Trace number 298568

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 33.6299 33.6416

General information on the benchmark

Namerandom/OnTreshold/3SAT/v360/
unif-k3-r4.26-v360-c1533-S1373941726-12.UNSAT.shuffled.cnf
MD5SUMba211b00665e5525ca8dfbd839bb6bc4
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark24.5363
Satisfiable
(Un)Satisfiability was proved
Number of variables360
Number of clauses1533
Sum of the clauses size4599
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31533
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.01	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.01	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
0.00/0.01	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
0.00/0.01	c main()::
0.00/0.01	c initFormula():: searching for DIMACS p-line....
0.00/0.01	c initFormula():: the DIMACS p-line indicates a CNF of 360 variables and 1533 clauses.
0.00/0.01	c parseCNF():: parsing....
0.00/0.01	c parseCNF():: the CNF contains 0 unary clauses.
0.00/0.01	c runParser():: parsing was successful, warming up engines...
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 360 free variables and 1533 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.438
0.00/0.01	c shorten_equivalence(): average equivalence length reduced from nan to nan
0.00/0.01	c using 3-SAT heuristics (occurence based diff)
0.00/0.01	c longest clause has size 3
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 182 duplicate clauses
0.00/0.01	c resolvent_look() :: found 109 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 360 variables and 1642 clauses.
0.00/0.01	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.00/0.01	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.00/0.01	c transformTo3SAT():: the transformation yielded 360 variabels and 1642 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1642 / 360 ) = 4.56
0.00/0.01	c longest clause has size 3
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.01	c dynamic_preselect_setsize :: off
0.00/0.01	c suggested doublelook initial :: 0
0.00/0.01	c main():: all systems go!
0.00/0.01	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| 0 NC: 117 JD: 14
0.00/0.05	c |----------------------------------------------------------------|
c |*
c |**
c |****
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c |****************
c |********************************
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c |****************************************************************| 1 NC: 921 JD: 14
0.30/0.36	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 2 NC: 4559 JD: 14
1.73/1.81	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 3 NC: 13663 JD: 14
5.52/5.58	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 4 NC: 29741 JD: 14
12.27/12.33	c |----------------------------------------------------------------|
c |*
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c |****
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c |****************************************************************| 5 NC: 47013 JD: 14
19.65/19.71	c |----------------------------------------------------------------|
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c |****************************************************************| 6 NC: 61853 JD: 14
26.10/26.20	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 7 NC: 71293 JD: 14
30.40/30.50	c |----------------------------------------------------------------|
c |*
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c |***************************************************************
c |****************************************************************| 8 NC: 75865 JD: 14
32.55/32.64	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
c |*******
c |********
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c |********************************************************
c |****************************************************************| 9 NC: 77449 JD: 14
33.37/33.41	c |----------------------------------------------------------------|
c |*
c |**
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c |****
c |*****
c |******
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c |********
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c |************************
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c |****************************************************************| 10 NC: 77807 JD: 14
33.57/33.60	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
c |*******
c |********
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c |************
c |****************
c |*****************
c |******************
c |********************
c |************************
c |********************************
c |****************************************************************| 11 NC: 77865 JD: 14
33.57/33.63	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |*****
c |******
c |********
c |****************
c |********************************
c |****************************************************************| 12 NC: 77881 JD: 14
33.57/33.63	c |----------------------------------------------------------------|
c |
33.57/33.63	c
33.57/33.63	c main():: nodeCount: 77881
33.57/33.63	c main():: dead ends in main: 2505
33.57/33.63	c main():: lookAheadCount: 4989380
33.57/33.63	c main():: unitResolveCount: 1003984
33.57/33.63	c main():: time=33.620000
33.57/33.63	c main():: necessary_assignments: 17893
33.57/33.63	c main():: bin_sat: 0, bin_unsat 0
33.57/33.63	c main():: doublelook: #: 316241, succes #: 236105
33.57/33.63	c main():: doublelook: overall 6.595 of all possible doublelooks executed
33.57/33.63	c main():: doublelook: succesrate: 74.660, average DL_trigger: 6014.544
33.57/33.63	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node63/watcher-298568-1171858298 -o ROOT/results/node63/solver-298568-1171858298 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/298568-1171858298/march_ks /tmp/evaluation/298568-1171858298/instance-298568-1171858298.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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: 1.84 1.85 1.48 3/64 25858
/proc/meminfo: memFree=514968/2055920 swapFree=4183348/4192956
[pid=25858] ppid=25856 vsize=792 CPUtime=0
/proc/25858/stat : 25858 (march_ks) R 25856 25858 24617 0 -1 4194304 120 0 0 0 0 0 0 0 18 0 1 0 205787163 811008 102 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134532912 0 0 4096 0 0 0 0 17 1 0 0
/proc/25858/statm: 198 102 52 123 0 73 0

