Trace number 291844

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 42.9115 42.9245

General information on the benchmark

Namerandom/OnTreshold/5SAT/v80/
unif-k5-r21.3-v80-c1704-S1279127780-17.UNSAT.shuffled.cnf
MD5SUM7fdde2ec2d206698ff9f891232ef9afa
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark42.9115
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 0.049
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 5 duplicate clauses
0.00/0.03	c resolvent_look() :: found 3 resolvents
0.00/0.03	c main():: clause / variable ratio: ( 1707 / 80 ) = 21.34
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: 221 JD: 14
0.00/0.10	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 1 NC: 1197 JD: 14
0.41/0.42	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 2 NC: 5385 JD: 14
1.84/1.85	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 3 NC: 17393 JD: 14
5.93/5.95	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 4 NC: 39252 JD: 14
13.41/13.46	c |----------------------------------------------------------------|
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c |****************************************************************| 5 NC: 65953 JD: 14
22.83/22.92	c |----------------------------------------------------------------|
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c |****************************************************************| 6 NC: 89805 JD: 14
31.53/31.55	c |----------------------------------------------------------------|
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c |****************************************************************| 7 NC: 106028 JD: 14
37.57/37.66	c |----------------------------------------------------------------|
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c |****************************************************************| 8 NC: 114598 JD: 14
41.05/41.08	c |----------------------------------------------------------------|
c |*
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c |****
c |*****
c |******
c |*******
c |********
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c |****************************************************************| 9 NC: 117900 JD: 14
42.38/42.45	c |----------------------------------------------------------------|
c |*
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c |********************************************************
c |****************************************************************| 10 NC: 118747 JD: 14
42.80/42.83	c |----------------------------------------------------------------|
c |*
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c |************************
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c |****************************************************************| 11 NC: 118902 JD: 14
42.80/42.91	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 12 NC: 118921 JD: 14
42.90/42.92	c |----------------------------------------------------------------|
c |
42.90/42.92	c
42.90/42.92	c main():: nodeCount: 118921
42.90/42.92	c main():: dead ends in main: 164
42.90/42.92	c main():: lookAheadCount: 10804411
42.90/42.92	c main():: unitResolveCount: 336214
42.90/42.92	c main():: time=42.910000
42.90/42.92	c main():: necessary_assignments: 1397
42.90/42.92	c main():: bin_sat: 0, bin_unsat 0
42.90/42.92	c main():: doublelook: #: 494431, succes #: 409173
42.90/42.92	c main():: doublelook: overall 4.649 of all possible doublelooks executed
42.90/42.92	c main():: doublelook: succesrate: 82.756, average DL_trigger: 22.304
42.90/42.92	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/node68/watcher-291844-1171747319 -o ROOT/results/node68/solver-291844-1171747319 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/291844-1171747319/march_ks /tmp/evaluation/291844-1171747319/instance-291844-1171747319.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: 0.92 0.98 0.93 3/64 31790
/proc/meminfo: memFree=871272/2055920 swapFree=4183892/4192956
[pid=31790] ppid=31788 vsize=788 CPUtime=0
/proc/31790/stat : 31790 (march_ks) R 31788 31790 31334 0 -1 4194304 112 0 0 0 0 0 0 0 18 0 1 0 194689540 806912 94 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134687937 0 0 4096 0 0 0 0 17 1 0 0
/proc/31790/statm: 197 94 49 123 0 72 0

[startup+0.106185 s]
/proc/loadavg: 0.92 0.98 0.93 3/64 31790
/proc/meminfo: memFree=871272/2055920 swapFree=4183892/4192956
[pid=31790] ppid=31788 vsize=920 CPUtime=0.1
/proc/31790/stat : 31790 (march_ks) R 31788 31790 31334 0 -1 4194304 177 0 0 0 10 0 0 0 18 0 1 0 194689540 942080 159 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134538532 0 0 4096 0 0 0 0 17 1 0 0
/proc/31790/statm: 230 159 72 123 0 105 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 920

[startup+0.514222 s]
/proc/loadavg: 0.92 0.98 0.93 3/64 31790
/proc/meminfo: memFree=871272/2055920 swapFree=4183892/4192956
[pid=31790] ppid=31788 vsize=920 CPUtime=0.51
/proc/31790/stat : 31790 (march_ks) R 31788 31790 31334 0 -1 4194304 177 0 0 0 51 0 0 0 21 0 1 0 194689540 942080 159 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134537973 0 0 4096 0 0 0 0 17 1 0 0
/proc/31790/statm: 230 159 72 123 0 105 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 920

[startup+1.3343 s]
/proc/loadavg: 0.92 0.98 0.93 2/65 31791
/proc/meminfo: memFree=870888/2055920 swapFree=4183892/4192956
[pid=31790] ppid=31788 vsize=920 CPUtime=1.33
/proc/31790/stat : 31790 (march_ks) R 31788 31790 31334 0 -1 4194304 177 0 0 0 133 0 0 0 25 0 1 0 194689540 942080 159 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134585122 0 0 4096 0 0 0 0 17 1 0 0
/proc/31790/statm: 230 159 72 123 0 105 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 920

