Trace number 192020

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
Tramontane 2006-12-04SAT 2.38364 2.41217

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)

0.20	c 
0.20	c Parsing xml file
0.20	c 	domains...............    0
0.20	c 	variables.............    0
0.20	c 	predicates............    0
0.20	c 	constraints........... 1.37
1.40	c Allocating memory
1.40	c 
1.40	c time limit = -1
1.40	c heuristic = dom/wdeg
1.40	c restart policy = Geometric increment
1.40	c restart base = 133
1.40	c restart factor = 1.33
1.40	c 
1.40	c Solving
1.40	c
2.38	s SATISFIABLE
2.38	v 1 3 5 108 92 4 87 7 95 88 78 75 6 71 73 76 8 90 98 70 85 105 9 77 80 94 69 199 64 10 68 200 189 194 144 109 198 11 63 106 117 195 82 196 66 72 12 188 100 91 192 74 84 79 104 51 13 86 89 43 183 81 190 187 173 182 24 14 186 180 67 177 49 62 44 47 169 155 168 15 135 118 179 175 102 48 181 191 132 40 65 193 16 164 59 170 178 83 53 42 153 197 112 119 176 96 17 111 121 166 93 157 2 146 174 154 101 52 167 97 61 18 184 158 37 172 145 139 136 39 110 99 138 163 149 142 150 19 162 137 60 114 151 23 161 26 58 55 115 27 171 185 54 141 20 107 116 103 134 28 113 156 50 25 143 124 159 123 41 130 38 140 21 122 128 165 31 127 160 32 30 152 126 147 35 133 148 129 125 120 33 22 131 45 34 56 29 36 46 57
2.38	d          SAT        18 BTS      0.95 s

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/node16/watcher-192020-1168096511 -o ROOT/results/node16/solver-192020-1168096511 -C 1800 -M 900 /tmp/evaluation/192020-1168096511/tramontane/bin/solver /tmp/evaluation/192020-1168096511/unknown.xml -res geom -f 3 -v 1 

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: 1.03 1.25 1.58 5/86 26945
/proc/meminfo: memFree=1508912/2055920 swapFree=4191880/4192956
[pid=26944] ppid=26942 vsize=540 CPUtime=0
/proc/26944/stat : 26944 (solver) R 26942 26944 26629 0 -1 4194304 41 0 0 0 0 0 0 0 19 0 1 0 158046885 552960 26 18446744073709551615 134512640 134893233 4294956640 18446744073709551615 7205668 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/26944/statm: 135 26 21 92 0 18 0

[startup+0.103722 s]
/proc/loadavg: 1.03 1.25 1.58 5/86 26945
/proc/meminfo: memFree=1508912/2055920 swapFree=4191880/4192956
[pid=26944] ppid=26942 vsize=7444 CPUtime=0.09
/proc/26944/stat : 26944 (solver) R 26942 26944 26629 0 -1 4194304 942 0 0 0 9 0 0 0 18 0 1 0 158046885 7622656 910 18446744073709551615 134512640 134893233 4294956640 18446744073709551615 4158610049 0 0 4096 0 0 0 0 17 1 0 0
/proc/26944/statm: 1861 910 706 92 0 205 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7444

[startup+0.515641 s]
/proc/loadavg: 1.03 1.25 1.58 5/86 26945
/proc/meminfo: memFree=1508912/2055920 swapFree=4191880/4192956
[pid=26944] ppid=26942 vsize=9044 CPUtime=0.5
/proc/26944/stat : 26944 (solver) R 26942 26944 26629 0 -1 4194304 1355 0 0 0 49 1 0 0 22 0 1 0 158046885 9261056 1323 18446744073709551615 134512640 134893233 4294956640 18446744073709551615 134635845 0 0 4096 0 0 0 0 17 1 0 0
/proc/26944/statm: 2261 1323 706 92 0 605 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 9044

[startup+1.33749 s]
/proc/loadavg: 1.03 1.25 1.58 3/86 26945
/proc/meminfo: memFree=1503984/2055920 swapFree=4191880/4192956
[pid=26944] ppid=26942 vsize=12424 CPUtime=1.31
/proc/26944/stat : 26944 (solver) R 26942 26944 26629 0 -1 4194304 2193 0 0 0 129 2 0 0 25 0 1 0 158046885 12722176 2128 18446744073709551615 134512640 134893233 4294956640 18446744073709551615 4158609607 0 0 4096 0 0 0 0 17 1 0 0
/proc/26944/statm: 3106 2128 706 92 0 1450 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 12424

Child status: 0
Real time (s): 2.41217
CPU time (s): 2.38364
CPU user time (s): 2.35864
CPU system time (s): 0.024996
CPU usage (%): 98.817
Max. virtual memory (cumulated for all children) (KiB): 14828

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.35864
system time used= 0.024996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2791
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= 13
involuntary context switches= 84

runsolver used 0.004999 s user time and 0.014997 s system time

The end

Launcher Data (download as text)

Begin job on node16 on Sat Jan  6 15:15:16 UTC 2007


IDJOB= 192020
IDBENCH= 3085
FILE ID= node16/192020-1168096511

PBS_JOBID= 3476489

Free space on /tmp= 66485 MiB

BENCH NAME= HOME/pub/bench/CPAI06/queens/queens-200.xml
COMMAND LINE= /tmp/evaluation/192020-1168096511/tramontane/bin/solver /tmp/evaluation/192020-1168096511/unknown.xml -res geom -f 3 -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node16/watcher-192020-1168096511 -o ROOT/results/node16/solver-192020-1168096511 -C 1800 -M 900  /tmp/evaluation/192020-1168096511/tramontane/bin/solver /tmp/evaluation/192020-1168096511/unknown.xml -res geom -f 3 -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  bc9638d33bc2eb3542de683de70ee98a

RANDOM SEED= 108378233

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		: 3000.220
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		: 3000.220
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:       1509584 kB
Buffers:         46416 kB
Cached:         296444 kB
SwapCached:        268 kB
Active:         183824 kB
Inactive:       270104 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1509584 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:            5620 kB
Writeback:           0 kB
Mapped:         132892 kB
Slab:            77068 kB
Committed_AS:  4019872 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= 66485 MiB



End job on node16 on Sat Jan  6 15:15:28 UTC 2007