Trace number 203838

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 NameAnswerCPU timeWall clock time
VALCSP 3.0SAT 1.20781 1.22579

DiagnosticValue
CHECKS174175000
NODES500

General information on the benchmark

Namedomino/
domino-500-100.xml
MD5SUM4e9b17f1b19795208b1dda6e74a2bdd6
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.038993
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables500
Number of constraints500
Maximum constraint arity2
Maximum domain size100
Number of constraints which are defined in extension0
Number of constraints which are defined in intension500
Global constraints used (with number of constraints)

Solver Data (download as text)

1.21	s SATISFIABLE
1.21	v 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 
1.21	d CHECKS 1.74175e+08
1.21	d NODES 500
1.21

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node48/watcher-203838-1168164832 -o ROOT/results/node48/solver-203838-1168164832 -C 1800 -M 900 /tmp/evaluation/203838-1168164832/VALCSP /tmp/evaluation/203838-1168164832/unknown.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 921600 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 972800 KiB
Current StackSize limit: 10240 KiB

/proc/loadavg: 1.92 1.98 1.96 5/75 25883
/proc/meminfo: memFree=1820840/2055920 swapFree=4192812/4192956
[pid=25882] ppid=25880 vsize=18540 CPUtime=0
/proc/25882/stat : 25882 (runsolver) R 25880 25882 24763 0 -1 4194368 16 0 0 0 0 0 0 0 20 0 1 0 164881907 18984960 279 18446744073709551615 4194304 4267372 548682069088 18446744073709551615 255539604775 0 0 4096 24578 0 0 0 17 1 0 0
/proc/25882/statm: 4635 279 244 17 0 2626 0

[startup+0.108707 s]
/proc/loadavg: 1.92 1.98 1.96 5/75 25883
/proc/meminfo: memFree=1820840/2055920 swapFree=4192812/4192956
[pid=25882] ppid=25880 vsize=13744 CPUtime=0.09
/proc/25882/stat : 25882 (VALCSP) R 25880 25882 24763 0 -1 4194304 3186 0 0 0 8 1 0 0 20 0 1 0 164881907 14073856 3164 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530192 0 0 4096 0 0 0 0 17 1 0 0
/proc/25882/statm: 3436 3164 64 8 0 3108 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 13744

[startup+0.516747 s]
/proc/loadavg: 1.92 1.98 1.96 5/75 25883
/proc/meminfo: memFree=1820840/2055920 swapFree=4192812/4192956
[pid=25882] ppid=25880 vsize=27472 CPUtime=0.5
/proc/25882/stat : 25882 (VALCSP) R 25880 25882 24763 0 -1 4194304 6610 0 0 0 47 3 0 0 24 0 1 0 164881907 28131328 6588 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134522287 0 0 4096 0 0 0 0 17 1 0 0
/proc/25882/statm: 6868 6588 66 8 0 6540 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 27472

Child status: 0
Real time (s): 1.22579
CPU time (s): 1.20781
CPU user time (s): 1.17182
CPU system time (s): 0.035994
CPU usage (%): 98.5338
Max. virtual memory (cumulated for all children) (KiB): 27472

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.17182
system time used= 0.035994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6640
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= 8
involuntary context switches= 28

runsolver used 0.007998 s user time and 0.006998 s system time

The end

Launcher Data (download as text)

Begin job on node48 on Sun Jan  7 10:13:52 UTC 2007


IDJOB= 203838
IDBENCH= 3984
FILE ID= node48/203838-1168164832

PBS_JOBID= 3478553

Free space on /tmp= 66563 MiB

BENCH NAME= HOME/pub/bench/CPAI06/domino/domino-500-100.xml
COMMAND LINE= /tmp/evaluation/203838-1168164832/VALCSP /tmp/evaluation/203838-1168164832/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node48/watcher-203838-1168164832 -o ROOT/results/node48/solver-203838-1168164832 -C 1800 -M 900  /tmp/evaluation/203838-1168164832/VALCSP /tmp/evaluation/203838-1168164832/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  4e9b17f1b19795208b1dda6e74a2bdd6

RANDOM SEED= 398955262

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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		: 3000.218
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		: 3000.218
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:       1821320 kB
Buffers:         41472 kB
Cached:         110304 kB
SwapCached:          0 kB
Active:          94076 kB
Inactive:        83372 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1821320 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:             196 kB
Writeback:           0 kB
Mapped:          37420 kB
Slab:            42496 kB
Committed_AS:  3472472 kB
PageTables:       1764 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= 66563 MiB



End job on node48 on Sun Jan  7 10:13:55 UTC 2007