Trace number 1544826

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 16.3065 16.3246

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/UNKNOWN/360/
unif-k3-r4.25-v360-c1530-S253750560-086.cnf
MD5SUM1510e2158cc54ae2963f5611496bde02
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark11.2673
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, 6 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 359 free variables and 1524 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.426
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 143 duplicate clauses
0.00/0.01	c resolvent_look() :: found 72 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 360 variables and 1596 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 1596 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1596 / 360 ) = 4.43
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: 120 JD: 15
0.05/0.05	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
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c |****************************************************
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c |***************************************************************
c |****************************************************************| 1 NC: 786 JD: 15
0.19/0.27	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
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c |****************************************************************| 2 NC: 2536 JD: 15
0.79/0.85	c |----------------------------------------------------------------|
c |*
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c |****
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c |****************
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c |****************************************************************| 3 NC: 7039 JD: 15
2.39/2.44	c |----------------------------------------------------------------|
c |*
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c |******
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c |***************************************************************
c |****************************************************************| 4 NC: 14774 JD: 15
5.29/5.34	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
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c |********
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c |********************************
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c |***************************************************************
c |****************************************************************| 5 NC: 24073 JD: 15
8.89/9.00	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
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c |********
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c |************************
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c |********************************
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c |***************************************************************
c |****************************************************************| 6 NC: 32128 JD: 15
12.28/12.35	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
c |*******
c |********
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c |****************
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c |****************************************************************| 7 NC: 37276 JD: 15
14.58/14.61	c |----------------------------------------------------------------|
c |*
c |**
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c |****
c |*****
c |******
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c |********
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c |********************************
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c |**************************************************************
c |****************************************************************| 8 NC: 39773 JD: 15
15.68/15.72	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
c |*******
c |********
c |*********
c |**********
c |************
c |**************
c |***************
c |****************
c |*****************
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c |*******************
c |********************
c |*********************
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c |***********************
c |************************
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c |********************************
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c |********************************************************
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c |************************************************************
c |*************************************************************
c |**************************************************************
c |****************************************************************| 9 NC: 40672 JD: 15
16.08/16.16	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
c |*******
c |********
c |*********
c |**********
c |************
c |****************
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c |************************
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c |********************************
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c |********************************************************
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c |************************************************************
c |****************************************************************| 10 NC: 40919 JD: 15
16.18/16.28	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |********
c |*********
c |**********
c |************
c |****************
c |*****************
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c |********************
c |************************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
c |****************************************************
c |*****************************************************
c |******************************************************
c |********************************************************
c |****************************************************************| 11 NC: 40981 JD: 15
16.27/16.31	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |*****************
c |******************
c |********************
c |************************
c |********************************
c |****************************************************************| 12 NC: 40989 JD: 15
16.27/16.32	c |----------------------------------------------------------------|
c |
16.27/16.32	c
16.27/16.32	c main():: nodeCount: 40989
16.27/16.32	c main():: dead ends in main: 1233
16.27/16.32	c main():: lookAheadCount: 2637306
16.27/16.32	c main():: unitResolveCount: 603136
16.27/16.32	c main():: time=16.300000
16.27/16.32	c main():: necessary_assignments: 9286
16.27/16.32	c main():: bin_sat: 0, bin_unsat 0
16.27/16.32	c main():: doublelook: #: 165348, succes #: 122418
16.27/16.32	c main():: doublelook: overall 6.521 of all possible doublelooks executed
16.27/16.32	c main():: doublelook: succesrate: 74.037, average DL_trigger: 5653.126
16.27/16.32	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-1544826-1238614744/watcher-1544826-1238614744 -o /tmp/evaluation-result-1544826-1238614744/solver-1544826-1238614744 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_ks HOME/instance-1544826-1238614744.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: 1.02 1.00 0.91 3/64 30425
/proc/meminfo: memFree=1142024/2055920 swapFree=4177748/4192956
[pid=30425] ppid=30423 vsize=792 CPUtime=0
/proc/30425/stat : 30425 (march_ks) R 30423 30425 30152 0 -1 4194304 119 0 0 0 0 0 0 0 18 0 1 0 1134140571 811008 102 1992294400 134512640 135019032 4294956240 18446744073709551615 134555143 0 0 4096 0 0 0 0 17 0 0 0
/proc/30425/statm: 198 102 52 123 0 73 0

[startup+0.0531451 s]
/proc/loadavg: 1.02 1.00 0.91 3/64 30425
/proc/meminfo: memFree=1142024/2055920 swapFree=4177748/4192956
[pid=30425] ppid=30423 vsize=1092 CPUtime=0.05
/proc/30425/stat : 30425 (march_ks) R 30423 30425 30152 0 -1 4194304 225 0 0 0 5 0 0 0 18 0 1 0 1134140571 1118208 208 1992294400 134512640 135019032 4294956240 18446744073709551615 134564774 0 0 4096 0 0 0 0 17 0 0 0
/proc/30425/statm: 273 208 73 123 0 148 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1092

