Trace number 2683821

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
PBPASSolver 2010-06-13OPT14 0.134979 0.135977

General information on the benchmark

Name/OPT-SMALLINT-LIN/leberre/opb-paranoid/
misc2010/datasets/caixa/normalized-787.cudf.paranoid.opb
MD5SUM8c4aee9354f54edaa2e878481d0e2867
Bench CategoryOPT-SMALLINT-LIN (optimisation, small integers, linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark14
Best CPU time to get the best result obtained on this benchmark0.002998
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables33
Total number of constraints225
Number of constraints which are clauses225
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint3
Number of terms in the objective function 14
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 14
Number of bits of the sum of numbers in the objective function 4
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 14
Number of bits of the biggest sum of numbers4
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 

0.00/0.13	c 33 225 0 0 0 0 0 0
0.00/0.13	o 14
0.00/0.13	c 4 ~x247+2 ~x246+1 ~x245+1 ~x31+1 ~x29+1 ~x28+1 ~x27+1 ~x26+1 ~x24+1 ~x22-0=11
0.00/0.13	c 2 ~x246+1 ~x245+1 ~x31+1 ~x29+1 ~x28+1 ~x27+1 ~x26+1 ~x24+1 ~x22-0=5
0.00/0.13	o 14
0.00/0.13	s OPTIMUM FOUND
0.00/0.13	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 x29 x30 x31 x32 x33

Verifier Data 

OK	14

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2683821-1277511646/watcher-2683821-1277511646 -o /tmp/evaluation-result-2683821-1277511646/solver-2683821-1277511646 -C 1800 -W 2000 -M 1800 run HOME/instance-2683821-1277511646.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): 2000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 32515
/proc/meminfo: memFree=1843760/2059040 swapFree=4139460/4192956
[pid=32515] ppid=32513 vsize=8700 CPUtime=0
/proc/32515/stat : 32515 (run) S 32513 32515 31134 0 -1 4202496 390 134 0 0 0 0 0 0 20 0 1 0 92455570 8908800 251 1992294400 4194304 4922060 140734474029504 18446744073709551615 222256798853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/32515/statm: 2175 251 211 178 0 68 0

[startup+0.0493961 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 32515
/proc/meminfo: memFree=1843760/2059040 swapFree=4139460/4192956
[pid=32515] ppid=32513 vsize=8700 CPUtime=0
/proc/32515/stat : 32515 (run) S 32513 32515 31134 0 -1 4202496 390 134 0 0 0 0 0 0 20 0 1 0 92455570 8908800 251 1992294400 4194304 4922060 140734474029504 18446744073709551615 222256798853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/32515/statm: 2175 251 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.101401 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 32515
/proc/meminfo: memFree=1843760/2059040 swapFree=4139460/4192956
[pid=32515] ppid=32513 vsize=8700 CPUtime=0
/proc/32515/stat : 32515 (run) S 32513 32515 31134 0 -1 4202496 390 134 0 0 0 0 0 0 20 0 1 0 92455570 8908800 251 1992294400 4194304 4922060 140734474029504 18446744073709551615 222256798853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/32515/statm: 2175 251 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

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

Child status: 0
Real time (s): 0.135977
CPU time (s): 0.134979
CPU user time (s): 0.104984
CPU system time (s): 0.029995
CPU usage (%): 99.266
Max. virtual memory (cumulated for all children) (KiB): 8700

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.104984
system time used= 0.029995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4221
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= 6
involuntary context switches= 9

runsolver used 0.004999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node056 at 2010-06-26 02:20:46
IDJOB=2683821
IDBENCH=72141
IDSOLVER=1174
FILE ID=node056/2683821-1277511646
PBS_JOBID= 11190645
Free space on /tmp= 98380 MiB

SOLVER NAME= PBPASSolver 2010-06-13
BENCH NAME= PB10/normalized-PB10/OPT-SMALLINT-LIN/leberre/opb-paranoid/misc2010/datasets/caixa/normalized-787.cudf.paranoid.opb
COMMAND LINE= run BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2683821-1277511646/watcher-2683821-1277511646 -o /tmp/evaluation-result-2683821-1277511646/solver-2683821-1277511646 -C 1800 -W 2000 -M 1800  run HOME/instance-2683821-1277511646.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 8c4aee9354f54edaa2e878481d0e2867
RANDOM SEED=514456311

node056.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/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		: 3000.215
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.43
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		: 3000.215
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5599.47
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1844156 kB
Buffers:          8760 kB
Cached:         135100 kB
SwapCached:       7340 kB
Active:          75152 kB
Inactive:        82764 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1844156 kB
SwapTotal:     4192956 kB
SwapFree:      4139460 kB
Dirty:            1068 kB
Writeback:           8 kB
AnonPages:       11540 kB
Mapped:          11792 kB
Slab:            35028 kB
PageTables:       4068 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180860 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 98380 MiB
End job on node056 at 2010-06-26 02:20:46