Trace number 371516

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, and are wall clock time (not CPU 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
March KS 2007-02-08UNSAT 6.90195 6.90716

General information on the benchmark

Namerandom/OnTreshold/5SAT/v70/
unif-k5-r21.3-v70-c1491-S1402143852-01.UNSAT.shuffled.cnf
MD5SUM0748b6663894d676be78ac8cb4ea38d8
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark6.90195
Satisfiable
(Un)Satisfiability was proved
Number of variables70
Number of clauses1491
Sum of the clauses size7455
Maximum clause length5
Minimum clause length5
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 51491
Number of clauses of size over 50

Solver Data (download as text)

0.01/0.02	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.01/0.02	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
0.01/0.02	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
0.01/0.02	c main()::
0.01/0.02	c initFormula():: searching for DIMACS p-line....
0.01/0.02	c full lookahead due to high density!
0.01/0.02	c initFormula():: the DIMACS p-line indicates a CNF of 70 variables and 1491 clauses.
0.01/0.02	c parseCNF():: parsing....
0.01/0.02	c parseCNF():: the CNF contains 0 unary clauses.
0.01/0.02	c runParser():: parsing was successful, warming up engines...
0.01/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.01/0.02	c preprocessing fase I completed:: there are now 70 free variables and 1491 clauses.
0.01/0.02	c stat :: sign balance is biased by 0.035
0.01/0.02	c shorten_equivalence(): average equivalence length reduced from nan to nan
0.01/0.02	c using k-SAT heuristics (size based diff)
0.01/0.02	c longest clause has size 5
0.01/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 7 duplicate clauses
0.01/0.02	c resolvent_look() :: found 6 resolvents
0.01/0.02	c main():: clause / variable ratio: ( 1497 / 70 ) = 21.39
0.01/0.02	c longest clause has size 5
0.01/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.01/0.02	c dynamic_preselect_setsize :: off
0.01/0.02	c suggested doublelook initial :: 0
0.01/0.02	c main():: all systems go!
0.01/0.02	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| 0 NC: 129 JD: 10
0.01/0.06	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |************************************
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c |***************************************************************
c |****************************************************************| 1 NC: 1003 JD: 10
0.29/0.32	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |*****************
c |******************
c |********************
c |************************
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c |****************************
c |*****************************
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c |*******************************
c |********************************
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c |***************************************************************
c |****************************************************************| 2 NC: 3760 JD: 10
1.10/1.12	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
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c |**********
c |************
c |*************
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c |***************
c |****************
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c |********************************
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c |***************************************************************
c |****************************************************************| 3 NC: 8717 JD: 10
2.49/2.58	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |*****
c |******
c |*******
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c |****************
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c |***************************************************************
c |****************************************************************| 4 NC: 14597 JD: 10
4.30/4.35	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
c |*******
c |********
c |*********
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c |************
c |*************
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c |***************
c |****************
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c |************************
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c |*******************************
c |********************************
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c |**********************************
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c |************************************
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c |********************************************************
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c |***************************************************************
c |****************************************************************| 5 NC: 19419 JD: 10
5.79/5.82	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
c |*******
c |********
c |*********
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c |************
c |*************
c |**************
c |***************
c |****************
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c |***********************
c |************************
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c |*******************************
c |********************************
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c |********************************************************
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c |****************************************************************| 6 NC: 21781 JD: 10
6.49/6.55	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
c |*******
c |********
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c |************
c |*************
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c |***************
c |****************
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c |********************************
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c |***********************************
c |************************************
c |*************************************
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c |****************************************
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c |***************************************************
c |****************************************************
c |*****************************************************
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c |**********************************************************
c |************************************************************
c |****************************************************************| 7 NC: 22576 JD: 10
6.79/6.83	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
c |*******
c |********
c |*********
c |**********
c |***********
c |************
c |*************
c |**************
c |****************
c |*****************
c |******************
c |*******************
c |********************
c |*********************
c |**********************
c |************************
c |*************************
c |**************************
c |****************************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |*************************************
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c |****************************************
c |*****************************************
c |******************************************
c |********************************************
c |************************************************
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c |****************************************************
c |********************************************************
c |****************************************************************| 8 NC: 22750 JD: 10
6.79/6.89	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
c |********
c |****************
c |*****************
c |******************
c |********************
c |************************
c |********************************
c |****************************************************************| 9 NC: 22779 JD: 10
6.89/6.90	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| 10 NC: 22782 JD: 10
6.89/6.90	c |----------------------------------------------------------------|
c |
6.89/6.90	c
6.89/6.90	c main():: nodeCount: 22782
6.89/6.90	c main():: dead ends in main: 41
6.89/6.90	c main():: lookAheadCount: 1801348
6.89/6.90	c main():: unitResolveCount: 54735
6.89/6.90	c main():: time=6.890000
6.89/6.90	c main():: necessary_assignments: 213
6.89/6.90	c main():: bin_sat: 0, bin_unsat 0
6.89/6.90	c main():: doublelook: #: 86996, succes #: 71539
6.89/6.90	c main():: doublelook: overall 4.910 of all possible doublelooks executed
6.89/6.90	c main():: doublelook: succesrate: 82.233, average DL_trigger: 20.438
6.89/6.90	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node58/watcher-371516-1177543723 -o ROOT/results/node58/solver-371516-1177543723 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/371516-1177543723/march_ks /tmp/evaluation/371516-1177543723/instance-371516-1177543723.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.70 0.94 0.75 3/64 23795
/proc/meminfo: memFree=1750792/2055920 swapFree=4184532/4192956
[pid=23795] ppid=23793 vsize=772 CPUtime=0
/proc/23795/stat : 23795 (march_ks) R 23793 23795 23065 0 -1 4194304 108 0 0 0 0 0 0 0 18 0 1 0 202282060 790528 91 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134561728 0 0 4096 0 0 0 0 17 1 0 0
/proc/23795/statm: 193 91 50 123 0 68 0

