Trace number 1517198

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 63.3094 63.3299

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 benchmark52.0701
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 |****************************************************************| ( 0/999) NodeCount: 22
0.00/0.02	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 1/999) NodeCount: 276
0.04/0.09	c |----------------------------------------------------------------|
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c |****************************************************************| ( 2/999) NodeCount: 1775
0.60/0.60	c |----------------------------------------------------------------|
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c |****************************************************************| ( 3/999) NodeCount: 7642
2.79/2.84	c |----------------------------------------------------------------|
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c |****************************************************************| ( 4/999) NodeCount: 22862
9.59/9.66	c |----------------------------------------------------------------|
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c |****************************************************************| ( 5/999) NodeCount: 48586
22.68/22.75	c |----------------------------------------------------------------|
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c |****************************************************************| ( 6/999) NodeCount: 77556
38.88/38.92	c |----------------------------------------------------------------|
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c |****************************************************************| ( 7/999) NodeCount: 99734
52.27/52.38	c |----------------------------------------------------------------|
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c |****************************************************************| ( 8/999) NodeCount: 111303
59.68/59.78	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 9/999) NodeCount: 115368
62.48/62.50	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| (10/999) NodeCount: 116353
63.08/63.18	c |----------------------------------------------------------------|
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c |****************************************************************| (11/999) NodeCount: 116530
63.28/63.31	c |----------------------------------------------------------------|
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c |****************************************************************| (12/999) NodeCount: 116540
63.28/63.32	c |----------------------------------------------------------------|
c |
63.28/63.32	c
63.28/63.32	c main():: nodeCount: 116540
63.28/63.32	c main():: dead ends in main: 2589
63.28/63.32	c main():: lookAheadCount: 7648488
63.28/63.32	c main():: unitResolveCount: 2071998
63.28/63.32	c main():: time=63.310000
63.28/63.32	c main():: necessary_assignments: 27193
63.28/63.32	c main():: bin_sat: 0, bin_unsat 0
63.28/63.32	c main():: doublelook: #: 454606, succes #: 327934
63.28/63.32	c main():: doublelook: overall 6.154 of all possible doublelooks executed
63.28/63.32	c main():: doublelook: succesrate: 72.136, average DL_trigger: 48.984
63.28/63.32	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-1517198-1238281764/watcher-1517198-1238281764 -o /tmp/evaluation-result-1517198-1238281764/solver-1517198-1238281764 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1517198-1238281764.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 0.99 2/64 26563
/proc/meminfo: memFree=889720/2055920 swapFree=4175464/4192956
[pid=26563] ppid=26561 vsize=976 CPUtime=0
/proc/26563/stat : 26563 (march_nn) R 26561 26563 26089 0 -1 4194304 137 0 0 0 0 0 0 0 18 0 1 0 1100841570 999424 120 1992294400 134512640 135197250 4294956240 18446744073709551615 134713095 0 0 4096 0 0 0 0 17 1 0 0
/proc/26563/statm: 244 120 66 167 0 75 0

[startup+0.0507751 s]
/proc/loadavg: 0.92 0.98 0.99 2/64 26563
/proc/meminfo: memFree=889720/2055920 swapFree=4175464/4192956
[pid=26563] ppid=26561 vsize=1556 CPUtime=0.04
/proc/26563/stat : 26563 (march_nn) R 26561 26563 26089 0 -1 4194304 247 0 0 0 4 0 0 0 18 0 1 0 1100841570 1593344 230 1992294400 134512640 135197250 4294956240 18446744073709551615 134556511 0 0 4096 0 0 0 0 17 1 0 0
/proc/26563/statm: 389 230 93 167 0 220 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1556

[startup+0.101782 s]
/proc/loadavg: 0.92 0.98 0.99 2/64 26563
/proc/meminfo: memFree=889720/2055920 swapFree=4175464/4192956
[pid=26563] ppid=26561 vsize=1556 CPUtime=0.1
/proc/26563/stat : 26563 (march_nn) R 26561 26563 26089 0 -1 4194304 259 0 0 0 10 0 0 0 18 0 1 0 1100841570 1593344 242 1992294400 134512640 135197250 4294956240 18446744073709551615 134718558 0 0 4096 0 0 0 0 17 1 0 0
/proc/26563/statm: 389 242 93 167 0 220 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1556

[startup+0.30181 s]
/proc/loadavg: 0.92 0.98 0.99 2/64 26563
/proc/meminfo: memFree=889720/2055920 swapFree=4175464/4192956
[pid=26563] ppid=26561 vsize=1712 CPUtime=0.3
/proc/26563/stat : 26563 (march_nn) R 26561 26563 26089 0 -1 4194304 273 0 0 0 30 0 0 0 19 0 1 0 1100841570 1753088 256 1992294400 134512640 135197250 4294956240 18446744073709551615 134539302 0 0 4096 0 0 0 0 17 1 0 0
/proc/26563/statm: 428 256 93 167 0 259 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1712

