Trace number 1737013

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 40.5358 40.5597

General information on the benchmark

NameCRAFTED/parity-games/
instance_n4_i5_pp.cnf
MD5SUMc15885aa7570af76db584f0c4936c8d8
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.280956
Satisfiable
(Un)Satisfiability was proved
Number of variables1960
Number of clauses11270
Sum of the clauses size35662
Maximum clause length12
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22945
Number of clauses of size 34500
Number of clauses of size 42881
Number of clauses of size 5940
Number of clauses of size over 54

Solver Data 

0.19/0.29	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.19/0.29	c main()::  **                Copyright (C) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
0.19/0.29	c main()::   *  This program may be redistributed and/or modified under the terms of the GNU Gereral Public License  *
0.19/0.29	c main()::
0.19/0.29	c initFormula():: searching for DIMACS p-line....
0.19/0.29	c initFormula():: the DIMACS p-line indicates a CNF of 1960 variables and 11270 clauses.
0.19/0.29	c parseCNF():: parsing....
0.19/0.29	c parseCNF():: the CNF contains 0 unary clauses.
0.19/0.29	c runParser():: parsing was successful, warming up engines...
0.19/0.29	c find_and_remove_tautogolies():: found and removed 340 tautologies
0.19/0.29	c find_and_remove_tautogolies():: found and removed 5 tautologies
0.19/0.29	c simplify_formula():: removed 180 tautological, 989 satisfied and 390 duplicate clauses
0.19/0.29	c preprocessing fase I completed:: there are now 1548 free variables and 9711 clauses.
0.19/0.29	c stat :: sign balance is biased by 2.751
0.19/0.29	c find_equivalence():: found 60 3-equivalences
0.19/0.29	c find_and_remove_tautogolies():: found and removed 25 tautologies
0.19/0.29	c find_and_remove_tautogolies():: found and removed 5 tautologies
0.19/0.29	c shorten_equivalence(): average equivalence length reduced from 3.333333 to 3.000000
0.19/0.29	c using k-SAT heuristics (size based diff)
0.19/0.29	c simplify_formula():: removed 0 tautological, 240 satisfied and 0 duplicate clauses
0.19/0.29	c simplify_formula():: removed 0 tautological, 0 satisfied and 18812 duplicate clauses
0.19/0.29	c resolvent_look() :: found 33632 resolvents
0.19/0.29	c main():: clause / variable ratio: ( 43343 / 1960 ) = 22.11
0.19/0.29	c longest clause has size 12
0.19/0.29	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.19/0.29	c number of free variables = 1518
0.19/0.29	c dynamic_preselect_setsize :: off
0.19/0.29	c main():: all systems go!
0.19/0.29	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 0/999) NodeCount: 11
0.59/0.60	c |----------------------------------------------------------------|
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c |****************************************************************| ( 1/999) NodeCount: 119
1.19/1.28	c |----------------------------------------------------------------|
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c |****************************************************************| ( 2/999) NodeCount: 459
4.89/4.91	c |----------------------------------------------------------------|
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c |****************************************************************| ( 3/999) NodeCount: 1116
13.29/13.33	c |----------------------------------------------------------------|
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c |****************************************************************| ( 4/999) NodeCount: 1904
22.68/22.79	c |----------------------------------------------------------------|
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c |****************************************************************| ( 5/999) NodeCount: 2566
30.68/30.79	c |----------------------------------------------------------------|
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c |****************************************************************| ( 6/999) NodeCount: 2967
35.87/35.94	c |----------------------------------------------------------------|
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c |****************************************************************| ( 7/999) NodeCount: 3124
38.27/38.34	c |----------------------------------------------------------------|
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39.27/39.35	c |----------------------------------------------------------------|
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40.07/40.11	c |----------------------------------------------------------------|
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c |****************************************************************| (12/999) NodeCount: 3239
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c |****************************************************************| (13/999) NodeCount: 3241
40.37/40.46	c |----------------------------------------------------------------|
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c |****************************************************************| (14/999) NodeCount: 3241
40.47/40.55	c |----------------------------------------------------------------|
c |
40.47/40.55	c
40.47/40.55	c main():: nodeCount: 3241
40.47/40.55	c main():: dead ends in main: 903
40.47/40.55	c main():: lookAheadCount: 642350
40.47/40.55	c main():: unitResolveCount: 1044896
40.47/40.55	c main():: time=40.530000
40.47/40.55	c main():: necessary_assignments: 23831
40.47/40.55	c main():: bin_sat: 0, bin_unsat 0
40.47/40.55	c main():: doublelook: #: 4794, succes #: 1720
40.47/40.55	c main():: doublelook: overall 0.791 of all possible doublelooks executed
40.47/40.55	c main():: doublelook: succesrate: 35.878, average DL_trigger: 3092.989
40.47/40.55	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-1737013-1240814228/watcher-1737013-1240814228 -o /tmp/evaluation-result-1737013-1240814228/solver-1737013-1240814228 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1737013-1240814228.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: 1.78 1.68 1.35 2/65 12217
/proc/meminfo: memFree=1680536/2055920 swapFree=4192952/4192956
[pid=12217] ppid=12215 vsize=1100 CPUtime=0
/proc/12217/stat : 12217 (march_nn) R 12215 12217 11670 0 -1 4194304 145 0 0 0 0 0 0 0 18 0 1 0 109451930 1126400 130 1992294400 134512640 135197250 4294956224 18446744073709551615 134697286 0 0 4096 0 0 0 0 17 1 0 0
/proc/12217/statm: 275 130 58 167 0 106 0

