Trace number 371481

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 37.9242 37.9367

General information on the benchmark

Namerandom/OnTreshold/5SAT/v80/
unif-k5-r21.3-v80-c1704-S1317485140-08.UNSAT.shuffled.cnf
MD5SUM09ba83c5bb0d24fb8b0cf9ee4e9590ec
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark37.9242
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 0.039
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 17 duplicate clauses
0.00/0.03	c resolvent_look() :: found 11 resolvents
0.00/0.03	c main():: clause / variable ratio: ( 1715 / 80 ) = 21.44
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: 158 JD: 13
0.05/0.08	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
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c |****************************************************************| 1 NC: 1099 JD: 13
0.30/0.39	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 2 NC: 5678 JD: 13
1.79/1.89	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 3 NC: 17762 JD: 13
5.89/5.99	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 4 NC: 37727 JD: 13
12.89/12.92	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 5 NC: 62630 JD: 13
21.59/21.61	c |----------------------------------------------------------------|
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c |****************************************************************| 6 NC: 84125 JD: 13
29.29/29.32	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 7 NC: 97650 JD: 13
34.28/34.34	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 8 NC: 103971 JD: 13
36.68/36.77	c |----------------------------------------------------------------|
c |*
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c |***
c |****
c |*****
c |******
c |*******
c |********
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c |****************************************************************| 9 NC: 106232 JD: 13
37.58/37.69	c |----------------------------------------------------------------|
c |*
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c |********************************************************
c |****************************************************************| 10 NC: 106688 JD: 13
37.78/37.89	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
c |********
c |*********
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c |****************
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c |************************
c |********************************
c |****************************************************************| 11 NC: 106746 JD: 13
37.88/37.93	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| 12 NC: 106750 JD: 13
37.88/37.93	c |----------------------------------------------------------------|
c |
37.88/37.93	c
37.88/37.93	c main():: nodeCount: 106750
37.88/37.93	c main():: dead ends in main: 141
37.88/37.93	c main():: lookAheadCount: 9636476
37.88/37.93	c main():: unitResolveCount: 284222
37.88/37.93	c main():: time=37.920000
37.88/37.93	c main():: necessary_assignments: 1280
37.88/37.93	c main():: bin_sat: 0, bin_unsat 0
37.88/37.93	c main():: doublelook: #: 435263, succes #: 359487
37.88/37.93	c main():: doublelook: overall 4.587 of all possible doublelooks executed
37.88/37.93	c main():: doublelook: succesrate: 82.591, average DL_trigger: 22.263
37.88/37.93	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/node24/watcher-371481-1177543644 -o ROOT/results/node24/solver-371481-1177543644 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/371481-1177543644/march_ks /tmp/evaluation/371481-1177543644/instance-371481-1177543644.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: 0.99 0.97 0.73 3/77 15562
/proc/meminfo: memFree=1599120/2055920 swapFree=4143328/4192956
[pid=15562] ppid=15560 vsize=788 CPUtime=0
/proc/15562/stat : 15562 (march_ks) R 15560 15562 15157 0 -1 4194304 112 0 0 0 0 0 0 0 18 0 1 0 202282485 806912 95 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134628856 0 0 4096 0 0 0 0 17 1 0 0
/proc/15562/statm: 197 95 50 123 0 72 0

[startup+0.059428 s]
/proc/loadavg: 0.99 0.97 0.73 3/77 15562
/proc/meminfo: memFree=1599120/2055920 swapFree=4143328/4192956
[pid=15562] ppid=15560 vsize=984 CPUtime=0.05
/proc/15562/stat : 15562 (march_ks) R 15560 15562 15157 0 -1 4194304 176 0 0 0 5 0 0 0 18 0 1 0 202282485 1007616 159 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134585127 0 0 4096 0 0 0 0 17 1 0 0
/proc/15562/statm: 246 159 72 123 0 121 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 984

[startup+0.102432 s]
/proc/loadavg: 0.99 0.97 0.73 3/77 15562
/proc/meminfo: memFree=1599120/2055920 swapFree=4143328/4192956
[pid=15562] ppid=15560 vsize=984 CPUtime=0.1
/proc/15562/stat : 15562 (march_ks) R 15560 15562 15157 0 -1 4194304 176 0 0 0 10 0 0 0 18 0 1 0 202282485 1007616 159 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134538413 0 0 4096 0 0 0 0 17 1 0 0
/proc/15562/statm: 246 159 72 123 0 121 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 984

