Trace number 1718251

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 12.2111 12.2164

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 |****************************************************************| ( 0/999) NodeCount: 18
0.00/0.06	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
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c |****************************************************************| ( 1/999) NodeCount: 132
0.29/0.31	c |----------------------------------------------------------------|
c |*
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c |****
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c |****************
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c |***************************************************************
c |****************************************************************| ( 2/999) NodeCount: 543
1.29/1.39	c |----------------------------------------------------------------|
c |*
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c |****
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c |****************
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c |********************************
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c |***************************************************************
c |****************************************************************| ( 3/999) NodeCount: 1531
3.89/3.93	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 |****************************************************************| ( 4/999) NodeCount: 3113
7.39/7.49	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
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c |****************
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c |************************
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c |*******************************
c |********************************
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c |***************************************************************
c |****************************************************************| ( 5/999) NodeCount: 4744
10.39/10.48	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
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 |********************************
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c |****************************************************************| ( 6/999) NodeCount: 5808
11.79/11.81	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 |********************************
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c |*************************************
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c |****************************************
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c |***************************************************************
c |****************************************************************| ( 7/999) NodeCount: 6220
12.09/12.14	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 |************************************************************
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c |***************************************************************
c |****************************************************************| ( 8/999) NodeCount: 6295
12.19/12.20	c |----------------------------------------------------------------|
c |********************************
c |****************************************
c |*****************************************
c |******************************************
c |********************************************
c |************************************************
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c |**************************************************
c |****************************************************
c |********************************************************
c |*********************************************************
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c |************************************************************
c |****************************************************************| ( 9/999) NodeCount: 6301
12.19/12.21	c |----------------------------------------------------------------|
c |
12.19/12.21	c
12.19/12.21	c main():: nodeCount: 6301
12.19/12.21	c main():: dead ends in main: 74
12.19/12.21	c main():: lookAheadCount: 851500
12.19/12.21	c main():: unitResolveCount: 712166
12.19/12.21	c main():: time=12.200000
12.19/12.21	c main():: necessary_assignments: 23488
12.19/12.21	c main():: bin_sat: 0, bin_unsat 0
12.19/12.21	c main():: doublelook: #: 19307, succes #: 12585
12.19/12.21	c main():: doublelook: overall 2.347 of all possible doublelooks executed
12.19/12.21	c main():: doublelook: succesrate: 65.184, average DL_trigger: 139.159
12.19/12.21	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-1718251-1240634874/watcher-1718251-1240634874 -o /tmp/evaluation-result-1718251-1240634874/solver-1718251-1240634874 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1718251-1240634874.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: 1.22 1.02 1.01 3/64 17287
/proc/meminfo: memFree=944248/2055920 swapFree=4192956/4192956
[pid=17287] ppid=17285 vsize=836 CPUtime=0
/proc/17287/stat : 17287 (march_nn) R 17285 17287 17162 0 -1 4194304 109 0 0 0 0 0 0 0 18 0 1 0 91520669 856064 94 1992294400 134512640 135197250 4294956224 18446744073709551615 134848662 0 0 4096 0 0 0 0 17 1 0 0
/proc/17287/statm: 209 94 59 167 0 40 0

[startup+0.103521 s]
/proc/loadavg: 1.22 1.02 1.01 3/64 17287
/proc/meminfo: memFree=944248/2055920 swapFree=4192956/4192956
[pid=17287] ppid=17285 vsize=2080 CPUtime=0.09
/proc/17287/stat : 17287 (march_nn) R 17285 17287 17162 0 -1 4194304 312 0 0 0 9 0 0 0 18 0 1 0 91520669 2129920 295 1992294400 134512640 135197250 4294956224 18446744073709551615 134539289 0 0 4096 0 0 0 0 17 1 0 0
/proc/17287/statm: 520 295 94 167 0 351 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2080

[startup+0.201532 s]
/proc/loadavg: 1.22 1.02 1.01 3/64 17287
/proc/meminfo: memFree=944248/2055920 swapFree=4192956/4192956
[pid=17287] ppid=17285 vsize=2212 CPUtime=0.19
/proc/17287/stat : 17287 (march_nn) R 17285 17287 17162 0 -1 4194304 329 0 0 0 19 0 0 0 18 0 1 0 91520669 2265088 312 1992294400 134512640 135197250 4294956224 18446744073709551615 134539243 0 0 4096 0 0 0 0 17 1 0 0
/proc/17287/statm: 553 312 94 167 0 384 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 2212

