Trace number 2074131

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
Mistral 1.545SAT 0.034994 0.042474

DiagnosticValue
ASSIGNMENTS352
CHECKS187028
NODES352

General information on the benchmark

Namecsp/os-taillard-5/
normalized-os-taillard-5-100-8.xml
MD5SUMdbe63d3136de77fb19a11683e6f772a1
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 benchmark0.034994
Satisfiable
(Un)Satisfiability was proved
Number of variables25
Number of constraints100
Maximum constraint arity2
Maximum domain size338
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 

0.00/0.03	c mistral version 1.545
0.02/0.04	s SATISFIABLE
0.02/0.04	v 106 263 180 0 132 192 260 73 96 0 17 56 180 257 90 257 0 55 131 190 106 90 0 264 167
0.02/0.04	d CHECKS 187028
0.02/0.04	d ASSIGNMENTS 352
0.02/0.04	d NODES 352 BACKTRACKS 290 FAILURES 290 RUNTIME 0.03 TOTALTIME 0.03 NODES/s 11733.3 CHECKS/s 6.23427e+06

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-2074131-1247359101/watcher-2074131-1247359101 -o /tmp/evaluation-result-2074131-1247359101/solver-2074131-1247359101 -C 1800 -W 2000 -M 900 /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2074131-1247359101.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: 1.50 2.01 2.11 4/83 17126
/proc/meminfo: memFree=1454288/2055920 swapFree=4192812/4192956
[pid=17126] ppid=17124 vsize=18576 CPUtime=0
/proc/17126/stat : 17126 (runsolver) R 17124 17126 15350 0 -1 4194368 15 0 0 0 0 0 0 0 21 0 1 0 22975353 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 228043844903 0 2147483391 4096 24578 0 0 0 17 0 0 0
/proc/17126/statm: 4644 284 249 26 0 2626 0

[startup+0.0315719 s]
/proc/loadavg: 1.50 2.01 2.11 4/83 17126
/proc/meminfo: memFree=1454288/2055920 swapFree=4192812/4192956
[pid=17126] ppid=17124 vsize=5204 CPUtime=0.02
/proc/17126/stat : 17126 (ld-linux.so.2) R 17124 17126 15350 0 -1 4194304 574 0 0 0 2 0 0 0 21 0 1 0 22975353 5328896 553 996147200 1448431616 1448550632 4294956208 18446744073709551615 134824142 0 0 4096 0 0 0 0 17 0 0 0
/proc/17126/statm: 1301 553 419 29 0 116 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 5204

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

[startup+0.0315719 s]
/proc/loadavg: 1.50 2.01 2.11 4/83 17126
/proc/meminfo: memFree=1454288/2055920 swapFree=4192812/4192956
[pid=17126] ppid=17124 vsize=5204 CPUtime=0.02
/proc/17126/stat : 17126 (ld-linux.so.2) R 17124 17126 15350 0 -1 4194304 574 0 0 0 2 0 0 0 21 0 1 0 22975353 5328896 553 996147200 1448431616 1448550632 4294956208 18446744073709551615 134824142 0 0 4096 0 0 0 0 17 0 0 0
/proc/17126/statm: 1301 553 419 29 0 116 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 5204

Child status: 0
Real time (s): 0.042474
CPU time (s): 0.034994
CPU user time (s): 0.031995
CPU system time (s): 0.002999
CPU usage (%): 82.3892
Max. virtual memory (cumulated for all children) (KiB): 5204

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.031995
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 616
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= 24
involuntary context switches= 7

runsolver used 0.002999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node77 at 2009-07-12 02:38:21
IDJOB=2074131
IDBENCH=56068
IDSOLVER=769
FILE ID=node77/2074131-1247359101
PBS_JOBID= 9506811
Free space on /tmp= 66160 MiB

SOLVER NAME= Mistral 1.545
BENCH NAME= CPAI08/csp/os-taillard-5/normalized-os-taillard-5-100-8.xml
COMMAND LINE= /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2074131-1247359101/watcher-2074131-1247359101 -o /tmp/evaluation-result-2074131-1247359101/solver-2074131-1247359101 -C 1800 -W 2000 -M 900  /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2074131-1247359101.xml

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

MD5SUM BENCH= dbe63d3136de77fb19a11683e6f772a1
RANDOM SEED=135181221

node77.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		: 3000.256
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		: 3000.256
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:       1454768 kB
Buffers:         13752 kB
Cached:          80428 kB
SwapCached:        136 kB
Active:         514188 kB
Inactive:        39180 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1454768 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1260 kB
Writeback:           0 kB
Mapped:         479440 kB
Slab:            32208 kB
Committed_AS:   633992 kB
PageTables:       2676 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= 66160 MiB
End job on node77 at 2009-07-12 02:38:22