Trace number 2087764

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 2.6366 2.67107

DiagnosticValue
ASSIGNMENTS1857

General information on the benchmark

Namecsp/os-taillard-7/
normalized-os-taillard-7-100-7.xml
MD5SUMa55ee0905232b4c6d55882a96504a02c
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 benchmark0.300953
Satisfiable
(Un)Satisfiability was proved
Number of variables49
Number of constraints294
Maximum constraint arity2
Maximum domain size424
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
0.18/0.20	c Seed is 715745711
0.18/0.20	c Constructing HOME/instance-2087764-1247728331.xml  with 2058 constraints
0.18/0.20	c Solving 1857 backtracks 10 restarts
2.54/2.67	s SATISFIABLE
2.54/2.67	c V0=314, V1=108, V2=300, V3=146, V4=0, V5=195, V6=333, V7=189, V8=54, V9=227, V10=382, V11=0, V12=109, V13=321, V14=10, V15=299, V16=314, V17=185, V18=89, V19=202, V20=405, V21=185, V22=147, V23=79, V24=218, V25=0, V26=341, V27=314, V28=0, V29=128, V30=333, V31=54, V32=405, V33=189, V34=275, V35=87, V36=270, V37=91, V38=109, V39=291, V40=326, V41=315, V42=0, V43=62, V44=344, V45=315, V46=146, V47=292, V48=227, 
2.54/2.67	v 314 108 300 146 0 195 333 189 54 227 382 0 109 321 10 299 314 185 89 202 405 185 147 79 218 0 341 314 0 128 333 54 405 189 275 87 270 91 109 291 326 315 0 62 344 315 146 292 227 
2.54/2.67	d ASSIGNMENTS 1857

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-2087764-1247728331/watcher-2087764-1247728331 -o /tmp/evaluation-result-2087764-1247728331/solver-2087764-1247728331 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 715745711 HOME/instance-2087764-1247728331.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: 2.12 2.10 2.03 4/81 20154
/proc/meminfo: memFree=1603224/2055920 swapFree=4192812/4192956
[pid=20154] ppid=20152 vsize=5356 CPUtime=0
/proc/20154/stat : 20154 (pcssolve) R 20152 20154 19682 0 -1 4194304 273 0 0 0 0 0 0 0 20 0 1 0 59896629 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 235371293343 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/20154/statm: 1339 241 200 169 0 50 0
[pid=20155] ppid=20154 vsize=5356 CPUtime=0
/proc/20155/stat : 20155 (pcssolve) R 20154 20154 19682 0 -1 4194368 0 0 0 0 0 0 0 0 20 0 1 0 59896629 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 235371293343 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/20155/statm: 1339 241 200 169 0 50 0

[startup+0.011796 s]
/proc/loadavg: 2.12 2.10 2.03 4/81 20154
/proc/meminfo: memFree=1603224/2055920 swapFree=4192812/4192956
[pid=20154] ppid=20152 vsize=5356 CPUtime=0
/proc/20154/stat : 20154 (pcssolve) S 20152 20154 19682 0 -1 4194304 305 155 0 0 0 0 0 0 21 0 1 0 59896629 5484544 242 996147200 4194304 4889804 548682068800 18446744073709551615 235371291460 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/20154/statm: 1339 242 201 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+0.102805 s]
/proc/loadavg: 2.12 2.10 2.03 4/81 20154
/proc/meminfo: memFree=1603224/2055920 swapFree=4192812/4192956
[pid=20154] ppid=20152 vsize=5944 CPUtime=0.08
/proc/20154/stat : 20154 (pcs.big) R 20152 20154 19682 0 -1 4194304 1173 660 0 0 8 0 0 0 18 0 1 0 59896629 6086656 804 996147200 134512640 135215973 4294956304 18446744073709551615 3083870 0 0 4096 0 0 0 0 17 1 0 0
/proc/20154/statm: 1486 804 406 171 0 411 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5944

[startup+0.302821 s]
/proc/loadavg: 2.12 2.10 2.03 4/81 20154
/proc/meminfo: memFree=1603224/2055920 swapFree=4192812/4192956
[pid=20154] ppid=20152 vsize=6068 CPUtime=0.28
/proc/20154/stat : 20154 (pcs.big) R 20152 20154 19682 0 -1 4194304 1204 660 0 0 28 0 0 0 19 0 1 0 59896629 6213632 835 996147200 134512640 135215973 4294956304 18446744073709551615 134957887 0 0 4096 0 0 0 0 17 1 0 0
/proc/20154/statm: 1517 835 406 171 0 442 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 6068

