Trace number 371688

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, and are wall clock time (not CPU 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 KS 2007-02-08SAT 18.1252 18.1318

General information on the benchmark

Namerandom/OnTreshold/7SAT/v45/
unif-k7-r89-v45-c4005-S1344401737-18.SAT.shuffled.cnf
MD5SUMed57e6bcaed7669ca4ea0f0e14afc5f1
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.076987
Satisfiable
(Un)Satisfiability was proved
Number of variables45
Number of clauses4005
Sum of the clauses size28035
Maximum clause length7
Minimum clause length7
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 54005

Solver Data (download as text)

0.49/0.55	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.49/0.55	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
0.49/0.55	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
0.49/0.55	c main()::
0.49/0.55	c initFormula():: searching for DIMACS p-line....
0.49/0.55	c full lookahead due to high density!
0.49/0.55	c initFormula():: the DIMACS p-line indicates a CNF of 45 variables and 4005 clauses.
0.49/0.55	c parseCNF():: parsing....
0.49/0.55	c parseCNF():: the CNF contains 0 unary clauses.
0.49/0.55	c runParser():: parsing was successful, warming up engines...
0.49/0.55	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.49/0.55	c preprocessing fase I completed:: there are now 45 free variables and 4005 clauses.
0.49/0.55	c stat :: sign balance is biased by 0.008
0.49/0.55	c shorten_equivalence(): average equivalence length reduced from nan to nan
0.49/0.55	c using k-SAT heuristics (size based diff)
0.49/0.55	c longest clause has size 7
0.49/0.55	c simplify_formula():: removed 0 tautological, 0 satisfied and 11 duplicate clauses
0.49/0.55	c resolvent_look() :: found 3 resolvents
0.49/0.55	c main():: clause / variable ratio: ( 4008 / 45 ) = 89.07
0.49/0.55	c longest clause has size 7
0.49/0.55	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.49/0.55	c dynamic_preselect_setsize :: off
0.49/0.55	c suggested doublelook initial :: 0
0.49/0.55	c main():: all systems go!
0.49/0.55	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| 0 NC: 153 JD: 10
0.59/0.61	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
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c |***************************************************************
c |****************************************************************| 1 NC: 1118 JD: 10
0.89/0.97	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 |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| 2 NC: 5025 JD: 10
2.39/2.41	c |----------------------------------------------------------------|
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 |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| 3 NC: 13829 JD: 10
5.69/5.74	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 |********************************
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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 |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| 4 NC: 26736 JD: 10
10.49/10.57	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 |************************
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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 |****************************************
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c |***************************************************************
c |****************************************************************| 5 NC: 39656 JD: 10
15.39/15.44	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 |*****************************************
18.09/18.12	c solution bin :: 0101101011.1010000000000000000000
18.09/18.12	c direction branchin :: current_rights = 8
18.09/18.12	
c |*****************************************
18.09/18.12	c
18.09/18.12	c main():: nodeCount: 46582
18.09/18.12	c main():: dead ends in main: 63
18.09/18.12	c main():: lookAheadCount: 1941466
18.09/18.12	c main():: unitResolveCount: 80020
18.09/18.12	c main():: time=18.120000
18.09/18.12	c main():: necessary_assignments: 93
18.09/18.12	c main():: bin_sat: 0, bin_unsat 0
18.09/18.12	c main():: doublelook: #: 137373, succes #: 110525
18.09/18.12	c main():: doublelook: overall 7.224 of all possible doublelooks executed
18.09/18.12	c main():: doublelook: succesrate: 80.456, average DL_trigger: 13.840
18.09/18.12	c main():: SOLUTION VERIFIED :-)
18.09/18.12	s SATISFIABLE
18.09/18.12	v -1 2 -3 -4 5 -6 7 8 -9 -10 -11 12 13 -14 15 16 -17 -18 -19 20 21 22 23 24 25 26 27 28 -29 30 31 -32 -33 -34 -35 36 -37 -38 39 -40 41 42 43 44 45 0

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node63/watcher-371688-1177544810 -o ROOT/results/node63/solver-371688-1177544810 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/371688-1177544810/march_ks /tmp/evaluation/371688-1177544810/instance-371688-1177544810.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): 7500 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: 0.00 0.03 0.27 2/64 7233
/proc/meminfo: memFree=1662612/2055920 swapFree=4182896/4192956
[pid=7233] ppid=7231 vsize=656 CPUtime=0
/proc/7233/stat : 7233 (march_ks) R 7231 7233 7179 0 -1 4194304 88 0 0 0 0 0 0 0 18 0 1 0 230470917 671744 74 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134684029 0 0 4096 0 0 0 0 17 1 0 0
/proc/7233/statm: 164 75 47 123 0 39 0