[startup+0.101154 s]
/proc/loadavg: 1.02 1.00 0.91 3/64 30425
/proc/meminfo: memFree=1142024/2055920 swapFree=4177748/4192956
[pid=30425] ppid=30423 vsize=1224 CPUtime=0.09
/proc/30425/stat : 30425 (march_ks) R 30423 30425 30152 0 -1 4194304 232 0 0 0 9 0 0 0 18 0 1 0 1134140571 1253376 215 1992294400 134512640 135019032 4294956240 18446744073709551615 134542609 0 0 4096 0 0 0 0 17 0 0 0
/proc/30425/statm: 306 215 73 123 0 181 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1224

[startup+0.301191 s]
/proc/loadavg: 1.02 1.00 0.91 3/64 30425
/proc/meminfo: memFree=1142024/2055920 swapFree=4177748/4192956
[pid=30425] ppid=30423 vsize=1224 CPUtime=0.29
/proc/30425/stat : 30425 (march_ks) R 30423 30425 30152 0 -1 4194304 243 0 0 0 29 0 0 0 20 0 1 0 1134140571 1253376 226 1992294400 134512640 135019032 4294956240 18446744073709551615 134526441 0 0 4096 0 0 0 0 17 0 0 0
/proc/30425/statm: 306 226 73 123 0 181 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1224

[startup+0.701263 s]
/proc/loadavg: 1.02 1.00 0.91 3/64 30425
/proc/meminfo: memFree=1142024/2055920 swapFree=4177748/4192956
[pid=30425] ppid=30423 vsize=1224 CPUtime=0.69
/proc/30425/stat : 30425 (march_ks) R 30423 30425 30152 0 -1 4194304 250 0 0 0 69 0 0 0 23 0 1 0 1134140571 1253376 233 1992294400 134512640 135019032 4294956240 18446744073709551615 134542355 0 0 4096 0 0 0 0 17 0 0 0
/proc/30425/statm: 306 233 73 123 0 181 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1224

[startup+1.50141 s]
/proc/loadavg: 1.02 1.00 0.91 2/65 30426
/proc/meminfo: memFree=1141376/2055920 swapFree=4177748/4192956
[pid=30425] ppid=30423 vsize=1224 CPUtime=1.49
/proc/30425/stat : 30425 (march_ks) R 30423 30425 30152 0 -1 4194304 260 0 0 0 149 0 0 0 25 0 1 0 1134140571 1253376 243 1992294400 134512640 135019032 4294956240 18446744073709551615 134538160 0 0 4096 0 0 0 0 17 0 0 0
/proc/30425/statm: 306 243 73 123 0 181 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1224

[startup+3.1017 s]
/proc/loadavg: 1.02 1.00 0.91 2/65 30426
/proc/meminfo: memFree=1141184/2055920 swapFree=4177748/4192956
[pid=30425] ppid=30423 vsize=1408 CPUtime=3.09
/proc/30425/stat : 30425 (march_ks) R 30423 30425 30152 0 -1 4194304 282 0 0 0 309 0 0 0 25 0 1 0 1134140571 1441792 265 1992294400 134512640 135019032 4294956240 18446744073709551615 134526454 0 0 4096 0 0 0 0 17 0 0 0
/proc/30425/statm: 352 265 73 123 0 227 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1408

[startup+6.30128 s]
/proc/loadavg: 1.02 1.00 0.91 2/65 30426
/proc/meminfo: memFree=1140928/2055920 swapFree=4177748/4192956
[pid=30425] ppid=30423 vsize=1612 CPUtime=6.29
/proc/30425/stat : 30425 (march_ks) R 30423 30425 30152 0 -1 4194304 335 0 0 0 629 0 0 0 25 0 1 0 1134140571 1650688 318 1992294400 134512640 135019032 4294956240 18446744073709551615 134564790 0 0 4096 0 0 0 0 17 0 0 0
/proc/30425/statm: 403 318 73 123 0 278 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1612

[startup+12.7015 s]
/proc/loadavg: 1.02 1.00 0.91 2/65 30426
/proc/meminfo: memFree=1140552/2055920 swapFree=4177748/4192956
[pid=30425] ppid=30423 vsize=1988 CPUtime=12.68
/proc/30425/stat : 30425 (march_ks) R 30423 30425 30152 0 -1 4194304 429 0 0 0 1268 0 0 0 25 0 1 0 1134140571 2035712 404 1992294400 134512640 135019032 4294956240 18446744073709551615 134542785 0 0 4096 0 0 0 0 17 0 0 0
/proc/30425/statm: 497 404 73 123 0 372 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 1988

