Trace number 37688

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
Pueblo 1.3OPT262571 36.6464 36.6682

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/MIPLIB/
miplib/normalized-reduced-mps-v2-20-10-misc02.opb
MD5SUM249ed436a6071ad98c057d483cdcc59d
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark262571
Best CPU time to get the best result obtained on this benchmark0.067989
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 262571
Optimality of the best value was proved YES
Number of variables89
Total number of constraints39
Number of constraints which are clauses7
Number of constraints which are cardinality constraints (but not clauses)7
Number of constraints which are nor clauses,nor cardinality constraints25
Minimum length of a constraint4
Maximum length of a constraint79
Number of terms in the objective function 31
Biggest coefficient in the objective function 262145
Number of bits for the biggest coefficient in the objective function 19
Sum of the numbers in the objective function 524318
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 262145
Number of bits of the biggest number in a constraint 19
Biggest sum of numbers in a constraint 524334
Number of bits of the biggest sum of numbers20
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 Pueblo version 1.4 (September 2005)
0.00	c Developed @ University of Michigan, Ann Arbor, MI
0.00	c  by Hossein Sheini
0.00	c starting to Solve
0.00	c #variables read: 89 - #constraints read: 54
0.03	o 262622
0.04	o 262575
0.07	o 262573
0.08	o 262571
36.66	c optimum objective found = 262571
36.66	c total time              : 36.64 s
36.66	s OPTIMUM FOUND
36.66	v x59 x60 x61 x62 x63 x64 x65 x66 x67 x68 x69 x70 x71 -x72 -x73 x74 x75 -x76 -x77 x78 x79 -x80 -x81 -x82 -x83 -x84 -x85 -x86 -x87 -x88
36.66	v x89 -x3 -x4 -x5 -x6 -x7 -x8 x9 -x10 x11 -x12 -x15 -x16 -x17 -x18 -x19 -x20 -x21 -x22 -x23 -x24 -x27 -x28 -x29 x30 -x31 -x32 -x33
36.66	v -x34 -x35 -x36 -x39 -x40 -x41 -x42 x43 -x44 -x45 x46 -x47 -x48 -x51 x52 -x53 x54 -x55 x56 -x57 x58 -x1 -x2 -x13 -x14 -x25 -x26 -x37
36.66	v -x38 -x49 -x50

Verifier Data (download as text)

OK	262571

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/node4/watcher-37688-1149347715 -o ROOT/results/node4/solver-37688-1149347715 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user8/Pueblo13 ROOT/tmp/node4/37688-1149347715/instance-37688-1149347715.opb 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 1.00 0.97 0.97 3/64 13481
/proc/meminfo: memFree=1809440/2055920 swapFree=4181420/4192956
[pid=13481] ppid=13479 vsize=2328 CPUtime=0
/proc/13481/stat : 13481 (Pueblo13) R 13479 13481 13435 0 -1 4194304 149 0 0 0 0 0 0 0 18 0 1 0 200433441 2383872 130 18446744073709551615 134512640 134579064 4294956688 18446744073709551615 10558328 0 0 4096 0 0 0 0 17 1 0 0
/proc/13481/statm: 582 130 111 16 0 11 0

[startup+10.0021 s]
/proc/loadavg: 1.00 0.97 0.97 2/64 13481
/proc/meminfo: memFree=1809192/2055920 swapFree=4181420/4192956
[pid=13481] ppid=13479 vsize=2684 CPUtime=9.98
/proc/13481/stat : 13481 (Pueblo13) R 13479 13481 13435 0 -1 4194304 301 0 0 0 975 23 0 0 25 0 1 0 200433441 2748416 272 18446744073709551615 134512640 134579064 4294956688 18446744073709551615 134561707 0 0 4096 0 0 0 0 17 1 0 0
/proc/13481/statm: 671 272 205 16 0 112 0
Current children cumulated CPU time (s) 9.98
Current children cumulated vsize (Kb) 2684

[startup+20.0081 s]
/proc/loadavg: 1.00 0.97 0.97 2/64 13481
/proc/meminfo: memFree=1809256/2055920 swapFree=4181420/4192956
[pid=13481] ppid=13479 vsize=2684 CPUtime=19.98
/proc/13481/stat : 13481 (Pueblo13) R 13479 13481 13435 0 -1 4194304 311 0 0 0 1950 48 0 0 25 0 1 0 200433441 2748416 282 18446744073709551615 134512640 134579064 4294956688 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/13481/statm: 671 282 205 16 0 112 0
Current children cumulated CPU time (s) 19.98
Current children cumulated vsize (Kb) 2684

[startup+30.014 s]
/proc/loadavg: 1.00 0.97 0.97 2/64 13481
/proc/meminfo: memFree=1809192/2055920 swapFree=4181420/4192956
[pid=13481] ppid=13479 vsize=2684 CPUtime=29.99
/proc/13481/stat : 13481 (Pueblo13) R 13479 13481 13435 0 -1 4194304 317 0 0 0 2930 69 0 0 25 0 1 0 200433441 2748416 288 18446744073709551615 134512640 134579064 4294956688 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/13481/statm: 671 288 205 16 0 112 0
Current children cumulated CPU time (s) 29.99
Current children cumulated vsize (Kb) 2684

Child status: 30
Real time (s): 36.6682
CPU time (s): 36.6464
CPU user time (s): 35.7996
CPU system time (s): 0.846871
CPU usage (%): 99.9408
Max. virtual memory (cumulated for all children) (Kb): 2684

Launcher Data (download as text)

Begin job on node4 on Sat Jun  3 15:15:15 UTC 2006


FILE ID= 37688-1149347715

PBS_JOBID= 310795

BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/MIPLIB/miplib/normalized-reduced-mps-v2-20-10-misc02.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user8/Pueblo13 ROOT/tmp/node4/37688-1149347715/instance-37688-1149347715.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node4/watcher-37688-1149347715 -o ROOT/results/node4/solver-37688-1149347715 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user8/Pueblo13 ROOT/tmp/node4/37688-1149347715/instance-37688-1149347715.opb

MD5SUM SOLVER= b45add8200bccdf53727749bff226bd1
MD5SUM BENCH=  249ed436a6071ad98c057d483cdcc59d

RANDOM SEED= 956211626


/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		: 3000.236
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		: 3000.236
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:       1809648 kB
Buffers:         15616 kB
Cached:         171552 kB
SwapCached:       3164 kB
Active:          37632 kB
Inactive:       158168 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1809648 kB
SwapTotal:     4192956 kB
SwapFree:      4181420 kB
Dirty:             268 kB
Writeback:           0 kB
Mapped:          14652 kB
Slab:            36372 kB
Committed_AS:   319512 kB
PageTables:       1500 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node4 on Sat Jun  3 15:15:52 UTC 2006