[startup+0.106132 s]
/proc/loadavg: 1.84 1.85 1.48 3/64 25858
/proc/meminfo: memFree=514968/2055920 swapFree=4183348/4192956
[pid=25858] ppid=25856 vsize=1096 CPUtime=0.1
/proc/25858/stat : 25858 (march_ks) R 25856 25858 24617 0 -1 4194304 231 0 0 0 10 0 0 0 18 0 1 0 205787163 1122304 213 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134597295 0 0 4096 0 0 0 0 17 1 0 0
/proc/25858/statm: 274 213 73 123 0 149 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1096

[startup+0.514175 s]
/proc/loadavg: 1.84 1.85 1.48 3/64 25858
/proc/meminfo: memFree=514968/2055920 swapFree=4183348/4192956
[pid=25858] ppid=25856 vsize=1228 CPUtime=0.5
/proc/25858/stat : 25858 (march_ks) R 25856 25858 24617 0 -1 4194304 246 0 0 0 50 0 0 0 21 0 1 0 205787163 1257472 228 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134543052 0 0 4096 0 0 0 0 17 1 0 0
/proc/25858/statm: 307 228 73 123 0 182 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 1228

[startup+1.33426 s]
/proc/loadavg: 1.84 1.85 1.48 2/65 25859
/proc/meminfo: memFree=514256/2055920 swapFree=4183348/4192956
[pid=25858] ppid=25856 vsize=1228 CPUtime=1.32
/proc/25858/stat : 25858 (march_ks) R 25856 25858 24617 0 -1 4194304 259 0 0 0 132 0 0 0 25 0 1 0 205787163 1257472 241 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134598179 0 0 4096 0 0 0 0 17 1 0 0
/proc/25858/statm: 307 241 73 123 0 182 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 1228

[startup+2.97044 s]
/proc/loadavg: 1.84 1.85 1.48 2/65 25859
/proc/meminfo: memFree=514064/2055920 swapFree=4183348/4192956
[pid=25858] ppid=25856 vsize=1372 CPUtime=2.96
/proc/25858/stat : 25858 (march_ks) R 25856 25858 24617 0 -1 4194304 270 0 0 0 296 0 0 0 25 0 1 0 205787163 1404928 252 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134538202 0 0 4096 0 0 0 0 17 1 0 0
/proc/25858/statm: 343 252 73 123 0 218 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 1372

[startup+6.24679 s]
/proc/loadavg: 1.77 1.84 1.47 2/65 25859
/proc/meminfo: memFree=513936/2055920 swapFree=4183348/4192956
[pid=25858] ppid=25856 vsize=1372 CPUtime=6.23
/proc/25858/stat : 25858 (march_ks) R 25856 25858 24617 0 -1 4194304 286 0 0 0 623 0 0 0 25 0 1 0 205787163 1404928 268 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134538131 0 0 4096 0 0 0 0 17 1 0 0
/proc/25858/statm: 343 268 73 123 0 218 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 1372

[startup+12.7015 s]
/proc/loadavg: 1.71 1.82 1.47 2/65 25859
/proc/meminfo: memFree=513688/2055920 swapFree=4183348/4192956
[pid=25858] ppid=25856 vsize=1508 CPUtime=12.68
/proc/25858/stat : 25858 (march_ks) R 25856 25858 24617 0 -1 4194304 323 0 0 0 1268 0 0 0 25 0 1 0 205787163 1544192 305 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134597190 0 0 4096 0 0 0 0 17 1 0 0
/proc/25858/statm: 377 305 73 123 0 252 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 1508

[startup+25.5058 s]
/proc/loadavg: 1.55 1.78 1.46 2/65 25859
/proc/meminfo: memFree=513560/2055920 swapFree=4183348/4192956
[pid=25858] ppid=25856 vsize=1676 CPUtime=25.49
/proc/25858/stat : 25858 (march_ks) R 25856 25858 24617 0 -1 4194304 369 0 0 0 2549 0 0 0 25 0 1 0 205787163 1716224 351 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134577543 0 0 4096 0 0 0 0 17 1 0 0
/proc/25858/statm: 419 351 73 123 0 294 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 1676

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

[startup+26.2239 s]
/proc/loadavg: 1.55 1.78 1.46 2/65 25859
/proc/meminfo: memFree=513560/2055920 swapFree=4183348/4192956
[pid=25858] ppid=25856 vsize=1828 CPUtime=26.2
/proc/25858/stat : 25858 (march_ks) R 25856 25858 24617 0 -1 4194304 372 0 0 0 2620 0 0 0 25 0 1 0 205787163 1871872 354 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134526441 0 0 4096 0 0 0 0 17 1 0 0
/proc/25858/statm: 457 354 73 123 0 332 0
Current children cumulated CPU time (s) 26.2
Current children cumulated vsize (KiB) 1828

[startup+29.5003 s]
/proc/loadavg: 1.55 1.78 1.46 2/65 25859
/proc/meminfo: memFree=513432/2055920 swapFree=4183348/4192956
[pid=25858] ppid=25856 vsize=1828 CPUtime=29.48
/proc/25858/stat : 25858 (march_ks) R 25856 25858 24617 0 -1 4194304 388 0 0 0 2948 0 0 0 25 0 1 0 205787163 1871872 370 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134526404 0 0 4096 0 0 0 0 17 1 0 0
/proc/25858/statm: 457 370 73 123 0 332 0
Current children cumulated CPU time (s) 29.48
Current children cumulated vsize (KiB) 1828

