Trace number 1725256

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
march_hi hiUNSAT 61.0537 61.0818

General information on the benchmark

Namecrafted/Medium/contest05/sabharwal/
counting-easier-php-012-010.sat05-1172.reshuffled-07.cnf
MD5SUM9b15e90c034f4532d9c5a9491fda1777
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.249961
Satisfiable
(Un)Satisfiability was proved
Number of variables120
Number of clauses672
Sum of the clauses size1440
Maximum clause length10
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2660
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 512

Solver Data 

0.00/0.00	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.00	c main()::  **                Copyright (C) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
0.00/0.00	c main()::   *  This program may be redistributed and/or modified under the terms of the GNU Gereral Public License  *
0.00/0.00	c main()::
0.00/0.00	c initFormula():: searching for DIMACS p-line....
0.00/0.00	c initFormula():: the DIMACS p-line indicates a CNF of 120 variables and 672 clauses.
0.00/0.00	c parseCNF():: parsing....
0.00/0.00	c parseCNF():: the CNF contains 0 unary clauses.
0.00/0.00	c runParser():: parsing was successful, warming up engines...
0.00/0.00	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.00	c preprocessing fase I completed:: there are now 120 free variables and 672 clauses.
0.00/0.00	c stat :: sign balance is biased by 9.016
0.00/0.00	c using k-SAT heuristics (size based diff)
0.00/0.00	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.00	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.00	c main():: clause / variable ratio: ( 672 / 120 ) = 5.60
0.00/0.00	c longest clause has size 10
0.00/0.00	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.00	c number of free variables = 120
0.00/0.00	c dynamic_preselect_setsize :: off
0.00/0.00	c main():: all systems go!
0.00/0.00	c |----------------------------------------------------------------|
c |*
c |**
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c |********************************
c |****************************************************************| ( 0/12) NodeCount: 131
0.01/0.03	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 1/12) NodeCount: 2985
0.30/0.34	c |----------------------------------------------------------------|
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c |****************************************************************| ( 2/12) NodeCount: 11079
1.10/1.19	c |----------------------------------------------------------------|
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c |****************************************************************| ( 3/12) NodeCount: 37452
3.89/3.95	c |----------------------------------------------------------------|
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c |****************************************************************| ( 4/12) NodeCount: 128610
13.39/13.45	c |----------------------------------------------------------------|
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c |****************************************************************| ( 5/12) NodeCount: 217050
22.58/22.61	c |----------------------------------------------------------------|
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c |****************************************************************| ( 6/12) NodeCount: 349862
36.28/36.35	c |----------------------------------------------------------------|
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c |****************************************************************| ( 7/12) NodeCount: 535556
55.17/55.29	c |----------------------------------------------------------------|
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c |****************************************************************| ( 8/12) NodeCount: 589743
60.67/60.79	c |----------------------------------------------------------------|
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c |****************************************************************| ( 9/12) NodeCount: 592421
60.97/61.06	c |----------------------------------------------------------------|
c |****
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c |****************
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c |****************************************************************| (10/12) NodeCount: 592545
60.97/61.08	c |----------------------------------------------------------------|
c |
60.97/61.08	c
60.97/61.08	c main():: nodeCount: 592545
60.97/61.08	c main():: dead ends in main: 26
60.97/61.08	c main():: lookAheadCount: 19618079
60.97/61.08	c main():: unitResolveCount: 3544750
60.97/61.08	c main():: time=61.060000
60.97/61.08	c main():: necessary_assignments: 36
60.97/61.08	c main():: bin_sat: 0, bin_unsat 0
60.97/61.08	c main():: doublelook: #: 3469275, succes #: 1336172
60.97/61.08	c main():: doublelook: overall 17.906 of all possible doublelooks executed
60.97/61.08	c main():: doublelook: succesrate: 38.514, average DL_trigger: 1.022
60.97/61.08	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-1725256-1240703630/watcher-1725256-1240703630 -o /tmp/evaluation-result-1725256-1240703630/solver-1725256-1240703630 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1725256-1240703630.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: 0.92 0.98 1.07 3/64 15452
/proc/meminfo: memFree=1902032/2055920 swapFree=4192812/4192956
[pid=15452] ppid=15450 vsize=1008 CPUtime=0
/proc/15452/stat : 15452 (march_hi) R 15450 15452 14964 0 -1 4194304 149 0 0 0 0 0 0 0 18 0 1 0 98397729 1032192 132 1992294400 134512640 135197378 4294956224 18446744073709551615 134561007 0 0 4096 0 0 0 0 17 1 0 0
/proc/15452/statm: 252 132 88 167 0 83 0

