Trace number 1718250

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_hi hiUNSAT 11.9202 11.9251

General information on the benchmark

Nameindustrial/jarvisalo/
eq.atree.braun.8.unsat.cnf
MD5SUM35a8bbabf9cb954216ad71150cb47290
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark11.9202
Satisfiable
(Un)Satisfiability was proved
Number of variables684
Number of clauses2300
Sum of the clauses size5992
Maximum clause length15
Minimum clause length1
Number of clauses of size 13
Number of clauses of size 2978
Number of clauses of size 31284
Number of clauses of size 416
Number of clauses of size 512
Number of clauses of size over 57

Solver Data 

0.00/0.02	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.02	c main()::  **                Copyright (C) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
0.00/0.02	c main()::   *  This program may be redistributed and/or modified under the terms of the GNU Gereral Public License  *
0.00/0.02	c main()::
0.00/0.02	c initFormula():: searching for DIMACS p-line....
0.00/0.02	c initFormula():: the DIMACS p-line indicates a CNF of 684 variables and 2300 clauses.
0.00/0.02	c parseCNF():: parsing....
0.00/0.02	c parseCNF():: the CNF contains 3 unary clauses.
0.00/0.02	c runParser():: parsing was successful, warming up engines...
0.00/0.02	c simplify_formula():: removed 0 tautological, 33 satisfied and 0 duplicate clauses
0.00/0.02	c preprocessing fase I completed:: there are now 681 free variables and 2267 clauses.
0.00/0.02	c stat :: sign balance is biased by 0.085
0.00/0.02	c find_equivalence():: found 217 3-equivalences
0.00/0.02	c find_and_remove_tautogolies():: found and removed 28 tautologies
0.00/0.02	c shorten_equivalence(): average equivalence length reduced from 5.776596 to 3.473404
0.00/0.02	c using k-SAT heuristics (size based diff)
0.00/0.02	c simplify_formula():: removed 0 tautological, 868 satisfied and 0 duplicate clauses
0.00/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.02	c main():: clause / variable ratio: ( 1399 / 684 ) = 2.05
0.00/0.02	c longest clause has size 13
0.00/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.02	c number of free variables = 652
0.00/0.02	c dynamic_preselect_setsize :: off
0.00/0.02	c main():: all systems go!
0.00/0.02	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| (0/8) NodeCount: 163
0.29/0.39	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
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c |**************************************************
c |****************************************************
c |********************************************************
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c |**********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| (1/8) NodeCount: 881
1.99/2.00	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 |***********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| (2/8) NodeCount: 2616
5.59/5.60	c |----------------------------------------------------------------|
c |*
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 |*****************************
c |******************************
c |*******************************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |*************************************
c |**************************************
c |***************************************
c |****************************************
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c |************************************************
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c |*****************************************************
c |******************************************************
c |*******************************************************
c |********************************************************
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c |**********************************************************
c |***********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| (3/8) NodeCount: 4297
9.09/9.10	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |*****
c |******
c |*******
c |********
c |*********
c |**********
c |***********
c |************
c |*************
c |**************
c |***************
c |****************
c |*****************
c |******************
c |*******************
c |********************
c |*********************
c |**********************
c |***********************
c |************************
c |*************************
c |**************************
c |***************************
c |****************************
c |*****************************
c |******************************
c |*******************************
c |********************************
c |*********************************
c |**********************************
c |***********************************
c |************************************
c |*************************************
c |**************************************
c |***************************************
c |****************************************
c |*****************************************
c |******************************************
c |*******************************************
c |********************************************
c |*********************************************
c |**********************************************
c |***********************************************
c |************************************************
c |*************************************************
c |**************************************************
c |***************************************************
c |****************************************************
c |*****************************************************
c |******************************************************
c |*******************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |***********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |****************************************************************| (4/8) NodeCount: 5369
10.99/11.09	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
c |*******
c |********
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c |**********
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c |************
c |*************
c |**************
c |***************
c |****************
c |*****************
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c |*******************
c |********************
c |*********************
c |**********************
c |************************
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c |*****************************
c |******************************
c |********************************
c |*********************************
c |**********************************
c |***********************************
c |************************************
c |*************************************
c |**************************************
c |***************************************
c |****************************************
c |*****************************************
c |******************************************
c |*******************************************
c |********************************************
c |*********************************************
c |**********************************************
c |************************************************
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c |****************************************************
c |*****************************************************
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c |********************************************************
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c |****************************************************************| (5/8) NodeCount: 5901
11.79/11.81	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
c |*******
c |********
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c |**********
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c |************
c |*************
c |**************
c |****************
c |*****************
c |******************
c |*******************
c |********************
c |*********************
c |**********************
c |************************
c |*************************
c |**************************
c |****************************
c |********************************
c |*********************************
c |**********************************
c |***********************************
c |************************************
c |*************************************
c |**************************************
c |****************************************
c |*****************************************
c |******************************************
c |********************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |********************************************************
c |****************************************************************| (6/8) NodeCount: 5987
11.89/11.91	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |*****
c |******
c |********
c |****************
c |********************************
c |****************************************************************| (7/8) NodeCount: 5996
11.89/11.92	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| (8/8) NodeCount: 5997
11.89/11.92	c |----------------------------------------------------------------|
c |
11.89/11.92	c
11.89/11.92	c main():: nodeCount: 5997
11.89/11.92	c main():: dead ends in main: 57
11.89/11.92	c main():: lookAheadCount: 868142
11.89/11.92	c main():: unitResolveCount: 355426
11.89/11.92	c main():: time=11.910000
11.89/11.92	c main():: necessary_assignments: 21529
11.89/11.92	c main():: bin_sat: 0, bin_unsat 0
11.89/11.92	c main():: doublelook: #: 17934, succes #: 11732
11.89/11.92	c main():: doublelook: overall 2.132 of all possible doublelooks executed
11.89/11.92	c main():: doublelook: succesrate: 65.418, average DL_trigger: 147.248
11.89/11.92	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1718250-1240634874/watcher-1718250-1240634874 -o /tmp/evaluation-result-1718250-1240634874/solver-1718250-1240634874 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1718250-1240634874.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: 1.28 1.05 1.02 2/64 18482
/proc/meminfo: memFree=1837032/2055920 swapFree=4191900/4192956
[pid=18482] ppid=18480 vsize=836 CPUtime=0
/proc/18482/stat : 18482 (march_hi) R 18480 18482 18357 0 -1 4194304 104 0 0 0 0 0 0 0 20 0 1 0 91520645 856064 89 1992294400 134512640 135197378 4294956224 18446744073709551615 134718590 0 0 4096 0 0 0 0 17 1 0 0
/proc/18482/statm: 209 89 58 167 0 40 0

