Trace number 2087566

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
pcs-restart 0.3.2SAT 0.52092 0.529466

DiagnosticValue
ASSIGNMENTS44

General information on the benchmark

Namecsp/os-taillard-10/
normalized-os-taillard-10-105-5.xml
MD5SUMfbb6506a8ee0a1011f326a71c66351cb
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 benchmark0.308952
Satisfiable
(Un)Satisfiability was proved
Number of variables100
Number of constraints900
Maximum constraint arity2
Maximum domain size565
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 

0.00/0.01	c has big domains
0.00/0.01	c big-domain mode
0.00/0.11	c Seed is 172067650
0.00/0.11	c Constructing HOME/instance-2087566-1247727829.xml  with 6300 constraints
0.00/0.11	c Solving 44 backtracks 2 restarts
0.47/0.52	s SATISFIABLE
0.47/0.52	c V0=85, V1=275, V2=345, V3=311, V4=473, V5=128, V6=138, V7=220, V8=446, V9=0, V10=323, V11=153, V12=267, V13=74, V14=344, V15=47, V16=132, V17=433, V18=222, V19=394, V20=232, V21=512, V22=307, V23=323, V24=85, V25=266, V26=0, V27=429, V28=141, V29=33, V30=132, V31=217, V32=468, V33=359, V34=527, V35=267, V36=292, V37=41, V38=10, V39=459, V40=448, V41=179, V42=85, V43=222, V44=57, V45=421, V46=0, V47=394, V48=478, V49=312, V50=389, V51=248, V52=132, V53=0, V54=160, V55=321, V56=213, V57=63, V58=490, V59=363, V60=510, V61=74, V62=138, V63=377, V64=443, V65=560, V66=284, V67=0, V68=232, V69=33, V70=10, V71=226, V72=179, V73=339, V74=58, V75=257, V76=95, V77=519, V78=539, V79=423, V80=227, V81=428, V82=95, V83=261, V84=409, V85=155, V86=312, V87=0, V88=311, V89=124, V90=187, V91=530, V92=0, V93=267, V94=366, V95=350, V96=34, V97=428, V98=85, V99=458, 
0.47/0.52	v 85 275 345 311 473 128 138 220 446 0 323 153 267 74 344 47 132 433 222 394 232 512 307 323 85 266 0 429 141 33 132 217 468 359 527 267 292 41 10 459 448 179 85 222 57 421 0 394 478 312 389 248 132 0 160 321 213 63 490 363 510 74 138 377 443 560 284 0 232 33 10 226 179 339 58 257 95 519 539 423 227 428 95 261 409 155 312 0 311 124 187 530 0 267 366 350 34 428 85 458 
0.47/0.52	d ASSIGNMENTS 44

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-2087566-1247727829/watcher-2087566-1247727829 -o /tmp/evaluation-result-2087566-1247727829/solver-2087566-1247727829 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 172067650 HOME/instance-2087566-1247727829.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: 1.93 2.04 2.01 4/81 9797
/proc/meminfo: memFree=1306056/2055920 swapFree=4192812/4192956
[pid=9797] ppid=9795 vsize=18576 CPUtime=0
/proc/9797/stat : 9797 (runsolver) R 9795 9797 8865 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 59849463 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 273952599335 0 0 4096 24578 0 0 0 17 1 0 0
/proc/9797/statm: 4644 284 249 26 0 2626 0

[startup+0.232682 s]
/proc/loadavg: 1.93 2.04 2.01 4/81 9797
/proc/meminfo: memFree=1306056/2055920 swapFree=4192812/4192956
[pid=9797] ppid=9795 vsize=10212 CPUtime=0.21
/proc/9797/stat : 9797 (pcs.big) R 9795 9797 8865 0 -1 4194304 2525 659 0 0 20 1 0 0 19 0 1 0 59849463 10457088 1660 996147200 134512640 135215973 4294956304 18446744073709551615 134599877 0 0 4096 0 0 0 0 17 1 0 0
/proc/9797/statm: 2553 1660 406 171 0 1478 0
Current children cumulated CPU time (s) 0.21
Current children cumulated vsize (KiB) 10212