[startup+0.301453 s]
/proc/loadavg: 0.99 0.97 0.73 3/77 15562
/proc/meminfo: memFree=1599120/2055920 swapFree=4143328/4192956
[pid=15562] ppid=15560 vsize=984 CPUtime=0.3
/proc/15562/stat : 15562 (march_ks) R 15560 15562 15157 0 -1 4194304 176 0 0 0 30 0 0 0 19 0 1 0 202282485 1007616 159 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134537989 0 0 4096 0 0 0 0 17 1 0 0
/proc/15562/statm: 246 159 72 123 0 121 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 984

[startup+0.702495 s]
/proc/loadavg: 0.99 0.97 0.73 3/77 15562
/proc/meminfo: memFree=1599120/2055920 swapFree=4143328/4192956
[pid=15562] ppid=15560 vsize=984 CPUtime=0.7
/proc/15562/stat : 15562 (march_ks) R 15560 15562 15157 0 -1 4194304 176 0 0 0 70 0 0 0 24 0 1 0 202282485 1007616 159 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134538152 0 0 4096 0 0 0 0 17 1 0 0
/proc/15562/statm: 246 159 72 123 0 121 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 984

[startup+1.50158 s]
/proc/loadavg: 0.99 0.97 0.73 2/78 15563
/proc/meminfo: memFree=1598728/2055920 swapFree=4143328/4192956
[pid=15562] ppid=15560 vsize=984 CPUtime=1.49
/proc/15562/stat : 15562 (march_ks) R 15560 15562 15157 0 -1 4194304 176 0 0 0 149 0 0 0 25 0 1 0 202282485 1007616 159 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134547915 0 0 4096 0 0 0 0 17 1 0 0
/proc/15562/statm: 246 159 72 123 0 121 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 984

[startup+3.10175 s]
/proc/loadavg: 0.99 0.97 0.73 2/78 15563
/proc/meminfo: memFree=1598600/2055920 swapFree=4143328/4192956
[pid=15562] ppid=15560 vsize=984 CPUtime=3.09
/proc/15562/stat : 15562 (march_ks) R 15560 15562 15157 0 -1 4194304 176 0 0 0 309 0 0 0 25 0 1 0 202282485 1007616 159 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134526930 0 0 4096 0 0 0 0 17 1 0 0
/proc/15562/statm: 246 159 72 123 0 121 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 984

[startup+6.30109 s]
/proc/loadavg: 0.99 0.97 0.74 2/78 15563
/proc/meminfo: memFree=1598600/2055920 swapFree=4143328/4192956
[pid=15562] ppid=15560 vsize=984 CPUtime=6.29
/proc/15562/stat : 15562 (march_ks) R 15560 15562 15157 0 -1 4194304 181 0 0 0 629 0 0 0 25 0 1 0 202282485 1007616 164 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134537989 0 0 4096 0 0 0 0 17 1 0 0
/proc/15562/statm: 246 164 72 123 0 121 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 984

[startup+12.7018 s]
/proc/loadavg: 0.99 0.97 0.74 2/78 15563
/proc/meminfo: memFree=1598536/2055920 swapFree=4143328/4192956
[pid=15562] ppid=15560 vsize=984 CPUtime=12.69
/proc/15562/stat : 15562 (march_ks) R 15560 15562 15157 0 -1 4194304 192 0 0 0 1269 0 0 0 25 0 1 0 202282485 1007616 175 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134596459 0 0 4096 0 0 0 0 17 1 0 0
/proc/15562/statm: 246 175 72 123 0 121 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 984

[startup+25.5011 s]
/proc/loadavg: 0.99 0.97 0.74 2/78 15563
/proc/meminfo: memFree=1598408/2055920 swapFree=4143328/4192956
[pid=15562] ppid=15560 vsize=1188 CPUtime=25.49
/proc/15562/stat : 15562 (march_ks) R 15560 15562 15157 0 -1 4194304 241 0 0 0 2549 0 0 0 25 0 1 0 202282485 1216512 224 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134628797 0 0 4096 0 0 0 0 17 1 0 0
/proc/15562/statm: 297 224 72 123 0 172 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 1188

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

[startup+31.9058 s]
/proc/loadavg: 0.99 0.97 0.74 2/78 15563
/proc/meminfo: memFree=1598344/2055920 swapFree=4143328/4192956
[pid=15562] ppid=15560 vsize=1288 CPUtime=31.89
/proc/15562/stat : 15562 (march_ks) R 15560 15562 15157 0 -1 4194304 259 0 0 0 3189 0 0 0 25 0 1 0 202282485 1318912 242 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134526957 0 0 4096 0 0 0 0 17 1 0 0
/proc/15562/statm: 322 242 72 123 0 197 0
Current children cumulated CPU time (s) 31.89
Current children cumulated vsize (KiB) 1288

