Trace number 2087643

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 0.669897 0.680966

DiagnosticValue
ASSIGNMENTS151

General information on the benchmark

Namecsp/os-taillard-10/
normalized-os-taillard-10-100-5.xml
MD5SUM6c761f2e70540da1064cf50838161a2c
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 benchmark0.508921
Satisfiable
(Un)Satisfiability was proved
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 

0.00/0.01	c has big domains
0.00/0.01	c big-domain mode
0.00/0.02	c Seed is 1638821494
0.00/0.02	c Constructing HOME/instance-2087643-1247728129.xml  with 6300 constraints
0.07/0.11	c Solving 151 backtracks 4 restarts
0.57/0.68	s SATISFIABLE
0.57/0.68	c V0=443, V1=215, V2=358, V3=502, V4=266, V5=205, V6=64, V7=0, V8=475, V9=123, V10=50, V11=136, V12=80, V13=352, V14=0, V15=335, V16=420, V17=205, V18=436, V19=503, V20=352, V21=299, V22=355, V23=377, V24=58, V25=123, V26=50, V27=0, V28=175, V29=481, V30=470, V31=505, V32=239, V33=371, V34=201, V35=175, V36=302, V37=84, V38=49, V39=186, V40=394, V41=131, V42=174, V43=0, V44=377, V45=355, V46=94, V47=414, V48=268, V49=429, V50=0, V51=208, V52=427, V53=112, V54=502, V55=473, V56=171, V57=358, V58=283, V59=84, V60=335, V61=0, V62=414, V63=208, V64=141, V65=519, V66=260, V67=67, V68=358, V69=100, V70=506, V71=469, V72=71, V73=215, V74=381, V75=299, V76=136, V77=423, V78=443, V79=0, V80=205, V81=0, V82=355, V83=473, V84=149, V85=406, V86=100, V87=239, V88=537, V89=108, V90=0, V91=420, V92=410, V93=455, V94=131, V95=110, V96=355, V97=499, V98=193, V99=283, 
0.57/0.68	v 443 215 358 502 266 205 64 0 475 123 50 136 80 352 0 335 420 205 436 503 352 299 355 377 58 123 50 0 175 481 470 505 239 371 201 175 302 84 49 186 394 131 174 0 377 355 94 414 268 429 0 208 427 112 502 473 171 358 283 84 335 0 414 208 141 519 260 67 358 100 506 469 71 215 381 299 136 423 443 0 205 0 355 473 149 406 100 239 537 108 0 420 410 455 131 110 355 499 193 283 
0.57/0.68	d ASSIGNMENTS 151

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-2087643-1247728129/watcher-2087643-1247728129 -o /tmp/evaluation-result-2087643-1247728129/solver-2087643-1247728129 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1638821494 HOME/instance-2087643-1247728129.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: 2.00 2.00 2.00 4/81 14992
/proc/meminfo: memFree=1572736/2055920 swapFree=4192812/4192956
[pid=14992] ppid=14990 vsize=5356 CPUtime=0
/proc/14992/stat : 14992 (pcssolve) R 14990 14992 14387 0 -1 4194304 290 0 0 0 0 0 0 0 21 0 1 0 59879390 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 221236488863 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/14992/statm: 1339 241 200 169 0 50 0
[pid=14993] ppid=14992 vsize=200 CPUtime=0
/proc/14993/stat : 14993 (fgrep) R 14992 14992 14387 0 -1 4194304 46 0 0 0 0 0 0 0 22 0 1 0 59879391 204800 24 996147200 4194304 4274172 548682068976 18446744073709551615 221233870101 0 0 4096 0 0 0 0 17 1 0 0
/proc/14993/statm: 50 24 17 19 0 4 0
[pid=14994] ppid=14992 vsize=5356 CPUtime=0
/proc/14994/stat : 14994 (pcssolve) R 14992 14992 14387 0 -1 4194368 0 0 0 0 0 0 0 0 21 0 1 0 59879391 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 221236488863 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/14994/statm: 1339 241 200 169 0 50 0

