Trace number 1628120

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 55.8485 55.8659

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/UNKNOWN/400/
unif-k3-r4.25-v400-c1700-S387386125-069.cnf
MD5SUMb2823982c36e6ccfe58a4082350a85f9
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark55.8485
Satisfiable
(Un)Satisfiability was proved
Number of variables400
Number of clauses1700
Sum of the clauses size5100
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31700
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 400 variables and 1700 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 400 free variables and 1700 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.465
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 162 duplicate clauses
0.00/0.01	c resolvent_look() :: found 95 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 400 variables and 1795 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 400 variabels and 1795 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1795 / 400 ) = 4.49
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 = 400
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 |****************************************************************| ( 0/14) NodeCount: 160
0.00/0.08	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 1/14) NodeCount: 1672
0.69/0.78	c |----------------------------------------------------------------|
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c |****************************************************************| ( 2/14) NodeCount: 8900
4.09/4.15	c |----------------------------------------------------------------|
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c |****************************************************************| ( 3/14) NodeCount: 25638
11.89/11.91	c |----------------------------------------------------------------|
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c |****************************************************************| ( 4/14) NodeCount: 51307
23.89/23.99	c |----------------------------------------------------------------|
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c |****************************************************************| ( 5/14) NodeCount: 77462
36.48/36.57	c |----------------------------------------------------------------|
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c |****************************************************************| ( 6/14) NodeCount: 96893
46.38/46.48	c |----------------------------------------------------------------|
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c |****************************************************************| ( 7/14) NodeCount: 107686
52.37/52.41	c |----------------------------------------------------------------|
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c |****************************************************************| ( 8/14) NodeCount: 111798
54.87/54.91	c |----------------------------------------------------------------|
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c |****************************************************************| ( 9/14) NodeCount: 112936
55.58/55.67	c |----------------------------------------------------------------|
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c |****************************************************************| (10/14) NodeCount: 113191
55.78/55.83	c |----------------------------------------------------------------|
c |*
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c |************************
c |********************************
c |****************************************************************| (11/14) NodeCount: 113224
55.78/55.86	c |----------------------------------------------------------------|
c |*
c |**
c |****
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c |********************************
c |****************************************************************| (12/14) NodeCount: 113226
55.78/55.86	c |----------------------------------------------------------------|
c |
55.78/55.86	c
55.78/55.86	c main():: nodeCount: 113226
55.78/55.86	c main():: dead ends in main: 2148
55.78/55.86	c main():: lookAheadCount: 7514855
55.78/55.86	c main():: unitResolveCount: 1255860
55.78/55.86	c main():: time=55.850000
55.78/55.86	c main():: necessary_assignments: 24485
55.78/55.86	c main():: bin_sat: 0, bin_unsat 0
55.78/55.86	c main():: doublelook: #: 445696, succes #: 322417
55.78/55.86	c main():: doublelook: overall 6.141 of all possible doublelooks executed
55.78/55.86	c main():: doublelook: succesrate: 72.340, average DL_trigger: 49.340
55.78/55.86	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-1628120-1240116911/watcher-1628120-1240116911 -o /tmp/evaluation-result-1628120-1240116911/solver-1628120-1240116911 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1628120-1240116911.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): 6000 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 25655
/proc/meminfo: memFree=1296392/2055920 swapFree=4192956/4192956
[pid=25655] ppid=25653 vsize=976 CPUtime=0
/proc/25655/stat : 25655 (march_hi) R 25653 25655 25485 0 -1 4194304 136 0 0 0 0 0 0 0 18 0 1 0 39718588 999424 119 1992294400 134512640 135197378 4294956240 18446744073709551615 134722737 0 0 4096 0 0 0 0 17 1 0 0
/proc/25655/statm: 244 119 65 167 0 75 0

[startup+0.101656 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 25655
/proc/meminfo: memFree=1296392/2055920 swapFree=4192956/4192956
[pid=25655] ppid=25653 vsize=1556 CPUtime=0.09
/proc/25655/stat : 25655 (march_hi) R 25653 25655 25485 0 -1 4194304 257 0 0 0 9 0 0 0 18 0 1 0 39718588 1593344 240 1992294400 134512640 135197378 4294956240 18446744073709551615 134539243 0 0 4096 0 0 0 0 17 1 0 0
/proc/25655/statm: 389 240 91 167 0 220 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1556

[startup+0.202665 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 25655
/proc/meminfo: memFree=1296392/2055920 swapFree=4192956/4192956
[pid=25655] ppid=25653 vsize=1688 CPUtime=0.19
/proc/25655/stat : 25655 (march_hi) R 25653 25655 25485 0 -1 4194304 264 0 0 0 19 0 0 0 18 0 1 0 39718588 1728512 247 1992294400 134512640 135197378 4294956240 18446744073709551615 134718686 0 0 4096 0 0 0 0 17 1 0 0
/proc/25655/statm: 422 247 91 167 0 253 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 1688

