Trace number 1517306

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 222.527 222.613

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/UNKNOWN/440/
unif-k3-r4.25-v440-c1870-S393462637-097.cnf
MD5SUM7bb141e5170278fe5236c7e91edc07cf
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark204.833
Satisfiable
(Un)Satisfiability was proved
Number of variables440
Number of clauses1870
Sum of the clauses size5610
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31870
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.02	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.02	c main()::  **                Copyright (C) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
0.00/0.02	c main()::   *  This program may be redistributed and/or modified under the terms of the GNU Gereral Public License  *
0.00/0.02	c main()::
0.00/0.02	c initFormula():: searching for DIMACS p-line....
0.00/0.02	c initFormula():: the DIMACS p-line indicates a CNF of 440 variables and 1870 clauses.
0.00/0.02	c parseCNF():: parsing....
0.00/0.02	c parseCNF():: the CNF contains 0 unary clauses.
0.00/0.02	c runParser():: parsing was successful, warming up engines...
0.00/0.02	c simplify_formula():: removed 0 tautological, 10 satisfied and 0 duplicate clauses
0.00/0.02	c preprocessing fase I completed:: there are now 438 free variables and 1860 clauses.
0.00/0.02	c stat :: sign balance is biased by 0.410
0.00/0.02	c using 3-SAT heuristics (occurence based diff)
0.00/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 158 duplicate clauses
0.00/0.02	c resolvent_look() :: found 76 resolvents
0.00/0.02	c lessRedundantTransformation():: nothing to be done.
0.00/0.02	c transformTo3SAT():: you gave me 440 variables and 1936 clauses.
0.00/0.02	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.00/0.02	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.00/0.02	c transformTo3SAT():: the transformation yielded 440 variabels and 1936 clauses.
0.00/0.02	c main():: clause / variable ratio: ( 1936 / 440 ) = 4.40
0.00/0.02	c longest clause has size 3
0.00/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.02	c number of free variables = 438
0.00/0.02	c dynamic_preselect_setsize :: off
0.00/0.02	c main():: all systems go!
0.00/0.02	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 0/999) NodeCount: 28
0.00/0.02	c |----------------------------------------------------------------|
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c |****************************************************************| ( 1/999) NodeCount: 376
0.10/0.12	c |----------------------------------------------------------------|
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c |****************************************************************| ( 2/999) NodeCount: 2610
0.80/0.85	c |----------------------------------------------------------------|
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c |****************************************************************| ( 3/999) NodeCount: 12089
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c |****************************************************************| ( 4/999) NodeCount: 39987
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c |****************************************************************| ( 5/999) NodeCount: 98055
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c |****************************************************************| ( 6/999) NodeCount: 184629
90.97/91.07	c |----------------------------------------------------------------|
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c |****************************************************************| ( 7/999) NodeCount: 276357
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c |****************************************************************| ( 8/999) NodeCount: 345060
187.63/187.74	c |----------------------------------------------------------------|
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c |****************************************************************| ( 9/999) NodeCount: 381166
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c |****************************************************************| (10/999) NodeCount: 393746
220.31/220.47	c |----------------------------------------------------------------|
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c |****************************************************************| (11/999) NodeCount: 396341
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c |****************************************************************| (12/999) NodeCount: 396612
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c |****************************************************************| (13/999) NodeCount: 396623
222.51/222.61	c |----------------------------------------------------------------|
c |
222.51/222.61	c
222.51/222.61	c main():: nodeCount: 396623
222.51/222.61	c main():: dead ends in main: 5298
222.51/222.61	c main():: lookAheadCount: 25017706
222.51/222.61	c main():: unitResolveCount: 6620358
222.51/222.61	c main():: time=222.550000
222.51/222.61	c main():: necessary_assignments: 78445
222.51/222.61	c main():: bin_sat: 0, bin_unsat 0
222.51/222.61	c main():: doublelook: #: 1557901, succes #: 1124347
222.51/222.61	c main():: doublelook: overall 6.445 of all possible doublelooks executed
222.51/222.61	c main():: doublelook: succesrate: 72.171, average DL_trigger: 52.117
222.51/222.61	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-1517306-1238283448/watcher-1517306-1238283448 -o /tmp/evaluation-result-1517306-1238283448/solver-1517306-1238283448 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1517306-1238283448.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 0.95 0.90 3/65 21568
/proc/meminfo: memFree=1432368/2055920 swapFree=4178736/4192956
[pid=21568] ppid=21566 vsize=976 CPUtime=0
/proc/21568/stat : 21568 (march_nn) R 21566 21568 21531 0 -1 4194304 142 0 0 0 0 0 0 0 18 0 1 0 454678657 999424 125 1992294400 134512640 135197250 4294956240 18446744073709551615 134565248 0 0 4096 0 0 0 0 17 1 0 0
/proc/21568/statm: 244 125 66 167 0 75 0

