Trace number 1517822

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 32.588 32.5995

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/UNKNOWN/380/
unif-k3-r4.25-v380-c1615-S1700363952-014.cnf
MD5SUM29b15a76839bb4e367777518dfae2822
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark27.5188
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, 10 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 378 free variables and 1605 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.508
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 171 duplicate clauses
0.00/0.01	c resolvent_look() :: found 99 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 380 variables and 1704 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 1704 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1704 / 380 ) = 4.48
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 = 378
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 |****
c |********
c |****************
c |********************************
c |****************************************************************| ( 0/999) NodeCount: 23
0.00/0.02	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 1/999) NodeCount: 249
0.08/0.09	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 2/999) NodeCount: 1442
0.50/0.50	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 3/999) NodeCount: 5357
2.00/2.05	c |----------------------------------------------------------------|
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c |****************************************************************| ( 4/999) NodeCount: 14271
5.99/6.04	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 5/999) NodeCount: 28374
12.99/13.04	c |----------------------------------------------------------------|
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c |****************************************************************| ( 6/999) NodeCount: 43644
21.39/21.49	c |----------------------------------------------------------------|
c |*
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c |****
c |*****
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c |****************
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c |****************************************************************| ( 7/999) NodeCount: 54717
28.18/28.20	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 8/999) NodeCount: 59890
31.38/31.46	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |*****
c |******
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c |***************
c |****************
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c |************************
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c |********************************
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c |****************************************************************| ( 9/999) NodeCount: 61337
32.38/32.42	c |----------------------------------------------------------------|
c |*
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c |********************************
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c |****************************************************************| (10/999) NodeCount: 61554
32.48/32.58	c |----------------------------------------------------------------|
c |*
c |**
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c |********************************
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c |****************************************************************| (11/999) NodeCount: 61570
32.48/32.59	c |----------------------------------------------------------------|
c |********************************
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c |****************************************************************| (12/999) NodeCount: 61572
32.48/32.59	c |----------------------------------------------------------------|
c |
32.48/32.59	c
32.48/32.59	c main():: nodeCount: 61572
32.48/32.59	c main():: dead ends in main: 1191
32.48/32.59	c main():: lookAheadCount: 4257330
32.48/32.59	c main():: unitResolveCount: 997154
32.48/32.59	c main():: time=32.590000
32.48/32.59	c main():: necessary_assignments: 12777
32.48/32.59	c main():: bin_sat: 0, bin_unsat 0
32.48/32.59	c main():: doublelook: #: 246100, succes #: 178368
32.48/32.59	c main():: doublelook: overall 5.974 of all possible doublelooks executed
32.48/32.59	c main():: doublelook: succesrate: 72.478, average DL_trigger: 48.496
32.48/32.59	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-1517822-1238291582/watcher-1517822-1238291582 -o /tmp/evaluation-result-1517822-1238291582/solver-1517822-1238291582 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1517822-1238291582.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: 1.00 1.00 1.00 3/64 4050
/proc/meminfo: memFree=832448/2055920 swapFree=4181692/4192956
[pid=4050] ppid=4048 vsize=972 CPUtime=0
/proc/4050/stat : 4050 (march_nn) R 4048 4050 3732 0 -1 4194304 138 0 0 0 0 0 0 0 18 0 1 0 273359531 995328 121 1992294400 134512640 135197250 4294956240 18446744073709551615 134535888 0 0 4096 0 0 0 0 17 1 0 0
/proc/4050/statm: 243 121 67 167 0 74 0

[startup+0.0876539 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 4050
/proc/meminfo: memFree=832448/2055920 swapFree=4181692/4192956
[pid=4050] ppid=4048 vsize=1536 CPUtime=0.08
/proc/4050/stat : 4050 (march_nn) R 4048 4050 3732 0 -1 4194304 247 0 0 0 8 0 0 0 18 0 1 0 273359531 1572864 230 1992294400 134512640 135197250 4294956240 18446744073709551615 134525320 0 0 4096 0 0 0 0 17 1 0 0
/proc/4050/statm: 384 230 93 167 0 215 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1536

[startup+0.101656 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 4050
/proc/meminfo: memFree=832448/2055920 swapFree=4181692/4192956
[pid=4050] ppid=4048 vsize=1536 CPUtime=0.1
/proc/4050/stat : 4050 (march_nn) R 4048 4050 3732 0 -1 4194304 248 0 0 0 10 0 0 0 18 0 1 0 273359531 1572864 231 1992294400 134512640 135197250 4294956240 18446744073709551615 134525324 0 0 4096 0 0 0 0 17 1 0 0
/proc/4050/statm: 384 231 93 167 0 215 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1536