[startup+0.301544 s]
/proc/loadavg: 1.22 1.02 1.01 3/64 17287
/proc/meminfo: memFree=944248/2055920 swapFree=4192956/4192956
[pid=17287] ppid=17285 vsize=2344 CPUtime=0.29
/proc/17287/stat : 17287 (march_nn) R 17285 17287 17162 0 -1 4194304 347 0 0 0 29 0 0 0 19 0 1 0 91520669 2400256 330 1992294400 134512640 135197250 4294956224 18446744073709551615 134525856 0 0 4096 0 0 0 0 17 1 0 0
/proc/17287/statm: 586 330 94 167 0 417 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2344

[startup+0.70159 s]
/proc/loadavg: 1.22 1.02 1.01 3/64 17287
/proc/meminfo: memFree=944248/2055920 swapFree=4192956/4192956
[pid=17287] ppid=17285 vsize=2344 CPUtime=0.69
/proc/17287/stat : 17287 (march_nn) R 17285 17287 17162 0 -1 4194304 373 0 0 0 69 0 0 0 22 0 1 0 91520669 2400256 356 1992294400 134512640 135197250 4294956224 18446744073709551615 134718558 0 0 4096 0 0 0 0 17 1 0 0
/proc/17287/statm: 586 356 94 167 0 417 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2344

[startup+1.50168 s]
/proc/loadavg: 1.22 1.02 1.01 2/65 17288
/proc/meminfo: memFree=943152/2055920 swapFree=4192956/4192956
[pid=17287] ppid=17285 vsize=2476 CPUtime=1.49
/proc/17287/stat : 17287 (march_nn) R 17285 17287 17162 0 -1 4194304 398 0 0 0 149 0 0 0 25 0 1 0 91520669 2535424 381 1992294400 134512640 135197250 4294956224 18446744073709551615 134548562 0 0 4096 0 0 0 0 17 1 0 0
/proc/17287/statm: 619 381 94 167 0 450 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2476

[startup+3.10187 s]
/proc/loadavg: 1.20 1.02 1.00 2/65 17288
/proc/meminfo: memFree=942896/2055920 swapFree=4192956/4192956
[pid=17287] ppid=17285 vsize=2672 CPUtime=3.09
/proc/17287/stat : 17287 (march_nn) R 17285 17287 17162 0 -1 4194304 437 0 0 0 309 0 0 0 25 0 1 0 91520669 2736128 420 1992294400 134512640 135197250 4294956224 18446744073709551615 134553248 0 0 4096 0 0 0 0 17 1 0 0
/proc/17287/statm: 668 420 94 167 0 499 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2672

[startup+6.30123 s]
/proc/loadavg: 1.20 1.02 1.00 2/65 17288
/proc/meminfo: memFree=942576/2055920 swapFree=4192956/4192956
[pid=17287] ppid=17285 vsize=2852 CPUtime=6.29
/proc/17287/stat : 17287 (march_nn) R 17285 17287 17162 0 -1 4194304 486 0 0 0 629 0 0 0 25 0 1 0 91520669 2920448 469 1992294400 134512640 135197250 4294956224 18446744073709551615 134553713 0 0 4096 0 0 0 0 17 1 0 0
/proc/17287/statm: 713 469 94 167 0 544 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2852

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

[startup+6.40125 s]
/proc/loadavg: 1.20 1.02 1.00 2/65 17288
/proc/meminfo: memFree=942576/2055920 swapFree=4192956/4192956
[pid=17287] ppid=17285 vsize=2852 CPUtime=6.39
/proc/17287/stat : 17287 (march_nn) R 17285 17287 17162 0 -1 4194304 486 0 0 0 639 0 0 0 25 0 1 0 91520669 2920448 469 1992294400 134512640 135197250 4294956224 18446744073709551615 134553546 0 0 4096 0 0 0 0 17 1 0 0
/proc/17287/statm: 713 469 94 167 0 544 0
Current children cumulated CPU time (s) 6.39
Current children cumulated vsize (KiB) 2852

