Trace number 234740

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
VALCSP 3.0SAT 87.2877 87.9474

DiagnosticValue
CHECKS11950000000
NODES17674

General information on the benchmark

Nametaillard/os-taillard-5/
os-taillard-5-100-1.xml
MD5SUM31b99d462f62bf82957dacf6423a2f9a
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 benchmark0.024995
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables25
Number of constraints100
Maximum constraint arity2
Maximum domain size262
Number of constraints which are defined in extension0
Number of constraints which are defined in intension100
Global constraints used (with number of constraints)

Solver Data (download as text)

87.94	s SATISFIABLE
87.94	v 145 0 228 40 121 240 0 145 176 55 70 153 240 0 228 112 40 153 240 0 121 70 0 176 55 
87.94	d CHECKS 1.195e+10
87.94	d NODES 17674
87.94

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/node38/watcher-234740-1168333122 -o ROOT/results/node38/solver-234740-1168333122 -C 1800 -M 900 /tmp/evaluation/234740-1168333122/VALCSP /tmp/evaluation/234740-1168333122/unknown.xml 

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


[startup+0.108669 s]
/proc/loadavg: 2.00 2.00 1.83 5/73 6233
/proc/meminfo: memFree=1453912/2055920 swapFree=4192812/4192956
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 0
/proc/loadavg: 2.00 2.00 1.83 5/73 6233
/proc/meminfo: memFree=1453912/2055920 swapFree=4192812/4192956
[pid=6232] ppid=6230 vsize=3052 CPUtime=0.1
/proc/6232/stat : 6232 (VALCSP) R 6230 6232 5749 0 -1 4194304 510 0 0 0 10 0 0 0 21 0 1 0 181711819 3125248 488 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530258 0 0 4096 0 0 0 0 17 1 0 0
/proc/6232/statm: 763 488 64 8 0 435 0

[startup+0.516748 s]
/proc/loadavg: 2.00 2.00 1.83 5/73 6233
/proc/meminfo: memFree=1453912/2055920 swapFree=4192812/4192956
[pid=6232] ppid=6230 vsize=9784 CPUtime=0.5
/proc/6232/stat : 6232 (VALCSP) R 6230 6232 5749 0 -1 4194304 2186 0 0 0 50 0 0 0 25 0 1 0 181711819 10018816 2164 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530962 0 0 4096 0 0 0 0 17 1 0 0
/proc/6232/statm: 2446 2164 64 8 0 2118 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 9784

[startup+1.33792 s]
/proc/loadavg: 2.00 2.00 1.83 3/73 6233
/proc/meminfo: memFree=1436504/2055920 swapFree=4192812/4192956
[pid=6232] ppid=6230 vsize=20344 CPUtime=1.32
/proc/6232/stat : 6232 (VALCSP) R 6230 6232 5749 0 -1 4194304 4828 0 0 0 130 2 0 0 25 0 1 0 181711819 20832256 4806 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524658 0 0 4096 0 0 0 0 17 1 0 0
/proc/6232/statm: 5086 4806 66 8 0 4758 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 20344

[startup+2.97623 s]
/proc/loadavg: 2.00 2.00 1.83 3/73 6233
/proc/meminfo: memFree=1435224/2055920 swapFree=4192812/4192956
[pid=6232] ppid=6230 vsize=20344 CPUtime=2.95
/proc/6232/stat : 6232 (VALCSP) R 6230 6232 5749 0 -1 4194304 4828 0 0 0 293 2 0 0 25 0 1 0 181711819 20832256 4806 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524791 0 0 4096 0 0 0 0 17 1 0 0
/proc/6232/statm: 5086 4806 66 8 0 4758 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 20344

[startup+6.25987 s]
/proc/loadavg: 2.00 2.00 1.83 3/73 6233
/proc/meminfo: memFree=1435168/2055920 swapFree=4192812/4192956
[pid=6232] ppid=6230 vsize=20344 CPUtime=6.2
/proc/6232/stat : 6232 (VALCSP) R 6230 6232 5749 0 -1 4194304 4828 0 0 0 618 2 0 0 25 0 1 0 181711819 20832256 4806 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524787 0 0 4096 0 0 0 0 17 1 0 0
/proc/6232/statm: 5086 4806 66 8 0 4758 0
Current children cumulated CPU time (s) 6.2
Current children cumulated vsize (KiB) 20344

