Trace number 2087753

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
pcs-restart 0.3.2SAT 0.39394 0.399336

DiagnosticValue
ASSIGNMENTS140

General information on the benchmark

Namecsp/os-taillard-7/
normalized-os-taillard-7-105-7.xml
MD5SUMfdcb03454f531a00ccd56515354bdae6
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 benchmark0.043992
Satisfiable
(Un)Satisfiability was proved
Number of variables49
Number of constraints294
Maximum constraint arity2
Maximum domain size445
Number of constraints which are defined in extension0
Number of constraints which are defined in intension294
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c has big domains
0.00/0.01	c big-domain mode
0.18/0.22	c Seed is 1828433066
0.18/0.22	c Constructing HOME/instance-2087753-1247728317.xml  with 2058 constraints
0.18/0.22	c Solving 140 backtracks 4 restarts
0.28/0.39	s SATISFIABLE
0.28/0.39	c V0=103, V1=83, V2=410, V3=360, V4=236, V5=139, V6=0, V7=389, V8=0, V9=245, V10=347, V11=293, V12=142, V13=55, V14=140, V15=21, V16=389, V17=23, V18=83, V19=259, V20=0, V21=0, V22=101, V23=33, V24=245, V25=166, V26=341, V27=139, V28=356, V29=0, V30=142, V31=236, V32=214, V33=61, V34=293, V35=140, V36=0, V37=61, V38=166, V39=122, V40=347, V41=33, V42=135, V43=276, V44=55, V45=23, V46=360, V47=0, V48=214, 
0.28/0.39	v 103 83 410 360 236 139 0 389 0 245 347 293 142 55 140 21 389 23 83 259 0 0 101 33 245 166 341 139 356 0 142 236 214 61 293 140 0 61 166 122 347 33 135 276 55 23 360 0 214 
0.28/0.39	d ASSIGNMENTS 140

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-2087753-1247728317/watcher-2087753-1247728317 -o /tmp/evaluation-result-2087753-1247728317/solver-2087753-1247728317 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1828433066 HOME/instance-2087753-1247728317.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: 2.05 2.00 1.99 4/81 13543
/proc/meminfo: memFree=1187656/2055920 swapFree=4192812/4192956
[pid=13543] ppid=13541 vsize=18576 CPUtime=0
/proc/13543/stat : 13543 (runsolver) R 13541 13543 12500 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 59895808 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 266890439975 0 0 4096 24578 0 0 0 17 1 0 0
/proc/13543/statm: 4644 284 249 26 0 2626 0

[startup+0.069083 s]
/proc/loadavg: 2.05 2.00 1.99 4/81 13543
/proc/meminfo: memFree=1187656/2055920 swapFree=4192812/4192956
[pid=13543] ppid=13541 vsize=5944 CPUtime=0.05
/proc/13543/stat : 13543 (pcs.big) R 13541 13543 12500 0 -1 4194304 1159 659 0 0 5 0 0 0 18 0 1 0 59895808 6086656 790 996147200 134512640 135215973 4294956304 18446744073709551615 134583660 0 0 4096 0 0 0 0 17 1 0 0
/proc/13543/statm: 1486 790 403 171 0 411 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 5944

[startup+0.101084 s]
/proc/loadavg: 2.05 2.00 1.99 4/81 13543
/proc/meminfo: memFree=1187656/2055920 swapFree=4192812/4192956
[pid=13543] ppid=13541 vsize=6152 CPUtime=0.08
/proc/13543/stat : 13543 (pcs.big) R 13541 13543 12500 0 -1 4194304 1240 659 0 0 8 0 0 0 18 0 1 0 59895808 6299648 818 996147200 134512640 135215973 4294956304 18446744073709551615 134583227 0 0 4096 0 0 0 0 17 1 0 0
/proc/13543/statm: 1538 818 406 171 0 463 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 6152

[startup+0.301105 s]
/proc/loadavg: 2.05 2.00 1.99 4/81 13543
/proc/meminfo: memFree=1187656/2055920 swapFree=4192812/4192956
[pid=13543] ppid=13541 vsize=6284 CPUtime=0.28
/proc/13543/stat : 13543 (pcs.big) R 13541 13543 12500 0 -1 4194304 1263 659 0 0 28 0 0 0 19 0 1 0 59895808 6434816 841 996147200 134512640 135215973 4294956304 18446744073709551615 134593969 0 0 4096 0 0 0 0 17 1 0 0
/proc/13543/statm: 1571 841 406 171 0 496 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 6284

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

Child status: 0
Real time (s): 0.399336
CPU time (s): 0.39394
CPU user time (s): 0.380942
CPU system time (s): 0.012998
CPU usage (%): 98.6487
Max. virtual memory (cumulated for all children) (KiB): 6284

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.380942
system time used= 0.012998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1959
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= 19
involuntary context switches= 24

runsolver used 0.001999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node38 at 2009-07-16 09:11:57
IDJOB=2087753
IDBENCH=58793
IDSOLVER=734
FILE ID=node38/2087753-1247728317
PBS_JOBID= 9521530
Free space on /tmp= 66228 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/os-taillard-7/normalized-os-taillard-7-105-7.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2087753-1247728317/watcher-2087753-1247728317 -o /tmp/evaluation-result-2087753-1247728317/solver-2087753-1247728317 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1828433066 HOME/instance-2087753-1247728317.xml

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

MD5SUM BENCH= fdcb03454f531a00ccd56515354bdae6
RANDOM SEED=1828433066

node38.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		: 3000.229
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		: 3000.229
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:       1188136 kB
Buffers:         93468 kB
Cached:         632296 kB
SwapCached:          0 kB
Active:         256952 kB
Inactive:       513464 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1188136 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1888 kB
Writeback:           0 kB
Mapped:          65132 kB
Slab:            82300 kB
Committed_AS:   575340 kB
PageTables:       1992 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= 66228 MiB
End job on node38 at 2009-07-16 09:11:58