Trace number 371485

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 2007-02-08SAT 25.9381 25.9457

General information on the benchmark

Namerandom/OnTreshold/5SAT/v80/
unif-k5-r21.3-v80-c1704-S256297823-16.SAT.shuffled.cnf
MD5SUM98acb22e903e1289d5e4bb5a28958843
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.155975
Satisfiable
(Un)Satisfiability was proved
Number of variables80
Number of clauses1704
Sum of the clauses size8520
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 51704
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.03	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.03	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
0.00/0.03	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
0.00/0.03	c main()::
0.00/0.03	c initFormula():: searching for DIMACS p-line....
0.00/0.03	c full lookahead due to high density!
0.00/0.03	c initFormula():: the DIMACS p-line indicates a CNF of 80 variables and 1704 clauses.
0.00/0.03	c parseCNF():: parsing....
0.00/0.03	c parseCNF():: the CNF contains 0 unary clauses.
0.00/0.03	c runParser():: parsing was successful, warming up engines...
0.00/0.03	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.03	c preprocessing fase I completed:: there are now 80 free variables and 1704 clauses.
0.00/0.03	c stat :: sign balance is biased by 0.034
0.00/0.03	c shorten_equivalence(): average equivalence length reduced from nan to nan
0.00/0.03	c using k-SAT heuristics (size based diff)
0.00/0.03	c longest clause has size 5
0.00/0.03	c simplify_formula():: removed 0 tautological, 0 satisfied and 6 duplicate clauses
0.00/0.03	c resolvent_look() :: found 6 resolvents
0.00/0.03	c main():: clause / variable ratio: ( 1710 / 80 ) = 21.38
0.00/0.03	c longest clause has size 5
0.00/0.03	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.03	c dynamic_preselect_setsize :: off
0.00/0.03	c suggested doublelook initial :: 0
0.00/0.03	c main():: all systems go!
0.00/0.03	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| 0 NC: 117 JD: 12
0.00/0.07	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
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c |****************************************************************| 1 NC: 1155 JD: 12
0.40/0.42	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
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c |******************
c |********************
c |************************
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c |********************************
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c |***************************************************************
c |****************************************************************| 2 NC: 6751 JD: 12
2.30/2.33	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 |********************************
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c |**************************************************************
c |***************************************************************
c |****************************************************************| 3 NC: 20937 JD: 12
7.19/7.23	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 |****************************************************************| 4 NC: 43062 JD: 12
14.89/14.93	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
c |*******
c |********
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c |************
c |*************
c |**************
c |***************
c |****************
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c |************************
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c |********************************
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c |************************************
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c |****************************************
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c |****************************************************************| 5 NC: 65339 JD: 12
22.68/22.75	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
c |*******
c |********
c |*********
c |**********
c |***********
c |************
c |*************
c |**************
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 |*******************************
c |********************************
25.88/25.94	c solution bin :: 011111000010.00100010000000000000
25.88/25.94	c direction branchin :: current_rights = 8
25.88/25.94	
c |********************************
25.88/25.94	c
25.88/25.94	c main():: nodeCount: 74193
25.88/25.94	c main():: dead ends in main: 105
25.88/25.94	c main():: lookAheadCount: 6751759
25.88/25.94	c main():: unitResolveCount: 184449
25.88/25.94	c main():: time=25.930000
25.88/25.94	c main():: necessary_assignments: 833
25.88/25.94	c main():: bin_sat: 0, bin_unsat 0
25.88/25.94	c main():: doublelook: #: 298983, succes #: 246032
25.88/25.94	c main():: doublelook: overall 4.496 of all possible doublelooks executed
25.88/25.94	c main():: doublelook: succesrate: 82.290, average DL_trigger: 22.165
25.88/25.94	c main():: SOLUTION VERIFIED :-)
25.88/25.94	s SATISFIABLE
25.88/25.94	v 1 2 -3 4 -5 6 -7 -8 9 -10 11 12 13 14 -15 -16 -17 -18 -19 20 -21 -22 -23 -24 -25 -26 -27 -28 29 30 31 -32 -33 34 -35 36 37 38 -39 -40 41 -42 43 -44 45 46 47 48 49 -50 51 52 53 -54 55 -56 57 -58 -59 60 -61 62 -63 64 65 66 -67 -68 -69 -70 71 72 -73 74 -75 76 77 78 -79 -80 0

Verifier Data (download as text)

OK

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node9/watcher-371485-1177543658 -o ROOT/results/node9/solver-371485-1177543658 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/371485-1177543658/march_ks /tmp/evaluation/371485-1177543658/instance-371485-1177543658.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: 0.91 0.95 0.77 3/77 15714
/proc/meminfo: memFree=1891240/2055920 swapFree=4144392/4192956
[pid=15714] ppid=15712 vsize=788 CPUtime=0
/proc/15714/stat : 15714 (march_ks) R 15712 15714 15349 0 -1 4194304 112 0 0 0 0 0 0 0 18 0 1 0 230403334 806912 95 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134561792 0 0 4096 0 0 0 0 17 1 0 0
/proc/15714/statm: 197 95 50 123 0 72 0