[startup+0.701868 s]
/proc/loadavg: 0.92 0.98 0.99 2/64 26563
/proc/meminfo: memFree=889720/2055920 swapFree=4175464/4192956
[pid=26563] ppid=26561 vsize=1712 CPUtime=0.7
/proc/26563/stat : 26563 (march_nn) R 26561 26563 26089 0 -1 4194304 294 0 0 0 70 0 0 0 23 0 1 0 1100841570 1753088 277 1992294400 134512640 135197250 4294956240 18446744073709551615 134541916 0 0 4096 0 0 0 0 17 1 0 0
/proc/26563/statm: 428 277 93 167 0 259 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 1712

[startup+1.50198 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 26564
/proc/meminfo: memFree=888880/2055920 swapFree=4175464/4192956
[pid=26563] ppid=26561 vsize=1848 CPUtime=1.5
/proc/26563/stat : 26563 (march_nn) R 26561 26563 26089 0 -1 4194304 329 0 0 0 150 0 0 0 25 0 1 0 1100841570 1892352 312 1992294400 134512640 135197250 4294956240 18446744073709551615 134617832 0 0 4096 0 0 0 0 17 1 0 0
/proc/26563/statm: 462 312 93 167 0 293 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 1848

[startup+3.10122 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 26564
/proc/meminfo: memFree=888624/2055920 swapFree=4175464/4192956
[pid=26563] ppid=26561 vsize=1916 CPUtime=3.09
/proc/26563/stat : 26563 (march_nn) R 26561 26563 26089 0 -1 4194304 353 0 0 0 309 0 0 0 25 0 1 0 1100841570 1961984 336 1992294400 134512640 135197250 4294956240 18446744073709551615 134552719 0 0 4096 0 0 0 0 17 1 0 0
/proc/26563/statm: 479 336 93 167 0 310 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1916

[startup+6.30168 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 26564
/proc/meminfo: memFree=888368/2055920 swapFree=4175464/4192956
[pid=26563] ppid=26561 vsize=2348 CPUtime=6.29
/proc/26563/stat : 26563 (march_nn) R 26561 26563 26089 0 -1 4194304 411 0 0 0 629 0 0 0 25 0 1 0 1100841570 2404352 394 1992294400 134512640 135197250 4294956240 18446744073709551615 134539249 0 0 4096 0 0 0 0 17 1 0 0
/proc/26563/statm: 587 394 93 167 0 418 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2348

[startup+12.7016 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 26564
/proc/meminfo: memFree=887792/2055920 swapFree=4175464/4192956
[pid=26563] ppid=26561 vsize=2916 CPUtime=12.69
/proc/26563/stat : 26563 (march_nn) R 26561 26563 26089 0 -1 4194304 515 0 0 0 1269 0 0 0 25 0 1 0 1100841570 2985984 498 1992294400 134512640 135197250 4294956240 18446744073709551615 134570813 0 0 4096 0 0 0 0 17 1 0 0
/proc/26563/statm: 729 498 93 167 0 560 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 2916

[startup+25.5015 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 26564
/proc/meminfo: memFree=886832/2055920 swapFree=4175464/4192956
[pid=26563] ppid=26561 vsize=3788 CPUtime=25.48
/proc/26563/stat : 26563 (march_nn) R 26561 26563 26089 0 -1 4194304 749 0 0 0 2548 0 0 0 25 0 1 0 1100841570 3878912 732 1992294400 134512640 135197250 4294956240 18446744073709551615 134525351 0 0 4096 0 0 0 0 17 1 0 0
/proc/26563/statm: 947 732 93 167 0 778 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 3788

[startup+51.1012 s]
/proc/loadavg: 0.96 0.98 0.99 2/65 26564
/proc/meminfo: memFree=885552/2055920 swapFree=4175464/4192956
[pid=26563] ppid=26561 vsize=6064 CPUtime=51.07
/proc/26563/stat : 26563 (march_nn) R 26561 26563 26089 0 -1 4194304 1086 0 0 0 5107 0 0 0 25 0 1 0 1100841570 6209536 1069 1992294400 134512640 135197250 4294956240 18446744073709551615 134525322 0 0 4096 0 0 0 0 17 1 0 0
/proc/26563/statm: 1516 1069 93 167 0 1347 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 6064

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

[startup+57.5011 s]
/proc/loadavg: 0.97 0.98 0.99 2/65 26564
/proc/meminfo: memFree=885232/2055920 swapFree=4175464/4192956
[pid=26563] ppid=26561 vsize=6788 CPUtime=57.47
/proc/26563/stat : 26563 (march_nn) R 26561 26563 26089 0 -1 4194304 1162 0 0 0 5747 0 0 0 25 0 1 0 1100841570 6950912 1145 1992294400 134512640 135197250 4294956240 18446744073709551615 134525272 0 0 4096 0 0 0 0 17 1 0 0
/proc/26563/statm: 1697 1145 93 167 0 1528 0
Current children cumulated CPU time (s) 57.47
Current children cumulated vsize (KiB) 6788

