Trace number 41875

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 NameAnswerObjective functionCPU timeWall clock time
PBS 4.1LOPT200 0.025995 0.03125

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/submitted-PB05/manquinho/
primes-dimacs-cnf/normalized-aim-200-6_0-yes1-2.opb
MD5SUMd83135464cb632376e759a94bebcd02c
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark200
Best CPU time to get the best result obtained on this benchmark0.023995
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 200
Optimality of the best value was proved YES
Number of variables400
Total number of constraints1400
Number of constraints which are clauses1392
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints8
Minimum length of a constraint2
Maximum length of a constraint3
Number of terms in the objective function 400
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 400
Number of bits of the sum of numbers in the objective function 9
Biggest number in a constraint 2
Number of bits of the biggest number in a constraint 2
Biggest sum of numbers in a constraint 400
Number of bits of the biggest sum of numbers9
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

Solver Data (download as text)

0.00	c PBS v4 by Bashar Al-Rawi & Fadi Aloul
0.00	c Solving ROOT/tmp/node49/41875-1149283939/instance-41875-1149283939.opb ......
0.03	c done parsing opb.
0.03	o 200
0.03	o 200
0.03	s OPTIMUM FOUND
0.03	c Total Run Time					0.009998
0.03	v -x1 -x10 -x100 -x101 x102 x103 -x104 x105 -x106 x107 -x108 -x109 -x11 x110 x111 -x112 x113 -x114 -x115 x116 x117 -x118 -x119
0.03	v x12 x120 -x121 x122 x123 -x124 -x125 x126 -x127 x128 -x129 -x13 x130 x131 -x132 x133 -x134 -x135 x136 x137 -x138 x139 x14 -x140
0.03	v x141 -x142 x143 -x144 x145 -x146 x147 -x148 -x149 -x15 x150 x151 -x152 -x153 x154 -x155 x156 -x157 x158 x159 x16 -x160 x161
0.03	v -x162 -x163 x164 x165 -x166 x167 -x168 -x169 x17 x170 -x171 x172 x173 -x174 x175 -x176 x177 -x178 -x179 -x18 x180 -x181 x182
0.03	v -x183 x184 x185 -x186 x187 -x188 x189 -x19 -x190 -x191 x192 -x193 x194 x195 -x196 x197 -x198 x199 x2 x20 -x200 -x201 x202 x203
0.03	v -x204 x205 -x206 -x207 x208 -x209 -x21 x210 x211 -x212 x213 -x214 -x215 x216 -x217 x218 x219 x22 -x220 -x221 x222 -x223 x224
0.03	v -x225 x226 -x227 x228 -x229 x23 x230 -x231 x232 x233 -x234 -x235 x236 -x237 x238 -x239 -x24 x240 -x241 x242 x243 -x244 -x245
0.03	v x246 -x247 x248 -x249 x25 x250 -x251 x252 -x253 x254 -x255 x256 -x257 x258 x259 -x26 -x260 -x261 x262 x263 -x264 -x265 x266
0.03	v x267 -x268 x269 -x27 -x270 x271 -x272 -x273 x274 x275 -x276 -x277 x278 -x279 x28 x280 -x281 x282 -x283 x284 x285 -x286 x287
0.03	v -x288 x289 -x29 -x290 -x291 x292 -x293 x294 -x295 x296 -x297 x298 x299 -x3 x30 -x300 -x301 x302 -x303 x304 -x305 x306 -x307
0.03	v x308 x309 -x31 -x310 -x311 x312 -x313 x314 -x315 x316 -x317 x318 x319 x32 -x320 -x321 x322 -x323 x324 -x325 x326 -x327 x328
0.03	v -x329 -x33 x330 -x331 x332 -x333 x334 x335 -x336 x337 -x338 x339 x34 -x340 -x341 x342 x343 -x344 x345 -x346 x347 -x348 x349
0.03	v x35 -x350 x351 -x352 -x353 x354 x355 -x356 -x357 x358 x359 -x36 -x360 -x361 x362 x363 -x364 x365 -x366 -x367 x368 -x369 -x37
0.03	v x370 x371 -x372 x373 -x374 -x375 x376 x377 -x378 -x379 x38 x380 -x381 x382 -x383 x384 x385 -x386 -x387 x388 -x389 -x39 x390
0.03	v x391 -x392 -x393 x394 x395 -x396 -x397 x398 -x399 x4 x40 x400 x41 -x42 -x43 x44 x45 -x46 x47 -x48 -x49 x5 x50 -x51 x52 -x53 x54
0.03	v x55 -x56 -x57 x58 -x59 -x6 x60 -x61 x62 x63 -x64 x65 -x66 x67 -x68 x69 -x7 -x70 x71 -x72 x73 -x74 -x75 x76 x77 -x78 -x79 x8 x80 x81
0.03	v -x82 x83 -x84 x85 -x86 x87 -x88 x89 x9 -x90 -x91 x92 -x93 x94 -x95 x96 -x97 x98 x99

Verifier Data (download as text)

OK	200

Watcher Data (download as text)

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1830 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGKILL): 1843200 Kb
Enforcing VSIZE limit: 1887436800 bytes
runsolver version 3.0.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node49/watcher-41875-1149283939 -o ROOT/results/node49/solver-41875-1149283939 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user11/PBS4L ROOT/tmp/node49/41875-1149283939/instance-41875-1149283939.opb 361916235 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.33 0.77 0.84 3/64 7307
/proc/meminfo: memFree=1773040/2055920 swapFree=4181416/4192956
[pid=7307] ppid=7305 vsize=1368 CPUtime=0
/proc/7307/stat : 7307 (PBS4L) D 7305 7307 7261 0 -1 4194304 111 0 0 0 0 0 0 0 19 0 1 0 194061018 1400832 95 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 135137645 0 2147483391 4096 0 18446744072099781622 0 0 17 1 0 0
/proc/7307/statm: 342 95 84 232 0 107 0

Child status: 0
Real time (s): 0.03125
CPU time (s): 0.025995
CPU user time (s): 0.023996
CPU system time (s): 0.001999
CPU usage (%): 83.184
Max. virtual memory (cumulated for all children) (Kb): 0

Launcher Data (download as text)

Begin job on node49 on Fri Jun  2 21:32:19 UTC 2006


FILE ID= 41875-1149283939

PBS_JOBID= 306398

BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/submitted-PB05/manquinho/primes-dimacs-cnf/normalized-aim-200-6_0-yes1-2.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user11/PBS4L ROOT/tmp/node49/41875-1149283939/instance-41875-1149283939.opb 361916235
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node49/watcher-41875-1149283939 -o ROOT/results/node49/solver-41875-1149283939 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user11/PBS4L ROOT/tmp/node49/41875-1149283939/instance-41875-1149283939.opb 361916235

MD5SUM SOLVER= ab46593c31a6a47b9d9920387a00d332
MD5SUM BENCH=  d83135464cb632376e759a94bebcd02c

RANDOM SEED= 361916235


/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		: 3000.216
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		: 3000.216
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:       1773248 kB
Buffers:         14256 kB
Cached:         211528 kB
SwapCached:       3036 kB
Active:          40640 kB
Inactive:       193656 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1773248 kB
SwapTotal:     4192956 kB
SwapFree:      4181416 kB
Dirty:              24 kB
Writeback:           0 kB
Mapped:          14908 kB
Slab:            34348 kB
Committed_AS:   286160 kB
PageTables:       1480 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node49 on Fri Jun  2 21:32:19 UTC 2006