Trace number 84853

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
glpPB 0.2OPT258411 1.16982 1.17542

General information on the benchmark

Namenormalized-PB06/OPT-MEDINT/mps-v2-20-10/MIPLIB/
miplib/normalized-mps-v2-20-10-p0282.opb
MD5SUM3d08eecd6841b46afc4009161d25bc6a
Bench CategoryOPT-MEDINT (optimisation, medium integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark258411
Best CPU time to get the best result obtained on this benchmark1.16982
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 258411
Optimality of the best value was proved YES
Number of variables282
Total number of constraints221
Number of constraints which are clauses177
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints44
Minimum length of a constraint2
Maximum length of a constraint57
Number of terms in the objective function 282
Biggest coefficient in the objective function 160646
Number of bits for the biggest coefficient in the objective function 18
Sum of the numbers in the objective function 1302615
Number of bits of the sum of numbers in the objective function 21
Biggest number in a constraint 160646
Number of bits of the biggest number in a constraint 18
Biggest sum of numbers in a constraint 1302615
Number of bits of the biggest sum of numbers21
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data (download as text)

0.00	c glpPB 0.2 (July 2006)
0.00	c An Application of GLPK 4.10 for PB Constraints
0.00	c Done @ University of Michigan, Ann Arbor, MI
0.00	c  by Hossein Sheini
1.17	c starting to Solve
1.17	c total time = 1.16
1.17	o 258411
1.17	c quality of integer solution is H
1.17	s OPTIMUM FOUND
1.17	v -x1 -x2 -x3 x4 -x5 -x6 -x7 -x8 -x9 -x10 -x11 x12 -x13 -x14 -x15 -x16 -x17 -x18 -x19 -x20 -x21 -x22 -x23 -x24 -x25 -x26 -x27 -x28
1.17	v -x29 -x30 -x31 -x32 -x33 -x34 -x35 -x36 -x37 -x38 -x39 -x40 -x41 -x42 -x43 -x44 -x45 -x46 -x47 -x48 -x49 -x50 -x51 -x52 -x53 -x54
1.17	v -x55 -x56 -x57 -x58 -x59 -x60 -x61 -x62 -x63 -x64 -x65 -x66 -x67 -x68 -x69 -x70 -x71 -x72 -x73 -x74 -x75 -x76 -x77 -x78 -x79 -x80
1.17	v -x81 -x82 -x83 -x84 -x85 -x86 -x87 -x88 -x89 -x90 -x91 x92 -x93 -x94 -x95 -x96 -x97 -x98 -x99 -x100 -x101 x102 -x103 x104 -x105
1.17	v -x106 -x107 -x108 -x109 -x110 -x111 -x112 -x113 -x114 -x115 -x116 -x117 x118 -x119 -x120 -x121 -x122 -x123 -x124 -x125 -x126
1.17	v -x127 -x128 -x129 -x130 -x131 -x132 -x133 -x134 -x135 -x136 -x137 -x138 -x139 -x140 -x141 -x142 -x143 -x144 -x145 -x146 -x147
1.17	v -x148 -x149 -x150 -x151 -x152 -x153 -x154 -x155 x156 -x157 -x158 -x159 -x160 -x161 -x162 -x163 -x164 -x165 -x166 -x167 -x168
1.17	v -x169 x170 -x171 -x172 -x173 -x174 -x175 -x176 -x177 -x178 -x179 -x180 -x181 -x182 -x183 -x184 -x185 -x186 -x187 -x188 -x189
1.17	v -x190 -x191 x192 -x193 -x194 -x195 -x196 -x197 -x198 -x199 x200 -x201 -x202 -x203 -x204 -x205 -x206 -x207 -x208 -x209 -x210
1.17	v -x211 -x212 -x213 -x214 -x215 x216 -x217 -x218 -x219 -x220 -x221 -x222 -x223 x224 -x225 x226 -x227 -x228 -x229 -x230 -x231
1.17	v -x232 -x233 -x234 -x235 -x236 -x237 x238 -x239 -x240 x241 -x242 x243 x244 x245 -x246 x247 -x248 x249 -x250 -x251 x252 -x253
1.17	v -x254 x255 -x256 x257 x258 -x259 -x260 x261 -x262 x263 x264 -x265 -x266 -x267 -x268 -x269 -x270 -x271 -x272 -x273 x274 -x275
1.17	v x276 x277 x278 -x279 -x280 x281 x282

Verifier Data (download as text)

OK	258411

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

runsolver version 3.0.3 (c) roussel@cril.univ-artois.fr

Enforcing memory limit (will send SIGKILL): 1843200 Kb
Enforcing VSIZE limit: 1887436800 bytes
command line: runsolver --timestamp -w ROOT/results/node61/watcher-84853-1154162276 -o ROOT/results/node61/solver-84853-1154162276 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user8/glpPBv3 ROOT/tmp/node61/84853-1154162276/instance-84853-1154162276.opb 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.99 0.97 0.91 3/64 16660
/proc/meminfo: memFree=1339408/2055920 swapFree=4183096/4192956
[pid=16660] ppid=16658 vsize=2424 CPUtime=0
/proc/16660/stat : 16660 (glpPBv3) R 16658 16660 16611 0 -1 0 149 0 0 0 0 0 0 0 18 0 1 0 163097757 2482176 129 18446744073709551615 134512640 134678228 4294956672 18446744073709551615 10353528 0 0 4096 0 0 0 0 17 1 0 0
/proc/16660/statm: 606 129 110 40 0 11 0

Child status: 30
Real time (s): 1.17542
CPU time (s): 1.16982
CPU user time (s): 1.15882
CPU system time (s): 0.010998
CPU usage (%): 99.5238
Max. virtual memory (cumulated for all children) (Kb): 0
The end

Launcher Data (download as text)

Begin job on node61 on Sat Jul 29 08:37:56 UTC 2006


FILE ID= 84853-1154162276

PBS_JOBID= 892627

BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-MEDINT/mps-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-p0282.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user8/glpPBv3 ROOT/tmp/node61/84853-1154162276/instance-84853-1154162276.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node61/watcher-84853-1154162276 -o ROOT/results/node61/solver-84853-1154162276 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user8/glpPBv3 ROOT/tmp/node61/84853-1154162276/instance-84853-1154162276.opb

MD5SUM SOLVER= 29ce95346658d7502ba983059bfb8cff
MD5SUM BENCH=  3d08eecd6841b46afc4009161d25bc6a

RANDOM SEED= 609433980

TIMEOUT= 1800 seconds


/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		: 3000.267
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		: 3000.267
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:       1339616 kB
Buffers:         41840 kB
Cached:         595716 kB
SwapCached:       4024 kB
Active:          84608 kB
Inactive:       561784 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1339616 kB
SwapTotal:     4192956 kB
SwapFree:      4183096 kB
Dirty:             144 kB
Writeback:           0 kB
Mapped:          14820 kB
Slab:            56092 kB
Committed_AS:  1150108 kB
PageTables:       1404 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264884 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node61 on Sat Jul 29 08:37:57 UTC 2006