Trace number 1517798

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 49.3355 49.3573

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/UNKNOWN/380/
unif-k3-r4.25-v380-c1615-S999404609-010.cnf
MD5SUM5929dd8b325f87d1ae10eb412c236ac3
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark43.0345
Satisfiable
(Un)Satisfiability was proved
Number of variables380
Number of clauses1615
Sum of the clauses size4845
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31615
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) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
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 380 variables and 1615 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, 0 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 380 free variables and 1615 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.424
0.00/0.01	c using 3-SAT heuristics (occurence based diff)
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 155 duplicate clauses
0.00/0.01	c resolvent_look() :: found 94 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 380 variables and 1709 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 380 variabels and 1709 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1709 / 380 ) = 4.50
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 number of free variables = 380
0.00/0.01	c dynamic_preselect_setsize :: off
0.00/0.01	c main():: all systems go!
0.00/0.01	c |----------------------------------------------------------------|
c |*
c |**
c |****
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c |****************
c |********************************
c |****************************************************************| ( 0/999) NodeCount: 22
0.00/0.02	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 1/999) NodeCount: 253
0.03/0.08	c |----------------------------------------------------------------|
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c |****************************************************************| ( 2/999) NodeCount: 1648
0.49/0.51	c |----------------------------------------------------------------|
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c |****************************************************************| ( 3/999) NodeCount: 6815
2.39/2.42	c |----------------------------------------------------------------|
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c |****************************************************************| ( 4/999) NodeCount: 19457
7.79/7.83	c |----------------------------------------------------------------|
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c |****************************************************************| ( 5/999) NodeCount: 40230
17.98/18.05	c |----------------------------------------------------------------|
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c |****************************************************************| ( 6/999) NodeCount: 63697
30.59/30.61	c |----------------------------------------------------------------|
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c |****************************************************************| ( 7/999) NodeCount: 81746
41.08/41.17	c |----------------------------------------------------------------|
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c |****************************************************************| ( 8/999) NodeCount: 90969
46.78/46.84	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 9/999) NodeCount: 94062
48.78/48.83	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| (10/999) NodeCount: 94737
49.18/49.28	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| (11/999) NodeCount: 94829
49.27/49.34	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| (12/999) NodeCount: 94835
49.27/49.35	c |----------------------------------------------------------------|
c |
49.27/49.35	c
49.27/49.35	c main():: nodeCount: 94835
49.27/49.35	c main():: dead ends in main: 2178
49.27/49.35	c main():: lookAheadCount: 6240212
49.27/49.35	c main():: unitResolveCount: 1632095
49.27/49.35	c main():: time=49.330000
49.27/49.35	c main():: necessary_assignments: 20936
49.27/49.35	c main():: bin_sat: 0, bin_unsat 0
49.27/49.35	c main():: doublelook: #: 370769, succes #: 267382
49.27/49.35	c main():: doublelook: overall 6.150 of all possible doublelooks executed
49.27/49.35	c main():: doublelook: succesrate: 72.116, average DL_trigger: 46.971
49.27/49.35	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1517798-1238291273/watcher-1517798-1238291273 -o /tmp/evaluation-result-1517798-1238291273/solver-1517798-1238291273 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1517798-1238291273.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: 0.91 0.95 0.93 3/70 741
/proc/meminfo: memFree=1579528/2055920 swapFree=4173984/4192956
[pid=741] ppid=739 vsize=972 CPUtime=0
/proc/741/stat : 741 (march_nn) R 739 741 491 0 -1 4194304 138 0 0 0 0 0 0 0 18 0 1 0 1101792361 995328 121 1992294400 134512640 135197250 4294956240 18446744073709551615 134560984 0 0 4096 0 0 0 0 17 1 0 0
/proc/741/statm: 243 121 67 167 0 74 0