[startup+0.0385291 s]
/proc/loadavg: 1.78 1.68 1.35 2/65 12217
/proc/meminfo: memFree=1680536/2055920 swapFree=4192952/4192956
[pid=12217] ppid=12215 vsize=2124 CPUtime=0.03
/proc/12217/stat : 12217 (march_nn) R 12215 12217 11670 0 -1 4194304 360 0 0 0 3 0 0 0 18 0 1 0 109451930 2174976 343 1992294400 134512640 135197250 4294956224 18446744073709551615 134695123 0 0 4096 0 0 0 0 17 1 0 0
/proc/12217/statm: 531 343 67 167 0 362 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 2124

[startup+0.101535 s]
/proc/loadavg: 1.78 1.68 1.35 2/65 12217
/proc/meminfo: memFree=1680536/2055920 swapFree=4192952/4192956
[pid=12217] ppid=12215 vsize=2276 CPUtime=0.09
/proc/12217/stat : 12217 (march_nn) R 12215 12217 11670 0 -1 4194304 414 0 0 0 9 0 0 0 18 0 1 0 109451930 2330624 397 1992294400 134512640 135197250 4294956224 18446744073709551615 134539469 0 0 4096 0 0 0 0 17 1 0 0
/proc/12217/statm: 569 397 81 167 0 400 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2276

[startup+0.301557 s]
/proc/loadavg: 1.78 1.68 1.35 2/65 12217
/proc/meminfo: memFree=1680536/2055920 swapFree=4192952/4192956
[pid=12217] ppid=12215 vsize=9616 CPUtime=0.29
/proc/12217/stat : 12217 (march_nn) R 12215 12217 11670 0 -1 4194304 2405 0 0 0 29 0 0 0 19 0 1 0 109451930 9846784 1480 1992294400 134512640 135197250 4294956224 18446744073709551615 134525522 0 0 4096 0 0 0 0 17 1 0 0
/proc/12217/statm: 2404 1480 91 167 0 2235 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9616

[startup+0.701603 s]
/proc/loadavg: 1.78 1.68 1.35 2/65 12217
/proc/meminfo: memFree=1680536/2055920 swapFree=4192952/4192956
[pid=12217] ppid=12215 vsize=9788 CPUtime=0.69
/proc/12217/stat : 12217 (march_nn) R 12215 12217 11670 0 -1 4194304 2597 0 0 0 68 1 0 0 23 0 1 0 109451930 10022912 1672 1992294400 134512640 135197250 4294956224 18446744073709551615 134525509 0 0 4096 0 0 0 0 17 1 0 0
/proc/12217/statm: 2447 1672 93 167 0 2278 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 9788

[startup+1.50169 s]
/proc/loadavg: 1.78 1.68 1.35 2/66 12218
/proc/meminfo: memFree=1674064/2055920 swapFree=4192952/4192956
[pid=12217] ppid=12215 vsize=10184 CPUtime=1.49
/proc/12217/stat : 12217 (march_nn) R 12215 12217 11670 0 -1 4194304 2683 0 0 0 148 1 0 0 25 0 1 0 109451930 10428416 1758 1992294400 134512640 135197250 4294956224 18446744073709551615 134697286 0 0 4096 0 0 0 0 17 1 0 0
/proc/12217/statm: 2546 1758 93 167 0 2377 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 10184