[startup+0.0828239 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 14992
/proc/meminfo: memFree=1572736/2055920 swapFree=4192812/4192956
[pid=14992] ppid=14990 vsize=6168 CPUtime=0.06
/proc/14992/stat : 14992 (pcs.big) R 14990 14992 14387 0 -1 4194304 1177 659 0 0 6 0 0 0 23 0 1 0 59879390 6316032 775 996147200 134512640 135215973 4294956304 18446744073709551615 8904317 0 0 4096 0 0 0 0 17 1 0 0
/proc/14992/statm: 1542 775 388 171 0 467 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 6168

[startup+0.101823 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 14992
/proc/meminfo: memFree=1572736/2055920 swapFree=4192812/4192956
[pid=14992] ppid=14990 vsize=6480 CPUtime=0.07
/proc/14992/stat : 14992 (pcs.big) R 14990 14992 14387 0 -1 4194304 1292 659 0 0 7 0 0 0 23 0 1 0 59879390 6635520 849 996147200 134512640 135215973 4294956304 18446744073709551615 4159050002 0 0 4096 0 0 0 0 17 1 0 0
/proc/14992/statm: 1620 849 388 171 0 545 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 6480

[startup+0.301848 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 14992
/proc/meminfo: memFree=1572736/2055920 swapFree=4192812/4192956
[pid=14992] ppid=14990 vsize=8980 CPUtime=0.28
/proc/14992/stat : 14992 (pcs.big) R 14990 14992 14387 0 -1 4194304 2088 659 0 0 27 1 0 0 25 0 1 0 59879390 9195520 1432 996147200 134512640 135215973 4294956304 18446744073709551615 134904497 0 0 4096 0 0 0 0 17 1 0 0
/proc/14992/statm: 2245 1432 406 171 0 1170 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 8980

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

[startup+0.501871 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 14992
/proc/meminfo: memFree=1572736/2055920 swapFree=4192812/4192956
[pid=14992] ppid=14990 vsize=8980 CPUtime=0.48
/proc/14992/stat : 14992 (pcs.big) R 14990 14992 14387 0 -1 4194304 2163 659 0 0 47 1 0 0 25 0 1 0 59879390 9195520 1507 996147200 134512640 135215973 4294956304 18446744073709551615 134591967 0 0 4096 0 0 0 0 17 1 0 0
/proc/14992/statm: 2245 1507 406 171 0 1170 0
Current children cumulated CPU time (s) 0.48
Current children cumulated vsize (KiB) 8980

[startup+0.601882 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 14992
/proc/meminfo: memFree=1572736/2055920 swapFree=4192812/4192956
[pid=14992] ppid=14990 vsize=11044 CPUtime=0.57
/proc/14992/stat : 14992 (pcs.big) R 14990 14992 14387 0 -1 4194304 2413 659 0 0 56 1 0 0 25 0 1 0 59879390 11309056 1757 996147200 134512640 135215973 4294956304 18446744073709551615 8873595 0 0 4096 0 0 0 0 17 1 0 0
/proc/14992/statm: 2761 1757 406 171 0 1686 0
Current children cumulated CPU time (s) 0.57
Current children cumulated vsize (KiB) 11044

Child status: 0
Real time (s): 0.680966
CPU time (s): 0.669897
CPU user time (s): 0.647901
CPU system time (s): 0.021996
CPU usage (%): 98.3745
Max. virtual memory (cumulated for all children) (KiB): 11044

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.647901
system time used= 0.021996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3289
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= 38

runsolver used 0.001999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node21 at 2009-07-16 09:08:49
IDJOB=2087643
IDBENCH=58765
IDSOLVER=734
FILE ID=node21/2087643-1247728129
PBS_JOBID= 9521483
Free space on /tmp= 66324 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/os-taillard-10/normalized-os-taillard-10-100-5.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2087643-1247728129/watcher-2087643-1247728129 -o /tmp/evaluation-result-2087643-1247728129/solver-2087643-1247728129 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1638821494 HOME/instance-2087643-1247728129.xml

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

MD5SUM BENCH= 6c761f2e70540da1064cf50838161a2c
RANDOM SEED=1638821494

node21.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		: 3000.240
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		: 3000.240
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:       1573216 kB
Buffers:         75668 kB
Cached:         297312 kB
SwapCached:          0 kB
Active:         111888 kB
Inactive:       294752 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1573216 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2052 kB
Writeback:           0 kB
Mapped:          54060 kB
Slab:            61156 kB
Committed_AS:   504272 kB
PageTables:       1860 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= 66324 MiB
End job on node21 at 2009-07-16 09:08:50