[startup+0.702858 s]
/proc/loadavg: 2.12 2.10 2.03 4/81 20154
/proc/meminfo: memFree=1603224/2055920 swapFree=4192812/4192956
[pid=20154] ppid=20152 vsize=6784 CPUtime=0.67
/proc/20154/stat : 20154 (pcs.big) R 20152 20154 19682 0 -1 4194304 1371 660 0 0 67 0 0 0 23 0 1 0 59896629 6946816 949 996147200 134512640 135215973 4294956304 18446744073709551615 134590609 0 0 4096 0 0 0 0 17 1 0 0
/proc/20154/statm: 1696 949 406 171 0 621 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 6784

[startup+1.50193 s]
/proc/loadavg: 2.12 2.10 2.03 3/82 20159
/proc/meminfo: memFree=1600464/2055920 swapFree=4192812/4192956
[pid=20154] ppid=20152 vsize=7692 CPUtime=1.46
/proc/20154/stat : 20154 (pcs.big) R 20152 20154 19682 0 -1 4194304 1596 660 0 0 146 0 0 0 25 0 1 0 59896629 7876608 1174 996147200 134512640 135215973 4294956304 18446744073709551615 134599996 0 0 4096 0 0 0 0 17 1 0 0
/proc/20154/statm: 1923 1174 406 171 0 848 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 7692

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

[startup+2.302 s]
/proc/loadavg: 2.12 2.10 2.03 3/82 20159
/proc/meminfo: memFree=1599120/2055920 swapFree=4192812/4192956
[pid=20154] ppid=20152 vsize=8576 CPUtime=2.25
/proc/20154/stat : 20154 (pcs.big) R 20152 20154 19682 0 -1 4194304 1862 660 0 0 225 0 0 0 25 0 1 0 59896629 8781824 1407 996147200 134512640 135215973 4294956304 18446744073709551615 4158960812 0 0 4096 0 0 0 0 17 1 0 0
/proc/20154/statm: 2144 1407 406 171 0 1069 0
Current children cumulated CPU time (s) 2.25
Current children cumulated vsize (KiB) 8576

[startup+2.50202 s]
/proc/loadavg: 2.12 2.10 2.03 3/82 20159
/proc/meminfo: memFree=1599120/2055920 swapFree=4192812/4192956
[pid=20154] ppid=20152 vsize=8828 CPUtime=2.45
/proc/20154/stat : 20154 (pcs.big) R 20152 20154 19682 0 -1 4194304 1934 660 0 0 245 0 0 0 25 0 1 0 59896629 9039872 1479 996147200 134512640 135215973 4294956304 18446744073709551615 134589288 0 0 4096 0 0 0 0 17 1 0 0
/proc/20154/statm: 2207 1479 406 171 0 1132 0
Current children cumulated CPU time (s) 2.45
Current children cumulated vsize (KiB) 8828

[startup+2.60103 s]
/proc/loadavg: 2.12 2.10 2.03 3/82 20159
/proc/meminfo: memFree=1599120/2055920 swapFree=4192812/4192956
[pid=20154] ppid=20152 vsize=8952 CPUtime=2.54
/proc/20154/stat : 20154 (pcs.big) R 20152 20154 19682 0 -1 4194304 1965 660 0 0 254 0 0 0 25 0 1 0 59896629 9166848 1510 996147200 134512640 135215973 4294956304 18446744073709551615 134583375 0 0 4096 0 0 0 0 17 1 0 0
/proc/20154/statm: 2238 1510 406 171 0 1163 0
Current children cumulated CPU time (s) 2.54
Current children cumulated vsize (KiB) 8952

Child status: 0
Real time (s): 2.67107
CPU time (s): 2.6366
CPU user time (s): 2.6216
CPU system time (s): 0.014997
CPU usage (%): 98.7093
Max. virtual memory (cumulated for all children) (KiB): 8952

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.6216
system time used= 0.014997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2669
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= 123

runsolver used 0.007998 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node51 at 2009-07-16 09:12:11
IDJOB=2087764
IDBENCH=58794
IDSOLVER=734
FILE ID=node51/2087764-1247728331
PBS_JOBID= 9521584
Free space on /tmp= 66320 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/os-taillard-7/normalized-os-taillard-7-100-7.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2087764-1247728331/watcher-2087764-1247728331 -o /tmp/evaluation-result-2087764-1247728331/solver-2087764-1247728331 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 715745711 HOME/instance-2087764-1247728331.xml

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

MD5SUM BENCH= a55ee0905232b4c6d55882a96504a02c
RANDOM SEED=715745711

node51.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		: 3000.225
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		: 3000.225
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:       1603704 kB
Buffers:         65812 kB
Cached:         283980 kB
SwapCached:          0 kB
Active:          97832 kB
Inactive:       287056 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1603704 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1916 kB
Writeback:           0 kB
Mapped:          55540 kB
Slab:            52456 kB
Committed_AS:   532372 kB
PageTables:       1888 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= 66316 MiB
End job on node51 at 2009-07-16 09:12:14