[startup+0.043485 s]
/proc/loadavg: 0.91 0.95 0.90 3/65 21568
/proc/meminfo: memFree=1432368/2055920 swapFree=4178736/4192956
[pid=21568] ppid=21566 vsize=1656 CPUtime=0.04
/proc/21568/stat : 21568 (march_nn) R 21566 21568 21531 0 -1 4194304 260 0 0 0 4 0 0 0 18 0 1 0 454678657 1695744 243 1992294400 134512640 135197250 4294956240 18446744073709551615 134697286 0 0 4096 0 0 0 0 17 1 0 0
/proc/21568/statm: 414 243 93 167 0 245 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1656

[startup+0.101491 s]
/proc/loadavg: 0.91 0.95 0.90 3/65 21568
/proc/meminfo: memFree=1432368/2055920 swapFree=4178736/4192956
[pid=21568] ppid=21566 vsize=1656 CPUtime=0.1
/proc/21568/stat : 21568 (march_nn) R 21566 21568 21531 0 -1 4194304 269 0 0 0 10 0 0 0 18 0 1 0 454678657 1695744 252 1992294400 134512640 135197250 4294956240 18446744073709551615 134552631 0 0 4096 0 0 0 0 17 1 0 0
/proc/21568/statm: 414 252 93 167 0 245 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1656

[startup+0.301528 s]
/proc/loadavg: 0.91 0.95 0.90 3/65 21568
/proc/meminfo: memFree=1432368/2055920 swapFree=4178736/4192956
[pid=21568] ppid=21566 vsize=1656 CPUtime=0.3
/proc/21568/stat : 21568 (march_nn) R 21566 21568 21531 0 -1 4194304 285 0 0 0 30 0 0 0 19 0 1 0 454678657 1695744 268 1992294400 134512640 135197250 4294956240 18446744073709551615 134541973 0 0 4096 0 0 0 0 17 1 0 0
/proc/21568/statm: 414 268 93 167 0 245 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1656

[startup+0.701559 s]
/proc/loadavg: 0.91 0.95 0.90 3/65 21568
/proc/meminfo: memFree=1432368/2055920 swapFree=4178736/4192956
[pid=21568] ppid=21566 vsize=1792 CPUtime=0.7
/proc/21568/stat : 21568 (march_nn) R 21566 21568 21531 0 -1 4194304 306 0 0 0 70 0 0 0 22 0 1 0 454678657 1835008 289 1992294400 134512640 135197250 4294956240 18446744073709551615 134552408 0 0 4096 0 0 0 0 17 1 0 0
/proc/21568/statm: 448 289 93 167 0 279 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 1792

[startup+1.50165 s]
/proc/loadavg: 0.92 0.95 0.90 2/66 21569
/proc/meminfo: memFree=1431464/2055920 swapFree=4178736/4192956
[pid=21568] ppid=21566 vsize=1928 CPUtime=1.49
/proc/21568/stat : 21568 (march_nn) R 21566 21568 21531 0 -1 4194304 346 0 0 0 149 0 0 0 25 0 1 0 454678657 1974272 329 1992294400 134512640 135197250 4294956240 18446744073709551615 134539266 0 0 4096 0 0 0 0 17 1 0 0
/proc/21568/statm: 482 329 93 167 0 313 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1928

