Trace number 1100721

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-prime 1.313SAT 0.448931 0.459431

DiagnosticValue
ASSIGNMENTS417
CHECKS73682

General information on the benchmark

Namecsp/tightness0.9/
normalized-rand-2-40-180-84-900-61_ext.xml
MD5SUM70e6eb0da387933a6a909a0357418c76
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.427934
Satisfiable
(Un)Satisfiability was proved
Number of variables40
Number of constraints84
Maximum constraint arity2
Maximum domain size180
Number of constraints which are defined in extension84
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.18/0.21	c mistral-prime version 1.313
0.39/0.43	s SATISFIABLE
0.39/0.43	v 62 80 72 136 171 104 54 28 53 0 55 64 75 145 90 70 67 116 17 131 60 60 19 90 56 44 59 53 50 64 3 123 142 85 116 9 113 95 14 113
0.39/0.43	d CHECKS 73682
0.39/0.43	d ASSIGNMENTS 417

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.5 (c) roussel@cril.univ-artois.fr

command line: /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1100721-1215287623/watcher-1100721-1215287623 -o /tmp/evaluation-result-1100721-1215287623/solver-1100721-1215287623 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1100721-1215287623.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): 2200 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.92 1.98 1.99 4/72 9755
/proc/meminfo: memFree=1679272/2055920 swapFree=4180688/4192956
[pid=9755] ppid=9753 vsize=816 CPUtime=0
/proc/9755/stat : 9755 (xsolve) R 9753 9755 4057 0 -1 4194304 39 0 0 0 0 0 0 0 19 0 1 0 2007735370 835584 25 996147200 134512640 135237403 4294956240 18446744073709551615 11957028 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/9755/statm: 204 25 19 176 0 3 0

[startup+0.065582 s]
/proc/loadavg: 1.92 1.98 1.99 4/72 9755
/proc/meminfo: memFree=1679272/2055920 swapFree=4180688/4192956
[pid=9755] ppid=9753 vsize=5648 CPUtime=0.05
/proc/9755/stat : 9755 (xsolve) R 9753 9755 4057 0 -1 4194304 714 0 0 0 5 0 0 0 18 0 1 0 2007735370 5783552 680 996147200 134512640 135237403 4294956240 18446744073709551615 134666425 0 0 4096 0 0 0 0 17 1 0 0
/proc/9755/statm: 1412 680 354 176 0 316 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 5648

[startup+0.102579 s]
/proc/loadavg: 1.92 1.98 1.99 4/72 9755
/proc/meminfo: memFree=1679272/2055920 swapFree=4180688/4192956
[pid=9755] ppid=9753 vsize=6452 CPUtime=0.08
/proc/9755/stat : 9755 (xsolve) R 9753 9755 4057 0 -1 4194304 916 0 0 0 8 0 0 0 18 0 1 0 2007735370 6606848 882 996147200 134512640 135237403 4294956240 18446744073709551615 134524400 0 0 4096 0 0 0 0 17 1 0 0
/proc/9755/statm: 1613 882 354 176 0 517 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 6452

[startup+0.301601 s]
/proc/loadavg: 1.92 1.98 1.99 4/72 9755
/proc/meminfo: memFree=1679272/2055920 swapFree=4180688/4192956
[pid=9755] ppid=9753 vsize=11476 CPUtime=0.29
/proc/9755/stat : 9755 (xsolve) R 9753 9755 4057 0 -1 4194304 2210 0 0 0 28 1 0 0 19 0 1 0 2007735370 11751424 2176 996147200 134512640 135237403 4294956240 18446744073709551615 135085350 0 0 4096 0 0 0 0 17 1 0 0
/proc/9755/statm: 2869 2176 397 176 0 1773 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11476

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

[startup+0.402603 s]
/proc/loadavg: 1.92 1.98 1.99 4/72 9755
/proc/meminfo: memFree=1679272/2055920 swapFree=4180688/4192956
[pid=9755] ppid=9753 vsize=11480 CPUtime=0.39
/proc/9755/stat : 9755 (xsolve) R 9753 9755 4057 0 -1 4194304 2211 0 0 0 38 1 0 0 20 0 1 0 2007735370 11755520 2177 996147200 134512640 135237403 4294956240 18446744073709551615 135017001 0 0 4096 0 0 0 0 17 1 0 0
/proc/9755/statm: 2870 2177 397 176 0 1774 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 11480

Child status: 0
Real time (s): 0.459431
CPU time (s): 0.448931
CPU user time (s): 0.435933
CPU system time (s): 0.012998
CPU usage (%): 97.7146
Max. virtual memory (cumulated for all children) (KiB): 11480

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.435933
system time used= 0.012998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2227
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= 7
involuntary context switches= 16

runsolver used 0.002999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node41 at 2008-07-05 21:53:44
IDJOB=1100721
IDBENCH=59965
IDSOLVER=358
FILE ID=node41/1100721-1215287623
PBS_JOBID= 7882163
Free space on /tmp= 66152 MiB

SOLVER NAME= Mistral-prime 1.313
BENCH NAME= CPAI08/csp/tightness0.9/normalized-rand-2-40-180-84-900-61_ext.xml
COMMAND LINE= HOME/xsolve BENCHNAME 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1100721-1215287623/watcher-1100721-1215287623 -o /tmp/evaluation-result-1100721-1215287623/solver-1100721-1215287623 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1100721-1215287623.xml 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 70e6eb0da387933a6a909a0357418c76
RANDOM SEED=76838988

node41.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		: 3000.232
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:       1679752 kB
Buffers:         59868 kB
Cached:         243468 kB
SwapCached:       6540 kB
Active:         204512 kB
Inactive:       117416 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1679752 kB
SwapTotal:     4192956 kB
SwapFree:      4180688 kB
Dirty:            2740 kB
Writeback:           0 kB
Mapped:          25968 kB
Slab:            39836 kB
Committed_AS:  3757096 kB
PageTables:       1720 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= 66152 MiB
End job on node41 at 2008-07-05 21:53:44