[startup+0.301691 s]
/proc/loadavg: 1.93 2.04 2.01 4/81 9797
/proc/meminfo: memFree=1306056/2055920 swapFree=4192812/4192956
[pid=9797] ppid=9795 vsize=10212 CPUtime=0.27
/proc/9797/stat : 9797 (pcs.big) R 9795 9797 8865 0 -1 4194304 2533 659 0 0 26 1 0 0 19 0 1 0 59849463 10457088 1668 996147200 134512640 135215973 4294956304 18446744073709551615 135094939 0 0 4096 0 0 0 0 17 1 0 0
/proc/9797/statm: 2553 1668 406 171 0 1478 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 10212

[startup+0.401701 s]
/proc/loadavg: 1.93 2.04 2.01 4/81 9797
/proc/meminfo: memFree=1306056/2055920 swapFree=4192812/4192956
[pid=9797] ppid=9795 vsize=10212 CPUtime=0.37
/proc/9797/stat : 9797 (pcs.big) R 9795 9797 8865 0 -1 4194304 2538 659 0 0 36 1 0 0 20 0 1 0 59849463 10457088 1673 996147200 134512640 135215973 4294956304 18446744073709551615 134610603 0 0 4096 0 0 0 0 17 1 0 0
/proc/9797/statm: 2553 1673 406 171 0 1478 0
Current children cumulated CPU time (s) 0.37
Current children cumulated vsize (KiB) 10212

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

[startup+0.501713 s]
/proc/loadavg: 1.93 2.04 2.01 4/81 9797
/proc/meminfo: memFree=1306056/2055920 swapFree=4192812/4192956
[pid=9797] ppid=9795 vsize=10212 CPUtime=0.47
/proc/9797/stat : 9797 (pcs.big) R 9795 9797 8865 0 -1 4194304 2539 659 0 0 46 1 0 0 21 0 1 0 59849463 10457088 1674 996147200 134512640 135215973 4294956304 18446744073709551615 134532930 0 0 4096 0 0 0 0 17 1 0 0
/proc/9797/statm: 2553 1674 406 171 0 1478 0
Current children cumulated CPU time (s) 0.47
Current children cumulated vsize (KiB) 10212

Child status: 0
Real time (s): 0.529466
CPU time (s): 0.52092
CPU user time (s): 0.495924
CPU system time (s): 0.024996
CPU usage (%): 98.3859
Max. virtual memory (cumulated for all children) (KiB): 10212

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.495924
system time used= 0.024996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3244
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= 21
involuntary context switches= 29

runsolver used 0.006998 second user time and 0.002999 second system time

The end

Launcher Data 

Begin job on node20 at 2009-07-16 09:03:49
IDJOB=2087566
IDBENCH=58743
IDSOLVER=734
FILE ID=node20/2087566-1247727829
PBS_JOBID= 9521579
Free space on /tmp= 66296 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/os-taillard-10/normalized-os-taillard-10-105-5.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2087566-1247727829/watcher-2087566-1247727829 -o /tmp/evaluation-result-2087566-1247727829/solver-2087566-1247727829 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 172067650 HOME/instance-2087566-1247727829.xml

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

MD5SUM BENCH= fbb6506a8ee0a1011f326a71c66351cb
RANDOM SEED=172067650

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:       1306536 kB
Buffers:         91252 kB
Cached:         534756 kB
SwapCached:          0 kB
Active:         157120 kB
Inactive:       502052 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1306536 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2280 kB
Writeback:           0 kB
Mapped:          53596 kB
Slab:            75328 kB
Committed_AS:   492640 kB
PageTables:       1892 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= 66296 MiB
End job on node20 at 2009-07-16 09:03:49