140 149 154 159 93 11 119 216 220 90 83 121 291 128 12 286 296 299 278 99 127 284 208 246 13 155 91 266 92 157 295 269 168 152 81 14 136 97 108 125 131 95 60 55 111 129 117 15 120 105 153 138 54 146 139 242 165 188 277 173 16 62 298 289 231 250 56 263 282 285 65 67 294 241 17 265 297 252 267 29 279 123 63 264 287 259 141 61 249 18 256 79 271 64 143 283 280 69 84 262 300 254 234 238 27 19 150 72 145 68 160 32 78 251 258 172 261 239 164 170 158 28 20 132 73 147 227 224 113 137 110 237 185 169 233 240 257 253 122 30 21 245 171 163 218 162 228 31 175 190 248 219 86 101 177 94 118 161 33 22 167 124 225 87 179 126 166 34 229 180 215 247 193 66 184 205 35 236 203 23 232 243 70 223 212 40 244 235 276 268 273 88 197 71 288 290 292 272 275 36 24 293 82 281 270 274 51 176 202 37 174 77 211 189 230 50 255 260 201 49 213 38 25 226 221 195 47 181 53 187 222 204 210 178 209 182 196 214 52 192 186 198 183 43 39 26 80 199 46 191 217 48 207 85 194 206 200 41 76 74 59 2 42 45 57 44 58 75 
c 
c 
c 
c conversion script
c 
c 

converting(/tmp/evaluation/245857-1168386336/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/node11/watcher-245857-1168386336 -o ROOT/results/node11/solver-245857-1168386336 -C 1800 -M 900 /tmp/evaluation/245857-1168386336/Complete/Ordinary/solver /tmp/evaluation/245857-1168386336/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: 0.78 0.48 0.69 5/94 12743
/proc/meminfo: memFree=1285800/2055920 swapFree=4192812/4192956
[pid=12742] ppid=12740 vsize=53472 CPUtime=0
/proc/12742/stat : 12742 (bprolog) R 12740 12742 12427 0 -1 4194304 483 0 0 0 0 0 0 0 18 0 1 0 187031494 54755328 202 18446744073709551615 134512640 134884608 4294956576 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 1 0 0
/proc/12742/statm: 13368 203 123 90 0 12906 0

[startup+0.103172 s]
/proc/loadavg: 0.78 0.48 0.69 5/94 12743
/proc/meminfo: memFree=1285800/2055920 swapFree=4192812/4192956
[pid=12742] ppid=12740 vsize=53824 CPUtime=0.09
/proc/12742/stat : 12742 (bprolog) R 12740 12742 12427 0 -1 4194304 2238 0 0 0 8 1 0 0 18 0 1 0 187031494 55115776 1954 18446744073709551615 134512640 134884608 4294956576 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 1 0 0
/proc/12742/statm: 13456 1956 158 90 0 12994 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 53824

[startup+0.511256 s]
/proc/loadavg: 0.78 0.48 0.69 5/94 12743
/proc/meminfo: memFree=1285800/2055920 swapFree=4192812/4192956
[pid=12742] ppid=12740 vsize=82544 CPUtime=0.49
/proc/12742/stat : 12742 (bprolog) R 12740 12742 12427 0 -1 4194304 10002 0 0 0 45 4 0 0 22 0 1 0 187031494 84525056 9719 18446744073709551615 134512640 134884608 4294956576 18446744073709551615 134853774 0 0 4096 2 0 0 0 17 1 0 0
/proc/12742/statm: 20636 9725 159 90 0 20174 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 82544

[startup+1.33242 s]
/proc/loadavg: 0.78 0.48 0.69 3/94 12743
/proc/meminfo: memFree=1201704/2055920 swapFree=4192812/4192956
[pid=12742] ppid=12740 vsize=82544 CPUtime=1.31
/proc/12742/stat : 12742 (bprolog) R 12740 12742 12427 0 -1 4194304 16292 0 0 0 124 7 0 0 25 0 1 0 187031494 84525056 16008 18446744073709551615 134512640 134884608 4294956576 18446744073709551615 134552076 0 0 4096 2 0 0 0 17 1 0 0
/proc/12742/statm: 20636 16008 158 90 0 20174 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 82544

Child status: 0
Real time (s): 2.63044
CPU time (s): 2.58461
CPU user time (s): 2.49162
CPU system time (s): 0.092985
CPU usage (%): 98.2576
Max. virtual memory (cumulated for all children) (KiB): 84276

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.49162
system time used= 0.092985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 17439
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= 88

runsolver used 0.002999 s user time and 0.012998 s system time

The end

Launcher Data (download as text)

Begin job on node11 on Tue Jan  9 23:45:37 UTC 2007


IDJOB= 245857
IDBENCH= 10309
FILE ID= node11/245857-1168386336

PBS_JOBID= 3522685

Free space on /tmp= 66546 MiB

BENCH NAME= HOME/pub/bench/CPAI06/largeQueens/queens-300.xml
COMMAND LINE= /tmp/evaluation/245857-1168386336/Complete/Ordinary/solver /tmp/evaluation/245857-1168386336/unknown 1800
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node11/convwatcher-245857-1168386336 -o ROOT/results/node11/conversion-245857-1168386336 -C 600 -M 900 /tmp/evaluation/245857-1168386336/Complete/Ordinary/conversion /tmp/evaluation/245857-1168386336/unknown
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node11/watcher-245857-1168386336 -o ROOT/results/node11/solver-245857-1168386336 -C 1800 -M 900  /tmp/evaluation/245857-1168386336/Complete/Ordinary/solver /tmp/evaluation/245857-1168386336/unknown 1800

META MD5SUM SOLVER= b53ab06f245aa5e62684a7a0a4388ade
MD5SUM BENCH=  06a371e55f2d982d272ecf65ee2f370a

RANDOM SEED= 119429199

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	: 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		: 3000.261
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:       1286344 kB
Buffers:         60696 kB
Cached:         261760 kB
SwapCached:          0 kB
Active:         538160 kB
Inactive:       178004 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1286344 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:           16820 kB
Writeback:           0 kB
Mapped:         420560 kB
Slab:            37284 kB
Committed_AS:  7041320 kB
PageTables:       3104 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= 66537 MiB



End job on node11 on Tue Jan  9 23:46:07 UTC 2007