Trace number 1626813

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
SAT07 reference solver: March KS 2007-02-08UNSAT 15.1057 15.1169

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/UNKNOWN/360/
unif-k3-r4.25-v360-c1530-S1906521511-089.cnf
MD5SUM9c1fb07d5218acc7d1bc3d4acef5e909
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark11.6992
Satisfiable
(Un)Satisfiability was proved
Number of variables360
Number of clauses1530
Sum of the clauses size4590
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31530
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) 2001-2004 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 1530 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, 3 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 359 free variables and 1527 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.413
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 181 duplicate clauses
0.00/0.01	c resolvent_look() :: found 102 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 360 variables and 1629 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 1629 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1629 / 360 ) = 4.53
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: 189 JD: 13
0.00/0.08	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
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c |****************************************************************| 1 NC: 1198 JD: 13
0.40/0.43	c |----------------------------------------------------------------|
c |*
c |**
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c |****************************************************************| 2 NC: 4441 JD: 13
1.60/1.60	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 3 NC: 10517 JD: 13
3.70/3.80	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 4 NC: 18654 JD: 13
6.79/6.80	c |----------------------------------------------------------------|
c |*
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c |********************************
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c |***************************************************************
c |****************************************************************| 5 NC: 27616 JD: 13
10.19/10.25	c |----------------------------------------------------------------|
c |*
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c |***************************************************************
c |****************************************************************| 6 NC: 34313 JD: 13
12.88/12.96	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 7 NC: 37821 JD: 13
14.38/14.44	c |----------------------------------------------------------------|
c |*
c |**
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c |****
c |*****
c |******
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c |****************************************************************| 8 NC: 38982 JD: 13
14.88/14.97	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
c |*******
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 |********************************************************
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c |****************************************************************| 9 NC: 39231 JD: 13
14.98/15.09	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
c |*******
c |********
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c |****************
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c |********************************
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c |**********************************
c |***********************************
c |************************************
c |*************************************
c |**************************************
c |****************************************
c |************************************************
c |****************************************************************| 10 NC: 39265 JD: 13
15.08/15.11	c |----------------------------------------------------------------|
c |****
c |*****
c |******
c |********
c |****************
c |********************************
c |****************************************************************| 11 NC: 39266 JD: 13
15.08/15.11	c |----------------------------------------------------------------|
c |
15.08/15.11	c
15.08/15.11	c main():: nodeCount: 39266
15.08/15.11	c main():: dead ends in main: 1197
15.08/15.11	c main():: lookAheadCount: 2508307
15.08/15.11	c main():: unitResolveCount: 480721
15.08/15.11	c main():: time=15.100000
15.08/15.11	c main():: necessary_assignments: 7816
15.08/15.11	c main():: bin_sat: 0, bin_unsat 0
15.08/15.11	c main():: doublelook: #: 157471, succes #: 116984
15.08/15.11	c main():: doublelook: overall 6.524 of all possible doublelooks executed
15.08/15.11	c main():: doublelook: succesrate: 74.289, average DL_trigger: 5796.856
15.08/15.11	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-1626813-1240139479/watcher-1626813-1240139479 -o /tmp/evaluation-result-1626813-1240139479/solver-1626813-1240139479 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/march_ks HOME/instance-1626813-1240139479.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 6000 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: 0.95 0.98 0.99 3/64 22517
/proc/meminfo: memFree=1489648/2055920 swapFree=4192956/4192956
[pid=22517] ppid=22515 vsize=792 CPUtime=0
/proc/22517/stat : 22517 (march_ks) R 22515 22517 22344 0 -1 4194304 119 0 0 0 0 0 0 0 18 0 1 0 41973926 811008 102 1992294400 134512640 135019032 4294956240 18446744073709551615 134554758 0 0 4096 0 0 0 0 17 0 0 0
/proc/22517/statm: 198 102 52 123 0 73 0

[startup+0.104865 s]
/proc/loadavg: 0.95 0.98 0.99 3/64 22517
/proc/meminfo: memFree=1489648/2055920 swapFree=4192956/4192956
[pid=22517] ppid=22515 vsize=1228 CPUtime=0.1
/proc/22517/stat : 22517 (march_ks) R 22515 22517 22344 0 -1 4194304 232 0 0 0 10 0 0 0 18 0 1 0 41973926 1257472 215 1992294400 134512640 135019032 4294956240 18446744073709551615 134564818 0 0 4096 0 0 0 0 17 0 0 0
/proc/22517/statm: 307 215 73 123 0 182 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1228