[startup+0.0754121 s]
/proc/loadavg: 0.00 0.03 0.27 2/64 7233
/proc/meminfo: memFree=1662612/2055920 swapFree=4182896/4192956
[pid=7233] ppid=7231 vsize=1244 CPUtime=0.07
/proc/7233/stat : 7233 (march_ks) R 7231 7233 7179 0 -1 4194304 372 0 0 0 7 0 0 0 18 0 1 0 230470917 1273856 227 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134567048 0 0 4096 0 0 0 0 17 1 0 0
/proc/7233/statm: 311 227 67 123 0 186 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1244

[startup+0.101413 s]
/proc/loadavg: 0.00 0.03 0.27 2/64 7233
/proc/meminfo: memFree=1662612/2055920 swapFree=4182896/4192956
[pid=7233] ppid=7231 vsize=1244 CPUtime=0.09
/proc/7233/stat : 7233 (march_ks) R 7231 7233 7179 0 -1 4194304 372 0 0 0 9 0 0 0 18 0 1 0 230470917 1273856 227 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134567058 0 0 4096 0 0 0 0 17 1 0 0
/proc/7233/statm: 311 227 67 123 0 186 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1244

[startup+0.301434 s]
/proc/loadavg: 0.00 0.03 0.27 2/64 7233
/proc/meminfo: memFree=1662612/2055920 swapFree=4182896/4192956
[pid=7233] ppid=7231 vsize=1244 CPUtime=0.29
/proc/7233/stat : 7233 (march_ks) R 7231 7233 7179 0 -1 4194304 372 0 0 0 29 0 0 0 19 0 1 0 230470917 1273856 227 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134536953 0 0 4096 0 0 0 0 17 1 0 0
/proc/7233/statm: 311 227 67 123 0 186 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1244

[startup+0.701476 s]
/proc/loadavg: 0.00 0.03 0.27 2/64 7233
/proc/meminfo: memFree=1662612/2055920 swapFree=4182896/4192956
[pid=7233] ppid=7231 vsize=1592 CPUtime=0.69
/proc/7233/stat : 7233 (march_ks) R 7231 7233 7179 0 -1 4194304 424 0 0 0 69 0 0 0 22 0 1 0 230470917 1630208 279 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134585134 0 0 4096 0 0 0 0 17 1 0 0
/proc/7233/statm: 398 279 72 123 0 273 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1592

[startup+1.50156 s]
/proc/loadavg: 0.08 0.04 0.27 2/65 7234
/proc/meminfo: memFree=1661836/2055920 swapFree=4182896/4192956
[pid=7233] ppid=7231 vsize=1592 CPUtime=1.49
/proc/7233/stat : 7233 (march_ks) R 7231 7233 7179 0 -1 4194304 424 0 0 0 149 0 0 0 25 0 1 0 230470917 1630208 279 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134526928 0 0 4096 0 0 0 0 17 1 0 0
/proc/7233/statm: 398 279 72 123 0 273 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1592

[startup+3.10173 s]
/proc/loadavg: 0.08 0.04 0.27 2/65 7234
/proc/meminfo: memFree=1661708/2055920 swapFree=4182896/4192956
[pid=7233] ppid=7231 vsize=1592 CPUtime=3.09
/proc/7233/stat : 7233 (march_ks) R 7231 7233 7179 0 -1 4194304 424 0 0 0 309 0 0 0 25 0 1 0 230470917 1630208 279 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134537968 0 0 4096 0 0 0 0 17 1 0 0
/proc/7233/statm: 398 279 72 123 0 273 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1592

[startup+6.30107 s]
/proc/loadavg: 0.08 0.04 0.27 2/65 7234
/proc/meminfo: memFree=1661580/2055920 swapFree=4182896/4192956
[pid=7233] ppid=7231 vsize=1592 CPUtime=6.29
/proc/7233/stat : 7233 (march_ks) R 7231 7233 7179 0 -1 4194304 424 0 0 0 629 0 0 0 25 0 1 0 230470917 1630208 279 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134585127 0 0 4096 0 0 0 0 17 1 0 0
/proc/7233/statm: 398 279 72 123 0 273 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1592

[startup+12.7027 s]
/proc/loadavg: 0.22 0.08 0.28 2/65 7234
/proc/meminfo: memFree=1661516/2055920 swapFree=4182896/4192956
[pid=7233] ppid=7231 vsize=1592 CPUtime=12.69
/proc/7233/stat : 7233 (march_ks) R 7231 7233 7179 0 -1 4194304 424 0 0 0 1269 0 0 0 25 0 1 0 230470917 1630208 279 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134526947 0 0 4096 0 0 0 0 17 1 0 0
/proc/7233/statm: 398 279 72 123 0 273 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1592

