Trace number 281826

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
CSP4J - MaxCSP 2006-12-19? (problem) 0.402937 0.456138

DiagnosticValue
NODES0

General information on the benchmark

NameMaxCSP/randomMaxCSP/denseTight/
vcsp-25-10-25-87-37_ext.xml
MD5SUMfa2de19cf03af4eccfd6a6978a10a4c8
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkMOPT
Best Number of satisfied constraints46
Best CPU time to get the best result obtained on this benchmark4.97524
Satisfiable
(Un)Satisfiability was proved
Number of variables25
Number of constraints75
Maximum constraint arity2
Maximum domain size10
Number of constraints which are defined in extension75
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.41	s UNSATISFIABLE
0.41	d NODES 0

Verifier Data (download as text)

ERROR: no interpretation found !

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node1/watcher-281826-1169314590 -o ROOT/results/node1/solver-281826-1169314590 -C 2400 -M 900 /tmp/evaluation/281826-1169314590/cspfj.sh -solver MinConflicts -max -competition /tmp/evaluation/281826-1169314590/unknown.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 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: 2.02 2.02 2.00 3/93 18909
/proc/meminfo: memFree=1267544/2055920 swapFree=4165612/4192956
[pid=18908] ppid=18906 vsize=18540 CPUtime=0
/proc/18908/stat : 18908 (runsolver) R 18906 18908 17860 0 -1 4194368 16 0 0 0 0 0 0 0 20 0 1 0 279854774 18984960 279 18446744073709551615 4194304 4267372 548682069008 18446744073709551615 259353275687 0 0 4096 24578 0 0 0 17 1 0 0
/proc/18908/statm: 4635 279 244 17 0 2626 0

[startup+0.102207 s]
/proc/loadavg: 2.02 2.02 2.00 3/93 18909
/proc/meminfo: memFree=1267544/2055920 swapFree=4165612/4192956
[pid=18908] ppid=18906 vsize=5352 CPUtime=0
/proc/18908/stat : 18908 (cspfj.sh) S 18906 18908 17860 0 -1 4194304 315 128 0 0 0 0 0 0 21 0 1 0 279854774 5480448 240 18446744073709551615 4194304 4889804 548682069264 18446744073709551615 259353273156 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/18908/statm: 1338 240 201 169 0 49 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5352

Child status: 0
Real time (s): 0.456138
CPU time (s): 0.402937
CPU user time (s): 0.362944
CPU system time (s): 0.039993
CPU usage (%): 88.3366
Max. virtual memory (cumulated for all children) (KiB): 5352

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.362944
system time used= 0.039993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4172
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 467
involuntary context switches= 370

runsolver used 0.004999 s user time and 0.003999 s system time

The end

Launcher Data (download as text)

Begin job on node1 on Sat Jan 20 17:36:30 UTC 2007


IDJOB= 281826
IDBENCH= 12282
IDSOLVER= 65
FILE ID= node1/281826-1169314590

PBS_JOBID= 3609970

Free space on /tmp= 66563 MiB

SOLVER NAME= CSP4J - MaxCSP 2006-12-19
BENCH NAME= HOME/pub/bench/CPAI06/MaxCSP/randomMaxCSP/denseTight/vcsp-25-10-25-87-37_ext.xml
COMMAND LINE= /tmp/evaluation/281826-1169314590/cspfj.sh -solver MinConflicts -max -competition /tmp/evaluation/281826-1169314590/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node1/watcher-281826-1169314590 -o ROOT/results/node1/solver-281826-1169314590 -C 2400 -M 900  /tmp/evaluation/281826-1169314590/cspfj.sh -solver MinConflicts -max -competition /tmp/evaluation/281826-1169314590/unknown.xml

META MD5SUM SOLVER= ae5901f6cce23734dab709fa25e92adb
MD5SUM BENCH=  fa2de19cf03af4eccfd6a6978a10a4c8

RANDOM SEED= 683692030

TIME LIMIT= 2400 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		: 3000.234
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		: 3000.234
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:       1268024 kB
Buffers:         54616 kB
Cached:         588984 kB
SwapCached:       4372 kB
Active:         317772 kB
Inactive:       392112 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1268024 kB
SwapTotal:     4192956 kB
SwapFree:      4165612 kB
Dirty:             300 kB
Writeback:           0 kB
Mapped:          85896 kB
Slab:            62620 kB
Committed_AS:  9268692 kB
PageTables:       2448 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 node1 on Sat Jan 20 17:36:31 UTC 2007