Trace number 3732412

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 NameAnswerobjective functionCPU timeWall clock time
PB10: pb_cplex 2010-06-29OPT115 1.12483 1.07611

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/submitted-PB05/
manquinho/logic-synthesis/normalized-rot.b.opb
MD5SUM82ceb454755e01aa6cecb68eb859eaa6
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark115
Best CPU time to get the best result obtained on this benchmark1.12483
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 116
Optimality of the best value was proved NO
Number of variables1451
Total number of constraints2932
Number of constraints which are clauses2932
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint81
Number of terms in the objective function 1451
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 1451
Number of bits of the sum of numbers in the objective function 11
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 1451
Number of bits of the biggest sum of numbers11
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data

0.00/0.00	c pb_cplex 1.0 - 20100701
0.00/0.00	c Parsing opb file format. File HOME/instance-3732412-1339247257.opb.
0.00/0.00	c Instance file HOME/instance-3732412-1339247257.opb
0.00/0.00	c File size is 363009 bytes.
0.00/0.32	c Highest Coefficient sum: 82
0.00/0.32	c  IBM ILOG License Manager: "IBM ILOG Optimization Suite for Academic Initiative" is accessing CPLEX 12 with option(s): "e m b q ".
0.00/0.32	c ============================[ Problem Statistics ]=============================
0.00/0.32	c |                                                                             |
0.00/0.32	c |  Parsing time:          0.32         s                                      |
0.00/0.32	c |  Number Variables:      1451                                                |
0.00/0.32	c |  Number Constraints:    2932                                                |
0.00/0.32	c ===============================================================================
0.99/1.07	c Remaining time 1799.68 sec.
0.99/1.07	s OPTIMUM FOUND
0.99/1.07	c Solution value = 115.00
0.99/1.07	v -x1 -x2 -x3 -x4 -x5 -x6 x7 -x8 -x9 -x10 -x11 -x12 -x13 -x14 -x15 -x16 -x17 -x18 -x19 -x20 -x21 -x22 -x23 x24 x25 -x26 -x27 -x28 -x29 -x30 -x31 -x32 -x33 -x34 -x35 -x36 -x37 -x38 -x39 -x40 -x41 -x42 x43 -x44 x45 -x46 -x47 -x48 -x49 -x50 -x51 -x52 -x53 -x54 -x55 -x56 x57 -x58 -x59 -x60 -x61 -x62 -x63 -x64 -x65 -x66 -x67 -x68 -x69 -x70 -x71 -x72 -x73 -x74 -x75 -x76 -x77 -x78 -x79 -x80 -x81 -x82 -x83 -x84 -x85 x86 -x87 -x88 -x89 -x90 -x91 -x92 -x93 -x94 -x95 -x96 -x97 -x98 -x99 x100 -x101 -x102 -x103 -x104 -x105 -x106 -x107 -x108 -x109 -x110 -x111 -x112 -x113 -x114 -x115 -x116 -x117 -x118 -x119 -x120 x121 -x122 -x123 x124 -x125 -x126 -x127 -x128 -x129 -x130 -x131 -x132 -x133 -x134 -x135 -x136 -x137 -x138 -x139 -x140 -x141 -x142 -x143 -x144 -x145 -x146 -x147 -x148 -x149 -x150 x151 -x152 -x153 -x154 -x155 -x156 -x157 -x158 -x159 -x160 -x161 -x162 -x163 -x164 -x165 -x166 -x167 -x168 -x169 -x170 -x171 -x172 -x173 -x174 -x175 -x176 -x177 x178 -x179 -x180 -x181 -x182 x183 -x184 -x185 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0.99/1.07	c Total CPU time              : 1.06184 s

Verifier Data

OK	115

Watcher Data

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.1 (svn: 989)

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-3732412-1339247257/watcher-3732412-1339247257 -o /tmp/evaluation-result-3732412-1339247257/solver-3732412-1339247257 -C 1800 -W 1900 -M 15500 run HOME/instance-3732412-1339247257.opb 

running on 4 cores: 1,3,5,7

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): 1900 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 11.45 8.69 4.14 7/184 16811
/proc/meminfo: memFree=26811720/32873648 swapFree=7376/7376
[pid=16811] ppid=16809 vsize=9148 CPUtime=0 cores=1,3,5,7
/proc/16811/stat : 16811 (run) S 16809 16811 15880 0 -1 4202496 354 0 0 0 0 0 0 0 20 0 1 0 390851098 9367552 270 33554432000 4194304 5064252 140734665828192 140734665827104 270707353166 0 65536 4100 65538 18446744071579302229 0 0 17 5 0 0 0 0 0
/proc/16811/statm: 2287 270 229 213 0 72 0