[startup+0.302673 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 25655
/proc/meminfo: memFree=1296392/2055920 swapFree=4192956/4192956
[pid=25655] ppid=25653 vsize=1688 CPUtime=0.29
/proc/25655/stat : 25655 (march_hi) R 25653 25655 25485 0 -1 4194304 271 0 0 0 29 0 0 0 19 0 1 0 39718588 1728512 254 1992294400 134512640 135197378 4294956240 18446744073709551615 134601582 0 0 4096 0 0 0 0 17 1 0 0
/proc/25655/statm: 422 254 91 167 0 253 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1688

[startup+0.70271 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 25655
/proc/meminfo: memFree=1296392/2055920 swapFree=4192956/4192956
[pid=25655] ppid=25653 vsize=1688 CPUtime=0.69
/proc/25655/stat : 25655 (march_hi) R 25653 25655 25485 0 -1 4194304 280 0 0 0 69 0 0 0 23 0 1 0 39718588 1728512 263 1992294400 134512640 135197378 4294956240 18446744073709551615 134525420 0 0 4096 0 0 0 0 17 1 0 0
/proc/25655/statm: 422 263 91 167 0 253 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1688

[startup+1.50178 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25656
/proc/meminfo: memFree=1295616/2055920 swapFree=4192956/4192956
[pid=25655] ppid=25653 vsize=1688 CPUtime=1.49
/proc/25655/stat : 25655 (march_hi) R 25653 25655 25485 0 -1 4194304 288 0 0 0 149 0 0 0 25 0 1 0 39718588 1728512 271 1992294400 134512640 135197378 4294956240 18446744073709551615 134525322 0 0 4096 0 0 0 0 17 1 0 0
/proc/25655/statm: 422 271 91 167 0 253 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1688

[startup+3.10193 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25656
/proc/meminfo: memFree=1295424/2055920 swapFree=4192956/4192956
[pid=25655] ppid=25653 vsize=1688 CPUtime=3.09
/proc/25655/stat : 25655 (march_hi) R 25653 25655 25485 0 -1 4194304 297 0 0 0 309 0 0 0 25 0 1 0 39718588 1728512 280 1992294400 134512640 135197378 4294956240 18446744073709551615 134542058 0 0 4096 0 0 0 0 17 1 0 0
/proc/25655/statm: 422 280 91 167 0 253 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1688

[startup+6.30121 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25656
/proc/meminfo: memFree=1295296/2055920 swapFree=4192956/4192956
[pid=25655] ppid=25653 vsize=1840 CPUtime=6.29
/proc/25655/stat : 25655 (march_hi) R 25653 25655 25485 0 -1 4194304 304 0 0 0 629 0 0 0 25 0 1 0 39718588 1884160 287 1992294400 134512640 135197378 4294956240 18446744073709551615 134525358 0 0 4096 0 0 0 0 17 1 0 0
/proc/25655/statm: 460 287 91 167 0 291 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1840

[startup+12.7018 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25656
/proc/meminfo: memFree=1295232/2055920 swapFree=4192956/4192956
[pid=25655] ppid=25653 vsize=1840 CPUtime=12.69
/proc/25655/stat : 25655 (march_hi) R 25653 25655 25485 0 -1 4194304 319 0 0 0 1269 0 0 0 25 0 1 0 39718588 1884160 302 1992294400 134512640 135197378 4294956240 18446744073709551615 134525281 0 0 4096 0 0 0 0 17 1 0 0
/proc/25655/statm: 460 302 91 167 0 291 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1840

[startup+25.5019 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25656
/proc/meminfo: memFree=1295040/2055920 swapFree=4192956/4192956
[pid=25655] ppid=25653 vsize=1976 CPUtime=25.49
/proc/25655/stat : 25655 (march_hi) R 25653 25655 25485 0 -1 4194304 363 0 0 0 2549 0 0 0 25 0 1 0 39718588 2023424 346 1992294400 134512640 135197378 4294956240 18446744073709551615 134552753 0 0 4096 0 0 0 0 17 1 0 0
/proc/25655/statm: 494 346 91 167 0 325 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 1976

[startup+51.1012 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25656
/proc/meminfo: memFree=1294720/2055920 swapFree=4192956/4192956
[pid=25655] ppid=25653 vsize=2444 CPUtime=51.07
/proc/25655/stat : 25655 (march_hi) R 25653 25655 25485 0 -1 4194304 439 0 0 0 5107 0 0 0 25 0 1 0 39718588 2502656 422 1992294400 134512640 135197378 4294956240 18446744073709551615 134539253 0 0 4096 0 0 0 0 17 1 0 0
/proc/25655/statm: 611 422 91 167 0 442 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 2444

