Trace number 235451

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
Mistral 2006-12-04SAT 0.199968 0.208544

General information on the benchmark

Nametaillard/os-taillard-10/
os-taillard-10-105-3.xml
MD5SUM5a2186f5581c086b005f3ac2c7f1a5fc
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 benchmark0.199968
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables100
Number of constraints900
Maximum constraint arity2
Maximum domain size606
Number of constraints which are defined in extension0
Number of constraints which are defined in intension900
Global constraints used (with number of constraints)

Solver Data (download as text)

0.13	c 
0.13	c Parsing xml file
0.13	c 	domains...............    0
0.13	c 	variables.............    0
0.13	c 	predicates............    0
0.13	c 	constraints........... 0.05
0.13	c Allocating memory
0.13	c 
0.13	c time limit = -1
0.13	c heuristic = dom/wdeg
0.13	c restart policy = No restart
0.13	c 
0.13	c Solving
0.13	c
0.19	s SATISFIABLE
0.19	v 133 381 0 83 291 432 596 227 519 563 581 546 170 143 0 265 465 83 364 324 0 143 254 432 76 88 485 512 337 44 529 500 188 434 350 227 332 0 557 81 563 420 529 326 133 489 155 0 229 51 507 514 348 29 557 583 536 217 409 169 519 350 246 0 445 201 61 76 224 155 551 514 462 434 299 225 206 170 76 0 535 500 445 420 337 243 206 76 44 0 536 465 393 348 333 332 243 173 81 0
0.19	d          SAT      1069 BTS      0.09 s

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/node35/watcher-235451-1168337883 -o ROOT/results/node35/solver-235451-1168337883 -C 1800 -M 900 /tmp/evaluation/235451-1168337883/mistral/bin/solver /tmp/evaluation/235451-1168337883/unknown.xml -v 1 

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: 2.02 2.01 1.85 5/69 18229
/proc/meminfo: memFree=1695152/2055920 swapFree=4184712/4192956
[pid=18228] ppid=18217 vsize=0 CPUtime=0
/proc/18228/stat : 18228 (runsolver) R 18217 18228 15816 0 -1 4194368 16 0 0 0 0 0 0 0 18 0 1 0 182181963 0 0 18446744073709551615 0 0 0 18446744073709551615 266134416679 0 0 4096 24578 0 0 0 17 1 0 0
/proc/18228/statm: 0 0 0 0 0 0 0

[startup+0.107607 s]
/proc/loadavg: 2.02 2.01 1.85 5/69 18229
/proc/meminfo: memFree=1695152/2055920 swapFree=4184712/4192956
[pid=18228] ppid=18217 vsize=12736 CPUtime=0.09
/proc/18228/stat : 18228 (solver) R 18217 18228 15816 0 -1 4194304 2289 0 0 0 9 0 0 0 18 0 1 0 182181963 13041664 2257 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134727400 0 0 4096 0 0 0 0 17 0 0 0
/proc/18228/statm: 3184 2257 716 92 0 1528 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12736

Child status: 0
Real time (s): 0.208544
CPU time (s): 0.199968
CPU user time (s): 0.19297
CPU system time (s): 0.006998
CPU usage (%): 95.8876
Max. virtual memory (cumulated for all children) (KiB): 12736

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.19297
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2309
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= 9

runsolver used 0.003999 s user time and 0.004999 s system time

The end

Launcher Data (download as text)

Begin job on node35 on Tue Jan  9 10:18:03 UTC 2007


IDJOB= 235451
IDBENCH= 6770
FILE ID= node35/235451-1168337883

PBS_JOBID= 3503366

Free space on /tmp= 66549 MiB

BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-10/os-taillard-10-105-3.xml
COMMAND LINE= /tmp/evaluation/235451-1168337883/mistral/bin/solver /tmp/evaluation/235451-1168337883/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node35/watcher-235451-1168337883 -o ROOT/results/node35/solver-235451-1168337883 -C 1800 -M 900  /tmp/evaluation/235451-1168337883/mistral/bin/solver /tmp/evaluation/235451-1168337883/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  5a2186f5581c086b005f3ac2c7f1a5fc

RANDOM SEED= 65113245

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		: 3000.234
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:       1695432 kB
Buffers:         12220 kB
Cached:         280624 kB
SwapCached:       2072 kB
Active:          92048 kB
Inactive:       215664 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1695432 kB
SwapTotal:     4192956 kB
SwapFree:      4184712 kB
Dirty:           13940 kB
Writeback:           0 kB
Mapped:          21824 kB
Slab:            38416 kB
Committed_AS:  4004804 kB
PageTables:       1696 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= 66549 MiB



End job on node35 on Tue Jan  9 10:18:03 UTC 2007