[startup+0.0204329 s]
/proc/loadavg: 0.92 0.98 1.07 3/64 15452
/proc/meminfo: memFree=1902032/2055920 swapFree=4192812/4192956
[pid=15452] ppid=15450 vsize=1008 CPUtime=0.01
/proc/15452/stat : 15452 (march_hi) R 15450 15452 14964 0 -1 4194304 153 0 0 0 1 0 0 0 18 0 1 0 98397729 1032192 136 1992294400 134512640 135197378 4294956224 18446744073709551615 134524834 0 0 4096 0 0 0 0 17 1 0 0
/proc/15452/statm: 252 136 90 167 0 83 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1008

[startup+0.101449 s]
/proc/loadavg: 0.92 0.98 1.07 3/64 15452
/proc/meminfo: memFree=1902032/2055920 swapFree=4192812/4192956
[pid=15452] ppid=15450 vsize=1008 CPUtime=0.1
/proc/15452/stat : 15452 (march_hi) R 15450 15452 14964 0 -1 4194304 156 0 0 0 10 0 0 0 18 0 1 0 98397729 1032192 139 1992294400 134512640 135197378 4294956224 18446744073709551615 134618032 0 0 4096 0 0 0 0 17 1 0 0
/proc/15452/statm: 252 139 93 167 0 83 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1008

[startup+0.301488 s]
/proc/loadavg: 0.92 0.98 1.07 3/64 15452
/proc/meminfo: memFree=1902032/2055920 swapFree=4192812/4192956
[pid=15452] ppid=15450 vsize=1008 CPUtime=0.3
/proc/15452/stat : 15452 (march_hi) R 15450 15452 14964 0 -1 4194304 157 0 0 0 30 0 0 0 19 0 1 0 98397729 1032192 140 1992294400 134512640 135197378 4294956224 18446744073709551615 134524878 0 0 4096 0 0 0 0 17 1 0 0
/proc/15452/statm: 252 140 93 167 0 83 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1008

[startup+0.701568 s]
/proc/loadavg: 0.92 0.98 1.07 3/64 15452
/proc/meminfo: memFree=1902032/2055920 swapFree=4192812/4192956
[pid=15452] ppid=15450 vsize=1008 CPUtime=0.7
/proc/15452/stat : 15452 (march_hi) R 15450 15452 14964 0 -1 4194304 160 0 0 0 70 0 0 0 22 0 1 0 98397729 1032192 143 1992294400 134512640 135197378 4294956224 18446744073709551615 134713223 0 0 4096 0 0 0 0 17 1 0 0
/proc/15452/statm: 252 143 93 167 0 83 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 1008

[startup+1.50173 s]
/proc/loadavg: 0.92 0.98 1.07 2/65 15453
/proc/meminfo: memFree=1901832/2055920 swapFree=4192812/4192956
[pid=15452] ppid=15450 vsize=1008 CPUtime=1.5
/proc/15452/stat : 15452 (march_hi) R 15450 15452 14964 0 -1 4194304 163 0 0 0 150 0 0 0 25 0 1 0 98397729 1032192 146 1992294400 134512640 135197378 4294956224 18446744073709551615 134524842 0 0 4096 0 0 0 0 17 1 0 0
/proc/15452/statm: 252 146 93 167 0 83 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 1008

[startup+3.10104 s]
/proc/loadavg: 0.92 0.98 1.07 2/65 15453
/proc/meminfo: memFree=1901704/2055920 swapFree=4192812/4192956
[pid=15452] ppid=15450 vsize=1008 CPUtime=3.09
/proc/15452/stat : 15452 (march_hi) R 15450 15452 14964 0 -1 4194304 164 0 0 0 309 0 0 0 25 0 1 0 98397729 1032192 147 1992294400 134512640 135197378 4294956224 18446744073709551615 134539251 0 0 4096 0 0 0 0 17 1 0 0
/proc/15452/statm: 252 147 93 167 0 83 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1008