[startup+35.1012 s]
/proc/loadavg: 0.99 0.97 0.74 2/78 15563
/proc/meminfo: memFree=1598280/2055920 swapFree=4143328/4192956
[pid=15562] ppid=15560 vsize=1440 CPUtime=35.09
/proc/15562/stat : 15562 (march_ks) R 15560 15562 15157 0 -1 4194304 270 0 0 0 3509 0 0 0 25 0 1 0 202282485 1474560 253 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134526901 0 0 4096 0 0 0 0 17 1 0 0
/proc/15562/statm: 360 253 72 123 0 235 0
Current children cumulated CPU time (s) 35.09
Current children cumulated vsize (KiB) 1440

[startup+36.7013 s]
/proc/loadavg: 0.99 0.97 0.74 2/78 15563
/proc/meminfo: memFree=1598280/2055920 swapFree=4143328/4192956
[pid=15562] ppid=15560 vsize=1440 CPUtime=36.68
/proc/15562/stat : 15562 (march_ks) R 15560 15562 15157 0 -1 4194304 277 0 0 0 3668 0 0 0 25 0 1 0 202282485 1474560 260 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134526957 0 0 4096 0 0 0 0 17 1 0 0
/proc/15562/statm: 360 260 72 123 0 235 0
Current children cumulated CPU time (s) 36.68
Current children cumulated vsize (KiB) 1440

[startup+37.5014 s]
/proc/loadavg: 0.99 0.97 0.74 2/78 15563
/proc/meminfo: memFree=1598216/2055920 swapFree=4143328/4192956
[pid=15562] ppid=15560 vsize=1440 CPUtime=37.48
/proc/15562/stat : 15562 (march_ks) R 15560 15562 15157 0 -1 4194304 281 0 0 0 3748 0 0 0 25 0 1 0 202282485 1474560 264 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134565484 0 0 4096 0 0 0 0 17 1 0 0
/proc/15562/statm: 360 264 72 123 0 235 0
Current children cumulated CPU time (s) 37.48
Current children cumulated vsize (KiB) 1440

[startup+37.9015 s]
/proc/loadavg: 0.99 0.97 0.74 2/78 15563
/proc/meminfo: memFree=1598216/2055920 swapFree=4143328/4192956
[pid=15562] ppid=15560 vsize=1440 CPUtime=37.88
/proc/15562/stat : 15562 (march_ks) R 15560 15562 15157 0 -1 4194304 283 0 0 0 3788 0 0 0 25 0 1 0 202282485 1474560 266 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134541814 0 0 4096 0 0 0 0 17 1 0 0
/proc/15562/statm: 360 266 72 123 0 235 0
Current children cumulated CPU time (s) 37.88
Current children cumulated vsize (KiB) 1440

Child status: 20
Real time (s): 37.9367
CPU time (s): 37.9242
CPU user time (s): 37.9212
CPU system time (s): 0.002999
CPU usage (%): 99.9671
Max. virtual memory (cumulated for all children) (KiB): 1440

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 37.9212
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 285
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= 7
involuntary context switches= 800

runsolver used 0.038994 second user time and 0.092985 second system time

The end

Launcher Data (download as text)

Begin job on node24 on Wed Apr 25 23:27:25 UTC 2007

IDJOB= 371481
IDBENCH= 19818
IDSOLVER= 180
FILE ID= node24/371481-1177543644

PBS_JOBID= 4695928

Free space on /tmp= 66250 MiB

SOLVER NAME= March KS 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/5SAT/v80/unif-k5-r21.3-v80-c1704-S1317485140-08.UNSAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/371481-1177543644/march_ks /tmp/evaluation/371481-1177543644/instance-371481-1177543644.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node24/watcher-371481-1177543644 -o ROOT/results/node24/solver-371481-1177543644 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/371481-1177543644/march_ks /tmp/evaluation/371481-1177543644/instance-371481-1177543644.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  09ba83c5bb0d24fb8b0cf9ee4e9590ec

RANDOM SEED= 622410022

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node24.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		: 3000.238
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		: 3000.238
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:       1599592 kB
Buffers:         46044 kB
Cached:         286372 kB
SwapCached:      17512 kB
Active:         228684 kB
Inactive:       164892 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1599592 kB
SwapTotal:     4192956 kB
SwapFree:      4143328 kB
Dirty:            2384 kB
Writeback:           0 kB
Mapped:          67700 kB
Slab:            48128 kB
Committed_AS:  3835652 kB
PageTables:       1952 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= 66250 MiB

End job on node24 on Wed Apr 25 23:28:03 UTC 2007