Trace number 2078894

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 0.118981 0.125477

DiagnosticValue
ASSIGNMENTS153
CHECKS72707
NODES153

General information on the benchmark

Namecsp/nengfa/
normalized-queens2.xml
MD5SUMfeda91e5b3c1ff49ee389ed427acc709
Bench CategoryAlldiff (alldiff)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.118981
Satisfiable
(Un)Satisfiability was proved
Number of variables310
Number of constraints211
Maximum constraint arity104
Maximum domain size104
Number of constraints which are defined in extension0
Number of constraints which are defined in intension208
Global constraints used (with number of constraints)alldifferent(3)

Solver Data 

0.09/0.12	c mistral version 1.545
0.09/0.12	s SATISFIABLE
0.09/0.12	v 104 42 41 40 39 37 35 52 49 46 38 34 30 68 63 58 60 54 48 53 46 39 67 59 51 59 50 41 112 102 92 22 11 0 48 36 24 46 33 20 70 56 42 55 40 25 26 10 -6 72 55 38 101 83 65 71 52 33 51 31 11 116 95 74 106 84 62 115 92 69 95 71 47 33 8 -17 123 97 71 120 93 66 79 51 23 102 73 44 74 44 14 107 76 45 93 61 29 119 86 53 49 15 -19 44 9 -26 127 91 55 80 43 6 43 5 -33 58 19 -20 57 17 -23 73 32 -9 56 14 -28 118 75 32 144 100 56 133 88 43 94 48 2 125 78 31 69 21 -27 147 98 49 122 72 22 136 85 34 121 69 17 142 89 36 134 80 26 137 82 27 78 22 -34 64 7 -50 87 29 -29 62 3 -56 84 24 -36 63 2 -59 152 90 28 83 20 -43 65 1 -63 81 16 -49 140 74 8 90 23 -44 149 81 13 96 27 -42 100 30 -40 129 58 -13 97 25 -47 86 13 -60 109 35 -39 162 87 12 88 12 -64 143 66 -11 82 4 -74 173 94 15 98 18 -62 138 57 -24 159 77 -5 111 28 -55 110 26 -58 145 60 -25 92 6 -80 183 96 9 135 47 -41 156 67 -22 132 42 -48 161 70 -21 130 38 -54 155 62 -31 193 99 5 160 65 -30 141 45 -51 176 79 -18 151 53 -45 202 103 4 139 39 -61 165 64 -37 203 101 -1 171 68 -35
0.09/0.12	d CHECKS 72707
0.09/0.12	d ASSIGNMENTS 153
0.09/0.12	d NODES 153 BACKTRACKS 62 FAILURES 62 RUNTIME 0.04 TOTALTIME 0.1 NODES/s 3825 CHECKS/s 1.81768e+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-2078894-1247367576/watcher-2078894-1247367576 -o /tmp/evaluation-result-2078894-1247367576/solver-2078894-1247367576 -C 1800 -W 2000 -M 900 /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2078894-1247367576.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: 2.22 2.06 2.05 3/85 23739
/proc/meminfo: memFree=1587000/2055920 swapFree=4192812/4192956
[pid=23739] ppid=23737 vsize=18576 CPUtime=0
/proc/23739/stat : 23739 (runsolver) R 23737 23739 19487 0 -1 4194368 15 0 0 0 0 0 0 0 18 0 1 0 23824117 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 268213742887 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/23739/statm: 4644 284 249 26 0 2626 0

[startup+0.0797079 s]
/proc/loadavg: 2.22 2.06 2.05 3/85 23739
/proc/meminfo: memFree=1587000/2055920 swapFree=4192812/4192956
[pid=23739] ppid=23737 vsize=11368 CPUtime=0.07
/proc/23739/stat : 23739 (ld-linux.so.2) R 23737 23739 19487 0 -1 4194304 2058 0 0 0 6 1 0 0 18 0 1 0 23824117 11640832 2037 996147200 1448431616 1448550632 4294956208 18446744073709551615 135305999 0 0 4096 0 0 0 0 17 1 0 0
/proc/23739/statm: 2842 2037 429 29 0 1657 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 11368

[startup+0.102701 s]
/proc/loadavg: 2.22 2.06 2.05 3/85 23739
/proc/meminfo: memFree=1587000/2055920 swapFree=4192812/4192956
[pid=23739] ppid=23737 vsize=11760 CPUtime=0.09
/proc/23739/stat : 23739 (ld-linux.so.2) R 23737 23739 19487 0 -1 4194304 2138 0 0 0 8 1 0 0 18 0 1 0 23824117 12042240 2117 996147200 1448431616 1448550632 4294956208 18446744073709551615 134835338 0 0 4096 0 0 0 0 17 1 0 0
/proc/23739/statm: 2940 2117 431 29 0 1755 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11760

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

Child status: 0
Real time (s): 0.125477
CPU time (s): 0.118981
CPU user time (s): 0.107983
CPU system time (s): 0.010998
CPU usage (%): 94.823
Max. virtual memory (cumulated for all children) (KiB): 11760

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.107983
system time used= 0.010998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2173
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= 14
involuntary context switches= 6

runsolver used 0.002999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node32 at 2009-07-12 04:59:36
IDJOB=2078894
IDBENCH=56822
IDSOLVER=769
FILE ID=node32/2078894-1247367576
PBS_JOBID= 9507034
Free space on /tmp= 66368 MiB

SOLVER NAME= Mistral 1.545
BENCH NAME= CPAI08/csp/nengfa/normalized-queens2.xml
COMMAND LINE= /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2078894-1247367576/watcher-2078894-1247367576 -o /tmp/evaluation-result-2078894-1247367576/solver-2078894-1247367576 -C 1800 -W 2000 -M 900  /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2078894-1247367576.xml

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

MD5SUM BENCH= feda91e5b3c1ff49ee389ed427acc709
RANDOM SEED=1879708439

node32.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	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1587480 kB
Buffers:         40504 kB
Cached:         167712 kB
SwapCached:          0 kB
Active:         323900 kB
Inactive:        77768 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1587480 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1388 kB
Writeback:           0 kB
Mapped:         209136 kB
Slab:            51420 kB
Committed_AS:   899232 kB
PageTables:       2240 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= 66368 MiB
End job on node32 at 2009-07-12 04:59:36