[startup+0.084349 s]
/proc/loadavg: 11.45 8.69 4.14 7/184 16811
/proc/meminfo: memFree=26811720/32873648 swapFree=7376/7376
[pid=16811] ppid=16809 vsize=9148 CPUtime=0 cores=1,3,5,7
/proc/16811/stat : 16811 (run) S 16809 16811 15880 0 -1 4202496 354 0 0 0 0 0 0 0 20 0 1 0 390851098 9367552 270 33554432000 4194304 5064252 140734665828192 140734665827104 270707353166 0 65536 4100 65538 18446744071579302229 0 0 17 5 0 0 0 0 0
/proc/16811/statm: 2287 270 229 213 0 72 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 9148

[startup+0.100203 s]
/proc/loadavg: 11.45 8.69 4.14 7/184 16811
/proc/meminfo: memFree=26811720/32873648 swapFree=7376/7376
[pid=16811] ppid=16809 vsize=9148 CPUtime=0 cores=1,3,5,7
/proc/16811/stat : 16811 (run) S 16809 16811 15880 0 -1 4202496 354 0 0 0 0 0 0 0 20 0 1 0 390851098 9367552 270 33554432000 4194304 5064252 140734665828192 140734665827104 270707353166 0 65536 4100 65538 18446744071579302229 0 0 17 5 0 0 0 0 0
/proc/16811/statm: 2287 270 229 213 0 72 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 9148

[startup+0.300181 s]
/proc/loadavg: 11.45 8.69 4.14 7/184 16811
/proc/meminfo: memFree=26811720/32873648 swapFree=7376/7376
[pid=16811] ppid=16809 vsize=9148 CPUtime=0 cores=1,3,5,7
/proc/16811/stat : 16811 (run) S 16809 16811 15880 0 -1 4202496 354 0 0 0 0 0 0 0 20 0 1 0 390851098 9367552 270 33554432000 4194304 5064252 140734665828192 140734665827104 270707353166 0 65536 4100 65538 18446744071579302229 0 0 17 5 0 0 0 0 0
/proc/16811/statm: 2287 270 229 213 0 72 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 9148

[startup+0.700121 s]
/proc/loadavg: 11.45 8.69 4.14 7/184 16811
/proc/meminfo: memFree=26811720/32873648 swapFree=7376/7376
[pid=16811] ppid=16809 vsize=9148 CPUtime=0 cores=1,3,5,7
/proc/16811/stat : 16811 (run) S 16809 16811 15880 0 -1 4202496 354 0 0 0 0 0 0 0 20 0 1 0 390851098 9367552 270 33554432000 4194304 5064252 140734665828192 140734665827104 270707353166 0 65536 4100 65538 18446744071579302229 0 0 17 5 0 0 0 0 0
/proc/16811/statm: 2287 270 229 213 0 72 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 9148

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

[startup+0.900204 s]
/proc/loadavg: 11.45 8.69 4.14 7/184 16811
/proc/meminfo: memFree=26811720/32873648 swapFree=7376/7376
[pid=16811] ppid=16809 vsize=9148 CPUtime=0 cores=1,3,5,7
/proc/16811/stat : 16811 (run) S 16809 16811 15880 0 -1 4202496 354 0 0 0 0 0 0 0 20 0 1 0 390851098 9367552 270 33554432000 4194304 5064252 140734665828192 140734665827104 270707353166 0 65536 4100 65538 18446744071579302229 0 0 17 5 0 0 0 0 0
/proc/16811/statm: 2287 270 229 213 0 72 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 9148