[startup+0.201874 s]
/proc/loadavg: 0.95 0.98 0.99 3/64 22517
/proc/meminfo: memFree=1489648/2055920 swapFree=4192956/4192956
[pid=22517] ppid=22515 vsize=1228 CPUtime=0.2
/proc/22517/stat : 22517 (march_ks) R 22515 22517 22344 0 -1 4194304 239 0 0 0 20 0 0 0 18 0 1 0 41973926 1257472 222 1992294400 134512640 135019032 4294956240 18446744073709551615 134538097 0 0 4096 0 0 0 0 17 0 0 0
/proc/22517/statm: 307 222 73 123 0 182 0
Current children cumulated CPU time (s) 0.2
Current children cumulated vsize (KiB) 1228

[startup+0.301883 s]
/proc/loadavg: 0.95 0.98 0.99 3/64 22517
/proc/meminfo: memFree=1489648/2055920 swapFree=4192956/4192956
[pid=22517] ppid=22515 vsize=1228 CPUtime=0.3
/proc/22517/stat : 22517 (march_ks) R 22515 22517 22344 0 -1 4194304 241 0 0 0 30 0 0 0 19 0 1 0 41973926 1257472 224 1992294400 134512640 135019032 4294956240 18446744073709551615 134526439 0 0 4096 0 0 0 0 17 0 0 0
/proc/22517/statm: 307 224 73 123 0 182 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1228

[startup+0.701923 s]
/proc/loadavg: 0.95 0.98 0.99 3/64 22517
/proc/meminfo: memFree=1489648/2055920 swapFree=4192956/4192956
[pid=22517] ppid=22515 vsize=1228 CPUtime=0.7
/proc/22517/stat : 22517 (march_ks) R 22515 22517 22344 0 -1 4194304 247 0 0 0 70 0 0 0 23 0 1 0 41973926 1257472 230 1992294400 134512640 135019032 4294956240 18446744073709551615 134538189 0 0 4096 0 0 0 0 17 0 0 0
/proc/22517/statm: 307 230 73 123 0 182 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 1228

[startup+1.502 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 22518
/proc/meminfo: memFree=1489000/2055920 swapFree=4192956/4192956
[pid=22517] ppid=22515 vsize=1228 CPUtime=1.5
/proc/22517/stat : 22517 (march_ks) R 22515 22517 22344 0 -1 4194304 254 0 0 0 150 0 0 0 25 0 1 0 41973926 1257472 237 1992294400 134512640 135019032 4294956240 18446744073709551615 134538186 0 0 4096 0 0 0 0 17 0 0 0
/proc/22517/statm: 307 237 73 123 0 182 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 1228

[startup+3.10116 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 22518
/proc/meminfo: memFree=1488872/2055920 swapFree=4192956/4192956
[pid=22517] ppid=22515 vsize=1228 CPUtime=3.1
/proc/22517/stat : 22517 (march_ks) R 22515 22517 22344 0 -1 4194304 264 0 0 0 310 0 0 0 25 0 1 0 41973926 1257472 247 1992294400 134512640 135019032 4294956240 18446744073709551615 134564384 0 0 4096 0 0 0 0 17 0 0 0
/proc/22517/statm: 307 247 73 123 0 182 0
Current children cumulated CPU time (s) 3.1
Current children cumulated vsize (KiB) 1228

[startup+6.30148 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 22518
/proc/meminfo: memFree=1488552/2055920 swapFree=4192956/4192956
[pid=22517] ppid=22515 vsize=1360 CPUtime=6.29
/proc/22517/stat : 22517 (march_ks) R 22515 22517 22344 0 -1 4194304 287 0 0 0 629 0 0 0 25 0 1 0 41973926 1392640 270 1992294400 134512640 135019032 4294956240 18446744073709551615 134526463 0 0 4096 0 0 0 0 17 0 0 0
/proc/22517/statm: 340 270 73 123 0 215 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1360

[startup+12.7011 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 22518
/proc/meminfo: memFree=1488368/2055920 swapFree=4192956/4192956
[pid=22517] ppid=22515 vsize=1564 CPUtime=12.68
/proc/22517/stat : 22517 (march_ks) R 22515 22517 22344 0 -1 4194304 338 0 0 0 1268 0 0 0 25 0 1 0 41973926 1601536 321 1992294400 134512640 135019032 4294956240 18446744073709551615 134584966 0 0 4096 0 0 0 0 17 0 0 0
/proc/22517/statm: 391 321 73 123 0 266 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 1564

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

[startup+12.8011 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 22518
/proc/meminfo: memFree=1488368/2055920 swapFree=4192956/4192956
[pid=22517] ppid=22515 vsize=1564 CPUtime=12.78
/proc/22517/stat : 22517 (march_ks) R 22515 22517 22344 0 -1 4194304 339 0 0 0 1278 0 0 0 25 0 1 0 41973926 1601536 322 1992294400 134512640 135019032 4294956240 18446744073709551615 134597550 0 0 4096 0 0 0 0 17 0 0 0
/proc/22517/statm: 391 322 73 123 0 266 0
Current children cumulated CPU time (s) 12.78
Current children cumulated vsize (KiB) 1564

