Trace number 1517882

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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_nn nnUNSAT 36.2915 36.3076

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/UNKNOWN/380/
unif-k3-r4.25-v380-c1615-S502087726-095.cnf
MD5SUM19585c969548ec91e42795356f5c76b1
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark32.759
Satisfiable
(Un)Satisfiability was proved
Number of variables380
Number of clauses1615
Sum of the clauses size4845
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31615
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.01	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.01	c main()::  **                Copyright (C) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
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 380 variables and 1615 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 380 free variables and 1615 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.426
0.00/0.01	c using 3-SAT heuristics (occurence based diff)
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 147 duplicate clauses
0.00/0.01	c resolvent_look() :: found 75 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 380 variables and 1690 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 380 variabels and 1690 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1690 / 380 ) = 4.45
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 number of free variables = 380
0.00/0.01	c dynamic_preselect_setsize :: off
0.00/0.01	c main():: all systems go!
0.00/0.01	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| ( 0/999) NodeCount: 24
0.00/0.02	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 1/999) NodeCount: 266
0.07/0.08	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 2/999) NodeCount: 1592
0.49/0.51	c |----------------------------------------------------------------|
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c |****************************************************************| ( 3/999) NodeCount: 6153
2.20/2.23	c |----------------------------------------------------------------|
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c |****************************************************************| ( 4/999) NodeCount: 16658
6.69/6.77	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 5/999) NodeCount: 33142
14.78/14.88	c |----------------------------------------------------------------|
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c |****************************************************************| ( 6/999) NodeCount: 50470
24.28/24.34	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 7/999) NodeCount: 62674
31.38/31.49	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 8/999) NodeCount: 68354
34.98/35.02	c |----------------------------------------------------------------|
c |*
c |**
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c |****
c |*****
c |******
c |*******
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c |************
c |*************
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c |****************
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c |********************************
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c |****************************************************************| ( 9/999) NodeCount: 70002
36.08/36.10	c |----------------------------------------------------------------|
c |*
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c |****
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c |****************
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c |****************************************************************| (10/999) NodeCount: 70273
36.18/36.28	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 |***********************
c |************************
c |********************************
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c |****************************************************************| (11/999) NodeCount: 70295
36.28/36.30	c |----------------------------------------------------------------|
c |
36.28/36.30	c
36.28/36.30	c main():: nodeCount: 70295
36.28/36.30	c main():: dead ends in main: 1370
36.28/36.30	c main():: lookAheadCount: 4773675
36.28/36.30	c main():: unitResolveCount: 1136889
36.28/36.30	c main():: time=36.290000
36.28/36.30	c main():: necessary_assignments: 13796
36.28/36.30	c main():: bin_sat: 0, bin_unsat 0
36.28/36.30	c main():: doublelook: #: 280055, succes #: 202752
36.28/36.30	c main():: doublelook: overall 6.063 of all possible doublelooks executed
36.28/36.30	c main():: doublelook: succesrate: 72.397, average DL_trigger: 48.016
36.28/36.30	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1517882-1238292428/watcher-1517882-1238292428 -o /tmp/evaluation-result-1517882-1238292428/solver-1517882-1238292428 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1517882-1238292428.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 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: 1.08 1.02 1.00 3/64 426
/proc/meminfo: memFree=1256864/2055920 swapFree=4178784/4192956
[pid=426] ppid=424 vsize=972 CPUtime=0
/proc/426/stat : 426 (march_nn) R 424 426 32159 0 -1 4194304 138 0 0 0 0 0 0 0 18 0 1 0 1101904581 995328 121 1992294400 134512640 135197250 4294956240 18446744073709551615 134535888 0 0 4096 0 0 0 0 17 1 0 0
/proc/426/statm: 243 121 67 167 0 74 0

[startup+0.0807011 s]
/proc/loadavg: 1.08 1.02 1.00 3/64 426
/proc/meminfo: memFree=1256864/2055920 swapFree=4178784/4192956
[pid=426] ppid=424 vsize=1536 CPUtime=0.07
/proc/426/stat : 426 (march_nn) R 424 426 32159 0 -1 4194304 250 0 0 0 7 0 0 0 18 0 1 0 1101904581 1572864 233 1992294400 134512640 135197250 4294956240 18446744073709551615 134542165 0 0 4096 0 0 0 0 17 1 0 0
/proc/426/statm: 384 233 93 167 0 215 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1536

[startup+0.101702 s]
/proc/loadavg: 1.08 1.02 1.00 3/64 426
/proc/meminfo: memFree=1256864/2055920 swapFree=4178784/4192956
[pid=426] ppid=424 vsize=1536 CPUtime=0.1
/proc/426/stat : 426 (march_nn) R 424 426 32159 0 -1 4194304 250 0 0 0 10 0 0 0 18 0 1 0 1101904581 1572864 233 1992294400 134512640 135197250 4294956240 18446744073709551615 134556471 0 0 4096 0 0 0 0 17 1 0 0
/proc/426/statm: 384 233 93 167 0 215 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1536