[startup+2.97044 s]
/proc/loadavg: 0.92 0.98 0.93 2/65 31791
/proc/meminfo: memFree=870760/2055920 swapFree=4183892/4192956
[pid=31790] ppid=31788 vsize=920 CPUtime=2.96
/proc/31790/stat : 31790 (march_ks) R 31788 31790 31334 0 -1 4194304 177 0 0 0 296 0 0 0 25 0 1 0 194689540 942080 159 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134587472 0 0 4096 0 0 0 0 17 1 0 0
/proc/31790/statm: 230 159 72 123 0 105 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 920

[startup+6.24674 s]
/proc/loadavg: 0.93 0.98 0.93 2/65 31791
/proc/meminfo: memFree=870632/2055920 swapFree=4183892/4192956
[pid=31790] ppid=31788 vsize=1060 CPUtime=6.24
/proc/31790/stat : 31790 (march_ks) R 31788 31790 31334 0 -1 4194304 181 0 0 0 624 0 0 0 25 0 1 0 194689540 1085440 163 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134526930 0 0 4096 0 0 0 0 17 1 0 0
/proc/31790/statm: 265 163 72 123 0 140 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 1060

[startup+12.7013 s]
/proc/loadavg: 0.93 0.98 0.93 2/65 31791
/proc/meminfo: memFree=870456/2055920 swapFree=4183892/4192956
[pid=31790] ppid=31788 vsize=1196 CPUtime=12.69
/proc/31790/stat : 31790 (march_ks) R 31788 31790 31334 0 -1 4194304 218 0 0 0 1269 0 0 0 25 0 1 0 194689540 1224704 200 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134526930 0 0 4096 0 0 0 0 17 1 0 0
/proc/31790/statm: 299 200 72 123 0 174 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1196

[startup+25.5055 s]
/proc/loadavg: 0.95 0.98 0.93 2/65 31791
/proc/meminfo: memFree=870392/2055920 swapFree=4183892/4192956
[pid=31790] ppid=31788 vsize=1364 CPUtime=25.49
/proc/31790/stat : 31790 (march_ks) R 31788 31790 31334 0 -1 4194304 257 0 0 0 2549 0 0 0 25 0 1 0 194689540 1396736 239 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134526930 0 0 4096 0 0 0 0 17 1 0 0
/proc/31790/statm: 341 239 72 123 0 216 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 1364

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

[startup+26.2226 s]
/proc/loadavg: 0.95 0.98 0.93 2/65 31791
/proc/meminfo: memFree=870328/2055920 swapFree=4183892/4192956
[pid=31790] ppid=31788 vsize=1364 CPUtime=26.21
/proc/31790/stat : 31790 (march_ks) R 31788 31790 31334 0 -1 4194304 260 0 0 0 2621 0 0 0 25 0 1 0 194689540 1396736 242 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134565456 0 0 4096 0 0 0 0 17 1 0 0
/proc/31790/statm: 341 242 72 123 0 216 0
Current children cumulated CPU time (s) 26.21
Current children cumulated vsize (KiB) 1364

[startup+32.7752 s]
/proc/loadavg: 0.95 0.98 0.93 2/65 31791
/proc/meminfo: memFree=870200/2055920 swapFree=4183892/4192956
[pid=31790] ppid=31788 vsize=1516 CPUtime=32.76
/proc/31790/stat : 31790 (march_ks) R 31788 31790 31334 0 -1 4194304 289 0 0 0 3276 0 0 0 25 0 1 0 194689540 1552384 271 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134526935 0 0 4096 0 0 0 0 17 1 0 0
/proc/31790/statm: 379 271 72 123 0 254 0
Current children cumulated CPU time (s) 32.76
Current children cumulated vsize (KiB) 1516

[startup+39.3268 s]
/proc/loadavg: 0.96 0.98 0.93 2/65 31791
/proc/meminfo: memFree=870136/2055920 swapFree=4183892/4192956
[pid=31790] ppid=31788 vsize=1744 CPUtime=39.31
/proc/31790/stat : 31790 (march_ks) R 31788 31790 31334 0 -1 4194304 323 0 0 0 3931 0 0 0 25 0 1 0 194689540 1785856 305 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134541763 0 0 4096 0 0 0 0 17 1 0 0
/proc/31790/statm: 436 305 72 123 0 311 0
Current children cumulated CPU time (s) 39.31
Current children cumulated vsize (KiB) 1744

[startup+40.9669 s]
/proc/loadavg: 0.96 0.98 0.93 2/65 31791
/proc/meminfo: memFree=870072/2055920 swapFree=4183892/4192956
[pid=31790] ppid=31788 vsize=1744 CPUtime=40.95
/proc/31790/stat : 31790 (march_ks) R 31788 31790 31334 0 -1 4194304 335 0 0 0 4095 0 0 0 25 0 1 0 194689540 1785856 317 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134526957 0 0 4096 0 0 0 0 17 1 0 0
/proc/31790/statm: 436 317 72 123 0 311 0
Current children cumulated CPU time (s) 40.95
Current children cumulated vsize (KiB) 1744