[startup+0.00724889 s]
/proc/loadavg: 1.28 1.05 1.02 2/64 18482
/proc/meminfo: memFree=1837032/2055920 swapFree=4191900/4192956
[pid=18482] ppid=18480 vsize=1116 CPUtime=0
/proc/18482/stat : 18482 (march_hi) R 18480 18482 18357 0 -1 4194304 148 0 0 0 0 0 0 0 20 0 1 0 91520645 1142784 131 1992294400 134512640 135197378 4294956224 18446744073709551615 134713223 0 0 4096 0 0 0 0 17 1 0 0
/proc/18482/statm: 279 131 65 167 0 110 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 1116

[startup+0.101266 s]
/proc/loadavg: 1.28 1.05 1.02 2/64 18482
/proc/meminfo: memFree=1837032/2055920 swapFree=4191900/4192956
[pid=18482] ppid=18480 vsize=2212 CPUtime=0.09
/proc/18482/stat : 18482 (march_hi) R 18480 18482 18357 0 -1 4194304 312 0 0 0 9 0 0 0 20 0 1 0 91520645 2265088 295 1992294400 134512640 135197378 4294956224 18446744073709551615 134539274 0 0 4096 0 0 0 0 17 1 0 0
/proc/18482/statm: 553 295 92 167 0 384 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2212