[startup+0.0350669 s]
/proc/loadavg: 0.91 0.95 0.93 3/70 741
/proc/meminfo: memFree=1579528/2055920 swapFree=4173984/4192956
[pid=741] ppid=739 vsize=1536 CPUtime=0.03
/proc/741/stat : 741 (march_nn) R 739 741 491 0 -1 4194304 241 0 0 0 3 0 0 0 18 0 1 0 1101792361 1572864 224 1992294400 134512640 135197250 4294956240 18446744073709551615 134603831 0 0 4096 0 0 0 0 17 1 0 0
/proc/741/statm: 384 224 93 167 0 215 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1536

[startup+0.101073 s]
/proc/loadavg: 0.91 0.95 0.93 3/70 741
/proc/meminfo: memFree=1579528/2055920 swapFree=4173984/4192956
[pid=741] ppid=739 vsize=1536 CPUtime=0.09
/proc/741/stat : 741 (march_nn) R 739 741 491 0 -1 4194304 250 0 0 0 9 0 0 0 18 0 1 0 1101792361 1572864 233 1992294400 134512640 135197250 4294956240 18446744073709551615 134539935 0 0 4096 0 0 0 0 17 1 0 0
/proc/741/statm: 384 233 93 167 0 215 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1536

[startup+0.301097 s]
/proc/loadavg: 0.91 0.95 0.93 3/70 741
/proc/meminfo: memFree=1579528/2055920 swapFree=4173984/4192956
[pid=741] ppid=739 vsize=1536 CPUtime=0.29
/proc/741/stat : 741 (march_nn) R 739 741 491 0 -1 4194304 265 0 0 0 29 0 0 0 19 0 1 0 1101792361 1572864 248 1992294400 134512640 135197250 4294956240 18446744073709551615 134570822 0 0 4096 0 0 0 0 17 1 0 0
/proc/741/statm: 384 248 93 167 0 215 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1536

[startup+0.701143 s]
/proc/loadavg: 0.91 0.95 0.93 3/70 741
/proc/meminfo: memFree=1579528/2055920 swapFree=4173984/4192956
[pid=741] ppid=739 vsize=1676 CPUtime=0.69
/proc/741/stat : 741 (march_nn) R 739 741 491 0 -1 4194304 287 0 0 0 69 0 0 0 22 0 1 0 1101792361 1716224 270 1992294400 134512640 135197250 4294956240 18446744073709551615 134556739 0 0 4096 0 0 0 0 17 1 0 0
/proc/741/statm: 419 270 93 167 0 250 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1676

[startup+1.50124 s]
/proc/loadavg: 0.91 0.95 0.93 2/71 742
/proc/meminfo: memFree=1578752/2055920 swapFree=4173984/4192956
[pid=741] ppid=739 vsize=1812 CPUtime=1.49
/proc/741/stat : 741 (march_nn) R 739 741 491 0 -1 4194304 327 0 0 0 149 0 0 0 25 0 1 0 1101792361 1855488 310 1992294400 134512640 135197250 4294956240 18446744073709551615 134525322 0 0 4096 0 0 0 0 17 1 0 0
/proc/741/statm: 453 310 93 167 0 284 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1812

[startup+3.10142 s]
/proc/loadavg: 0.91 0.95 0.93 2/71 742
/proc/meminfo: memFree=1578432/2055920 swapFree=4173984/4192956
[pid=741] ppid=739 vsize=1980 CPUtime=3.09
/proc/741/stat : 741 (march_nn) R 739 741 491 0 -1 4194304 352 0 0 0 309 0 0 0 25 0 1 0 1101792361 2027520 335 1992294400 134512640 135197250 4294956240 18446744073709551615 134611693 0 0 4096 0 0 0 0 17 1 0 0
/proc/741/statm: 495 335 93 167 0 326 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1980