[startup+1.00014 s]
/proc/loadavg: 10.78 8.60 4.13 10/186 16820
/proc/meminfo: memFree=26798008/32873648 swapFree=7376/7376
[pid=16811] ppid=16809 vsize=9148 CPUtime=0 cores=1,3,5,7
/proc/16811/stat : 16811 (run) S 16809 16811 15880 0 -1 4202496 354 0 0 0 0 0 0 0 20 0 1 0 390851098 9367552 270 33554432000 4194304 5064252 140734665828192 140734665827104 270707353166 0 65536 4100 65538 18446744071579302229 0 0 17 5 0 0 0 0 0
/proc/16811/statm: 2287 270 229 213 0 72 0
[pid=16812] ppid=16811 vsize=70772 CPUtime=0.99 cores=1,3,5,7
/proc/16812/stat : 16812 (pb_cplex) R 16811 16811 15880 0 -1 4202496 8533 0 0 0 98 1 0 0 20 0 1 0 390851098 72470528 4351 33554432000 134512640 146736320 4287720080 4287717164 139023109 0 0 4096 16387 0 0 0 17 3 0 0 0 0 0
/proc/16812/statm: 17693 4351 956 2985 0 14627 0
Current children cumulated CPU time (s) 0.99
Current children cumulated vsize (KiB) 79920

Child status: 0
Real time (s): 1.07611
CPU time (s): 1.12483
CPU user time (s): 1.06284
CPU system time (s): 0.06199
CPU usage (%): 104.527
Max. virtual memory (cumulated for all children) (KiB): 79920

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.06284
system time used= 0.06199
maximum resident set size= 25020
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 11090
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= 1954
involuntary context switches= 103

runsolver used 0.000999 second user time and 0.005999 second system time

The end

Launcher Data

Begin job on node125 at 2012-06-09 15:07:37
IDJOB=3732412
IDBENCH=2055
IDSOLVER=2325
FILE ID=node125/3732412-1339247257
RUNJOBID= node125-1339246835-15898
PBS_JOBID= 14644356
Free space on /tmp= 68696 MiB

SOLVER NAME= PB10: pb_cplex 2010-06-29
BENCH NAME= PB06//final/normalized-PB06/OPT-SMALLINT/submitted-PB05/manquinho/logic-synthesis/normalized-rot.b.opb
COMMAND LINE= run BENCHNAME
CONVERSION SCRIPT= PBconversionToLinear BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3732412-1339247257/watcher-3732412-1339247257 -o /tmp/evaluation-result-3732412-1339247257/solver-3732412-1339247257 -C 1800 -W 1900 -M 15500  run HOME/instance-3732412-1339247257.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 82ceb454755e01aa6cecb68eb859eaa6
RANDOM SEED=1542200538

node125.alineos.net Linux 2.6.32-71.29.1.el6.x86_64 #1 SMP Mon Jun 27 19:49:27 BST 2011

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.373
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
initial apicid	: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.373
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
initial apicid	: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5331.91
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.373
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
initial apicid	: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5331.92
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.373
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
initial apicid	: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5331.90
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.373
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
initial apicid	: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5331.91
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.373
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
initial apicid	: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5438.54
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.373
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
initial apicid	: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5331.91
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.373
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
initial apicid	: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5331.91
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:       32873648 kB
MemFree:        26811620 kB
Buffers:          795636 kB
Cached:          4172436 kB
SwapCached:         1248 kB
Active:          4597060 kB
Inactive:         500204 kB
Active(anon):     118256 kB
Inactive(anon):     7424 kB
Active(file):    4478804 kB
Inactive(file):   492780 kB
Unevictable:        7376 kB
Mlocked:            7376 kB
SwapTotal:      67108856 kB
SwapFree:       67102600 kB
Dirty:             17292 kB
Writeback:             0 kB
AnonPages:        129880 kB
Mapped:            15300 kB
Shmem:                96 kB
Slab:             825848 kB
SReclaimable:     268416 kB
SUnreclaim:       557432 kB
KernelStack:        1528 kB
PageTables:         4384 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83545680 kB
Committed_AS:     255960 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      346400 kB
VmallocChunk:   34341988052 kB
HardwareCorrupted:     0 kB
AnonHugePages:     34816 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:        7680 kB
DirectMap2M:    33538048 kB

CONVERSION COMMAND LINE= PBconversionToLinear HOME/instance-3732412-1339247257.opb

Free space on /tmp at the end= 68680 MiB
End job on node125 at 2012-06-09 15:07:38