[startup+12.7231 s]
/proc/loadavg: 2.00 2.00 1.83 3/73 6233
/proc/meminfo: memFree=1435168/2055920 swapFree=4192812/4192956
[pid=6232] ppid=6230 vsize=20344 CPUtime=12.62
/proc/6232/stat : 6232 (VALCSP) R 6230 6232 5749 0 -1 4194304 4828 0 0 0 1260 2 0 0 25 0 1 0 181711819 20832256 4806 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524920 0 0 4096 0 0 0 0 17 1 0 0
/proc/6232/statm: 5086 4806 66 8 0 4758 0
Current children cumulated CPU time (s) 12.62
Current children cumulated vsize (KiB) 20344

[startup+25.5476 s]
/proc/loadavg: 2.00 2.00 1.83 3/73 6233
/proc/meminfo: memFree=1435168/2055920 swapFree=4192812/4192956
[pid=6232] ppid=6230 vsize=20344 CPUtime=25.35
/proc/6232/stat : 6232 (VALCSP) R 6230 6232 5749 0 -1 4194304 4828 0 0 0 2533 2 0 0 25 0 1 0 181711819 20832256 4806 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524787 0 0 4096 0 0 0 0 17 1 0 0
/proc/6232/statm: 5086 4806 66 8 0 4758 0
Current children cumulated CPU time (s) 25.35
Current children cumulated vsize (KiB) 20344

[startup+51.1936 s]
/proc/loadavg: 2.00 2.00 1.83 3/73 6233
/proc/meminfo: memFree=1435168/2055920 swapFree=4192812/4192956
[pid=6232] ppid=6230 vsize=20344 CPUtime=50.8
/proc/6232/stat : 6232 (VALCSP) R 6230 6232 5749 0 -1 4194304 4828 0 0 0 5078 2 0 0 25 0 1 0 181711819 20832256 4806 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524623 0 0 4096 0 0 0 0 17 1 0 0
/proc/6232/statm: 5086 4806 66 8 0 4758 0
Current children cumulated CPU time (s) 50.8
Current children cumulated vsize (KiB) 20344

Child status: 0
Real time (s): 87.9474
CPU time (s): 87.2877
CPU user time (s): 87.2597
CPU system time (s): 0.027995
CPU usage (%): 99.2499
Max. virtual memory (cumulated for all children) (KiB): 20344

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 87.2597
system time used= 0.027995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4858
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= 6
involuntary context switches= 1884

runsolver used 0.086986 s user time and 0.228965 s system time

The end

Launcher Data (download as text)

Begin job on node38 on Tue Jan  9 08:58:42 UTC 2007


IDJOB= 234740
IDBENCH= 6709
FILE ID= node38/234740-1168333122

PBS_JOBID= 3503288

Free space on /tmp= 66519 MiB

BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-5/os-taillard-5-100-1.xml
COMMAND LINE= /tmp/evaluation/234740-1168333122/VALCSP /tmp/evaluation/234740-1168333122/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node38/watcher-234740-1168333122 -o ROOT/results/node38/solver-234740-1168333122 -C 1800 -M 900  /tmp/evaluation/234740-1168333122/VALCSP /tmp/evaluation/234740-1168333122/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  31b99d462f62bf82957dacf6423a2f9a

RANDOM SEED= 744530089

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		: 3000.267
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		: 3000.267
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:       1454712 kB
Buffers:          8812 kB
Cached:         476368 kB
SwapCached:          0 kB
Active:         113320 kB
Inactive:       435772 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1454712 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:              68 kB
Writeback:           0 kB
Mapped:          77500 kB
Slab:            37560 kB
Committed_AS:  4176696 kB
PageTables:       1900 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= 66519 MiB



End job on node38 on Tue Jan  9 09:00:10 UTC 2007