[startup+6.30179 s]
/proc/loadavg: 0.92 0.95 0.93 2/71 742
/proc/meminfo: memFree=1578176/2055920 swapFree=4173984/4192956
[pid=741] ppid=739 vsize=2292 CPUtime=6.29
/proc/741/stat : 741 (march_nn) R 739 741 491 0 -1 4194304 404 0 0 0 629 0 0 0 25 0 1 0 1101792361 2347008 387 1992294400 134512640 135197250 4294956240 18446744073709551615 134548478 0 0 4096 0 0 0 0 17 1 0 0
/proc/741/statm: 573 387 93 167 0 404 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2292

[startup+12.7015 s]
/proc/loadavg: 0.93 0.95 0.93 2/71 742
/proc/meminfo: memFree=1577664/2055920 swapFree=4173984/4192956
[pid=741] ppid=739 vsize=3200 CPUtime=12.69
/proc/741/stat : 741 (march_nn) R 739 741 491 0 -1 4194304 550 0 0 0 1269 0 0 0 25 0 1 0 1101792361 3276800 533 1992294400 134512640 135197250 4294956240 18446744073709551615 134542296 0 0 4096 0 0 0 0 17 1 0 0
/proc/741/statm: 800 533 93 167 0 631 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 3200

[startup+25.502 s]
/proc/loadavg: 0.94 0.96 0.93 2/71 742
/proc/meminfo: memFree=1576704/2055920 swapFree=4173984/4192956
[pid=741] ppid=739 vsize=4052 CPUtime=25.48
/proc/741/stat : 741 (march_nn) R 739 741 491 0 -1 4194304 738 0 0 0 2548 0 0 0 25 0 1 0 1101792361 4149248 721 1992294400 134512640 135197250 4294956240 18446744073709551615 134597699 0 0 4096 0 0 0 0 17 1 0 0
/proc/741/statm: 1013 721 93 167 0 844 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 4052

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

[startup+38.3015 s]
/proc/loadavg: 0.95 0.96 0.93 2/71 742
/proc/meminfo: memFree=1576064/2055920 swapFree=4173984/4192956
[pid=741] ppid=739 vsize=4816 CPUtime=38.28
/proc/741/stat : 741 (march_nn) R 739 741 491 0 -1 4194304 911 0 0 0 3827 1 0 0 25 0 1 0 1101792361 4931584 894 1992294400 134512640 135197250 4294956240 18446744073709551615 134552934 0 0 4096 0 0 0 0 17 1 0 0
/proc/741/statm: 1204 894 93 167 0 1035 0
Current children cumulated CPU time (s) 38.28
Current children cumulated vsize (KiB) 4816

[startup+44.7012 s]
/proc/loadavg: 0.96 0.96 0.93 2/71 742
/proc/meminfo: memFree=1575744/2055920 swapFree=4173984/4192956
[pid=741] ppid=739 vsize=4816 CPUtime=44.68
/proc/741/stat : 741 (march_nn) R 739 741 491 0 -1 4194304 992 0 0 0 4467 1 0 0 25 0 1 0 1101792361 4931584 975 1992294400 134512640 135197250 4294956240 18446744073709551615 134539306 0 0 4096 0 0 0 0 17 1 0 0
/proc/741/statm: 1204 975 93 167 0 1035 0
Current children cumulated CPU time (s) 44.68
Current children cumulated vsize (KiB) 4816

[startup+47.9016 s]
/proc/loadavg: 0.96 0.96 0.93 2/71 742
/proc/meminfo: memFree=1575552/2055920 swapFree=4173984/4192956
[pid=741] ppid=739 vsize=4816 CPUtime=47.88
/proc/741/stat : 741 (march_nn) R 739 741 491 0 -1 4194304 1031 0 0 0 4787 1 0 0 25 0 1 0 1101792361 4931584 1014 1992294400 134512640 135197250 4294956240 18446744073709551615 134552735 0 0 4096 0 0 0 0 17 1 0 0
/proc/741/statm: 1204 1014 93 167 0 1035 0
Current children cumulated CPU time (s) 47.88
Current children cumulated vsize (KiB) 4816

