Trace number 233160

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
BPrologCSPSolver70a 2006-12-13SAT 0.635903 0.642531

General information on the benchmark

Nametaillard/os-taillard-20/
os-taillard-20-105-7.xml
MD5SUM374810fca23912defb7b4a24b5ed2d7b
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 benchmark0.635903
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables400
Number of constraints7600
Maximum constraint arity2
Maximum domain size1332
Number of constraints which are defined in extension0
Number of constraints which are defined in intension7600
Global constraints used (with number of constraints)

Solver Data (download as text)

0.63	
0.63	Time: 590
0.63	
c 
c 
c 
c solution file
c 
c 

SAT
1145 815 0 1137 474 360 893 223 183 420 929 568 267 857 89 655 740 1209 1291 999 354 891 857 1115 657 97 772 1244 951 997 580 296 0 1093 342 702 53 198 541 449 53 588 420 228 650 870 1015 98 483 612 189 0 84 544 969 299 813 1227 1062 1112 166 567 301 1025 1198 435 0 98 636 274 855 381 221 711 806 1079 1106 507 206 942 609 99 228 495 961 1116 355 903 1079 541 241 658 697 185 0 836 205 1209 286 420 743 1061 298 1186 663 597 401 0 96 345 958 1290 194 50 495 99 844 207 1093 433 1017 890 986 516 659 940 439 0 1045 588 189 274 1066 837 1080 780 357 1093 722 99 891 298 760 97 1062 1123 645 696 324 286 0 394 360 801 997 951 486 183 566 206 401 1230 1148 1060 91 319 284 416 918 908 0 354 207 138 999 752 252 638 170 828 0 705 969 743 350 516 139 997 1273 1219 612 179 194 918 800 84 309 1129 228 437 319 357 189 711 241 352 645 0 486 99 997 567 896 940 916 846 1045 443 345 780 907 189 533 411 1054 993 194 767 452 348 1108 0 89 428 253 636 696 1075 1222 854 84 1271 718 794 1062 609 0 503 350 985 99 916 198 420 813 756 536 450 253 79 518 934 324 722 443 241 970 184 855 801 890 342 1093 301 658 345 588 99 0 416 903 673 360 507 194 411 241 195 705 68 99 0 252 1075 319 1170 566 872 1015 602 348 934 752 791 580 640 221 695 685 837 534 99 828 184 437 0 308 883 166 1005 284 267 0 985 1122 808 205 138 450 1209 623 774 418 82 921 1106 1060 250 659 496 439 185 702 863 381 91 970 1066 1118 602 0 275 756 71 536 258 681 918 228 1209 815 0 1148 767 614 485 1115 157 1002 297 1098 893 179 391 139 951 89 1128 308 267 452 1222 262 564 534 0 1054 183 685 974 394 97 1031 518 449 296 870 481 239 1129 
c 
c 
c 
c conversion script
c 
c 

converting(/tmp/evaluation/233160-1168324882/unknown)

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/node45/watcher-233160-1168324882 -o ROOT/results/node45/solver-233160-1168324882 -C 1800 -M 900 /tmp/evaluation/233160-1168324882/Complete/Ordinary/solver /tmp/evaluation/233160-1168324882/unknown 1800 

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
/proc/loadavg: 2.27 2.01 1.58 4/73 19226
/proc/meminfo: memFree=1450432/2055920 swapFree=4184048/4192956
[pid=19225] ppid=19223 vsize=18540 CPUtime=0
/proc/19225/stat : 19225 (runsolver) R 19223 19145 19145 0 -1 4194368 6 0 0 0 0 0 0 0 21 0 1 0 180887586 18984960 277 18446744073709551615 4194304 4267372 548682069056 18446744073709551615 258947962967 0 0 4096 24578 0 0 0 17 1 0 0
/proc/19225/statm: 4635 277 242 17 0 2626 0
Current StackSize limit: 10240 KiB


[startup+0.107256 s]
/proc/loadavg: 2.27 2.01 1.58 4/73 19226
/proc/meminfo: memFree=1450432/2055920 swapFree=4184048/4192956
[pid=19225] ppid=19223 vsize=53824 CPUtime=0.09
/proc/19225/stat : 19225 (bprolog) R 19223 19225 19145 0 -1 4194304 2367 0 0 0 9 0 0 0 22 0 1 0 180887586 55115776 2083 18446744073709551615 134512640 134884608 4294956576 18446744073709551615 134560549 0 0 4096 2 0 0 0 17 1 0 0
/proc/19225/statm: 13456 2083 158 90 0 12994 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 53824

[startup+0.51533 s]
/proc/loadavg: 2.27 2.01 1.58 4/73 19226
/proc/meminfo: memFree=1450432/2055920 swapFree=4184048/4192956
[pid=19225] ppid=19223 vsize=66220 CPUtime=0.5
/proc/19225/stat : 19225 (bprolog) R 19223 19225 19145 0 -1 4194304 4415 0 0 0 48 2 0 0 25 0 1 0 180887586 67809280 4128 18446744073709551615 134512640 134884608 4294956576 18446744073709551615 134563124 0 0 4096 2 0 0 0 17 1 0 0
/proc/19225/statm: 16555 4128 163 90 0 16093 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 66220

Child status: 0
Real time (s): 0.642531
CPU time (s): 0.635903
CPU user time (s): 0.603908
CPU system time (s): 0.031995
CPU usage (%): 98.9685
Max. virtual memory (cumulated for all children) (KiB): 76464

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.603908
system time used= 0.031995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6193
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= 8
involuntary context switches= 20

runsolver used 0.003999 s user time and 0.003999 s system time

The end

Launcher Data (download as text)

Begin job on node45 on Tue Jan  9 06:41:22 UTC 2007


IDJOB= 233160
IDBENCH= 6585
FILE ID= node45/233160-1168324882

PBS_JOBID= 3502971

Free space on /tmp= 66550 MiB

BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-20/os-taillard-20-105-7.xml
COMMAND LINE= /tmp/evaluation/233160-1168324882/Complete/Ordinary/solver /tmp/evaluation/233160-1168324882/unknown 1800
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node45/convwatcher-233160-1168324882 -o ROOT/results/node45/conversion-233160-1168324882 -C 600 -M 900 /tmp/evaluation/233160-1168324882/Complete/Ordinary/conversion /tmp/evaluation/233160-1168324882/unknown
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node45/watcher-233160-1168324882 -o ROOT/results/node45/solver-233160-1168324882 -C 1800 -M 900  /tmp/evaluation/233160-1168324882/Complete/Ordinary/solver /tmp/evaluation/233160-1168324882/unknown 1800

META MD5SUM SOLVER= b53ab06f245aa5e62684a7a0a4388ade
MD5SUM BENCH=  374810fca23912defb7b4a24b5ed2d7b

RANDOM SEED= 249994639

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		: 3000.259
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		: 3000.259
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:       1450912 kB
Buffers:         68908 kB
Cached:         431668 kB
SwapCached:       3168 kB
Active:         200108 kB
Inactive:       345804 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1450912 kB
SwapTotal:     4192956 kB
SwapFree:      4184048 kB
Dirty:            3112 kB
Writeback:           0 kB
Mapped:          54296 kB
Slab:            44440 kB
Committed_AS:  3764156 kB
PageTables:       1768 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= 66549 MiB



End job on node45 on Tue Jan  9 06:41:27 UTC 2007