[startup+3.10188 s]
/proc/loadavg: 1.78 1.68 1.35 2/66 12218
/proc/meminfo: memFree=1673488/2055920 swapFree=4192952/4192956
[pid=12217] ppid=12215 vsize=10580 CPUtime=3.09
/proc/12217/stat : 12217 (march_nn) R 12215 12217 11670 0 -1 4194304 2791 0 0 0 308 1 0 0 25 0 1 0 109451930 10833920 1866 1992294400 134512640 135197250 4294956224 18446744073709551615 134553258 0 0 4096 0 0 0 0 17 1 0 0
/proc/12217/statm: 2645 1866 93 167 0 2476 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 10580

[startup+6.30124 s]
/proc/loadavg: 1.71 1.66 1.35 2/66 12218
/proc/meminfo: memFree=1672976/2055920 swapFree=4192952/4192956
[pid=12217] ppid=12215 vsize=10988 CPUtime=6.29
/proc/12217/stat : 12217 (march_nn) R 12215 12217 11670 0 -1 4194304 2901 0 0 0 628 1 0 0 25 0 1 0 109451930 11251712 1975 1992294400 134512640 135197250 4294956224 18446744073709551615 134553225 0 0 4096 0 0 0 0 17 1 0 0
/proc/12217/statm: 2747 1975 93 167 0 2578 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 10988

[startup+12.702 s]
/proc/loadavg: 1.66 1.65 1.35 2/66 12218
/proc/meminfo: memFree=1672400/2055920 swapFree=4192952/4192956
[pid=12217] ppid=12215 vsize=11568 CPUtime=12.69
/proc/12217/stat : 12217 (march_nn) R 12215 12217 11670 0 -1 4194304 3033 0 0 0 1268 1 0 0 25 0 1 0 109451930 11845632 2107 1992294400 134512640 135197250 4294956224 18446744073709551615 134603248 0 0 4096 0 0 0 0 17 1 0 0
/proc/12217/statm: 2892 2107 93 167 0 2723 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 11568

[startup+25.5014 s]
/proc/loadavg: 1.51 1.62 1.35 2/66 12218
/proc/meminfo: memFree=1671632/2055920 swapFree=4192952/4192956
[pid=12217] ppid=12215 vsize=12308 CPUtime=25.48
/proc/12217/stat : 12217 (march_nn) R 12215 12217 11670 0 -1 4194304 3213 0 0 0 2547 1 0 0 25 0 1 0 109451930 12603392 2287 1992294400 134512640 135197250 4294956224 18446744073709551615 134553180 0 0 4096 0 0 0 0 17 1 0 0
/proc/12217/statm: 3077 2287 93 167 0 2908 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 12308

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

[startup+31.9052 s]
/proc/loadavg: 1.47 1.61 1.34 2/66 12218
/proc/meminfo: memFree=1671376/2055920 swapFree=4192952/4192956
[pid=12217] ppid=12215 vsize=13000 CPUtime=31.88
/proc/12217/stat : 12217 (march_nn) R 12215 12217 11670 0 -1 4194304 3266 0 0 0 3187 1 0 0 25 0 1 0 109451930 13312000 2340 1992294400 134512640 135197250 4294956224 18446744073709551615 134553198 0 0 4096 0 0 0 0 17 1 0 0
/proc/12217/statm: 3250 2340 93 167 0 3081 0
Current children cumulated CPU time (s) 31.88
Current children cumulated vsize (KiB) 13000

[startup+35.1015 s]
/proc/loadavg: 1.43 1.60 1.34 2/66 12218
/proc/meminfo: memFree=1671312/2055920 swapFree=4192952/4192956
[pid=12217] ppid=12215 vsize=13000 CPUtime=35.08
/proc/12217/stat : 12217 (march_nn) R 12215 12217 11670 0 -1 4194304 3284 0 0 0 3507 1 0 0 25 0 1 0 109451930 13312000 2358 1992294400 134512640 135197250 4294956224 18446744073709551615 134553209 0 0 4096 0 0 0 0 17 1 0 0
/proc/12217/statm: 3250 2358 93 167 0 3081 0
Current children cumulated CPU time (s) 35.08
Current children cumulated vsize (KiB) 13000