[startup+48.7017 s]
/proc/loadavg: 0.96 0.96 0.93 2/71 742
/proc/meminfo: memFree=1575488/2055920 swapFree=4173984/4192956
[pid=741] ppid=739 vsize=4816 CPUtime=48.68
/proc/741/stat : 741 (march_nn) R 739 741 491 0 -1 4194304 1040 0 0 0 4867 1 0 0 25 0 1 0 1101792361 4931584 1023 1992294400 134512640 135197250 4294956240 18446744073709551615 134548531 0 0 4096 0 0 0 0 17 1 0 0
/proc/741/statm: 1204 1023 93 167 0 1035 0
Current children cumulated CPU time (s) 48.68
Current children cumulated vsize (KiB) 4816

[startup+49.1017 s]
/proc/loadavg: 0.96 0.96 0.93 2/71 742
/proc/meminfo: memFree=1575488/2055920 swapFree=4173984/4192956
[pid=741] ppid=739 vsize=4816 CPUtime=49.08
/proc/741/stat : 741 (march_nn) R 739 741 491 0 -1 4194304 1044 0 0 0 4907 1 0 0 25 0 1 0 1101792361 4931584 1027 1992294400 134512640 135197250 4294956240 18446744073709551615 134541930 0 0 4096 0 0 0 0 17 1 0 0
/proc/741/statm: 1204 1027 93 167 0 1035 0
Current children cumulated CPU time (s) 49.08
Current children cumulated vsize (KiB) 4816

[startup+49.3018 s]
/proc/loadavg: 0.96 0.96 0.93 2/71 742
/proc/meminfo: memFree=1575488/2055920 swapFree=4173984/4192956
[pid=741] ppid=739 vsize=4816 CPUtime=49.27
/proc/741/stat : 741 (march_nn) R 739 741 491 0 -1 4194304 1046 0 0 0 4926 1 0 0 25 0 1 0 1101792361 4931584 1029 1992294400 134512640 135197250 4294956240 18446744073709551615 134603846 0 0 4096 0 0 0 0 17 1 0 0
/proc/741/statm: 1204 1029 93 167 0 1035 0
Current children cumulated CPU time (s) 49.27
Current children cumulated vsize (KiB) 4816

Child status: 20
Real time (s): 49.3573
CPU time (s): 49.3355
CPU user time (s): 49.3215
CPU system time (s): 0.013997
CPU usage (%): 99.9558
Max. virtual memory (cumulated for all children) (KiB): 4816

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 49.3215
system time used= 0.013997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1049
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= 324

runsolver used 0.045993 second user time and 0.160975 second system time

The end

Launcher Data 

Begin job on node74 at 2009-03-29 03:47:53
IDJOB=1517798
IDBENCH=70626
IDSOLVER=522
FILE ID=node74/1517798-1238291273
PBS_JOBID= 9060964
Free space on /tmp= 101912 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/UNKNOWN/380/unif-k3-r4.25-v380-c1615-S999404609-010.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1517798-1238291273/watcher-1517798-1238291273 -o /tmp/evaluation-result-1517798-1238291273/solver-1517798-1238291273 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1517798-1238291273.cnf

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

MD5SUM BENCH= 5929dd8b325f87d1ae10eb412c236ac3
RANDOM SEED=216610831

node74.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		: 3000.236
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		: 3000.236
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:       1579944 kB
Buffers:         66868 kB
Cached:         348884 kB
SwapCached:       7820 kB
Active:         137508 kB
Inactive:       287576 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1579944 kB
SwapTotal:     4192956 kB
SwapFree:      4173984 kB
Dirty:             792 kB
Writeback:           0 kB
Mapped:          14832 kB
Slab:            36080 kB
Committed_AS:  2437472 kB
PageTables:       1852 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 101912 MiB
End job on node74 at 2009-03-29 03:48:42