[startup+0.0210859 s]
/proc/loadavg: 0.70 0.94 0.75 3/64 23795
/proc/meminfo: memFree=1750792/2055920 swapFree=4184532/4192956
[pid=23795] ppid=23793 vsize=772 CPUtime=0.01
/proc/23795/stat : 23795 (march_ks) R 23793 23795 23065 0 -1 4194304 141 0 0 0 1 0 0 0 18 0 1 0 202282060 790528 124 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134536950 0 0 4096 0 0 0 0 17 1 0 0
/proc/23795/statm: 193 124 67 123 0 68 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 772

[startup+0.102097 s]
/proc/loadavg: 0.70 0.94 0.75 3/64 23795
/proc/meminfo: memFree=1750792/2055920 swapFree=4184532/4192956
[pid=23795] ppid=23793 vsize=908 CPUtime=0.09
/proc/23795/stat : 23795 (march_ks) R 23793 23795 23065 0 -1 4194304 167 0 0 0 9 0 0 0 18 0 1 0 202282060 929792 150 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134598217 0 0 4096 0 0 0 0 17 1 0 0
/proc/23795/statm: 227 150 72 123 0 102 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 908

[startup+0.302131 s]
/proc/loadavg: 0.70 0.94 0.75 3/64 23795
/proc/meminfo: memFree=1750792/2055920 swapFree=4184532/4192956
[pid=23795] ppid=23793 vsize=908 CPUtime=0.29
/proc/23795/stat : 23795 (march_ks) R 23793 23795 23065 0 -1 4194304 167 0 0 0 29 0 0 0 19 0 1 0 202282060 929792 150 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134537973 0 0 4096 0 0 0 0 17 1 0 0
/proc/23795/statm: 227 150 72 123 0 102 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 908

[startup+0.701198 s]
/proc/loadavg: 0.70 0.94 0.75 3/64 23795
/proc/meminfo: memFree=1750792/2055920 swapFree=4184532/4192956
[pid=23795] ppid=23793 vsize=908 CPUtime=0.69
/proc/23795/stat : 23795 (march_ks) R 23793 23795 23065 0 -1 4194304 167 0 0 0 69 0 0 0 22 0 1 0 202282060 929792 150 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134538565 0 0 4096 0 0 0 0 17 1 0 0
/proc/23795/statm: 227 150 72 123 0 102 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 908

[startup+1.50133 s]
/proc/loadavg: 0.70 0.94 0.75 2/65 23796
/proc/meminfo: memFree=1750464/2055920 swapFree=4184532/4192956
[pid=23795] ppid=23793 vsize=908 CPUtime=1.49
/proc/23795/stat : 23795 (march_ks) R 23793 23795 23065 0 -1 4194304 167 0 0 0 149 0 0 0 25 0 1 0 202282060 929792 150 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134541823 0 0 4096 0 0 0 0 17 1 0 0
/proc/23795/statm: 227 150 72 123 0 102 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 908

