Trace number 235538

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 2.12568 2.14997

General information on the benchmark

Nametaillard/os-taillard-10/
os-taillard-10-100-5.xml
MD5SUMb441aa0fb65ae62982067745281981f0
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 benchmark0.402938
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables100
Number of constraints900
Maximum constraint arity2
Maximum domain size538
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)

0.11	c 
0.11	c Parsing xml file
0.11	c 	domains...............    0
0.11	c 	variables.............    0
0.11	c 	predicates............    0
0.11	c 	constraints........... 0.06
0.11	c Allocating memory
0.11	c 
0.11	c time limit = -1
0.11	c heuristic = dom/wdeg
0.11	c restart policy = No restart
0.11	c 
0.11	c Solving
0.11	c
2.14	s SATISFIABLE
2.14	v 156 238 459 203 275 146 27 109 0 377 88 469 333 16 389 0 235 109 278 206 514 88 72 235 26 484 0 420 144 334 203 345 144 376 492 323 244 53 9 0 357 411 151 259 0 389 17 54 63 461 377 461 245 260 27 349 330 93 170 0 213 420 52 151 278 146 345 245 0 484 244 213 483 399 362 275 148 93 67 0 514 420 399 330 311 192 162 53 52 8 412 377 367 318 256 243 192 162 72 0
2.14	d          SAT     26379 BTS         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/node4/watcher-235538-1168338364 -o ROOT/results/node4/solver-235538-1168338364 -C 1800 -M 900 /tmp/evaluation/235538-1168338364/mistral/bin/solver /tmp/evaluation/235538-1168338364/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: 1.94 2.06 2.02 5/86 32634
/proc/meminfo: memFree=1002864/2055920 swapFree=4182144/4192956
[pid=32633] ppid=32631 vsize=540 CPUtime=0
/proc/32633/stat : 32633 (solver) R 32631 32633 31596 0 -1 4194304 41 0 0 0 0 0 0 0 19 0 1 0 182232093 552960 26 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 10588964 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/32633/statm: 135 26 21 92 0 18 0

[startup+0.103939 s]
/proc/loadavg: 1.94 2.06 2.02 5/86 32634
/proc/meminfo: memFree=1002864/2055920 swapFree=4182144/4192956
[pid=32633] ppid=32631 vsize=10492 CPUtime=0.08
/proc/32633/stat : 32633 (solver) R 32631 32633 31596 0 -1 4194304 1723 0 0 0 8 0 0 0 19 0 1 0 182232093 10743808 1691 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 11883697 0 0 4096 0 0 0 0 17 1 0 0
/proc/32633/statm: 2623 1691 711 92 0 967 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 10492

[startup+0.511968 s]
/proc/loadavg: 1.94 2.06 2.02 5/86 32634
/proc/meminfo: memFree=1002864/2055920 swapFree=4182144/4192956
[pid=32633] ppid=32631 vsize=11700 CPUtime=0.49
/proc/32633/stat : 32633 (solver) R 32631 32633 31596 0 -1 4194304 2033 0 0 0 49 0 0 0 23 0 1 0 182232093 11980800 2001 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134715230 0 0 4096 0 0 0 0 17 1 0 0
/proc/32633/statm: 2925 2001 716 92 0 1269 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 11700

[startup+1.33305 s]
/proc/loadavg: 1.94 2.05 2.02 3/86 32634
/proc/meminfo: memFree=987888/2055920 swapFree=4182144/4192956
[pid=32633] ppid=32631 vsize=11700 CPUtime=1.3
/proc/32633/stat : 32633 (solver) R 32631 32633 31596 0 -1 4194304 2033 0 0 0 130 0 0 0 25 0 1 0 182232093 11980800 2001 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134727362 0 0 4096 0 0 0 0 17 1 0 0
/proc/32633/statm: 2925 2001 716 92 0 1269 0
Current children cumulated CPU time (s) 1.3
Current children cumulated vsize (KiB) 11700

Child status: 0
Real time (s): 2.14997
CPU time (s): 2.12568
CPU user time (s): 2.11868
CPU system time (s): 0.006998
CPU usage (%): 98.8702
Max. virtual memory (cumulated for all children) (KiB): 11700

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.11868
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= 2050
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= 96

runsolver used 0.006998 s user time and 0.007998 s system time

The end

Launcher Data (download as text)

Begin job on node4 on Tue Jan  9 10:26:05 UTC 2007


IDJOB= 235538
IDBENCH= 6776
FILE ID= node4/235538-1168338364

PBS_JOBID= 3503138

Free space on /tmp= 66529 MiB

BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-10/os-taillard-10-100-5.xml
COMMAND LINE= /tmp/evaluation/235538-1168338364/mistral/bin/solver /tmp/evaluation/235538-1168338364/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node4/watcher-235538-1168338364 -o ROOT/results/node4/solver-235538-1168338364 -C 1800 -M 900  /tmp/evaluation/235538-1168338364/mistral/bin/solver /tmp/evaluation/235538-1168338364/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  b441aa0fb65ae62982067745281981f0

RANDOM SEED= 663243140

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		: 3000.223
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		: 3000.223
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:       1008720 kB
Buffers:         57364 kB
Cached:         233860 kB
SwapCached:       2060 kB
Active:         774444 kB
Inactive:       210736 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1008720 kB
SwapTotal:     4192956 kB
SwapFree:      4182144 kB
Dirty:            3572 kB
Writeback:           0 kB
Mapped:         704684 kB
Slab:            45472 kB
Committed_AS:  6116072 kB
PageTables:       3624 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= 66529 MiB



End job on node4 on Tue Jan  9 10:26:08 UTC 2007