[startup+0.301676 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 4050
/proc/meminfo: memFree=832448/2055920 swapFree=4181692/4192956
[pid=4050] ppid=4048 vsize=1676 CPUtime=0.3
/proc/4050/stat : 4050 (march_nn) R 4048 4050 3732 0 -1 4194304 264 0 0 0 30 0 0 0 19 0 1 0 273359531 1716224 247 1992294400 134512640 135197250 4294956240 18446744073709551615 134539323 0 0 4096 0 0 0 0 17 1 0 0
/proc/4050/statm: 419 247 93 167 0 250 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1676

[startup+0.701721 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 4050
/proc/meminfo: memFree=832448/2055920 swapFree=4181692/4192956
[pid=4050] ppid=4048 vsize=1676 CPUtime=0.7
/proc/4050/stat : 4050 (march_nn) R 4048 4050 3732 0 -1 4194304 283 0 0 0 70 0 0 0 22 0 1 0 273359531 1716224 266 1992294400 134512640 135197250 4294956240 18446744073709551615 134594037 0 0 4096 0 0 0 0 17 1 0 0
/proc/4050/statm: 419 266 93 167 0 250 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 1676

[startup+1.50181 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 4051
/proc/meminfo: memFree=831672/2055920 swapFree=4181692/4192956
[pid=4050] ppid=4048 vsize=1812 CPUtime=1.5
/proc/4050/stat : 4050 (march_nn) R 4048 4050 3732 0 -1 4194304 319 0 0 0 150 0 0 0 25 0 1 0 273359531 1855488 302 1992294400 134512640 135197250 4294956240 18446744073709551615 134556431 0 0 4096 0 0 0 0 17 1 0 0
/proc/4050/statm: 453 302 93 167 0 284 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 1812

[startup+3.10299 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 4051
/proc/meminfo: memFree=831416/2055920 swapFree=4181692/4192956
[pid=4050] ppid=4048 vsize=1880 CPUtime=3.1
/proc/4050/stat : 4050 (march_nn) R 4048 4050 3732 0 -1 4194304 341 0 0 0 310 0 0 0 25 0 1 0 273359531 1925120 324 1992294400 134512640 135197250 4294956240 18446744073709551615 134539266 0 0 4096 0 0 0 0 17 1 0 0
/proc/4050/statm: 470 324 93 167 0 301 0
Current children cumulated CPU time (s) 3.1
Current children cumulated vsize (KiB) 1880

[startup+6.30134 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 4051
/proc/meminfo: memFree=831096/2055920 swapFree=4181692/4192956
[pid=4050] ppid=4048 vsize=2324 CPUtime=6.29
/proc/4050/stat : 4050 (march_nn) R 4048 4050 3732 0 -1 4194304 403 0 0 0 629 0 0 0 25 0 1 0 273359531 2379776 386 1992294400 134512640 135197250 4294956240 18446744073709551615 134539274 0 0 4096 0 0 0 0 17 1 0 0
/proc/4050/statm: 581 386 93 167 0 412 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2324

[startup+12.701 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 4051
/proc/meminfo: memFree=830648/2055920 swapFree=4181692/4192956
[pid=4050] ppid=4048 vsize=2552 CPUtime=12.69
/proc/4050/stat : 4050 (march_nn) R 4048 4050 3732 0 -1 4194304 498 0 0 0 1269 0 0 0 25 0 1 0 273359531 2613248 481 1992294400 134512640 135197250 4294956240 18446744073709551615 134539251 0 0 4096 0 0 0 0 17 1 0 0
/proc/4050/statm: 638 481 93 167 0 469 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 2552

[startup+25.5015 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 4051
/proc/meminfo: memFree=829816/2055920 swapFree=4181692/4192956
[pid=4050] ppid=4048 vsize=3648 CPUtime=25.48
/proc/4050/stat : 4050 (march_nn) R 4048 4050 3732 0 -1 4194304 708 0 0 0 2548 0 0 0 25 0 1 0 273359531 3735552 683 1992294400 134512640 135197250 4294956240 18446744073709551615 134542317 0 0 4096 0 0 0 0 17 1 0 0
/proc/4050/statm: 912 683 93 167 0 743 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 3648

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

[startup+28.7028 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 4051
/proc/meminfo: memFree=829624/2055920 swapFree=4181692/4192956
[pid=4050] ppid=4048 vsize=3968 CPUtime=28.68
/proc/4050/stat : 4050 (march_nn) R 4048 4050 3732 0 -1 4194304 744 0 0 0 2868 0 0 0 25 0 1 0 273359531 4063232 719 1992294400 134512640 135197250 4294956240 18446744073709551615 134713071 0 0 4096 0 0 0 0 17 1 0 0
/proc/4050/statm: 992 719 93 167 0 823 0
Current children cumulated CPU time (s) 28.68
Current children cumulated vsize (KiB) 3968