[startup+6.30168 s]
/proc/loadavg: 0.93 0.98 1.07 2/65 15453
/proc/meminfo: memFree=1901576/2055920 swapFree=4192812/4192956
[pid=15452] ppid=15450 vsize=1192 CPUtime=6.29
/proc/15452/stat : 15452 (march_hi) R 15450 15452 14964 0 -1 4194304 180 0 0 0 629 0 0 0 25 0 1 0 98397729 1220608 163 1992294400 134512640 135197378 4294956224 18446744073709551615 134539243 0 0 4096 0 0 0 0 17 1 0 0
/proc/15452/statm: 298 163 93 167 0 129 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1192

[startup+12.7019 s]
/proc/loadavg: 0.93 0.98 1.07 2/65 15453
/proc/meminfo: memFree=1901512/2055920 swapFree=4192812/4192956
[pid=15452] ppid=15450 vsize=1192 CPUtime=12.69
/proc/15452/stat : 15452 (march_hi) R 15450 15452 14964 0 -1 4194304 182 0 0 0 1269 0 0 0 25 0 1 0 98397729 1220608 165 1992294400 134512640 135197378 4294956224 18446744073709551615 134649808 0 0 4096 0 0 0 0 17 1 0 0
/proc/15452/statm: 298 165 93 167 0 129 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1192

[startup+25.5015 s]
/proc/loadavg: 0.95 0.98 1.07 2/65 15453
/proc/meminfo: memFree=1901448/2055920 swapFree=4192812/4192956
[pid=15452] ppid=15450 vsize=1192 CPUtime=25.48
/proc/15452/stat : 15452 (march_hi) R 15450 15452 14964 0 -1 4194304 197 0 0 0 2548 0 0 0 25 0 1 0 98397729 1220608 180 1992294400 134512640 135197378 4294956224 18446744073709551615 134524821 0 0 4096 0 0 0 0 17 1 0 0
/proc/15452/statm: 298 180 93 167 0 129 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1192

[startup+51.1016 s]
/proc/loadavg: 0.96 0.98 1.06 2/65 15453
/proc/meminfo: memFree=1901384/2055920 swapFree=4192812/4192956
[pid=15452] ppid=15450 vsize=1192 CPUtime=51.07
/proc/15452/stat : 15452 (march_hi) R 15450 15452 14964 0 -1 4194304 201 0 0 0 5107 0 0 0 25 0 1 0 98397729 1220608 184 1992294400 134512640 135197378 4294956224 18446744073709551615 134557212 0 0 4096 0 0 0 0 17 1 0 0
/proc/15452/statm: 298 184 93 167 0 129 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 1192

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

[startup+57.5018 s]
/proc/loadavg: 0.97 0.98 1.06 2/65 15453
/proc/meminfo: memFree=1901256/2055920 swapFree=4192812/4192956
[pid=15452] ppid=15450 vsize=1336 CPUtime=57.47
/proc/15452/stat : 15452 (march_hi) R 15450 15452 14964 0 -1 4194304 236 0 0 0 5747 0 0 0 25 0 1 0 98397729 1368064 217 1992294400 134512640 135197378 4294956224 18446744073709551615 134539072 0 0 4096 0 0 0 0 17 1 0 0
/proc/15452/statm: 334 217 93 167 0 165 0
Current children cumulated CPU time (s) 57.47
Current children cumulated vsize (KiB) 1336

[startup+59.1012 s]
/proc/loadavg: 0.97 0.98 1.06 2/65 15453
/proc/meminfo: memFree=1901256/2055920 swapFree=4192812/4192956
[pid=15452] ppid=15450 vsize=1336 CPUtime=59.07
/proc/15452/stat : 15452 (march_hi) R 15450 15452 14964 0 -1 4194304 236 0 0 0 5907 0 0 0 25 0 1 0 98397729 1368064 217 1992294400 134512640 135197378 4294956224 18446744073709551615 134713207 0 0 4096 0 0 0 0 17 1 0 0
/proc/15452/statm: 334 217 93 167 0 165 0
Current children cumulated CPU time (s) 59.07
Current children cumulated vsize (KiB) 1336

