Trace number 198230

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 0.036993 0.0410031

General information on the benchmark

NamejobShop/jobShop-enddr1/
enddr1-10-by-5-5.xml
MD5SUM0e353521ab1c882a98d5982965ca54e5
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 benchmark0.036993
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables50
Number of constraints265
Maximum constraint arity2
Maximum domain size129
Number of constraints which are defined in extension0
Number of constraints which are defined in intension265
Global constraints used (with number of constraints)

Solver Data (download as text)

0.01	c 
0.01	c Parsing xml file
0.01	c 	domains...............    0
0.01	c 	variables.............    0
0.01	c 	predicates............    0
0.01	c 	constraints........... 0.02
0.03	c Allocating memory
0.03	c 
0.03	c time limit = -1
0.03	c heuristic = dom/wdeg
0.03	c restart policy = No restart
0.03	c 
0.03	c Solving
0.03	c
0.03	s SATISFIABLE
0.03	v 50 76 116 127 135 44 73 85 96 106 0 26 33 130 151 115 120 129 141 149 82 86 107 116 143 17 20 47 118 129 79 93 96 107 115 19 63 73 85 93 9 55 63 71 76 0 9 17 33 44
0.03	d          SAT         0 BTS         0 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/node52/watcher-198230-1168713473 -o ROOT/results/node52/solver-198230-1168713473 -C 1800 -M 900 /tmp/evaluation/198230-1168713473/mistral/bin/solver /tmp/evaluation/198230-1168713473/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: 1.00 1.00 1.04 3/74 17053
/proc/meminfo: memFree=1570368/2055920 swapFree=4192812/4192956
[pid=17052] ppid=17050 vsize=6792 CPUtime=0
/proc/17052/stat : 17052 (solver) R 17050 17052 16735 0 -1 4194304 421 0 0 0 0 0 0 0 18 0 1 0 219746133 6955008 400 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 4279160 0 0 4096 0 0 0 0 17 1 0 0
/proc/17052/statm: 1698 400 363 92 0 30 0

Child status: 0
Real time (s): 0.0410031
CPU time (s): 0.036993
CPU user time (s): 0.027995
CPU system time (s): 0.008998
CPU usage (%): 90.2201
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.027995
system time used= 0.008998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 957
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= 60

runsolver used 0.001999 s user time and 0.007998 s system time

The end

Launcher Data (download as text)

Begin job on node52 on Sat Jan 13 18:37:55 UTC 2007


IDJOB= 198230
IDBENCH= 3542
IDSOLVER= 84
FILE ID= node52/198230-1168713473

PBS_JOBID= 3547316

Free space on /tmp= 66558 MiB

SOLVER NAME= Mistral 2006-12-04
BENCH NAME= HOME/pub/bench/CPAI06/jobShop/jobShop-enddr1/enddr1-10-by-5-5.xml
COMMAND LINE= /tmp/evaluation/198230-1168713473/mistral/bin/solver /tmp/evaluation/198230-1168713473/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node52/watcher-198230-1168713473 -o ROOT/results/node52/solver-198230-1168713473 -C 1800 -M 900  /tmp/evaluation/198230-1168713473/mistral/bin/solver /tmp/evaluation/198230-1168713473/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  0e353521ab1c882a98d5982965ca54e5

RANDOM SEED= 865101284

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		: 3000.232
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		: 3000.232
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:       1570848 kB
Buffers:         27328 kB
Cached:         366868 kB
SwapCached:          0 kB
Active:          82316 kB
Inactive:       344632 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1570848 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3044 kB
Writeback:           0 kB
Mapped:          44040 kB
Slab:            43384 kB
Committed_AS:  5146904 kB
PageTables:       1908 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= 66558 MiB



End job on node52 on Sat Jan 13 18:37:59 UTC 2007