[startup+60.7016 s]
/proc/loadavg: 0.97 0.98 0.99 2/65 26564
/proc/meminfo: memFree=885104/2055920 swapFree=4175464/4192956
[pid=26563] ppid=26561 vsize=6788 CPUtime=60.68
/proc/26563/stat : 26563 (march_nn) R 26561 26563 26089 0 -1 4194304 1198 0 0 0 6067 1 0 0 25 0 1 0 1100841570 6950912 1181 1992294400 134512640 135197250 4294956240 18446744073709551615 134541955 0 0 4096 0 0 0 0 17 1 0 0
/proc/26563/statm: 1697 1181 93 167 0 1528 0
Current children cumulated CPU time (s) 60.68
Current children cumulated vsize (KiB) 6788

[startup+62.3018 s]
/proc/loadavg: 0.97 0.98 0.99 2/65 26564
/proc/meminfo: memFree=885040/2055920 swapFree=4175464/4192956
[pid=26563] ppid=26561 vsize=6788 CPUtime=62.28
/proc/26563/stat : 26563 (march_nn) R 26561 26563 26089 0 -1 4194304 1215 0 0 0 6227 1 0 0 25 0 1 0 1100841570 6950912 1198 1992294400 134512640 135197250 4294956240 18446744073709551615 134597160 0 0 4096 0 0 0 0 17 1 0 0
/proc/26563/statm: 1697 1198 93 167 0 1528 0
Current children cumulated CPU time (s) 62.28
Current children cumulated vsize (KiB) 6788

[startup+63.1019 s]
/proc/loadavg: 0.97 0.98 0.99 2/65 26564
/proc/meminfo: memFree=884976/2055920 swapFree=4175464/4192956
[pid=26563] ppid=26561 vsize=6788 CPUtime=63.08
/proc/26563/stat : 26563 (march_nn) R 26561 26563 26089 0 -1 4194304 1224 0 0 0 6307 1 0 0 25 0 1 0 1100841570 6950912 1207 1992294400 134512640 135197250 4294956240 18446744073709551615 134593749 0 0 4096 0 0 0 0 17 1 0 0
/proc/26563/statm: 1697 1207 93 167 0 1528 0
Current children cumulated CPU time (s) 63.08
Current children cumulated vsize (KiB) 6788

[startup+63.3029 s]
/proc/loadavg: 0.97 0.98 0.99 2/65 26564
/proc/meminfo: memFree=884976/2055920 swapFree=4175464/4192956
[pid=26563] ppid=26561 vsize=6788 CPUtime=63.28
/proc/26563/stat : 26563 (march_nn) R 26561 26563 26089 0 -1 4194304 1226 0 0 0 6327 1 0 0 25 0 1 0 1100841570 6950912 1209 1992294400 134512640 135197250 4294956240 18446744073709551615 134541225 0 0 4096 0 0 0 0 17 1 0 0
/proc/26563/statm: 1697 1209 93 167 0 1528 0
Current children cumulated CPU time (s) 63.28
Current children cumulated vsize (KiB) 6788

Child status: 20
Real time (s): 63.3299
CPU time (s): 63.3094
CPU user time (s): 63.2974
CPU system time (s): 0.011998
CPU usage (%): 99.9675
Max. virtual memory (cumulated for all children) (KiB): 6788

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 63.2974
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= 1228
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= 71

runsolver used 0.057991 second user time and 0.138978 second system time

The end

Launcher Data 

Begin job on node30 at 2009-03-29 00:09:24
IDJOB=1517198
IDBENCH=70576
IDSOLVER=522
FILE ID=node30/1517198-1238281764
PBS_JOBID= 9060841
Free space on /tmp= 66316 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/UNKNOWN/400/unif-k3-r4.25-v400-c1700-S387386125-069.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1517198-1238281764/watcher-1517198-1238281764 -o /tmp/evaluation-result-1517198-1238281764/solver-1517198-1238281764 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1517198-1238281764.cnf

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

MD5SUM BENCH= b2823982c36e6ccfe58a4082350a85f9
RANDOM SEED=442342042

node30.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		: 3000.260
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		: 3000.260
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:        890200 kB
Buffers:         87880 kB
Cached:         988244 kB
SwapCached:      11400 kB
Active:         125256 kB
Inactive:       964296 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        890200 kB
SwapTotal:     4192956 kB
SwapFree:      4175464 kB
Dirty:             792 kB
Writeback:           0 kB
Mapped:          18748 kB
Slab:            62260 kB
Committed_AS:  2989404 kB
PageTables:       1368 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= 66316 MiB
End job on node30 at 2009-03-29 00:10:27