Trace number 1517185

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 57.2563 57.279

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/UNKNOWN/400/
unif-k3-r4.25-v400-c1700-S104085281-076.cnf
MD5SUM5ab9251cccb4c72968393b6f409a56b6
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark57.2563
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, 4 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 399 free variables and 1696 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.486
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 200 duplicate clauses
0.00/0.01	c resolvent_look() :: found 87 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 400 variables and 1783 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 1783 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1783 / 400 ) = 4.46
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 = 399
0.00/0.01	c dynamic_preselect_setsize :: off
0.00/0.01	c main():: all systems go!
0.00/0.01	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 0/14) NodeCount: 219
0.09/0.11	c |----------------------------------------------------------------|
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c |****************************************************************| ( 1/14) NodeCount: 2306
1.00/1.02	c |----------------------------------------------------------------|
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c |****************************************************************| ( 2/14) NodeCount: 10780
4.79/4.86	c |----------------------------------------------------------------|
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c |****************************************************************| ( 3/14) NodeCount: 29325
13.19/13.25	c |----------------------------------------------------------------|
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c |****************************************************************| ( 4/14) NodeCount: 57393
26.09/26.19	c |----------------------------------------------------------------|
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c |****************************************************************| ( 5/14) NodeCount: 84960
39.08/39.12	c |----------------------------------------------------------------|
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c |****************************************************************| ( 6/14) NodeCount: 105541
49.17/49.22	c |----------------------------------------------------------------|
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c |****************************************************************| ( 7/14) NodeCount: 115687
54.57/54.61	c |----------------------------------------------------------------|
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c |****************************************************************| ( 8/14) NodeCount: 119069
56.57/56.63	c |----------------------------------------------------------------|
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c |****************************************************************| ( 9/14) NodeCount: 119868
57.07/57.14	c |----------------------------------------------------------------|
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c |****************************************************************| (10/14) NodeCount: 120033
57.17/57.25	c |----------------------------------------------------------------|
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c |****************************************************************| (11/14) NodeCount: 120063
57.17/57.27	c |----------------------------------------------------------------|
c |********************************
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c |****************************************************************| (12/14) NodeCount: 120068
57.17/57.27	c |----------------------------------------------------------------|
c |
57.17/57.27	c
57.17/57.27	c main():: nodeCount: 120068
57.17/57.27	c main():: dead ends in main: 1789
57.17/57.27	c main():: lookAheadCount: 7880626
57.17/57.27	c main():: unitResolveCount: 1213636
57.17/57.27	c main():: time=57.250000
57.17/57.27	c main():: necessary_assignments: 22082
57.17/57.27	c main():: bin_sat: 0, bin_unsat 0
57.17/57.27	c main():: doublelook: #: 475052, succes #: 344426
57.17/57.27	c main():: doublelook: overall 6.239 of all possible doublelooks executed
57.17/57.27	c main():: doublelook: succesrate: 72.503, average DL_trigger: 50.276
57.17/57.27	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-1517185-1238281620/watcher-1517185-1238281620 -o /tmp/evaluation-result-1517185-1238281620/solver-1517185-1238281620 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1517185-1238281620.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 0.97 0.99 3/64 13702
/proc/meminfo: memFree=750800/2055920 swapFree=4167280/4192956
[pid=13702] ppid=13700 vsize=976 CPUtime=0
/proc/13702/stat : 13702 (march_hi) R 13700 13702 13254 0 -1 4194304 136 0 0 0 0 0 0 0 18 0 1 0 1100827544 999424 119 1992294400 134512640 135197378 4294956240 18446744073709551615 134565174 0 0 4096 0 0 0 0 17 1 0 0
/proc/13702/statm: 244 119 65 167 0 75 0

[startup+0.086117 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 13702
/proc/meminfo: memFree=750800/2055920 swapFree=4167280/4192956
[pid=13702] ppid=13700 vsize=1556 CPUtime=0.08
/proc/13702/stat : 13702 (march_hi) R 13700 13702 13254 0 -1 4194304 253 0 0 0 8 0 0 0 18 0 1 0 1100827544 1593344 236 1992294400 134512640 135197378 4294956240 18446744073709551615 134542433 0 0 4096 0 0 0 0 17 1 0 0
/proc/13702/statm: 389 236 91 167 0 220 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1556

[startup+0.101118 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 13702
/proc/meminfo: memFree=750800/2055920 swapFree=4167280/4192956
[pid=13702] ppid=13700 vsize=1556 CPUtime=0.09
/proc/13702/stat : 13702 (march_hi) R 13700 13702 13254 0 -1 4194304 254 0 0 0 9 0 0 0 18 0 1 0 1100827544 1593344 237 1992294400 134512640 135197378 4294956240 18446744073709551615 134596885 0 0 4096 0 0 0 0 17 1 0 0
/proc/13702/statm: 389 237 91 167 0 220 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1556