[startup+9.60162 s]
/proc/loadavg: 1.18 1.02 1.00 2/65 17288
/proc/meminfo: memFree=942448/2055920 swapFree=4192956/4192956
[pid=17287] ppid=17285 vsize=3172 CPUtime=9.59
/proc/17287/stat : 17287 (march_nn) R 17285 17287 17162 0 -1 4194304 543 0 0 0 959 0 0 0 25 0 1 0 91520669 3248128 526 1992294400 134512640 135197250 4294956224 18446744073709551615 134528509 0 0 4096 0 0 0 0 17 1 0 0
/proc/17287/statm: 793 526 94 167 0 624 0
Current children cumulated CPU time (s) 9.59
Current children cumulated vsize (KiB) 3172

[startup+11.2018 s]
/proc/loadavg: 1.18 1.02 1.00 2/65 17288
/proc/meminfo: memFree=942128/2055920 swapFree=4192956/4192956
[pid=17287] ppid=17285 vsize=3172 CPUtime=11.19
/proc/17287/stat : 17287 (march_nn) R 17285 17287 17162 0 -1 4194304 560 0 0 0 1119 0 0 0 25 0 1 0 91520669 3248128 543 1992294400 134512640 135197250 4294956224 18446744073709551615 134539289 0 0 4096 0 0 0 0 17 1 0 0
/proc/17287/statm: 793 543 94 167 0 624 0
Current children cumulated CPU time (s) 11.19
Current children cumulated vsize (KiB) 3172

[startup+12.0029 s]
/proc/loadavg: 1.18 1.02 1.00 2/65 17288
/proc/meminfo: memFree=942128/2055920 swapFree=4192956/4192956
[pid=17287] ppid=17285 vsize=3240 CPUtime=11.99
/proc/17287/stat : 17287 (march_nn) R 17285 17287 17162 0 -1 4194304 569 0 0 0 1199 0 0 0 25 0 1 0 91520669 3317760 552 1992294400 134512640 135197250 4294956224 18446744073709551615 134539323 0 0 4096 0 0 0 0 17 1 0 0
/proc/17287/statm: 810 552 94 167 0 641 0
Current children cumulated CPU time (s) 11.99
Current children cumulated vsize (KiB) 3240

[startup+12.2059 s]
/proc/loadavg: 1.17 1.02 1.00 2/65 17288
/proc/meminfo: memFree=942064/2055920 swapFree=4192956/4192956
[pid=17287] ppid=17285 vsize=3240 CPUtime=12.19
/proc/17287/stat : 17287 (march_nn) R 17285 17287 17162 0 -1 4194304 571 0 0 0 1219 0 0 0 25 0 1 0 91520669 3317760 554 1992294400 134512640 135197250 4294956224 18446744073709551615 134602962 0 0 4096 0 0 0 0 17 1 0 0
/proc/17287/statm: 810 554 94 167 0 641 0
Current children cumulated CPU time (s) 12.19
Current children cumulated vsize (KiB) 3240

Child status: 20
Real time (s): 12.2164
CPU time (s): 12.2111
CPU user time (s): 12.2021
CPU system time (s): 0.008998
CPU usage (%): 99.9571
Max. virtual memory (cumulated for all children) (KiB): 3240

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 12.2021
system time used= 0.008998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 572
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= 156

runsolver used 0.012998 second user time and 0.040993 second system time

The end

Launcher Data 

Begin job on node20 at 2009-04-25 06:47:54
IDJOB=1718251
IDBENCH=20473
IDSOLVER=522
FILE ID=node20/1718251-1240634874
PBS_JOBID= 9186442
Free space on /tmp= 66248 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT07/industrial/jarvisalo/eq.atree.braun.8.unsat.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1718251-1240634874/watcher-1718251-1240634874 -o /tmp/evaluation-result-1718251-1240634874/solver-1718251-1240634874 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1718251-1240634874.cnf

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

MD5SUM BENCH= 35a8bbabf9cb954216ad71150cb47290
RANDOM SEED=1648142976

node20.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		: 3000.214
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	: 5931.00
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		: 3000.214
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:        944728 kB
Buffers:         78876 kB
Cached:         932216 kB
SwapCached:          0 kB
Active:         142700 kB
Inactive:       882280 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        944728 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:             824 kB
Writeback:           0 kB
Mapped:          23612 kB
Slab:            72252 kB
Committed_AS:   356216 kB
PageTables:       1396 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= 66244 MiB
End job on node20 at 2009-04-25 06:48:07