[startup+0.3013 s]
/proc/loadavg: 1.28 1.05 1.02 2/64 18482
/proc/meminfo: memFree=1837032/2055920 swapFree=4191900/4192956
[pid=18482] ppid=18480 vsize=2212 CPUtime=0.29
/proc/18482/stat : 18482 (march_hi) R 18480 18482 18357 0 -1 4194304 339 0 0 0 29 0 0 0 21 0 1 0 91520645 2265088 322 1992294400 134512640 135197378 4294956224 18446744073709551615 134553720 0 0 4096 0 0 0 0 17 1 0 0
/proc/18482/statm: 553 322 92 167 0 384 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2212

[startup+0.701371 s]
/proc/loadavg: 1.28 1.05 1.02 2/64 18482
/proc/meminfo: memFree=1837032/2055920 swapFree=4191900/4192956
[pid=18482] ppid=18480 vsize=2344 CPUtime=0.69
/proc/18482/stat : 18482 (march_hi) R 18480 18482 18357 0 -1 4194304 365 0 0 0 69 0 0 0 25 0 1 0 91520645 2400256 348 1992294400 134512640 135197378 4294956224 18446744073709551615 134597699 0 0 4096 0 0 0 0 17 1 0 0
/proc/18482/statm: 586 348 92 167 0 417 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2344

[startup+1.50151 s]
/proc/loadavg: 1.28 1.05 1.02 2/65 18483
/proc/meminfo: memFree=1835936/2055920 swapFree=4191900/4192956
[pid=18482] ppid=18480 vsize=2476 CPUtime=1.49
/proc/18482/stat : 18482 (march_hi) R 18480 18482 18357 0 -1 4194304 380 0 0 0 149 0 0 0 25 0 1 0 91520645 2535424 363 1992294400 134512640 135197378 4294956224 18446744073709551615 134525468 0 0 4096 0 0 0 0 17 1 0 0
/proc/18482/statm: 619 363 92 167 0 450 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2476

[startup+3.10179 s]
/proc/loadavg: 1.28 1.05 1.02 2/65 18483
/proc/meminfo: memFree=1835744/2055920 swapFree=4191900/4192956
[pid=18482] ppid=18480 vsize=2476 CPUtime=3.09
/proc/18482/stat : 18482 (march_hi) R 18480 18482 18357 0 -1 4194304 404 0 0 0 309 0 0 0 25 0 1 0 91520645 2535424 387 1992294400 134512640 135197378 4294956224 18446744073709551615 134548721 0 0 4096 0 0 0 0 17 1 0 0
/proc/18482/statm: 619 387 92 167 0 450 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2476

[startup+6.30136 s]
/proc/loadavg: 1.26 1.05 1.01 2/65 18483
/proc/meminfo: memFree=1835552/2055920 swapFree=4191900/4192956
[pid=18482] ppid=18480 vsize=2608 CPUtime=6.29
/proc/18482/stat : 18482 (march_hi) R 18480 18482 18357 0 -1 4194304 419 0 0 0 629 0 0 0 25 0 1 0 91520645 2670592 402 1992294400 134512640 135197378 4294956224 18446744073709551615 134525841 0 0 4096 0 0 0 0 17 1 0 0
/proc/18482/statm: 652 402 92 167 0 483 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2608

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

[startup+9.50293 s]
/proc/loadavg: 1.26 1.05 1.01 2/65 18483
/proc/meminfo: memFree=1835496/2055920 swapFree=4191900/4192956
[pid=18482] ppid=18480 vsize=2608 CPUtime=9.49
/proc/18482/stat : 18482 (march_hi) R 18480 18482 18357 0 -1 4194304 433 0 0 0 949 0 0 0 25 0 1 0 91520645 2670592 416 1992294400 134512640 135197378 4294956224 18446744073709551615 134525468 0 0 4096 0 0 0 0 17 1 0 0
/proc/18482/statm: 652 416 92 167 0 483 0
Current children cumulated CPU time (s) 9.49
Current children cumulated vsize (KiB) 2608