[startup+41.787 s]
/proc/loadavg: 0.96 0.98 0.93 2/65 31791
/proc/meminfo: memFree=870008/2055920 swapFree=4183892/4192956
[pid=31790] ppid=31788 vsize=1744 CPUtime=41.77
/proc/31790/stat : 31790 (march_ks) R 31788 31790 31334 0 -1 4194304 341 0 0 0 4177 0 0 0 25 0 1 0 194689540 1785856 323 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134677364 0 0 4096 0 0 0 0 17 1 0 0
/proc/31790/statm: 436 323 72 123 0 311 0
Current children cumulated CPU time (s) 41.77
Current children cumulated vsize (KiB) 1744

[startup+42.608 s]
/proc/loadavg: 0.96 0.98 0.93 2/65 31791
/proc/meminfo: memFree=870008/2055920 swapFree=4183892/4192956
[pid=31790] ppid=31788 vsize=1744 CPUtime=42.59
/proc/31790/stat : 31790 (march_ks) R 31788 31790 31334 0 -1 4194304 347 0 0 0 4259 0 0 0 25 0 1 0 194689540 1785856 329 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134541829 0 0 4096 0 0 0 0 17 1 0 0
/proc/31790/statm: 436 329 72 123 0 311 0
Current children cumulated CPU time (s) 42.59
Current children cumulated vsize (KiB) 1744

[startup+42.8131 s]
/proc/loadavg: 0.96 0.98 0.93 2/65 31791
/proc/meminfo: memFree=870008/2055920 swapFree=4183892/4192956
[pid=31790] ppid=31788 vsize=1744 CPUtime=42.8
/proc/31790/stat : 31790 (march_ks) R 31788 31790 31334 0 -1 4194304 349 0 0 0 4280 0 0 0 25 0 1 0 194689540 1785856 331 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134541844 0 0 4096 0 0 0 0 17 1 0 0
/proc/31790/statm: 436 331 72 123 0 311 0
Current children cumulated CPU time (s) 42.8
Current children cumulated vsize (KiB) 1744

[startup+42.9181 s]
/proc/loadavg: 0.96 0.98 0.93 2/65 31791
/proc/meminfo: memFree=870008/2055920 swapFree=4183892/4192956
[pid=31790] ppid=31788 vsize=1744 CPUtime=42.9
/proc/31790/stat : 31790 (march_ks) R 31788 31790 31334 0 -1 4194304 350 0 0 0 4290 0 0 0 25 0 1 0 194689540 1785856 332 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134537973 0 0 4096 0 0 0 0 17 1 0 0
/proc/31790/statm: 436 332 72 123 0 311 0
Current children cumulated CPU time (s) 42.9
Current children cumulated vsize (KiB) 1744

Child status: 20
Real time (s): 42.9245
CPU time (s): 42.9115
CPU user time (s): 42.9065
CPU system time (s): 0.004999
CPU usage (%): 99.9696
Max. virtual memory (cumulated for all children) (KiB): 1744

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 42.9065
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 352
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= 69

runsolver used 0.032994 second user time and 0.097985 second system time

The end

Launcher Data (download as text)

Begin job on node68 on Sat Feb 17 21:21:59 UTC 2007

IDJOB= 291844
IDBENCH= 19825
IDSOLVER= 111
FILE ID= node68/291844-1171747319

PBS_JOBID= 3839456

Free space on /tmp= 66562 MiB

SOLVER NAME= March KS 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/5SAT/v80/unif-k5-r21.3-v80-c1704-S1279127780-17.UNSAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/291844-1171747319/march_ks /tmp/evaluation/291844-1171747319/instance-291844-1171747319.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node68/watcher-291844-1171747319 -o ROOT/results/node68/solver-291844-1171747319 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/291844-1171747319/march_ks /tmp/evaluation/291844-1171747319/instance-291844-1171747319.cnf            

META MD5SUM SOLVER= cd0143c15836d32fe9acb8d523a59b67
MD5SUM BENCH=  7fdde2ec2d206698ff9f891232ef9afa

RANDOM SEED= 949294352

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node68.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		: 3000.234
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		: 3000.234
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:        871680 kB
Buffers:         38384 kB
Cached:        1050084 kB
SwapCached:       3000 kB
Active:         710556 kB
Inactive:       387872 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        871680 kB
SwapTotal:     4192956 kB
SwapFree:      4183892 kB
Dirty:            2288 kB
Writeback:           0 kB
Mapped:          15796 kB
Slab:            71892 kB
Committed_AS:   568212 kB
PageTables:       1380 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 node68 on Sat Feb 17 21:22:42 UTC 2007