[startup+59.9013 s]
/proc/loadavg: 0.97 0.98 1.06 2/65 15453
/proc/meminfo: memFree=1901256/2055920 swapFree=4192812/4192956
[pid=15452] ppid=15450 vsize=1336 CPUtime=59.87
/proc/15452/stat : 15452 (march_hi) R 15450 15452 14964 0 -1 4194304 236 0 0 0 5987 0 0 0 25 0 1 0 98397729 1368064 217 1992294400 134512640 135197378 4294956224 18446744073709551615 134539354 0 0 4096 0 0 0 0 17 1 0 0
/proc/15452/statm: 334 217 93 167 0 165 0
Current children cumulated CPU time (s) 59.87
Current children cumulated vsize (KiB) 1336

[startup+60.7015 s]
/proc/loadavg: 0.97 0.98 1.06 2/65 15453
/proc/meminfo: memFree=1901256/2055920 swapFree=4192812/4192956
[pid=15452] ppid=15450 vsize=1336 CPUtime=60.67
/proc/15452/stat : 15452 (march_hi) R 15450 15452 14964 0 -1 4194304 236 0 0 0 6067 0 0 0 25 0 1 0 98397729 1368064 217 1992294400 134512640 135197378 4294956224 18446744073709551615 134592835 0 0 4096 0 0 0 0 17 1 0 0
/proc/15452/statm: 334 217 93 167 0 165 0
Current children cumulated CPU time (s) 60.67
Current children cumulated vsize (KiB) 1336

[startup+60.9015 s]
/proc/loadavg: 0.97 0.98 1.06 2/65 15453
/proc/meminfo: memFree=1901256/2055920 swapFree=4192812/4192956
[pid=15452] ppid=15450 vsize=1336 CPUtime=60.87
/proc/15452/stat : 15452 (march_hi) R 15450 15452 14964 0 -1 4194304 237 0 0 0 6087 0 0 0 25 0 1 0 98397729 1368064 218 1992294400 134512640 135197378 4294956224 18446744073709551615 134618465 0 0 4096 0 0 0 0 17 1 0 0
/proc/15452/statm: 334 218 93 167 0 165 0
Current children cumulated CPU time (s) 60.87
Current children cumulated vsize (KiB) 1336

[startup+61.0015 s]
/proc/loadavg: 0.97 0.98 1.06 2/65 15453
/proc/meminfo: memFree=1901256/2055920 swapFree=4192812/4192956
[pid=15452] ppid=15450 vsize=1336 CPUtime=60.97
/proc/15452/stat : 15452 (march_hi) R 15450 15452 14964 0 -1 4194304 237 0 0 0 6097 0 0 0 25 0 1 0 98397729 1368064 218 1992294400 134512640 135197378 4294956224 18446744073709551615 134628241 0 0 4096 0 0 0 0 17 1 0 0
/proc/15452/statm: 334 218 93 167 0 165 0
Current children cumulated CPU time (s) 60.97
Current children cumulated vsize (KiB) 1336

Child status: 20
Real time (s): 61.0818
CPU time (s): 61.0537
CPU user time (s): 61.0517
CPU system time (s): 0.001999
CPU usage (%): 99.9541
Max. virtual memory (cumulated for all children) (KiB): 1336

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 61.0517
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 238
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= 167

runsolver used 0.054991 second user time and 0.13098 second system time

The end

Launcher Data 

Begin job on node1 at 2009-04-26 01:53:50
IDJOB=1725256
IDBENCH=24575
IDSOLVER=521
FILE ID=node1/1725256-1240703630
PBS_JOBID= 9186762
Free space on /tmp= 66336 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT07/crafted/Medium/contest05/sabharwal/counting-easier-php-012-010.sat05-1172.reshuffled-07.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1725256-1240703630/watcher-1725256-1240703630 -o /tmp/evaluation-result-1725256-1240703630/solver-1725256-1240703630 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1725256-1240703630.cnf

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

MD5SUM BENCH= 9b15e90c034f4532d9c5a9491fda1777
RANDOM SEED=721366251

node1.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		: 3000.259
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		: 3000.259
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:       1902512 kB
Buffers:         12728 kB
Cached:          73556 kB
SwapCached:        144 kB
Active:          51068 kB
Inactive:        49176 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1902512 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:             784 kB
Writeback:           0 kB
Mapped:          23696 kB
Slab:            39136 kB
Committed_AS:   331096 kB
PageTables:       1436 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= 66336 MiB
End job on node1 at 2009-04-26 01:54:52