[startup+0.301719 s]
/proc/loadavg: 1.08 1.02 1.00 3/64 426
/proc/meminfo: memFree=1256864/2055920 swapFree=4178784/4192956
[pid=426] ppid=424 vsize=1536 CPUtime=0.29
/proc/426/stat : 426 (march_nn) R 424 426 32159 0 -1 4194304 263 0 0 0 29 0 0 0 19 0 1 0 1101904581 1572864 246 1992294400 134512640 135197250 4294956240 18446744073709551615 134539266 0 0 4096 0 0 0 0 17 1 0 0
/proc/426/statm: 384 246 93 167 0 215 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1536

[startup+0.701754 s]
/proc/loadavg: 1.08 1.02 1.00 3/64 426
/proc/meminfo: memFree=1256864/2055920 swapFree=4178784/4192956
[pid=426] ppid=424 vsize=1676 CPUtime=0.69
/proc/426/stat : 426 (march_nn) R 424 426 32159 0 -1 4194304 286 0 0 0 69 0 0 0 22 0 1 0 1101904581 1716224 269 1992294400 134512640 135197250 4294956240 18446744073709551615 134552490 0 0 4096 0 0 0 0 17 1 0 0
/proc/426/statm: 419 269 93 167 0 250 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1676

[startup+1.50182 s]
/proc/loadavg: 1.08 1.02 1.00 2/65 427
/proc/meminfo: memFree=1256088/2055920 swapFree=4178784/4192956
[pid=426] ppid=424 vsize=1812 CPUtime=1.49
/proc/426/stat : 426 (march_nn) R 424 426 32159 0 -1 4194304 325 0 0 0 149 0 0 0 25 0 1 0 1101904581 1855488 308 1992294400 134512640 135197250 4294956240 18446744073709551615 134541942 0 0 4096 0 0 0 0 17 1 0 0
/proc/426/statm: 453 308 93 167 0 284 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1812

[startup+3.10196 s]
/proc/loadavg: 1.08 1.01 1.00 2/65 427
/proc/meminfo: memFree=1255768/2055920 swapFree=4178784/4192956
[pid=426] ppid=424 vsize=1880 CPUtime=3.09
/proc/426/stat : 426 (march_nn) R 424 426 32159 0 -1 4194304 349 0 0 0 309 0 0 0 25 0 1 0 1101904581 1925120 332 1992294400 134512640 135197250 4294956240 18446744073709551615 134594054 0 0 4096 0 0 0 0 17 1 0 0
/proc/426/statm: 470 332 93 167 0 301 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1880

[startup+6.30124 s]
/proc/loadavg: 1.08 1.01 1.00 2/65 427
/proc/meminfo: memFree=1255576/2055920 swapFree=4178784/4192956
[pid=426] ppid=424 vsize=2296 CPUtime=6.29
/proc/426/stat : 426 (march_nn) R 424 426 32159 0 -1 4194304 400 0 0 0 629 0 0 0 25 0 1 0 1101904581 2351104 383 1992294400 134512640 135197250 4294956240 18446744073709551615 134525330 0 0 4096 0 0 0 0 17 1 0 0
/proc/426/statm: 574 383 93 167 0 405 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2296

[startup+12.7018 s]
/proc/loadavg: 1.07 1.01 1.00 2/65 427
/proc/meminfo: memFree=1255064/2055920 swapFree=4178784/4192956
[pid=426] ppid=424 vsize=2864 CPUtime=12.69
/proc/426/stat : 426 (march_nn) R 424 426 32159 0 -1 4194304 500 0 0 0 1269 0 0 0 25 0 1 0 1101904581 2932736 483 1992294400 134512640 135197250 4294956240 18446744073709551615 134552490 0 0 4096 0 0 0 0 17 1 0 0
/proc/426/statm: 716 483 93 167 0 547 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 2864

[startup+25.5019 s]
/proc/loadavg: 1.13 1.03 1.01 2/65 427
/proc/meminfo: memFree=1254168/2055920 swapFree=4178784/4192956
[pid=426] ppid=424 vsize=3636 CPUtime=25.48
/proc/426/stat : 426 (march_nn) R 424 426 32159 0 -1 4194304 716 0 0 0 2548 0 0 0 25 0 1 0 1101904581 3723264 688 1992294400 134512640 135197250 4294956240 18446744073709551615 134542112 0 0 4096 0 0 0 0 17 1 0 0
/proc/426/statm: 909 688 93 167 0 740 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 3636