[startup+30.302 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 4051
/proc/meminfo: memFree=829560/2055920 swapFree=4181692/4192956
[pid=4050] ppid=4048 vsize=3968 CPUtime=30.28
/proc/4050/stat : 4050 (march_nn) R 4048 4050 3732 0 -1 4194304 764 0 0 0 3028 0 0 0 25 0 1 0 273359531 4063232 739 1992294400 134512640 135197250 4294956240 18446744073709551615 134525256 0 0 4096 0 0 0 0 17 1 0 0
/proc/4050/statm: 992 739 93 167 0 823 0
Current children cumulated CPU time (s) 30.28
Current children cumulated vsize (KiB) 3968

[startup+31.9052 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 4051
/proc/meminfo: memFree=829496/2055920 swapFree=4181692/4192956
[pid=4050] ppid=4048 vsize=3968 CPUtime=31.88
/proc/4050/stat : 4050 (march_nn) R 4048 4050 3732 0 -1 4194304 781 0 0 0 3188 0 0 0 25 0 1 0 273359531 4063232 756 1992294400 134512640 135197250 4294956240 18446744073709551615 134539266 0 0 4096 0 0 0 0 17 1 0 0
/proc/4050/statm: 992 756 93 167 0 823 0
Current children cumulated CPU time (s) 31.88
Current children cumulated vsize (KiB) 3968

[startup+32.3012 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 4051
/proc/meminfo: memFree=829496/2055920 swapFree=4181692/4192956
[pid=4050] ppid=4048 vsize=3968 CPUtime=32.28
/proc/4050/stat : 4050 (march_nn) R 4048 4050 3732 0 -1 4194304 786 0 0 0 3228 0 0 0 25 0 1 0 273359531 4063232 761 1992294400 134512640 135197250 4294956240 18446744073709551615 134525291 0 0 4096 0 0 0 0 17 1 0 0
/proc/4050/statm: 992 761 93 167 0 823 0
Current children cumulated CPU time (s) 32.28
Current children cumulated vsize (KiB) 3968

[startup+32.5012 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 4051
/proc/meminfo: memFree=829496/2055920 swapFree=4181692/4192956
[pid=4050] ppid=4048 vsize=3968 CPUtime=32.48
/proc/4050/stat : 4050 (march_nn) R 4048 4050 3732 0 -1 4194304 788 0 0 0 3247 1 0 0 25 0 1 0 273359531 4063232 763 1992294400 134512640 135197250 4294956240 18446744073709551615 134542072 0 0 4096 0 0 0 0 17 1 0 0
/proc/4050/statm: 992 763 93 167 0 823 0
Current children cumulated CPU time (s) 32.48
Current children cumulated vsize (KiB) 3968

Child status: 20
Real time (s): 32.5995
CPU time (s): 32.588
CPU user time (s): 32.576
CPU system time (s): 0.011998
CPU usage (%): 99.9649
Max. virtual memory (cumulated for all children) (KiB): 3968

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 32.576
system time used= 0.011998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 791
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= 206

runsolver used 0.038994 second user time and 0.073988 second system time

The end

Launcher Data 

Begin job on node42 at 2009-03-29 03:53:02
IDJOB=1517822
IDBENCH=70628
IDSOLVER=522
FILE ID=node42/1517822-1238291582
PBS_JOBID= 9060950
Free space on /tmp= 66240 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/UNKNOWN/380/unif-k3-r4.25-v380-c1615-S1700363952-014.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1517822-1238291582/watcher-1517822-1238291582 -o /tmp/evaluation-result-1517822-1238291582/solver-1517822-1238291582 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1517822-1238291582.cnf

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

MD5SUM BENCH= 29b15a76839bb4e367777518dfae2822
RANDOM SEED=25019675

node42.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		: 3000.211
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		: 3000.211
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:        832928 kB
Buffers:        101860 kB
Cached:        1022368 kB
SwapCached:       5184 kB
Active:         160772 kB
Inactive:       972016 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        832928 kB
SwapTotal:     4192956 kB
SwapFree:      4181692 kB
Dirty:             800 kB
Writeback:           0 kB
Mapped:          14288 kB
Slab:            76276 kB
Committed_AS:   827220 kB
PageTables:       1388 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= 66240 MiB
End job on node42 at 2009-03-29 03:53:34