[startup+3.1016 s]
/proc/loadavg: 0.72 0.94 0.75 2/65 23796
/proc/meminfo: memFree=1750336/2055920 swapFree=4184532/4192956
[pid=23795] ppid=23793 vsize=908 CPUtime=3.09
/proc/23795/stat : 23795 (march_ks) R 23793 23795 23065 0 -1 4194304 167 0 0 0 309 0 0 0 25 0 1 0 202282060 929792 150 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134537989 0 0 4096 0 0 0 0 17 1 0 0
/proc/23795/statm: 227 150 72 123 0 102 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 908

[startup+6.30113 s]
/proc/loadavg: 0.72 0.94 0.75 2/65 23796
/proc/meminfo: memFree=1750208/2055920 swapFree=4184532/4192956
[pid=23795] ppid=23793 vsize=908 CPUtime=6.29
/proc/23795/stat : 23795 (march_ks) R 23793 23795 23065 0 -1 4194304 169 0 0 0 629 0 0 0 25 0 1 0 202282060 929792 152 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134526930 0 0 4096 0 0 0 0 17 1 0 0
/proc/23795/statm: 227 152 72 123 0 102 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 908

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

[startup+6.7012 s]
/proc/loadavg: 0.72 0.94 0.75 2/65 23796
/proc/meminfo: memFree=1750208/2055920 swapFree=4184532/4192956
[pid=23795] ppid=23793 vsize=908 CPUtime=6.69
/proc/23795/stat : 23795 (march_ks) R 23793 23795 23065 0 -1 4194304 170 0 0 0 669 0 0 0 25 0 1 0 202282060 929792 153 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134547704 0 0 4096 0 0 0 0 17 1 0 0
/proc/23795/statm: 227 153 72 123 0 102 0
Current children cumulated CPU time (s) 6.69
Current children cumulated vsize (KiB) 908

[startup+6.90123 s]
/proc/loadavg: 0.72 0.94 0.75 2/65 23796
/proc/meminfo: memFree=1750208/2055920 swapFree=4184532/4192956
[pid=23795] ppid=23793 vsize=908 CPUtime=6.89
/proc/23795/stat : 23795 (march_ks) R 23793 23795 23065 0 -1 4194304 171 0 0 0 689 0 0 0 25 0 1 0 202282060 929792 154 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134684125 0 0 4096 0 0 0 0 17 1 0 0
/proc/23795/statm: 227 154 72 123 0 102 0
Current children cumulated CPU time (s) 6.89
Current children cumulated vsize (KiB) 908

Child status: 20
Real time (s): 6.90716
CPU time (s): 6.90195
CPU user time (s): 6.89795
CPU system time (s): 0.003999
CPU usage (%): 99.9246
Max. virtual memory (cumulated for all children) (KiB): 908

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.89795
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 173
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= 8
involuntary context switches= 10

runsolver used 0.007998 second user time and 0.023996 second system time

The end

Launcher Data (download as text)

Begin job on node58 on Wed Apr 25 23:28:44 UTC 2007

IDJOB= 371516
IDBENCH= 19835
IDSOLVER= 180
FILE ID= node58/371516-1177543723

PBS_JOBID= 4695889

Free space on /tmp= 66462 MiB

SOLVER NAME= March KS 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/5SAT/v70/unif-k5-r21.3-v70-c1491-S1402143852-01.UNSAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/371516-1177543723/march_ks /tmp/evaluation/371516-1177543723/instance-371516-1177543723.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node58/watcher-371516-1177543723 -o ROOT/results/node58/solver-371516-1177543723 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/371516-1177543723/march_ks /tmp/evaluation/371516-1177543723/instance-371516-1177543723.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  0748b6663894d676be78ac8cb4ea38d8

RANDOM SEED= 495785433

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node58.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.265
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		: 3000.265
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:       1751200 kB
Buffers:         22176 kB
Cached:         170584 kB
SwapCached:       2604 kB
Active:         112424 kB
Inactive:       127916 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1751200 kB
SwapTotal:     4192956 kB
SwapFree:      4184532 kB
Dirty:            2408 kB
Writeback:           0 kB
Mapped:          53868 kB
Slab:            50356 kB
Committed_AS:  1168892 kB
PageTables:       1484 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= 66462 MiB

End job on node58 on Wed Apr 25 23:28:51 UTC 2007