[startup+31.1364 s]
/proc/loadavg: 1.51 1.77 1.46 2/65 25859
/proc/meminfo: memFree=513432/2055920 swapFree=4183348/4192956
[pid=25858] ppid=25856 vsize=1828 CPUtime=31.11
/proc/25858/stat : 25858 (march_ks) R 25856 25858 24617 0 -1 4194304 396 0 0 0 3111 0 0 0 25 0 1 0 205787163 1871872 378 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134526505 0 0 4096 0 0 0 0 17 1 0 0
/proc/25858/statm: 457 378 73 123 0 332 0
Current children cumulated CPU time (s) 31.11
Current children cumulated vsize (KiB) 1828

[startup+32.7796 s]
/proc/loadavg: 1.51 1.77 1.46 2/65 25859
/proc/meminfo: memFree=513368/2055920 swapFree=4183348/4192956
[pid=25858] ppid=25856 vsize=1828 CPUtime=32.76
/proc/25858/stat : 25858 (march_ks) R 25856 25858 24617 0 -1 4194304 406 0 0 0 3276 0 0 0 25 0 1 0 205787163 1871872 388 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134526533 0 0 4096 0 0 0 0 17 1 0 0
/proc/25858/statm: 457 388 73 123 0 332 0
Current children cumulated CPU time (s) 32.76
Current children cumulated vsize (KiB) 1828

[startup+33.1887 s]
/proc/loadavg: 1.51 1.77 1.46 2/65 25859
/proc/meminfo: memFree=513368/2055920 swapFree=4183348/4192956
[pid=25858] ppid=25856 vsize=1828 CPUtime=33.17
/proc/25858/stat : 25858 (march_ks) R 25856 25858 24617 0 -1 4194304 408 0 0 0 3317 0 0 0 25 0 1 0 205787163 1871872 390 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134526443 0 0 4096 0 0 0 0 17 1 0 0
/proc/25858/statm: 457 390 73 123 0 332 0
Current children cumulated CPU time (s) 33.17
Current children cumulated vsize (KiB) 1828

[startup+33.5967 s]
/proc/loadavg: 1.51 1.77 1.46 2/65 25859
/proc/meminfo: memFree=513368/2055920 swapFree=4183348/4192956
[pid=25858] ppid=25856 vsize=2056 CPUtime=33.57
/proc/25858/stat : 25858 (march_ks) R 25856 25858 24617 0 -1 4194304 412 0 0 0 3357 0 0 0 25 0 1 0 205787163 2105344 394 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134684125 0 0 4096 0 0 0 0 17 1 0 0
/proc/25858/statm: 514 394 73 123 0 389 0
Current children cumulated CPU time (s) 33.57
Current children cumulated vsize (KiB) 2056

Child status: 20
Real time (s): 33.6416
CPU time (s): 33.6299
CPU user time (s): 33.6219
CPU system time (s): 0.007998
CPU usage (%): 99.9651
Max. virtual memory (cumulated for all children) (KiB): 2056

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 33.6219
system time used= 0.007998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 413
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= 83

runsolver used 0.031995 second user time and 0.084987 second system time

The end

Launcher Data (download as text)

Begin job on node63 on Mon Feb 19 04:11:38 UTC 2007

IDJOB= 298568
IDBENCH= 19989
IDSOLVER= 111
FILE ID= node63/298568-1171858298

PBS_JOBID= 3839734

Free space on /tmp= 66562 MiB

SOLVER NAME= March KS 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v360/unif-k3-r4.26-v360-c1533-S1373941726-12.UNSAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/298568-1171858298/march_ks /tmp/evaluation/298568-1171858298/instance-298568-1171858298.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node63/watcher-298568-1171858298 -o ROOT/results/node63/solver-298568-1171858298 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/298568-1171858298/march_ks /tmp/evaluation/298568-1171858298/instance-298568-1171858298.cnf            

META MD5SUM SOLVER= cd0143c15836d32fe9acb8d523a59b67
MD5SUM BENCH=  ba211b00665e5525ca8dfbd839bb6bc4

RANDOM SEED= 630072743

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node63.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		: 3000.214
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		: 3000.214
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:        515376 kB
Buffers:         49384 kB
Cached:        1368528 kB
SwapCached:       3968 kB
Active:         789484 kB
Inactive:       638396 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        515376 kB
SwapTotal:     4192956 kB
SwapFree:      4183348 kB
Dirty:            2280 kB
Writeback:           0 kB
Mapped:          15492 kB
Slab:            98644 kB
Committed_AS:   532696 kB
PageTables:       1460 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= 66562 MiB

End job on node63 on Mon Feb 19 04:12:12 UTC 2007