[startup+3.10183 s]
/proc/loadavg: 0.92 0.95 0.90 2/66 21569
/proc/meminfo: memFree=1431208/2055920 swapFree=4178736/4192956
[pid=21568] ppid=21566 vsize=2096 CPUtime=3.09
/proc/21568/stat : 21568 (march_nn) R 21566 21568 21531 0 -1 4194304 373 0 0 0 309 0 0 0 25 0 1 0 454678657 2146304 356 1992294400 134512640 135197250 4294956240 18446744073709551615 134525358 0 0 4096 0 0 0 0 17 1 0 0
/proc/21568/statm: 524 356 93 167 0 355 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2096

[startup+6.30119 s]
/proc/loadavg: 0.92 0.95 0.90 2/66 21569
/proc/meminfo: memFree=1430960/2055920 swapFree=4178736/4192956
[pid=21568] ppid=21566 vsize=2444 CPUtime=6.29
/proc/21568/stat : 21568 (march_nn) R 21566 21568 21531 0 -1 4194304 429 0 0 0 629 0 0 0 25 0 1 0 454678657 2502656 412 1992294400 134512640 135197250 4294956240 18446744073709551615 134539261 0 0 4096 0 0 0 0 17 1 0 0
/proc/21568/statm: 611 412 93 167 0 442 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2444

[startup+12.7019 s]
/proc/loadavg: 0.93 0.96 0.91 2/66 21569
/proc/meminfo: memFree=1430384/2055920 swapFree=4178736/4192956
[pid=21568] ppid=21566 vsize=3012 CPUtime=12.69
/proc/21568/stat : 21568 (march_nn) R 21566 21568 21531 0 -1 4194304 536 0 0 0 1269 0 0 0 25 0 1 0 454678657 3084288 519 1992294400 134512640 135197250 4294956240 18446744073709551615 134552743 0 0 4096 0 0 0 0 17 1 0 0
/proc/21568/statm: 753 519 93 167 0 584 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 3012

[startup+25.5014 s]
/proc/loadavg: 0.94 0.96 0.91 2/66 21569
/proc/meminfo: memFree=1429360/2055920 swapFree=4178736/4192956
[pid=21568] ppid=21566 vsize=3916 CPUtime=25.48
/proc/21568/stat : 21568 (march_nn) R 21566 21568 21531 0 -1 4194304 783 0 0 0 2548 0 0 0 25 0 1 0 454678657 4009984 766 1992294400 134512640 135197250 4294956240 18446744073709551615 134525324 0 0 4096 0 0 0 0 17 1 0 0
/proc/21568/statm: 979 766 93 167 0 810 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 3916

[startup+51.1013 s]
/proc/loadavg: 0.96 0.96 0.91 2/66 21569
/proc/meminfo: memFree=1427888/2055920 swapFree=4178736/4192956
[pid=21568] ppid=21566 vsize=6220 CPUtime=51.08
/proc/21568/stat : 21568 (march_nn) R 21566 21568 21531 0 -1 4194304 1150 0 0 0 5107 1 0 0 25 0 1 0 454678657 6369280 1133 1992294400 134512640 135197250 4294956240 18446744073709551615 134539266 0 0 4096 0 0 0 0 17 1 0 0
/proc/21568/statm: 1555 1133 93 167 0 1386 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 6220

[startup+102.305 s]
/proc/loadavg: 0.98 0.96 0.91 2/66 21569
/proc/meminfo: memFree=1425072/2055920 swapFree=4178736/4192956
[pid=21568] ppid=21566 vsize=8728 CPUtime=102.27
/proc/21568/stat : 21568 (march_nn) R 21566 21568 21531 0 -1 4194304 1835 0 0 0 10225 2 0 0 25 0 1 0 454678657 8937472 1818 1992294400 134512640 135197250 4294956240 18446744073709551615 134525324 0 0 4096 0 0 0 0 17 1 0 0
/proc/21568/statm: 2182 1818 93 167 0 2013 0
Current children cumulated CPU time (s) 102.27
Current children cumulated vsize (KiB) 8728

[startup+162.302 s]
/proc/loadavg: 0.99 0.97 0.91 2/66 21569
/proc/meminfo: memFree=1422192/2055920 swapFree=4178736/4192956
[pid=21568] ppid=21566 vsize=12880 CPUtime=162.23
/proc/21568/stat : 21568 (march_nn) R 21566 21568 21531 0 -1 4194304 2566 0 0 0 16221 2 0 0 25 0 1 0 454678657 13189120 2549 1992294400 134512640 135197250 4294956240 18446744073709551615 134597453 0 0 4096 0 0 0 0 17 1 0 0
/proc/21568/statm: 3220 2549 93 167 0 3051 0
Current children cumulated CPU time (s) 162.23
Current children cumulated vsize (KiB) 12880