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

[startup+14.3067 s]
/proc/loadavg: 1.02 1.00 0.91 2/65 30426
/proc/meminfo: memFree=1140424/2055920 swapFree=4177748/4192956
[pid=30425] ppid=30423 vsize=2216 CPUtime=14.29
/proc/30425/stat : 30425 (march_ks) R 30423 30425 30152 0 -1 4194304 449 0 0 0 1429 0 0 0 25 0 1 0 1134140571 2269184 424 1992294400 134512640 135019032 4294956240 18446744073709551615 134538152 0 0 4096 0 0 0 0 17 0 0 0
/proc/30425/statm: 554 424 73 123 0 429 0
Current children cumulated CPU time (s) 14.29
Current children cumulated vsize (KiB) 2216

[startup+15.1019 s]
/proc/loadavg: 1.02 1.00 0.91 2/65 30426
/proc/meminfo: memFree=1140424/2055920 swapFree=4177748/4192956
[pid=30425] ppid=30423 vsize=2216 CPUtime=15.08
/proc/30425/stat : 30425 (march_ks) R 30423 30425 30152 0 -1 4194304 460 0 0 0 1508 0 0 0 25 0 1 0 1134140571 2269184 435 1992294400 134512640 135019032 4294956240 18446744073709551615 134526510 0 0 4096 0 0 0 0 17 0 0 0
/proc/30425/statm: 554 435 73 123 0 429 0
Current children cumulated CPU time (s) 15.08
Current children cumulated vsize (KiB) 2216

[startup+15.901 s]
/proc/loadavg: 1.02 1.00 0.91 2/65 30426
/proc/meminfo: memFree=1140360/2055920 swapFree=4177748/4192956
[pid=30425] ppid=30423 vsize=2216 CPUtime=15.88
/proc/30425/stat : 30425 (march_ks) R 30423 30425 30152 0 -1 4194304 469 0 0 0 1588 0 0 0 25 0 1 0 1134140571 2269184 444 1992294400 134512640 135019032 4294956240 18446744073709551615 134526476 0 0 4096 0 0 0 0 17 0 0 0
/proc/30425/statm: 554 444 73 123 0 429 0
Current children cumulated CPU time (s) 15.88
Current children cumulated vsize (KiB) 2216

[startup+16.3011 s]
/proc/loadavg: 1.02 1.00 0.91 2/65 30426
/proc/meminfo: memFree=1140360/2055920 swapFree=4177748/4192956
[pid=30425] ppid=30423 vsize=2216 CPUtime=16.27
/proc/30425/stat : 30425 (march_ks) R 30423 30425 30152 0 -1 4194304 474 0 0 0 1627 0 0 0 25 0 1 0 1134140571 2269184 449 1992294400 134512640 135019032 4294956240 18446744073709551615 134542659 0 0 4096 0 0 0 0 17 0 0 0
/proc/30425/statm: 554 449 73 123 0 429 0
Current children cumulated CPU time (s) 16.27
Current children cumulated vsize (KiB) 2216

Child status: 20
Real time (s): 16.3246
CPU time (s): 16.3065
CPU user time (s): 16.3005
CPU system time (s): 0.005999
CPU usage (%): 99.8892
Max. virtual memory (cumulated for all children) (KiB): 2216

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 16.3005
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 475
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= 509

runsolver used 0.025996 second user time and 0.056991 second system time

The end

Launcher Data 

Begin job on node24 at 2009-04-01 21:39:04
IDJOB=1544826
IDBENCH=70640
IDSOLVER=559
FILE ID=node24/1544826-1238614744
PBS_JOBID= 9073677
Free space on /tmp= 65780 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-S253750560-086.cnf
COMMAND LINE= HOME/march_ks BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1544826-1238614744/watcher-1544826-1238614744 -o /tmp/evaluation-result-1544826-1238614744/solver-1544826-1238614744 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_ks HOME/instance-1544826-1238614744.cnf            

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

MD5SUM BENCH= 1510e2158cc54ae2963f5611496bde02
RANDOM SEED=485030172

node24.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		: 3000.260
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		: 3000.260
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:       1142568 kB
Buffers:         95696 kB
Cached:         711816 kB
SwapCached:       9032 kB
Active:         133396 kB
Inactive:       684632 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1142568 kB
SwapTotal:     4192956 kB
SwapFree:      4177748 kB
Dirty:            2900 kB
Writeback:           0 kB
Mapped:          16180 kB
Slab:            81304 kB
Committed_AS:  3248600 kB
PageTables:       1448 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= 65776 MiB
End job on node24 at 2009-04-01 21:39:21