[startup+14.4053 s]
/proc/loadavg: 0.96 0.98 0.99 2/65 22518
/proc/meminfo: memFree=1488368/2055920 swapFree=4192956/4192956
[pid=22517] ppid=22515 vsize=1664 CPUtime=14.38
/proc/22517/stat : 22517 (march_ks) R 22515 22517 22344 0 -1 4194304 349 0 0 0 1438 0 0 0 25 0 1 0 41973926 1703936 332 1992294400 134512640 135019032 4294956240 18446744073709551615 134597988 0 0 4096 0 0 0 0 17 0 0 0
/proc/22517/statm: 416 332 73 123 0 291 0
Current children cumulated CPU time (s) 14.38
Current children cumulated vsize (KiB) 1664

[startup+14.8013 s]
/proc/loadavg: 0.96 0.98 0.99 2/65 22518
/proc/meminfo: memFree=1488368/2055920 swapFree=4192956/4192956
[pid=22517] ppid=22515 vsize=1664 CPUtime=14.78
/proc/22517/stat : 22517 (march_ks) R 22515 22517 22344 0 -1 4194304 353 0 0 0 1478 0 0 0 25 0 1 0 41973926 1703936 336 1992294400 134512640 135019032 4294956240 18446744073709551615 134597206 0 0 4096 0 0 0 0 17 0 0 0
/proc/22517/statm: 416 336 73 123 0 291 0
Current children cumulated CPU time (s) 14.78
Current children cumulated vsize (KiB) 1664

[startup+15.0013 s]
/proc/loadavg: 0.96 0.98 0.99 2/65 22518
/proc/meminfo: memFree=1488368/2055920 swapFree=4192956/4192956
[pid=22517] ppid=22515 vsize=1664 CPUtime=14.98
/proc/22517/stat : 22517 (march_ks) R 22515 22517 22344 0 -1 4194304 354 0 0 0 1498 0 0 0 25 0 1 0 41973926 1703936 337 1992294400 134512640 135019032 4294956240 18446744073709551615 134526435 0 0 4096 0 0 0 0 17 0 0 0
/proc/22517/statm: 416 337 73 123 0 291 0
Current children cumulated CPU time (s) 14.98
Current children cumulated vsize (KiB) 1664

[startup+15.1014 s]
/proc/loadavg: 0.96 0.98 0.99 2/65 22518
/proc/meminfo: memFree=1488368/2055920 swapFree=4192956/4192956
[pid=22517] ppid=22515 vsize=1664 CPUtime=15.08
/proc/22517/stat : 22517 (march_ks) R 22515 22517 22344 0 -1 4194304 355 0 0 0 1508 0 0 0 25 0 1 0 41973926 1703936 338 1992294400 134512640 135019032 4294956240 18446744073709551615 134589843 0 0 4096 0 0 0 0 17 0 0 0
/proc/22517/statm: 416 338 73 123 0 291 0
Current children cumulated CPU time (s) 15.08
Current children cumulated vsize (KiB) 1664

Child status: 20
Real time (s): 15.1169
CPU time (s): 15.1057
CPU user time (s): 15.0947
CPU system time (s): 0.010998
CPU usage (%): 99.9256
Max. virtual memory (cumulated for all children) (KiB): 1664

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 15.0947
system time used= 0.010998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 356
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= 346

runsolver used 0.024996 second user time and 0.045993 second system time

The end

Launcher Data 

Begin job on node70 at 2009-04-19 13:11:19
IDJOB=1626813
IDBENCH=70641
IDSOLVER=582
FILE ID=node70/1626813-1240139479
PBS_JOBID= 9157859
Free space on /tmp= 66332 MiB

SOLVER NAME= SAT07 reference solver: March KS 2007-02-08
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/UNKNOWN/360/unif-k3-r4.25-v360-c1530-S1906521511-089.cnf
COMMAND LINE= HOME/march_ks BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1626813-1240139479/watcher-1626813-1240139479 -o /tmp/evaluation-result-1626813-1240139479/solver-1626813-1240139479 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/march_ks HOME/instance-1626813-1240139479.cnf            

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 9c1fb07d5218acc7d1bc3d4acef5e909
RANDOM SEED=465391581

node70.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:       1490192 kB
Buffers:         48208 kB
Cached:         427656 kB
SwapCached:          0 kB
Active:         344452 kB
Inactive:       145352 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1490192 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            3100 kB
Writeback:           0 kB
Mapped:          23692 kB
Slab:            62000 kB
Committed_AS:   154300 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= 66332 MiB
End job on node70 at 2009-04-19 13:11:34