Trace number 232780

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 0.214967 0.221657

DiagnosticValue
CHECKS477452
NODES16

General information on the benchmark

Nametaillard/os-taillard-4/
os-taillard-4-100-5.xml
MD5SUM3dda44b88a6aa16f0ef5f7bed335e014
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 benchmark0.014997
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables16
Number of constraints48
Maximum constraint arity2
Maximum domain size189
Number of constraints which are defined in extension0
Number of constraints which are defined in intension48
Global constraints used (with number of constraints)

Solver Data (download as text)

0.21	s SATISFIABLE
0.21	v 141 178 46 0 0 91 188 167 61 0 178 152 152 61 0 91 
0.21	d CHECKS 477452
0.21	d NODES 16
0.21

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/node15/watcher-232780-1168324026 -o ROOT/results/node15/solver-232780-1168324026 -C 1800 -M 900 /tmp/evaluation/232780-1168324026/VALCSP /tmp/evaluation/232780-1168324026/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: 1.49 1.84 1.93 3/93 29847
/proc/meminfo: memFree=1423704/2055920 swapFree=4174172/4192956
[pid=29846] ppid=29844 vsize=140 CPUtime=0
/proc/29846/stat : 29846 (VALCSP) R 29844 29846 29496 0 -1 4194304 33 0 0 0 0 0 0 0 20 0 1 0 180797692 143360 18 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 7449547 0 0 4096 0 0 0 0 17 1 0 0
/proc/29846/statm: 35 18 13 8 0 2 0

[startup+0.102756 s]
/proc/loadavg: 1.49 1.84 1.93 3/93 29847
/proc/meminfo: memFree=1423704/2055920 swapFree=4174172/4192956
[pid=29846] ppid=29844 vsize=3448 CPUtime=0.09
/proc/29846/stat : 29846 (VALCSP) R 29844 29846 29496 0 -1 4194304 611 0 0 0 9 0 0 0 20 0 1 0 180797692 3530752 589 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/29846/statm: 862 589 64 8 0 534 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3448

Child status: 0
Real time (s): 0.221657
CPU time (s): 0.214967
CPU user time (s): 0.208968
CPU system time (s): 0.005999
CPU usage (%): 96.9818
Max. virtual memory (cumulated for all children) (KiB): 5428

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.208968
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1180
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= 15

runsolver used 0.003999 s user time and 0.003999 s system time

The end

Launcher Data (download as text)

Begin job on node15 on Tue Jan  9 06:27:08 UTC 2007


IDJOB= 232780
IDBENCH= 6553
FILE ID= node15/232780-1168324026

PBS_JOBID= 3502725

Free space on /tmp= 66562 MiB

BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-4/os-taillard-4-100-5.xml
COMMAND LINE= /tmp/evaluation/232780-1168324026/VALCSP /tmp/evaluation/232780-1168324026/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node15/watcher-232780-1168324026 -o ROOT/results/node15/solver-232780-1168324026 -C 1800 -M 900  /tmp/evaluation/232780-1168324026/VALCSP /tmp/evaluation/232780-1168324026/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  3dda44b88a6aa16f0ef5f7bed335e014

RANDOM SEED= 765861180

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		: 3000.276
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		: 3000.276
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:       1424184 kB
Buffers:         44488 kB
Cached:         174656 kB
SwapCached:       6072 kB
Active:         430600 kB
Inactive:       146300 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1424184 kB
SwapTotal:     4192956 kB
SwapFree:      4174172 kB
Dirty:             212 kB
Writeback:           0 kB
Mapped:         377512 kB
Slab:            38812 kB
Committed_AS:  6387080 kB
PageTables:       3064 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= 66562 MiB



End job on node15 on Tue Jan  9 06:27:11 UTC 2007