Trace number 233234

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
Mistral 2006-12-04SAT 0.836872 0.847675

General information on the benchmark

Nametaillard/os-taillard-20/
os-taillard-20-105-3.xml
MD5SUMaf76b8d5f9d1f307c434b42c9d393cf0
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 benchmark0.804877
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables400
Number of constraints7600
Maximum constraint arity2
Maximum domain size1375
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)

0.23	c 
0.23	c Parsing xml file
0.23	c 	domains............... 0.02
0.23	c 	variables.............    0
0.23	c 	predicates............    0
0.23	c 	constraints........... 0.54
0.58	c Allocating memory
0.58	c 
0.58	c time limit = -1
0.58	c heuristic = dom/wdeg
0.58	c restart policy = No restart
0.58	c 
0.58	c Solving
0.58	c
0.80	s SATISFIABLE
0.80	v 814 465 63 0 262 266 535 383 771 137 930 705 171 866 354 588 225 618 982 274 556 94 279 983 1122 453 435 181 912 662 630 190 788 451 1052 500 0 1148 1235 374 168 117 1125 453 866 343 289 1278 194 735 96 650 938 0 174 468 410 138 531 1042 972 752 543 0 1013 1072 99 1059 686 288 378 1033 1068 873 197 618 466 1046 813 929 656 866 1229 0 1118 180 845 152 580 871 1153 518 80 886 415 435 344 1068 248 725 266 0 97 698 1204 812 972 1172 1148 423 1042 197 517 282 889 574 539 773 615 193 650 529 87 559 1067 1138 171 891 1019 187 930 0 705 282 160 926 469 803 376 70 137 423 1300 919 1235 1136 772 517 213 198 615 160 665 0 354 1078 688 1013 803 283 815 0 938 1100 1287 508 571 971 1136 405 665 370 191 289 794 727 283 259 844 97 195 508 1136 282 373 90 1097 1204 1078 1010 778 588 664 1163 0 170 926 834 415 920 178 0 341 589 850 87 624 710 813 1006 1097 1049 464 688 980 761 405 1255 535 274 872 0 181 117 788 497 378 1228 820 632 773 1155 288 1124 796 166 248 559 731 1005 722 850 535 897 30 772 594 169 474 1163 1071 994 614 934 1033 1176 262 96 1188 376 1125 371 1211 469 594 678 1261 619 998 834 287 723 96 368 929 556 771 0 1064 191 193 1204 0 1059 710 763 365 448 517 282 670 174 95 886 923 752 820 580 848 794 812 444 182 1211 668 555 735 365 597 1153 850 1076 899 346 242 474 80 0 290 959 448 597 670 287 948 796 0 761 383 197 187 982 509 182 87 723 919 195 178 842 778 597 1205 930 205 290 933 0 1171 710 299 51 852 99 1049 518 1288 240 994 97 886 213 948 87 757 624 1204 921 374 229 403 713 543 0 244 457 278 989 162 1062 244 710 912 768 51 343 998 900 549 312 80 90 656 178 0 451 814 1118 373 1248
0.80	d          SAT         0 BTS       0.1 s

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/node43/watcher-233234-1168325085 -o ROOT/results/node43/solver-233234-1168325085 -C 1800 -M 900 /tmp/evaluation/233234-1168325085/mistral/bin/solver /tmp/evaluation/233234-1168325085/unknown.xml -v 1 

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
Current StackSize limit: 10240 KiB

/proc/loadavg: 2.01 1.76 1.69 5/74 24880
/proc/meminfo: memFree=858048/2055920 swapFree=4192812/4192956
[pid=24879] ppid=24877 vsize=18540 CPUtime=0
/proc/24879/stat : 24879 (runsolver) R 24877 24879 24336 0 -1 4194368 16 0 0 0 0 0 0 0 20 0 1 0 180907755 18984960 279 18446744073709551615 4194304 4267372 548682069056 18446744073709551615 216849247527 0 0 4096 24578 0 0 0 17 1 0 0
/proc/24879/statm: 4635 279 244 17 0 2626 0

[startup+0.108863 s]
/proc/loadavg: 2.01 1.76 1.69 5/74 24880
/proc/meminfo: memFree=858048/2055920 swapFree=4192812/4192956
[pid=24879] ppid=24877 vsize=9576 CPUtime=0.09
/proc/24879/stat : 24879 (solver) R 24877 24879 24336 0 -1 4194304 1483 0 0 0 9 0 0 0 18 0 1 0 180907755 9805824 1451 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 4158716952 0 0 4096 0 0 0 0 17 1 0 0
/proc/24879/statm: 2394 1451 707 92 0 738 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 9576

[startup+0.516926 s]
/proc/loadavg: 2.01 1.76 1.69 5/74 24880
/proc/meminfo: memFree=858048/2055920 swapFree=4192812/4192956
[pid=24879] ppid=24877 vsize=11428 CPUtime=0.5
/proc/24879/stat : 24879 (solver) R 24877 24879 24336 0 -1 4194304 1946 0 0 0 50 0 0 0 21 0 1 0 180907755 11702272 1914 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 5220776 0 0 4096 0 0 0 0 17 1 0 0
/proc/24879/statm: 2857 1914 707 92 0 1201 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 11428

Child status: 0
Real time (s): 0.847675
CPU time (s): 0.836872
CPU user time (s): 0.78688
CPU system time (s): 0.049992
CPU usage (%): 98.7256
Max. virtual memory (cumulated for all children) (KiB): 40384

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.78688
system time used= 0.049992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 9195
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= 13
involuntary context switches= 30

runsolver used 0.002999 s user time and 0.006998 s system time

The end

Launcher Data (download as text)

Begin job on node43 on Tue Jan  9 06:44:46 UTC 2007


IDJOB= 233234
IDBENCH= 6588
FILE ID= node43/233234-1168325085

PBS_JOBID= 3502974

Free space on /tmp= 66243 MiB

BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-20/os-taillard-20-105-3.xml
COMMAND LINE= /tmp/evaluation/233234-1168325085/mistral/bin/solver /tmp/evaluation/233234-1168325085/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node43/watcher-233234-1168325085 -o ROOT/results/node43/solver-233234-1168325085 -C 1800 -M 900  /tmp/evaluation/233234-1168325085/mistral/bin/solver /tmp/evaluation/233234-1168325085/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  af76b8d5f9d1f307c434b42c9d393cf0

RANDOM SEED= 770513425

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		: 3000.278
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		: 3000.278
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:        858528 kB
Buffers:         11656 kB
Cached:         386484 kB
SwapCached:          0 kB
Active:        1041432 kB
Inactive:        98192 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        858528 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3980 kB
Writeback:           0 kB
Mapped:         752452 kB
Slab:            41828 kB
Committed_AS:  4909864 kB
PageTables:       3240 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= 66243 MiB



End job on node43 on Tue Jan  9 06:44:47 UTC 2007