[startup+0.301135 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 13702
/proc/meminfo: memFree=750800/2055920 swapFree=4167280/4192956
[pid=13702] ppid=13700 vsize=1688 CPUtime=0.29
/proc/13702/stat : 13702 (march_hi) R 13700 13702 13254 0 -1 4194304 265 0 0 0 29 0 0 0 19 0 1 0 1100827544 1728512 248 1992294400 134512640 135197378 4294956240 18446744073709551615 134593937 0 0 4096 0 0 0 0 17 1 0 0
/proc/13702/statm: 422 248 91 167 0 253 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1688

[startup+0.701169 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 13702
/proc/meminfo: memFree=750800/2055920 swapFree=4167280/4192956
[pid=13702] ppid=13700 vsize=1688 CPUtime=0.69
/proc/13702/stat : 13702 (march_hi) R 13700 13702 13254 0 -1 4194304 274 0 0 0 69 0 0 0 22 0 1 0 1100827544 1728512 257 1992294400 134512640 135197378 4294956240 18446744073709551615 134539276 0 0 4096 0 0 0 0 17 1 0 0
/proc/13702/statm: 422 257 91 167 0 253 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1688

[startup+1.50124 s]
/proc/loadavg: 0.91 0.97 0.99 2/65 13703
/proc/meminfo: memFree=750024/2055920 swapFree=4167280/4192956
[pid=13702] ppid=13700 vsize=1688 CPUtime=1.49
/proc/13702/stat : 13702 (march_hi) R 13700 13702 13254 0 -1 4194304 283 0 0 0 149 0 0 0 25 0 1 0 1100827544 1728512 266 1992294400 134512640 135197378 4294956240 18446744073709551615 134525291 0 0 4096 0 0 0 0 17 1 0 0
/proc/13702/statm: 422 266 91 167 0 253 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1688

[startup+3.10138 s]
/proc/loadavg: 0.91 0.97 0.99 2/65 13703
/proc/meminfo: memFree=749896/2055920 swapFree=4167280/4192956
[pid=13702] ppid=13700 vsize=1688 CPUtime=3.09
/proc/13702/stat : 13702 (march_hi) R 13700 13702 13254 0 -1 4194304 292 0 0 0 309 0 0 0 25 0 1 0 1100827544 1728512 275 1992294400 134512640 135197378 4294956240 18446744073709551615 134539158 0 0 4096 0 0 0 0 17 1 0 0
/proc/13702/statm: 422 275 91 167 0 253 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1688

[startup+6.30165 s]
/proc/loadavg: 0.92 0.97 0.99 2/65 13703
/proc/meminfo: memFree=749768/2055920 swapFree=4167280/4192956
[pid=13702] ppid=13700 vsize=1832 CPUtime=6.29
/proc/13702/stat : 13702 (march_hi) R 13700 13702 13254 0 -1 4194304 301 0 0 0 629 0 0 0 25 0 1 0 1100827544 1875968 284 1992294400 134512640 135197378 4294956240 18446744073709551615 134525315 0 0 4096 0 0 0 0 17 1 0 0
/proc/13702/statm: 458 284 91 167 0 289 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1832

[startup+12.7012 s]
/proc/loadavg: 0.93 0.97 0.99 2/65 13703
/proc/meminfo: memFree=749640/2055920 swapFree=4167280/4192956
[pid=13702] ppid=13700 vsize=1832 CPUtime=12.69
/proc/13702/stat : 13702 (march_hi) R 13700 13702 13254 0 -1 4194304 319 0 0 0 1269 0 0 0 25 0 1 0 1100827544 1875968 302 1992294400 134512640 135197378 4294956240 18446744073709551615 134603846 0 0 4096 0 0 0 0 17 1 0 0
/proc/13702/statm: 458 302 91 167 0 289 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1832

[startup+25.5013 s]
/proc/loadavg: 0.94 0.97 0.99 2/65 13703
/proc/meminfo: memFree=749448/2055920 swapFree=4167280/4192956
[pid=13702] ppid=13700 vsize=1968 CPUtime=25.49
/proc/13702/stat : 13702 (march_hi) R 13700 13702 13254 0 -1 4194304 358 0 0 0 2549 0 0 0 25 0 1 0 1100827544 2015232 341 1992294400 134512640 135197378 4294956240 18446744073709551615 134552490 0 0 4096 0 0 0 0 17 1 0 0
/proc/13702/statm: 492 341 91 167 0 323 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 1968

[startup+51.1015 s]
/proc/loadavg: 0.96 0.97 0.99 2/65 13703
/proc/meminfo: memFree=749192/2055920 swapFree=4167280/4192956
[pid=13702] ppid=13700 vsize=2288 CPUtime=51.07
/proc/13702/stat : 13702 (march_hi) R 13700 13702 13254 0 -1 4194304 422 0 0 0 5107 0 0 0 25 0 1 0 1100827544 2342912 405 1992294400 134512640 135197378 4294956240 18446744073709551615 134542220 0 0 4096 0 0 0 0 17 1 0 0
/proc/13702/statm: 572 405 91 167 0 403 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 2288

