Trace number 1094020

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
bpsolver 2008-06-27SAT 0.248961 0.254984

General information on the benchmark

Namecsp/os-taillard-10/
normalized-os-taillard-10-105-8.xml
MD5SUMed927f81d90ae14bcb11eda3eb5fc524
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 benchmark0.248961
Satisfiable
(Un)Satisfiability was proved
Number of variables100
Number of constraints900
Maximum constraint arity2
Maximum domain size625
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 (download as text)

0.00/0.02	c bpsolver version 6.27.2008
0.00/0.02	c converting(HOME/instance-1094020-1215278827)
0.00/0.18	c Converted in 79 ms
0.00/0.18	c solving(HOME/instance-1094020-1215278827,1800000)
0.19/0.25	c (ff_inout)
0.19/0.25	s SATISFIABLE
0.19/0.25	v 113 463 178 286 0 197 382 74 532 129 514 281 188 78 0 444 296 156 364 537 86 368 411 344 537 433 197 483 0 263 529 460 187 263 281 494 333 362 96 0 364 78 178 482 286 268 442 54 0 97 0 289 99 532 268 356 460 333 197 390 442 86 483 0 514 368 575 197 283 99 565 411 254 184 98 349 66 90 468 0 283 188 197 225 532 129 374 0 90 468 410 96 485 178 0 296 349 575 534 268 
0.19/0.25	
0.19/0.25	c Time=65 ms
0.19/0.25

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-1094020-1215278827/watcher-1094020-1215278827 -o /tmp/evaluation-result-1094020-1215278827/solver-1094020-1215278827 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/solver HOME/instance-1094020-1215278827 1800 

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: 2.01 2.09 2.05 4/85 2485
/proc/meminfo: memFree=1355904/2055920 swapFree=4180000/4192956
[pid=2485] ppid=2483 vsize=4780 CPUtime=0
/proc/2485/stat : 2485 (bprolog) R 2483 2485 1367 0 -1 4194304 621 0 0 0 0 0 0 0 20 0 1 0 260870679 4894720 339 996147200 134512640 134990860 4294956096 18446744073709551615 134530855 0 0 4096 0 0 0 0 17 0 0 0
/proc/2485/statm: 1195 339 72 116 0 706 0

[startup+0.197746 s]
/proc/loadavg: 2.01 2.09 2.05 4/85 2485
/proc/meminfo: memFree=1355904/2055920 swapFree=4180000/4192956
[pid=2485] ppid=2483 vsize=56076 CPUtime=0.19
/proc/2485/stat : 2485 (bprolog) R 2483 2485 1367 0 -1 4194304 1245 0 0 0 11 8 0 0 21 0 1 0 260870679 57421824 956 996147200 134512640 134990860 4294956096 18446744073709551615 134561282 0 0 4096 2 0 0 0 17 0 0 0
/proc/2485/statm: 14019 956 180 116 0 13530 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 56076

[startup+0.202745 s]
/proc/loadavg: 2.01 2.09 2.05 4/85 2485
/proc/meminfo: memFree=1355904/2055920 swapFree=4180000/4192956
[pid=2485] ppid=2483 vsize=56076 CPUtime=0.19
/proc/2485/stat : 2485 (bprolog) R 2483 2485 1367 0 -1 4194304 1281 0 0 0 11 8 0 0 21 0 1 0 260870679 57421824 992 996147200 134512640 134990860 4294956096 18446744073709551615 134565798 0 0 4096 2 0 0 0 17 0 0 0
/proc/2485/statm: 14019 992 180 116 0 13530 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 56076

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

Child status: 0
Real time (s): 0.254984
CPU time (s): 0.248961
CPU user time (s): 0.160975
CPU system time (s): 0.087986
CPU usage (%): 97.6379
Max. virtual memory (cumulated for all children) (KiB): 56076

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.160975
system time used= 0.087986
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1492
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= 3
involuntary context switches= 139

runsolver used 0.004999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node81 at 2008-07-05 19:27:07
IDJOB=1094020
IDBENCH=58742
IDSOLVER=347
FILE ID=node81/1094020-1215278827
PBS_JOBID= 7882235
Free space on /tmp= 126816 MiB

SOLVER NAME= bpsolver 2008-06-27
BENCH NAME= CPAI08/csp/os-taillard-10/normalized-os-taillard-10-105-8.xml
COMMAND LINE= HOME/solver BENCHNAMENOEXT TIMEOUT
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1094020-1215278827/watcher-1094020-1215278827 -o /tmp/evaluation-result-1094020-1215278827/solver-1094020-1215278827 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/solver HOME/instance-1094020-1215278827 1800

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= ed927f81d90ae14bcb11eda3eb5fc524
RANDOM SEED=2136255950

node81.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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1356448 kB
Buffers:         46580 kB
Cached:         192264 kB
SwapCached:       6228 kB
Active:         545392 kB
Inactive:        98400 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1356448 kB
SwapTotal:     4192956 kB
SwapFree:      4180000 kB
Dirty:            1328 kB
Writeback:           0 kB
Mapped:         417024 kB
Slab:            40272 kB
Committed_AS:  1325508 kB
PageTables:       2392 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 126816 MiB
End job on node81 at 2008-07-05 19:27:08