[startup+11.1012 s]
/proc/loadavg: 1.24 1.05 1.01 2/65 18483
/proc/meminfo: memFree=1835432/2055920 swapFree=4191900/4192956
[pid=18482] ppid=18480 vsize=2608 CPUtime=11.09
/proc/18482/stat : 18482 (march_hi) R 18480 18482 18357 0 -1 4194304 438 0 0 0 1109 0 0 0 25 0 1 0 91520645 2670592 421 1992294400 134512640 135197378 4294956224 18446744073709551615 134525831 0 0 4096 0 0 0 0 17 1 0 0
/proc/18482/statm: 652 421 92 167 0 483 0
Current children cumulated CPU time (s) 11.09
Current children cumulated vsize (KiB) 2608

[startup+11.5013 s]
/proc/loadavg: 1.24 1.05 1.01 2/65 18483
/proc/meminfo: memFree=1835432/2055920 swapFree=4191900/4192956
[pid=18482] ppid=18480 vsize=2608 CPUtime=11.49
/proc/18482/stat : 18482 (march_hi) R 18480 18482 18357 0 -1 4194304 438 0 0 0 1149 0 0 0 25 0 1 0 91520645 2670592 421 1992294400 134512640 135197378 4294956224 18446744073709551615 134553692 0 0 4096 0 0 0 0 17 1 0 0
/proc/18482/statm: 652 421 92 167 0 483 0
Current children cumulated CPU time (s) 11.49
Current children cumulated vsize (KiB) 2608

[startup+11.9013 s]
/proc/loadavg: 1.24 1.05 1.01 2/65 18483
/proc/meminfo: memFree=1835432/2055920 swapFree=4191900/4192956
[pid=18482] ppid=18480 vsize=2608 CPUtime=11.89
/proc/18482/stat : 18482 (march_hi) R 18480 18482 18357 0 -1 4194304 439 0 0 0 1189 0 0 0 25 0 1 0 91520645 2670592 422 1992294400 134512640 135197378 4294956224 18446744073709551615 134548521 0 0 4096 0 0 0 0 17 1 0 0
/proc/18482/statm: 652 422 92 167 0 483 0
Current children cumulated CPU time (s) 11.89
Current children cumulated vsize (KiB) 2608

Child status: 20
Real time (s): 11.9251
CPU time (s): 11.9202
CPU user time (s): 11.9182
CPU system time (s): 0.001999
CPU usage (%): 99.9587
Max. virtual memory (cumulated for all children) (KiB): 2608

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 11.9182
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 441
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= 1
involuntary context switches= 33

runsolver used 0.011998 second user time and 0.033994 second system time

The end

Launcher Data 

Begin job on node18 at 2009-04-25 06:47:54
IDJOB=1718250
IDBENCH=20473
IDSOLVER=521
FILE ID=node18/1718250-1240634874
PBS_JOBID= 9186406
Free space on /tmp= 66148 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT07/industrial/jarvisalo/eq.atree.braun.8.unsat.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1718250-1240634874/watcher-1718250-1240634874 -o /tmp/evaluation-result-1718250-1240634874/solver-1718250-1240634874 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1718250-1240634874.cnf

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

MD5SUM BENCH= 35a8bbabf9cb954216ad71150cb47290
RANDOM SEED=1612253393

node18.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		: 3000.280
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		: 3000.280
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:       1837448 kB
Buffers:         17924 kB
Cached:         131756 kB
SwapCached:        260 kB
Active:          17072 kB
Inactive:       145844 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1837448 kB
SwapTotal:     4192956 kB
SwapFree:      4191900 kB
Dirty:             896 kB
Writeback:           0 kB
Mapped:          21728 kB
Slab:            41548 kB
Committed_AS:   328132 kB
PageTables:       1372 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= 66148 MiB
End job on node18 at 2009-04-25 06:48:06