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

[startup+54.3018 s]
/proc/loadavg: 0.96 0.97 0.99 2/65 13703
/proc/meminfo: memFree=749128/2055920 swapFree=4167280/4192956
[pid=13702] ppid=13700 vsize=2288 CPUtime=54.27
/proc/13702/stat : 13702 (march_hi) R 13700 13702 13254 0 -1 4194304 434 0 0 0 5427 0 0 0 25 0 1 0 1100827544 2342912 417 1992294400 134512640 135197378 4294956240 18446744073709551615 134525320 0 0 4096 0 0 0 0 17 1 0 0
/proc/13702/statm: 572 417 91 167 0 403 0
Current children cumulated CPU time (s) 54.27
Current children cumulated vsize (KiB) 2288

[startup+55.9019 s]
/proc/loadavg: 0.96 0.97 0.99 2/65 13703
/proc/meminfo: memFree=749128/2055920 swapFree=4167280/4192956
[pid=13702] ppid=13700 vsize=2288 CPUtime=55.87
/proc/13702/stat : 13702 (march_hi) R 13700 13702 13254 0 -1 4194304 440 0 0 0 5587 0 0 0 25 0 1 0 1100827544 2342912 423 1992294400 134512640 135197378 4294956240 18446744073709551615 134525420 0 0 4096 0 0 0 0 17 1 0 0
/proc/13702/statm: 572 423 91 167 0 403 0
Current children cumulated CPU time (s) 55.87
Current children cumulated vsize (KiB) 2288

[startup+56.702 s]
/proc/loadavg: 0.96 0.97 0.99 2/65 13703
/proc/meminfo: memFree=749128/2055920 swapFree=4167280/4192956
[pid=13702] ppid=13700 vsize=2516 CPUtime=56.67
/proc/13702/stat : 13702 (march_hi) R 13700 13702 13254 0 -1 4194304 444 0 0 0 5667 0 0 0 25 0 1 0 1100827544 2576384 427 1992294400 134512640 135197378 4294956240 18446744073709551615 134541960 0 0 4096 0 0 0 0 17 1 0 0
/proc/13702/statm: 629 427 91 167 0 460 0
Current children cumulated CPU time (s) 56.67
Current children cumulated vsize (KiB) 2516

[startup+57.101 s]
/proc/loadavg: 0.96 0.97 0.99 2/65 13703
/proc/meminfo: memFree=749064/2055920 swapFree=4167280/4192956
[pid=13702] ppid=13700 vsize=2516 CPUtime=57.07
/proc/13702/stat : 13702 (march_hi) R 13700 13702 13254 0 -1 4194304 446 0 0 0 5707 0 0 0 25 0 1 0 1100827544 2576384 429 1992294400 134512640 135197378 4294956240 18446744073709551615 134542433 0 0 4096 0 0 0 0 17 1 0 0
/proc/13702/statm: 629 429 91 167 0 460 0
Current children cumulated CPU time (s) 57.07
Current children cumulated vsize (KiB) 2516

[startup+57.205 s]
/proc/loadavg: 0.96 0.97 0.99 2/65 13703
/proc/meminfo: memFree=749064/2055920 swapFree=4167280/4192956
[pid=13702] ppid=13700 vsize=2516 CPUtime=57.17
/proc/13702/stat : 13702 (march_hi) R 13700 13702 13254 0 -1 4194304 447 0 0 0 5717 0 0 0 25 0 1 0 1100827544 2576384 430 1992294400 134512640 135197378 4294956240 18446744073709551615 134539240 0 0 4096 0 0 0 0 17 1 0 0
/proc/13702/statm: 629 430 91 167 0 460 0
Current children cumulated CPU time (s) 57.17
Current children cumulated vsize (KiB) 2516

Child status: 20
Real time (s): 57.279
CPU time (s): 57.2563
CPU user time (s): 57.2513
CPU system time (s): 0.004999
CPU usage (%): 99.9604
Max. virtual memory (cumulated for all children) (KiB): 2516

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 57.2513
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 450
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= 407

runsolver used 0.048992 second user time and 0.131979 second system time

The end

Launcher Data 

Begin job on node31 at 2009-03-29 00:07:00
IDJOB=1517185
IDBENCH=70575
IDSOLVER=521
FILE ID=node31/1517185-1238281620
PBS_JOBID= 9060839
Free space on /tmp= 66360 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/UNKNOWN/400/unif-k3-r4.25-v400-c1700-S104085281-076.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1517185-1238281620/watcher-1517185-1238281620 -o /tmp/evaluation-result-1517185-1238281620/solver-1517185-1238281620 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1517185-1238281620.cnf

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

MD5SUM BENCH= 5ab9251cccb4c72968393b6f409a56b6
RANDOM SEED=650266164

node31.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:        751216 kB
Buffers:        109268 kB
Cached:        1076144 kB
SwapCached:      18664 kB
Active:         187368 kB
Inactive:      1018276 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        751216 kB
SwapTotal:     4192956 kB
SwapFree:      4167280 kB
Dirty:             800 kB
Writeback:           0 kB
Mapped:          17372 kB
Slab:            84752 kB
Committed_AS:  2935044 kB
PageTables:       1472 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= 66360 MiB
End job on node31 at 2009-03-29 00:07:57