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

[startup+15.9011 s]
/proc/loadavg: 0.22 0.08 0.28 2/65 7234
/proc/meminfo: memFree=1661516/2055920 swapFree=4182896/4192956
[pid=7233] ppid=7231 vsize=1592 CPUtime=15.89
/proc/7233/stat : 7233 (march_ks) R 7231 7233 7179 0 -1 4194304 424 0 0 0 1589 0 0 0 25 0 1 0 230470917 1630208 279 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134538419 0 0 4096 0 0 0 0 17 1 0 0
/proc/7233/statm: 398 279 72 123 0 273 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 1592

[startup+17.5013 s]
/proc/loadavg: 0.28 0.09 0.28 2/65 7234
/proc/meminfo: memFree=1661516/2055920 swapFree=4182896/4192956
[pid=7233] ppid=7231 vsize=1592 CPUtime=17.49
/proc/7233/stat : 7233 (march_ks) R 7231 7233 7179 0 -1 4194304 424 0 0 0 1749 0 0 0 25 0 1 0 230470917 1630208 279 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134585120 0 0 4096 0 0 0 0 17 1 0 0
/proc/7233/statm: 398 279 72 123 0 273 0
Current children cumulated CPU time (s) 17.49
Current children cumulated vsize (KiB) 1592

[startup+17.9013 s]
/proc/loadavg: 0.28 0.09 0.28 2/65 7234
/proc/meminfo: memFree=1661516/2055920 swapFree=4182896/4192956
[pid=7233] ppid=7231 vsize=1592 CPUtime=17.89
/proc/7233/stat : 7233 (march_ks) R 7231 7233 7179 0 -1 4194304 424 0 0 0 1789 0 0 0 25 0 1 0 230470917 1630208 279 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134541823 0 0 4096 0 0 0 0 17 1 0 0
/proc/7233/statm: 398 279 72 123 0 273 0
Current children cumulated CPU time (s) 17.89
Current children cumulated vsize (KiB) 1592

[startup+18.1013 s]
/proc/loadavg: 0.28 0.09 0.28 2/65 7234
/proc/meminfo: memFree=1661516/2055920 swapFree=4182896/4192956
[pid=7233] ppid=7231 vsize=1592 CPUtime=18.09
/proc/7233/stat : 7233 (march_ks) R 7231 7233 7179 0 -1 4194304 424 0 0 0 1809 0 0 0 25 0 1 0 230470917 1630208 279 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134547667 0 0 4096 0 0 0 0 17 1 0 0
/proc/7233/statm: 398 279 72 123 0 273 0
Current children cumulated CPU time (s) 18.09
Current children cumulated vsize (KiB) 1592

Child status: 10
Real time (s): 18.1318
CPU time (s): 18.1252
CPU user time (s): 18.1192
CPU system time (s): 0.005999
CPU usage (%): 99.9637
Max. virtual memory (cumulated for all children) (KiB): 1592

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 18.1192
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= 426
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= 8
involuntary context switches= 46

runsolver used 0.019996 second user time and 0.037994 second system time

The end

Launcher Data (download as text)

Begin job on node63 on Wed Apr 25 23:46:50 UTC 2007

IDJOB= 371688
IDBENCH= 19943
IDSOLVER= 180
FILE ID= node63/371688-1177544810

PBS_JOBID= 4696203

Free space on /tmp= 66486 MiB

SOLVER NAME= March KS 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/7SAT/v45/unif-k7-r89-v45-c4005-S1344401737-18.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/371688-1177544810/march_ks /tmp/evaluation/371688-1177544810/instance-371688-1177544810.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node63/watcher-371688-1177544810 -o ROOT/results/node63/solver-371688-1177544810 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/371688-1177544810/march_ks /tmp/evaluation/371688-1177544810/instance-371688-1177544810.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  ed57e6bcaed7669ca4ea0f0e14afc5f1

RANDOM SEED= 567977568

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node63.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.232
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		: 3000.232
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:       1663084 kB
Buffers:         28024 kB
Cached:         303204 kB
SwapCached:       4556 kB
Active:         168920 kB
Inactive:       172276 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1663084 kB
SwapTotal:     4192956 kB
SwapFree:      4182896 kB
Dirty:            2368 kB
Writeback:           0 kB
Mapped:          15240 kB
Slab:            37544 kB
Committed_AS:  2230016 kB
PageTables:       1460 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= 66486 MiB

End job on node63 on Wed Apr 25 23:47:09 UTC 2007