Trace number 2076639

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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 1.545SAT 0.009998 0.0172951

DiagnosticValue
ASSIGNMENTS19
CHECKS2238
NODES19

General information on the benchmark

Namecsp/os-taillard-4/
normalized-os-taillard-4-105-7.xml
MD5SUM07eb82fbe4d551bec8ed07e027a93a3f
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 benchmark0.009998
Satisfiable
(Un)Satisfiability was proved
Number of variables16
Number of constraints48
Maximum constraint arity2
Maximum domain size225
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 

0.00/0.01	c mistral version 1.545
0.00/0.01	s SATISFIABLE
0.00/0.01	v 0 208 95 194 0 208 106 127 76 219 194 15 219 76 29 127
0.00/0.01	d CHECKS 2238
0.00/0.01	d ASSIGNMENTS 19
0.00/0.01	d NODES 19 BACKTRACKS 0 FAILURES 0 RUNTIME 0 TOTALTIME 0 NODES/s 1900 CHECKS/s 0

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2076639-1247362995/watcher-2076639-1247362995 -o /tmp/evaluation-result-2076639-1247362995/solver-2076639-1247362995 -C 1800 -W 2000 -M 900 /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2076639-1247362995.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2000 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


[startup+0 s]
/proc/loadavg: 1.81 2.14 2.15 4/82 16189
/proc/meminfo: memFree=1719712/2055920 swapFree=4192812/4192956
[pid=16189] ppid=16187 vsize=18576 CPUtime=0
/proc/16189/stat : 16189 (runsolver) R 16187 16189 14276 0 -1 4194368 15 0 0 0 0 0 0 0 21 0 1 0 23366100 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 273952599335 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/16189/statm: 4644 284 249 26 0 2626 0

Solver just ended. Dumping a history of the last processes samples

Child status: 0
Real time (s): 0.0172951
CPU time (s): 0.009998
CPU user time (s): 0.005999
CPU system time (s): 0.003999
CPU usage (%): 57.8082
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.005999
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 566
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= 24
involuntary context switches= 0

runsolver used 0.003999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node20 at 2009-07-12 03:43:15
IDJOB=2076639
IDBENCH=56473
IDSOLVER=769
FILE ID=node20/2076639-1247362995
PBS_JOBID= 9506914
Free space on /tmp= 66280 MiB

SOLVER NAME= Mistral 1.545
BENCH NAME= CPAI08/csp/os-taillard-4/normalized-os-taillard-4-105-7.xml
COMMAND LINE= /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2076639-1247362995/watcher-2076639-1247362995 -o /tmp/evaluation-result-2076639-1247362995/solver-2076639-1247362995 -C 1800 -W 2000 -M 900  /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2076639-1247362995.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 07eb82fbe4d551bec8ed07e027a93a3f
RANDOM SEED=978994084

node20.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.236
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		: 3000.236
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:       1720192 kB
Buffers:         27372 kB
Cached:          87888 kB
SwapCached:          0 kB
Active:         251884 kB
Inactive:        37372 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1720192 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1560 kB
Writeback:           0 kB
Mapped:         194448 kB
Slab:            31348 kB
Committed_AS:   387316 kB
PageTables:       2208 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= 66280 MiB
End job on node20 at 2009-07-12 03:43:15