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

[startup+51.2023 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25656
/proc/meminfo: memFree=1294720/2055920 swapFree=4192956/4192956
[pid=25655] ppid=25653 vsize=2444 CPUtime=51.17
/proc/25655/stat : 25655 (march_hi) R 25653 25655 25485 0 -1 4194304 439 0 0 0 5117 0 0 0 25 0 1 0 39718588 2502656 422 1992294400 134512640 135197378 4294956240 18446744073709551615 134542426 0 0 4096 0 0 0 0 17 1 0 0
/proc/25655/statm: 611 422 91 167 0 442 0
Current children cumulated CPU time (s) 51.17
Current children cumulated vsize (KiB) 2444

[startup+54.4015 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25656
/proc/meminfo: memFree=1294656/2055920 swapFree=4192956/4192956
[pid=25655] ppid=25653 vsize=2672 CPUtime=54.37
/proc/25655/stat : 25655 (march_hi) R 25653 25655 25485 0 -1 4194304 455 0 0 0 5437 0 0 0 25 0 1 0 39718588 2736128 438 1992294400 134512640 135197378 4294956240 18446744073709551615 134525320 0 0 4096 0 0 0 0 17 1 0 0
/proc/25655/statm: 668 438 91 167 0 499 0
Current children cumulated CPU time (s) 54.37
Current children cumulated vsize (KiB) 2672

[startup+55.2016 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25656
/proc/meminfo: memFree=1294592/2055920 swapFree=4192956/4192956
[pid=25655] ppid=25653 vsize=2672 CPUtime=55.17
/proc/25655/stat : 25655 (march_hi) R 25653 25655 25485 0 -1 4194304 460 0 0 0 5517 0 0 0 25 0 1 0 39718588 2736128 443 1992294400 134512640 135197378 4294956240 18446744073709551615 134525420 0 0 4096 0 0 0 0 17 1 0 0
/proc/25655/statm: 668 443 91 167 0 499 0
Current children cumulated CPU time (s) 55.17
Current children cumulated vsize (KiB) 2672

[startup+55.6017 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25656
/proc/meminfo: memFree=1294592/2055920 swapFree=4192956/4192956
[pid=25655] ppid=25653 vsize=2672 CPUtime=55.58
/proc/25655/stat : 25655 (march_hi) R 25653 25655 25485 0 -1 4194304 463 0 0 0 5557 1 0 0 25 0 1 0 39718588 2736128 446 1992294400 134512640 135197378 4294956240 18446744073709551615 134543831 0 0 4096 0 0 0 0 17 1 0 0
/proc/25655/statm: 668 446 91 167 0 499 0
Current children cumulated CPU time (s) 55.58
Current children cumulated vsize (KiB) 2672

[startup+55.8017 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25656
/proc/meminfo: memFree=1294592/2055920 swapFree=4192956/4192956
[pid=25655] ppid=25653 vsize=2672 CPUtime=55.78
/proc/25655/stat : 25655 (march_hi) R 25653 25655 25485 0 -1 4194304 464 0 0 0 5577 1 0 0 25 0 1 0 39718588 2736128 447 1992294400 134512640 135197378 4294956240 18446744073709551615 134525291 0 0 4096 0 0 0 0 17 1 0 0
/proc/25655/statm: 668 447 91 167 0 499 0
Current children cumulated CPU time (s) 55.78
Current children cumulated vsize (KiB) 2672

Child status: 20
Real time (s): 55.8659
CPU time (s): 55.8485
CPU user time (s): 55.8365
CPU system time (s): 0.011998
CPU usage (%): 99.969
Max. virtual memory (cumulated for all children) (KiB): 2672

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 55.8365
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= 467
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= 393

runsolver used 0.044993 second user time and 0.131979 second system time

The end

Launcher Data 

Begin job on node51 at 2009-04-19 06:55:11
IDJOB=1628120
IDBENCH=70576
IDSOLVER=583
FILE ID=node51/1628120-1240116911
PBS_JOBID= 9157754
Free space on /tmp= 66460 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/UNKNOWN/400/unif-k3-r4.25-v400-c1700-S387386125-069.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1628120-1240116911/watcher-1628120-1240116911 -o /tmp/evaluation-result-1628120-1240116911/solver-1628120-1240116911 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1628120-1240116911.cnf

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= b2823982c36e6ccfe58a4082350a85f9
RANDOM SEED=389534411

node51.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	: 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		: 3000.214
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:       1296808 kB
Buffers:         89276 kB
Cached:         571480 kB
SwapCached:          0 kB
Active:         303316 kB
Inactive:       371368 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1296808 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:             792 kB
Writeback:           0 kB
Mapped:          23684 kB
Slab:            70456 kB
Committed_AS:   166756 kB
PageTables:       1392 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= 66460 MiB
End job on node51 at 2009-04-19 06:56:07