Trace number 233750

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 7.2259 7.26195

General information on the benchmark

Nametaillard/os-taillard-7/
os-taillard-7-100-9.xml
MD5SUMc8447009f795ef7e4fc3e22f2417f8c2
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 benchmark0.637902
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables49
Number of constraints294
Maximum constraint arity2
Maximum domain size398
Number of constraints which are defined in extension0
Number of constraints which are defined in intension294
Global constraints used (with number of constraints)

Solver Data (download as text)

0.20	c 
0.20	c Parsing xml file
0.20	c 	domains...............    0
0.20	c 	variables.............    0
0.20	c 	predicates............    0
0.20	c 	constraints........... 0.02
0.20	c Allocating memory
0.20	c 
0.20	c time limit = -1
0.20	c heuristic = dom/wdeg
0.20	c restart policy = No restart
0.20	c 
0.20	c Solving
0.20	c
7.25	s SATISFIABLE
7.25	v 0 267 215 81 209 167 19 394 202 189 266 368 97 0 0 109 354 189 105 276 19 265 0 109 299 197 90 167 105 368 54 276 215 0 151 57 167 97 216 327 197 0 375 354 265 216 151 84 0
7.25	d          SAT    259838 BTS       7.2 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/node61/watcher-233750-1168327825 -o ROOT/results/node61/solver-233750-1168327825 -C 1800 -M 900 /tmp/evaluation/233750-1168327825/mistral/bin/solver /tmp/evaluation/233750-1168327825/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: 1.92 1.93 1.61 2/73 13314
/proc/meminfo: memFree=1864224/2055920 swapFree=4192812/4192956
[pid=13313] ppid=13311 vsize=540 CPUtime=0
/proc/13313/stat : 13313 (solver) R 13311 13313 11368 0 -1 4194304 41 0 0 0 0 0 0 0 19 0 1 0 181180424 552960 26 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 10384164 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/13313/statm: 135 26 21 92 0 18 0

[startup+0.103463 s]
/proc/loadavg: 1.92 1.93 1.61 2/73 13314
/proc/meminfo: memFree=1864224/2055920 swapFree=4192812/4192956
[pid=13313] ppid=13311 vsize=8368 CPUtime=0.09
/proc/13313/stat : 13313 (solver) R 13311 13313 11368 0 -1 4194304 1172 0 0 0 9 0 0 0 18 0 1 0 181180424 8568832 1140 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134715907 0 0 4096 0 0 0 0 17 1 0 0
/proc/13313/statm: 2092 1140 716 92 0 436 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8368

[startup+0.513529 s]
/proc/loadavg: 1.92 1.93 1.61 2/73 13314
/proc/meminfo: memFree=1864224/2055920 swapFree=4192812/4192956
[pid=13313] ppid=13311 vsize=8368 CPUtime=0.5
/proc/13313/stat : 13313 (solver) R 13311 13313 11368 0 -1 4194304 1172 0 0 0 50 0 0 0 21 0 1 0 181180424 8568832 1140 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134785559 0 0 4096 0 0 0 0 17 1 0 0
/proc/13313/statm: 2092 1140 716 92 0 436 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 8368

[startup+1.33367 s]
/proc/loadavg: 1.92 1.93 1.61 3/73 13314
/proc/meminfo: memFree=1862368/2055920 swapFree=4192812/4192956
[pid=13313] ppid=13311 vsize=8372 CPUtime=1.31
/proc/13313/stat : 13313 (solver) R 13311 13313 11368 0 -1 4194304 1173 0 0 0 131 0 0 0 25 0 1 0 181180424 8572928 1141 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134785538 0 0 4096 0 0 0 0 17 1 0 0
/proc/13313/statm: 2093 1141 716 92 0 437 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 8372

[startup+2.97096 s]
/proc/loadavg: 1.93 1.94 1.61 3/73 13314
/proc/meminfo: memFree=1862368/2055920 swapFree=4192812/4192956
[pid=13313] ppid=13311 vsize=8372 CPUtime=2.94
/proc/13313/stat : 13313 (solver) R 13311 13313 11368 0 -1 4194304 1173 0 0 0 294 0 0 0 25 0 1 0 181180424 8572928 1141 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134792840 0 0 4096 0 0 0 0 17 1 0 0
/proc/13313/statm: 2093 1141 716 92 0 437 0
Current children cumulated CPU time (s) 2.94
Current children cumulated vsize (KiB) 8372

[startup+6.25253 s]
/proc/loadavg: 1.93 1.94 1.61 3/73 13314
/proc/meminfo: memFree=1862368/2055920 swapFree=4192812/4192956
[pid=13313] ppid=13311 vsize=8372 CPUtime=6.21
/proc/13313/stat : 13313 (solver) R 13311 13313 11368 0 -1 4194304 1173 0 0 0 621 0 0 0 25 0 1 0 181180424 8572928 1141 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134727371 0 0 4096 0 0 0 0 17 1 0 0
/proc/13313/statm: 2093 1141 716 92 0 437 0
Current children cumulated CPU time (s) 6.21
Current children cumulated vsize (KiB) 8372

Child status: 0
Real time (s): 7.26195
CPU time (s): 7.2259
CPU user time (s): 7.2199
CPU system time (s): 0.005999
CPU usage (%): 99.5036
Max. virtual memory (cumulated for all children) (KiB): 8372

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 7.2199
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= 1185
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= 92

runsolver used 0.006998 s user time and 0.026995 s system time

The end

Launcher Data (download as text)

Begin job on node61 on Tue Jan  9 07:30:26 UTC 2007


IDJOB= 233750
IDBENCH= 6630
FILE ID= node61/233750-1168327825

PBS_JOBID= 3503235

Free space on /tmp= 66516 MiB

BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-7/os-taillard-7-100-9.xml
COMMAND LINE= /tmp/evaluation/233750-1168327825/mistral/bin/solver /tmp/evaluation/233750-1168327825/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node61/watcher-233750-1168327825 -o ROOT/results/node61/solver-233750-1168327825 -C 1800 -M 900  /tmp/evaluation/233750-1168327825/mistral/bin/solver /tmp/evaluation/233750-1168327825/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  c8447009f795ef7e4fc3e22f2417f8c2

RANDOM SEED= 491984988

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		: 3000.259
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		: 3000.259
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:       1864704 kB
Buffers:         11852 kB
Cached:          98852 kB
SwapCached:          0 kB
Active:          88556 kB
Inactive:        51664 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1864704 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2992 kB
Writeback:           0 kB
Mapped:          43156 kB
Slab:            36584 kB
Committed_AS:  4075480 kB
PageTables:       1724 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= 66516 MiB



End job on node61 on Tue Jan  9 07:30:33 UTC 2007