Trace number 362802

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) 0.759883 0.761676

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-share2b.opb
MD5SUM3ec28475c9d1079169f926174383d0c1
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark-52
Best CPU time to get the best result obtained on this benchmark64.5682
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -52
Optimality of the best value was proved YES
Number of variables2370
Total number of constraints96
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 constraints96
Minimum length of a constraint30
Maximum length of a constraint360
Number of terms in the objective function 870
Biggest coefficient in the objective function 23589
Number of bits for the biggest coefficient in the objective function 15
Sum of the numbers in the objective function 524951
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 524951
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)

0.00/0.00	c glpPB 0.2 (July 2006)
0.00/0.00	c An Application of GLPK 4.10 for PB Constraints
0.00/0.00	c Done @ University of Michigan, Ann Arbor, MI
0.00/0.00	c  by Hossein Sheini
0.69/0.75	c starting to Solve
0.69/0.75	Assertion failed: x >= lb; file glpmip2.c; line 230

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/362802-1177018366/instance-362802-1177018366.opb is already a linear file

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node38/watcher-362802-1177018366 -o ROOT/results/node38/solver-362802-1177018366 -C 1800 -W 3600 -M 1800 --output-limit 1,15 glpPBv3 /tmp/evaluation/362802-1177018366/instance-362802-1177018366.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 3600 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.04 1.01 1.00 3/77 972
/proc/meminfo: memFree=1755784/2055920 swapFree=4159716/4192956
[pid=972] ppid=970 vsize=2644 CPUtime=0
/proc/972/stat : 972 (glpPBv3) R 970 972 487 0 -1 0 258 0 0 0 0 0 0 0 18 0 1 0 134003235 2707456 228 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 9072343 0 0 4096 0 0 0 0 17 1 0 0
/proc/972/statm: 661 228 192 40 0 76 0

[startup+0.02155 s]
/proc/loadavg: 1.04 1.01 1.00 3/77 972
/proc/meminfo: memFree=1755784/2055920 swapFree=4159716/4192956
[pid=972] ppid=970 vsize=2780 CPUtime=0.01
/proc/972/stat : 972 (glpPBv3) R 970 972 487 0 -1 0 311 0 0 0 1 0 0 0 18 0 1 0 134003235 2846720 281 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 9065938 0 0 4096 0 0 0 0 17 1 0 0
/proc/972/statm: 695 283 199 40 0 110 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2780

[startup+0.101564 s]
/proc/loadavg: 1.04 1.01 1.00 3/77 972
/proc/meminfo: memFree=1755784/2055920 swapFree=4159716/4192956
[pid=972] ppid=970 vsize=4584 CPUtime=0.09
/proc/972/stat : 972 (glpPBv3) R 970 972 487 0 -1 0 763 0 0 0 9 0 0 0 18 0 1 0 134003235 4694016 732 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/972/statm: 1146 732 221 40 0 561 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4584

[startup+0.301603 s]
/proc/loadavg: 1.04 1.01 1.00 3/77 972
/proc/meminfo: memFree=1755784/2055920 swapFree=4159716/4192956
[pid=972] ppid=970 vsize=5504 CPUtime=0.29
/proc/972/stat : 972 (glpPBv3) R 970 972 487 0 -1 0 3643 0 0 0 28 1 0 0 19 0 1 0 134003235 5636096 988 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/972/statm: 1376 988 227 40 0 791 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5504

[startup+0.70168 s]
/proc/loadavg: 1.04 1.01 1.00 3/77 972
/proc/meminfo: memFree=1755784/2055920 swapFree=4159716/4192956
[pid=972] ppid=970 vsize=5176 CPUtime=0.69
/proc/972/stat : 972 (glpPBv3) R 970 972 487 0 -1 0 6926 0 0 0 67 2 0 0 23 0 1 0 134003235 5300224 909 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 134543497 0 0 4096 0 0 0 0 17 1 0 0
/proc/972/statm: 1294 909 227 40 0 709 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5176

Solver just ended. Dumping a history of the last processes samples

Child status: 1
Real time (s): 0.761676
CPU time (s): 0.759883
CPU user time (s): 0.730888
CPU system time (s): 0.028995
CPU usage (%): 99.7646
Max. virtual memory (cumulated for all children) (KiB): 5504

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.730888
system time used= 0.028995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7424
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= 15

runsolver used 0.002999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node38 on Thu Apr 19 21:32:46 UTC 2007

IDJOB= 362802
IDBENCH= 1650
IDSOLVER= 166
FILE ID= node38/362802-1177018366

PBS_JOBID= 4630571

Free space on /tmp= 66241 MiB

SOLVER NAME= glpPB 0.2
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-share2b.opb
COMMAND LINE= glpPBv3 /tmp/evaluation/362802-1177018366/instance-362802-1177018366.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node38/convwatcher-362802-1177018366 -o ROOT/results/node38/conversion-362802-1177018366 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/362802-1177018366/instance-362802-1177018366.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node38/watcher-362802-1177018366 -o ROOT/results/node38/solver-362802-1177018366 -C 1800 -W 3600 -M 1800 --output-limit 1,15  glpPBv3 /tmp/evaluation/362802-1177018366/instance-362802-1177018366.opb

META MD5SUM SOLVER= 9ebec3e8d890fdeefad01654ad9b68b7
MD5SUM BENCH=  3ec28475c9d1079169f926174383d0c1

RANDOM SEED= 439618089

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node38.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.263
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		: 3000.263
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:       1756192 kB
Buffers:         30724 kB
Cached:         182484 kB
SwapCached:       3100 kB
Active:          71232 kB
Inactive:       167104 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1756192 kB
SwapTotal:     4192956 kB
SwapFree:      4159716 kB
Dirty:            2476 kB
Writeback:           0 kB
Mapped:          33336 kB
Slab:            46660 kB
Committed_AS:  1537812 kB
PageTables:       2064 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= 66241 MiB

End job on node38 on Thu Apr 19 21:32:47 UTC 2007