[startup+0.105669 s]
/proc/loadavg: 0.91 0.95 0.77 3/77 15714
/proc/meminfo: memFree=1891240/2055920 swapFree=4144392/4192956
[pid=15714] ppid=15712 vsize=920 CPUtime=0.1
/proc/15714/stat : 15714 (march_ks) R 15712 15714 15349 0 -1 4194304 176 0 0 0 10 0 0 0 18 0 1 0 230403334 942080 159 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134537979 0 0 4096 0 0 0 0 17 1 0 0
/proc/15714/statm: 230 159 72 123 0 105 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 920

[startup+0.201679 s]
/proc/loadavg: 0.91 0.95 0.77 3/77 15714
/proc/meminfo: memFree=1891240/2055920 swapFree=4144392/4192956
[pid=15714] ppid=15712 vsize=920 CPUtime=0.2
/proc/15714/stat : 15714 (march_ks) R 15712 15714 15349 0 -1 4194304 176 0 0 0 20 0 0 0 19 0 1 0 230403334 942080 159 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134526947 0 0 4096 0 0 0 0 17 1 0 0
/proc/15714/statm: 230 159 72 123 0 105 0
Current children cumulated CPU time (s) 0.2
Current children cumulated vsize (KiB) 920

[startup+0.301691 s]
/proc/loadavg: 0.91 0.95 0.77 3/77 15714
/proc/meminfo: memFree=1891240/2055920 swapFree=4144392/4192956
[pid=15714] ppid=15712 vsize=920 CPUtime=0.3
/proc/15714/stat : 15714 (march_ks) R 15712 15714 15349 0 -1 4194304 176 0 0 0 30 0 0 0 20 0 1 0 230403334 942080 159 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134526896 0 0 4096 0 0 0 0 17 1 0 0
/proc/15714/statm: 230 159 72 123 0 105 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 920

[startup+0.701735 s]
/proc/loadavg: 0.91 0.95 0.77 3/77 15714
/proc/meminfo: memFree=1891240/2055920 swapFree=4144392/4192956
[pid=15714] ppid=15712 vsize=920 CPUtime=0.7
/proc/15714/stat : 15714 (march_ks) R 15712 15714 15349 0 -1 4194304 176 0 0 0 70 0 0 0 23 0 1 0 230403334 942080 159 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134527006 0 0 4096 0 0 0 0 17 1 0 0
/proc/15714/statm: 230 159 72 123 0 105 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 920

[startup+1.50183 s]
/proc/loadavg: 0.91 0.95 0.77 2/78 15715
/proc/meminfo: memFree=1890720/2055920 swapFree=4144392/4192956
[pid=15714] ppid=15712 vsize=920 CPUtime=1.49
/proc/15714/stat : 15714 (march_ks) R 15712 15714 15349 0 -1 4194304 176 0 0 0 149 0 0 0 25 0 1 0 230403334 942080 159 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134585172 0 0 4096 0 0 0 0 17 1 0 0
/proc/15714/statm: 230 159 72 123 0 105 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 920

[startup+3.10301 s]
/proc/loadavg: 0.92 0.95 0.77 2/78 15715
/proc/meminfo: memFree=1890592/2055920 swapFree=4144392/4192956
[pid=15714] ppid=15712 vsize=920 CPUtime=3.09
/proc/15714/stat : 15714 (march_ks) R 15712 15714 15349 0 -1 4194304 176 0 0 0 309 0 0 0 25 0 1 0 230403334 942080 159 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134597206 0 0 4096 0 0 0 0 17 1 0 0
/proc/15714/statm: 230 159 72 123 0 105 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 920

[startup+6.30137 s]
/proc/loadavg: 0.92 0.95 0.77 2/78 15715
/proc/meminfo: memFree=1890592/2055920 swapFree=4144392/4192956
[pid=15714] ppid=15712 vsize=920 CPUtime=6.29
/proc/15714/stat : 15714 (march_ks) R 15712 15714 15349 0 -1 4194304 176 0 0 0 629 0 0 0 25 0 1 0 230403334 942080 159 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134527258 0 0 4096 0 0 0 0 17 1 0 0
/proc/15714/statm: 230 159 72 123 0 105 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 920

