Trace number 84992

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 0.2? (exit code) 57.7512 57.7744

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-reduced-mps-v2-20-10-capri.opb
MD5SUM045a73dda564043a5f702f829082d89b
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmark
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables7817
Total number of constraints402
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints402
Minimum length of a constraint11
Maximum length of a constraint647
Number of terms in the objective function 580
Biggest coefficient in the objective function 32953
Number of bits for the biggest coefficient in the objective function 16
Sum of the numbers in the objective function 524724
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 262144
Number of bits of the biggest number in a constraint 19
Biggest sum of numbers in a constraint 524837
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

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
57.77	c starting to Solve
57.77	Assertion failed: x <= ub; file glpmip2.c; line 239

Verifier Data (download as text)

ERROR: no interpretation found !

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/node40/watcher-84992-1154164087 -o ROOT/results/node40/solver-84992-1154164087 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user8/glpPBv3 ROOT/tmp/node40/84992-1154164087/instance-84992-1154164087.opb 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 1.00 0.99 0.91 2/64 24892
/proc/meminfo: memFree=1340664/2055920 swapFree=4183148/4192956
[pid=24892] ppid=24890 vsize=268 CPUtime=0
/proc/24892/stat : 24892 (glpPBv3) D 24890 24892 24843 0 -1 0 39 0 0 0 0 0 0 0 19 0 1 0 163279811 274432 23 18446744073709551615 134512640 134678228 4294956672 18446744073709551615 6910756 0 2147483391 4096 0 18446744072099781622 0 0 17 1 0 0
/proc/24892/statm: 67 23 18 40 0 2 0

[startup+10.0025 s]
/proc/loadavg: 1.00 0.99 0.91 2/64 24892
/proc/meminfo: memFree=1334336/2055920 swapFree=4183148/4192956
[pid=24892] ppid=24890 vsize=8568 CPUtime=9.99
/proc/24892/stat : 24892 (glpPBv3) R 24890 24892 24843 0 -1 0 22391 0 0 0 990 9 0 0 25 0 1 0 163279811 8773632 1769 18446744073709551615 134512640 134678228 4294956672 18446744073709551615 134629115 0 0 4096 0 0 0 0 17 1 0 0
/proc/24892/statm: 2142 1769 227 40 0 1559 0
Current children cumulated CPU time (s) 9.99
Current children cumulated vsize (Kb) 8568

[startup+20.0088 s]
/proc/loadavg: 1.00 0.99 0.91 2/64 24892
/proc/meminfo: memFree=1334336/2055920 swapFree=4183148/4192956
[pid=24892] ppid=24890 vsize=8568 CPUtime=20
/proc/24892/stat : 24892 (glpPBv3) R 24890 24892 24843 0 -1 0 38231 0 0 0 1982 18 0 0 25 0 1 0 163279811 8773632 1769 18446744073709551615 134512640 134678228 4294956672 18446744073709551615 134543281 0 0 4096 0 0 0 0 17 1 0 0
/proc/24892/statm: 2142 1769 227 40 0 1559 0
Current children cumulated CPU time (s) 20
Current children cumulated vsize (Kb) 8568

[startup+30.0161 s]
/proc/loadavg: 1.00 0.99 0.91 2/64 24892
/proc/meminfo: memFree=1334336/2055920 swapFree=4183148/4192956
[pid=24892] ppid=24890 vsize=8568 CPUtime=30
/proc/24892/stat : 24892 (glpPBv3) R 24890 24892 24843 0 -1 0 51551 0 0 0 2976 24 0 0 25 0 1 0 163279811 8773632 1769 18446744073709551615 134512640 134678228 4294956672 18446744073709551615 134543401 0 0 4096 0 0 0 0 17 1 0 0
/proc/24892/statm: 2142 1769 227 40 0 1559 0
Current children cumulated CPU time (s) 30
Current children cumulated vsize (Kb) 8568

[startup+40.0224 s]
/proc/loadavg: 1.00 0.99 0.91 2/64 24892
/proc/meminfo: memFree=1334272/2055920 swapFree=4183148/4192956
[pid=24892] ppid=24890 vsize=8568 CPUtime=40
/proc/24892/stat : 24892 (glpPBv3) R 24890 24892 24843 0 -1 0 64876 0 0 0 3970 30 0 0 25 0 1 0 163279811 8773632 1769 18446744073709551615 134512640 134678228 4294956672 18446744073709551615 134534903 0 0 4096 0 0 0 0 17 1 0 0
/proc/24892/statm: 2142 1769 227 40 0 1559 0
Current children cumulated CPU time (s) 40
Current children cumulated vsize (Kb) 8568

[startup+50.0287 s]
/proc/loadavg: 1.00 0.99 0.91 2/64 24892
/proc/meminfo: memFree=1334336/2055920 swapFree=4183148/4192956
[pid=24892] ppid=24890 vsize=8568 CPUtime=50
/proc/24892/stat : 24892 (glpPBv3) R 24890 24892 24843 0 -1 0 78886 0 0 0 4963 37 0 0 25 0 1 0 163279811 8773632 1769 18446744073709551615 134512640 134678228 4294956672 18446744073709551615 134542069 0 0 4096 0 0 0 0 17 1 0 0
/proc/24892/statm: 2142 1769 227 40 0 1559 0
Current children cumulated CPU time (s) 50
Current children cumulated vsize (Kb) 8568

Child status: 1
Real time (s): 57.7744
CPU time (s): 57.7512
CPU user time (s): 57.3053
CPU system time (s): 0.445932
CPU usage (%): 99.9599
Max. virtual memory (cumulated for all children) (Kb): 8568
The end

Launcher Data (download as text)

Begin job on node40 on Sat Jul 29 09:08:07 UTC 2006


FILE ID= 84992-1154164087

PBS_JOBID= 892766

BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-reduced-mps-v2-20-10-capri.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user8/glpPBv3 ROOT/tmp/node40/84992-1154164087/instance-84992-1154164087.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node40/watcher-84992-1154164087 -o ROOT/results/node40/solver-84992-1154164087 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user8/glpPBv3 ROOT/tmp/node40/84992-1154164087/instance-84992-1154164087.opb

MD5SUM SOLVER= 29ce95346658d7502ba983059bfb8cff
MD5SUM BENCH=  045a73dda564043a5f702f829082d89b

RANDOM SEED= 850735233

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		: 3000.245
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		: 3000.245
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:       1340872 kB
Buffers:         33596 kB
Cached:         607780 kB
SwapCached:       3672 kB
Active:          86456 kB
Inactive:       563528 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1340872 kB
SwapTotal:     4192956 kB
SwapFree:      4183148 kB
Dirty:             172 kB
Writeback:           0 kB
Mapped:          14748 kB
Slab:            51064 kB
Committed_AS:   621376 kB
PageTables:       1424 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node40 on Sat Jul 29 09:09:05 UTC 2006