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

[startup+31.9055 s]
/proc/loadavg: 1.12 1.03 1.01 2/65 427
/proc/meminfo: memFree=1253848/2055920 swapFree=4178784/4192956
[pid=426] ppid=424 vsize=3980 CPUtime=31.89
/proc/426/stat : 426 (march_nn) R 424 426 32159 0 -1 4194304 796 0 0 0 3188 1 0 0 25 0 1 0 1101904581 4075520 768 1992294400 134512640 135197250 4294956240 18446744073709551615 134591978 0 0 4096 0 0 0 0 17 1 0 0
/proc/426/statm: 995 768 93 167 0 826 0
Current children cumulated CPU time (s) 31.89
Current children cumulated vsize (KiB) 3980

[startup+33.5016 s]
/proc/loadavg: 1.11 1.03 1.01 2/65 427
/proc/meminfo: memFree=1253784/2055920 swapFree=4178784/4192956
[pid=426] ppid=424 vsize=4744 CPUtime=33.48
/proc/426/stat : 426 (march_nn) R 424 426 32159 0 -1 4194304 816 0 0 0 3347 1 0 0 25 0 1 0 1101904581 4857856 788 1992294400 134512640 135197250 4294956240 18446744073709551615 134572734 0 0 4096 0 0 0 0 17 1 0 0
/proc/426/statm: 1186 788 93 167 0 1017 0
Current children cumulated CPU time (s) 33.48
Current children cumulated vsize (KiB) 4744

[startup+35.1018 s]
/proc/loadavg: 1.11 1.03 1.01 2/65 427
/proc/meminfo: memFree=1253656/2055920 swapFree=4178784/4192956
[pid=426] ppid=424 vsize=4744 CPUtime=35.08
/proc/426/stat : 426 (march_nn) R 424 426 32159 0 -1 4194304 834 0 0 0 3507 1 0 0 25 0 1 0 1101904581 4857856 806 1992294400 134512640 135197250 4294956240 18446744073709551615 134539276 0 0 4096 0 0 0 0 17 1 0 0
/proc/426/statm: 1186 806 93 167 0 1017 0
Current children cumulated CPU time (s) 35.08
Current children cumulated vsize (KiB) 4744

[startup+35.9028 s]
/proc/loadavg: 1.11 1.03 1.01 2/65 427
/proc/meminfo: memFree=1253656/2055920 swapFree=4178784/4192956
[pid=426] ppid=424 vsize=4744 CPUtime=35.88
/proc/426/stat : 426 (march_nn) R 424 426 32159 0 -1 4194304 843 0 0 0 3587 1 0 0 25 0 1 0 1101904581 4857856 815 1992294400 134512640 135197250 4294956240 18446744073709551615 134542058 0 0 4096 0 0 0 0 17 1 0 0
/proc/426/statm: 1186 815 93 167 0 1017 0
Current children cumulated CPU time (s) 35.88
Current children cumulated vsize (KiB) 4744

[startup+36.3059 s]
/proc/loadavg: 1.11 1.03 1.01 2/65 427
/proc/meminfo: memFree=1253656/2055920 swapFree=4178784/4192956
[pid=426] ppid=424 vsize=4744 CPUtime=36.28
/proc/426/stat : 426 (march_nn) R 424 426 32159 0 -1 4194304 847 0 0 0 3627 1 0 0 25 0 1 0 1101904581 4857856 819 1992294400 134512640 135197250 4294956240 18446744073709551615 134541965 0 0 4096 0 0 0 0 17 1 0 0
/proc/426/statm: 1186 819 93 167 0 1017 0
Current children cumulated CPU time (s) 36.28
Current children cumulated vsize (KiB) 4744

Child status: 20
Real time (s): 36.3076
CPU time (s): 36.2915
CPU user time (s): 36.2765
CPU system time (s): 0.014997
CPU usage (%): 99.9555
Max. virtual memory (cumulated for all children) (KiB): 4744

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 36.2765
system time used= 0.014997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 849
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= 2
involuntary context switches= 442

runsolver used 0.042993 second user time and 0.090986 second system time

The end

Launcher Data 

Begin job on node57 at 2009-03-29 04:07:08
IDJOB=1517882
IDBENCH=70633
IDSOLVER=522
FILE ID=node57/1517882-1238292428
PBS_JOBID= 9061000
Free space on /tmp= 66264 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/UNKNOWN/380/unif-k3-r4.25-v380-c1615-S502087726-095.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1517882-1238292428/watcher-1517882-1238292428 -o /tmp/evaluation-result-1517882-1238292428/solver-1517882-1238292428 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1517882-1238292428.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 19585c969548ec91e42795356f5c76b1
RANDOM SEED=1539469920

node57.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.213
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		: 3000.213
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:       1257280 kB
Buffers:         93828 kB
Cached:         616860 kB
SwapCached:       8004 kB
Active:         318744 kB
Inactive:       401364 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1257280 kB
SwapTotal:     4192956 kB
SwapFree:      4178784 kB
Dirty:             796 kB
Writeback:           0 kB
Mapped:          15096 kB
Slab:            64564 kB
Committed_AS:  2509132 kB
PageTables:       1392 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= 66264 MiB
End job on node57 at 2009-03-29 04:07:44