[startup+12.7011 s]
/proc/loadavg: 0.93 0.95 0.77 2/78 15715
/proc/meminfo: memFree=1890528/2055920 swapFree=4144392/4192956
[pid=15714] ppid=15712 vsize=1068 CPUtime=12.69
/proc/15714/stat : 15714 (march_ks) R 15712 15714 15349 0 -1 4194304 185 0 0 0 1269 0 0 0 25 0 1 0 230403334 1093632 168 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134527043 0 0 4096 0 0 0 0 17 1 0 0
/proc/15714/statm: 267 168 72 123 0 142 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1068

[startup+25.5015 s]
/proc/loadavg: 0.94 0.96 0.77 2/78 15715
/proc/meminfo: memFree=1890464/2055920 swapFree=4144392/4192956
[pid=15714] ppid=15712 vsize=1068 CPUtime=25.48
/proc/15714/stat : 15714 (march_ks) R 15712 15714 15349 0 -1 4194304 202 0 0 0 2548 0 0 0 25 0 1 0 230403334 1093632 185 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134537979 0 0 4096 0 0 0 0 17 1 0 0
/proc/15714/statm: 267 185 72 123 0 142 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1068

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

[startup+25.6016 s]
/proc/loadavg: 0.94 0.96 0.77 2/78 15715
/proc/meminfo: memFree=1890464/2055920 swapFree=4144392/4192956
[pid=15714] ppid=15712 vsize=1068 CPUtime=25.58
/proc/15714/stat : 15714 (march_ks) R 15712 15714 15349 0 -1 4194304 202 0 0 0 2558 0 0 0 25 0 1 0 230403334 1093632 185 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134536930 0 0 4096 0 0 0 0 17 1 0 0
/proc/15714/statm: 267 185 72 123 0 142 0
Current children cumulated CPU time (s) 25.58
Current children cumulated vsize (KiB) 1068

[startup+25.8016 s]
/proc/loadavg: 0.94 0.96 0.77 2/78 15715
/proc/meminfo: memFree=1890464/2055920 swapFree=4144392/4192956
[pid=15714] ppid=15712 vsize=1068 CPUtime=25.78
/proc/15714/stat : 15714 (march_ks) R 15712 15714 15349 0 -1 4194304 203 0 0 0 2578 0 0 0 25 0 1 0 230403334 1093632 186 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134598377 0 0 4096 0 0 0 0 17 1 0 0
/proc/15714/statm: 267 186 72 123 0 142 0
Current children cumulated CPU time (s) 25.78
Current children cumulated vsize (KiB) 1068

[startup+25.9016 s]
/proc/loadavg: 0.94 0.96 0.77 2/78 15715
/proc/meminfo: memFree=1890464/2055920 swapFree=4144392/4192956
[pid=15714] ppid=15712 vsize=1068 CPUtime=25.88
/proc/15714/stat : 15714 (march_ks) R 15712 15714 15349 0 -1 4194304 203 0 0 0 2588 0 0 0 25 0 1 0 230403334 1093632 186 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134538030 0 0 4096 0 0 0 0 17 1 0 0
/proc/15714/statm: 267 186 72 123 0 142 0
Current children cumulated CPU time (s) 25.88
Current children cumulated vsize (KiB) 1068

Child status: 10
Real time (s): 25.9457
CPU time (s): 25.9381
CPU user time (s): 25.9291
CPU system time (s): 0.008998
CPU usage (%): 99.9706
Max. virtual memory (cumulated for all children) (KiB): 1068

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 25.9291
system time used= 0.008998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 205
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= 568

runsolver used 0.017997 second user time and 0.077988 second system time

The end

Launcher Data (download as text)

Begin job on node9 on Wed Apr 25 23:27:38 UTC 2007

IDJOB= 371485
IDBENCH= 19820
IDSOLVER= 180
FILE ID= node9/371485-1177543658

PBS_JOBID= 4695876

Free space on /tmp= 66434 MiB

SOLVER NAME= March KS 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/5SAT/v80/unif-k5-r21.3-v80-c1704-S256297823-16.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/371485-1177543658/march_ks /tmp/evaluation/371485-1177543658/instance-371485-1177543658.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node9/watcher-371485-1177543658 -o ROOT/results/node9/solver-371485-1177543658 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/371485-1177543658/march_ks /tmp/evaluation/371485-1177543658/instance-371485-1177543658.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  98acb22e903e1289d5e4bb5a28958843

RANDOM SEED= 491696223

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node9.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		: 3000.221
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		: 3000.221
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:       1891584 kB
Buffers:         28580 kB
Cached:          48068 kB
SwapCached:      16444 kB
Active:          88572 kB
Inactive:        31976 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1891584 kB
SwapTotal:     4192956 kB
SwapFree:      4144392 kB
Dirty:            2308 kB
Writeback:           0 kB
Mapped:          49908 kB
Slab:            29232 kB
Committed_AS:  6634812 kB
PageTables:       1848 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= 66434 MiB

End job on node9 on Wed Apr 25 23:28:04 UTC 2007