[startup+38.3019 s]
/proc/loadavg: 1.40 1.59 1.34 2/66 12218
/proc/meminfo: memFree=1671312/2055920 swapFree=4192952/4192956
[pid=12217] ppid=12215 vsize=13000 CPUtime=38.27
/proc/12217/stat : 12217 (march_nn) R 12215 12217 11670 0 -1 4194304 3298 0 0 0 3826 1 0 0 25 0 1 0 109451930 13312000 2372 1992294400 134512640 135197250 4294956224 18446744073709551615 134603831 0 0 4096 0 0 0 0 17 1 0 0
/proc/12217/statm: 3250 2372 93 167 0 3081 0
Current children cumulated CPU time (s) 38.27
Current children cumulated vsize (KiB) 13000

[startup+39.9011 s]
/proc/loadavg: 1.40 1.59 1.34 2/66 12218
/proc/meminfo: memFree=1671248/2055920 swapFree=4192952/4192956
[pid=12217] ppid=12215 vsize=13000 CPUtime=39.87
/proc/12217/stat : 12217 (march_nn) R 12215 12217 11670 0 -1 4194304 3300 0 0 0 3985 2 0 0 25 0 1 0 109451930 13312000 2374 1992294400 134512640 135197250 4294956224 18446744073709551615 134603418 0 0 4096 0 0 0 0 17 1 0 0
/proc/12217/statm: 3250 2374 93 167 0 3081 0
Current children cumulated CPU time (s) 39.87
Current children cumulated vsize (KiB) 13000

[startup+40.3011 s]
/proc/loadavg: 1.40 1.59 1.34 2/66 12218
/proc/meminfo: memFree=1671248/2055920 swapFree=4192952/4192956
[pid=12217] ppid=12215 vsize=13000 CPUtime=40.27
/proc/12217/stat : 12217 (march_nn) R 12215 12217 11670 0 -1 4194304 3301 0 0 0 4025 2 0 0 25 0 1 0 109451930 13312000 2375 1992294400 134512640 135197250 4294956224 18446744073709551615 134603206 0 0 4096 0 0 0 0 17 1 0 0
/proc/12217/statm: 3250 2375 93 167 0 3081 0
Current children cumulated CPU time (s) 40.27
Current children cumulated vsize (KiB) 13000

[startup+40.5012 s]
/proc/loadavg: 1.40 1.59 1.34 2/66 12218
/proc/meminfo: memFree=1671248/2055920 swapFree=4192952/4192956
[pid=12217] ppid=12215 vsize=13000 CPUtime=40.47
/proc/12217/stat : 12217 (march_nn) R 12215 12217 11670 0 -1 4194304 3301 0 0 0 4045 2 0 0 25 0 1 0 109451930 13312000 2375 1992294400 134512640 135197250 4294956224 18446744073709551615 134602932 0 0 4096 0 0 0 0 17 1 0 0
/proc/12217/statm: 3250 2375 93 167 0 3081 0
Current children cumulated CPU time (s) 40.47
Current children cumulated vsize (KiB) 13000

Child status: 20
Real time (s): 40.5597
CPU time (s): 40.5358
CPU user time (s): 40.5138
CPU system time (s): 0.021996
CPU usage (%): 99.9411
Max. virtual memory (cumulated for all children) (KiB): 13000

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 40.5138
system time used= 0.021996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3302
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= 243

runsolver used 0.053991 second user time and 0.114982 second system time

The end

Launcher Data 

Begin job on node88 at 2009-04-27 08:37:08
IDJOB=1737013
IDBENCH=71640
IDSOLVER=522
FILE ID=node88/1737013-1240814228
PBS_JOBID= 9187469
Free space on /tmp= 66560 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/CRAFTED/parity-games/instance_n4_i5_pp.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1737013-1240814228/watcher-1737013-1240814228 -o /tmp/evaluation-result-1737013-1240814228/solver-1737013-1240814228 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1737013-1240814228.cnf

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

MD5SUM BENCH= c15885aa7570af76db584f0c4936c8d8
RANDOM SEED=1079800759

node88.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		: 3000.229
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		: 3000.229
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1680952 kB
Buffers:         54364 kB
Cached:         234904 kB
SwapCached:          4 kB
Active:         131248 kB
Inactive:       172344 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1680952 kB
SwapTotal:     4192956 kB
SwapFree:      4192952 kB
Dirty:            1212 kB
Writeback:           0 kB
Mapped:          24048 kB
Slab:            57248 kB
Committed_AS:   311644 kB
PageTables:       1444 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= 66560 MiB
End job on node88 at 2009-04-27 08:37:49