[startup+222.302 s]
/proc/loadavg: 0.99 0.97 0.91 2/66 21569
/proc/meminfo: memFree=1419504/2055920 swapFree=4178736/4192956
[pid=21568] ppid=21566 vsize=16760 CPUtime=222.21
/proc/21568/stat : 21568 (march_nn) R 21566 21568 21531 0 -1 4194304 3223 0 0 0 22218 3 0 0 25 0 1 0 454678657 17162240 3206 1992294400 134512640 135197250 4294956240 18446744073709551615 134553002 0 0 4096 0 0 0 0 17 1 0 0
/proc/21568/statm: 4190 3206 93 167 0 4021 0
Current children cumulated CPU time (s) 222.21
Current children cumulated vsize (KiB) 16760

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

[startup+222.502 s]
/proc/loadavg: 0.99 0.97 0.91 2/66 21569
/proc/meminfo: memFree=1419504/2055920 swapFree=4178736/4192956
[pid=21568] ppid=21566 vsize=16760 CPUtime=222.41
/proc/21568/stat : 21568 (march_nn) R 21566 21568 21531 0 -1 4194304 3225 0 0 0 22238 3 0 0 25 0 1 0 454678657 17162240 3208 1992294400 134512640 135197250 4294956240 18446744073709551615 134542043 0 0 4096 0 0 0 0 17 1 0 0
/proc/21568/statm: 4190 3208 93 167 0 4021 0
Current children cumulated CPU time (s) 222.41
Current children cumulated vsize (KiB) 16760

[startup+222.602 s]
/proc/loadavg: 0.99 0.97 0.91 2/66 21569
/proc/meminfo: memFree=1419504/2055920 swapFree=4178736/4192956
[pid=21568] ppid=21566 vsize=16760 CPUtime=222.51
/proc/21568/stat : 21568 (march_nn) R 21566 21568 21531 0 -1 4194304 3226 0 0 0 22248 3 0 0 25 0 1 0 454678657 17162240 3209 1992294400 134512640 135197250 4294956240 18446744073709551615 134525272 0 0 4096 0 0 0 0 17 1 0 0
/proc/21568/statm: 4190 3209 93 167 0 4021 0
Current children cumulated CPU time (s) 222.51
Current children cumulated vsize (KiB) 16760

Child status: 20
Real time (s): 222.613
CPU time (s): 222.527
CPU user time (s): 222.488
CPU system time (s): 0.038994
CPU usage (%): 99.9615
Max. virtual memory (cumulated for all children) (KiB): 16760

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 222.488
system time used= 0.038994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3228
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= 813

runsolver used 0.285956 second user time and 0.468928 second system time

The end

Launcher Data 

Begin job on node32 at 2009-03-29 00:37:28
IDJOB=1517306
IDBENCH=70585
IDSOLVER=522
FILE ID=node32/1517306-1238283448
PBS_JOBID= 9060962
Free space on /tmp= 66456 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/UNKNOWN/440/unif-k3-r4.25-v440-c1870-S393462637-097.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1517306-1238283448/watcher-1517306-1238283448 -o /tmp/evaluation-result-1517306-1238283448/solver-1517306-1238283448 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1517306-1238283448.cnf

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

MD5SUM BENCH= 7bb141e5170278fe5236c7e91edc07cf
RANDOM SEED=869100302

node32.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		: 3000.234
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		: 3000.234
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:       1432848 kB
Buffers:         66712 kB
Cached:         489392 kB
SwapCached:       7344 kB
Active:         131108 kB
Inactive:       433656 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1432848 kB
SwapTotal:     4192956 kB
SwapFree:      4178736 kB
Dirty:             948 kB
Writeback:           0 kB
Mapped:          14388 kB
Slab:            44120 kB
Committed_AS:  1448928 kB
PageTables:       1488 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= 66456 MiB
End job on node32 at 2009-03-29 00:41:11