Trace number 1517209

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 41.1417 41.1552

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/UNKNOWN/400/
unif-k3-r4.25-v400-c1700-S1039370030-037.cnf
MD5SUMd12485f50a62e2b98f775ccf4d7988c2
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark41.1417
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, 16 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 397 free variables and 1684 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.382
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 184 duplicate clauses
0.00/0.01	c resolvent_look() :: found 74 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 400 variables and 1758 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 1758 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1758 / 400 ) = 4.39
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 = 397
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: 131
0.06/0.07	c |----------------------------------------------------------------|
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c |****************************************************************| ( 1/14) NodeCount: 1287
0.49/0.57	c |----------------------------------------------------------------|
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c |****************************************************************| ( 2/14) NodeCount: 5387
2.29/2.39	c |----------------------------------------------------------------|
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c |****************************************************************| ( 3/14) NodeCount: 14940
6.60/6.62	c |----------------------------------------------------------------|
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c |****************************************************************| ( 4/14) NodeCount: 33083
14.69/14.75	c |----------------------------------------------------------------|
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c |****************************************************************| ( 5/14) NodeCount: 53875
24.38/24.44	c |----------------------------------------------------------------|
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c |****************************************************************| ( 6/14) NodeCount: 71102
32.88/32.99	c |----------------------------------------------------------------|
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c |****************************************************************| ( 7/14) NodeCount: 80659
38.08/38.19	c |----------------------------------------------------------------|
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c |****************************************************************| ( 8/14) NodeCount: 84360
40.38/40.43	c |----------------------------------------------------------------|
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c |****************************************************************| ( 9/14) NodeCount: 85300
40.98/41.05	c |----------------------------------------------------------------|
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c |****************************************************************| (10/14) NodeCount: 85439
41.08/41.14	c |----------------------------------------------------------------|
c |****
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c |****************************************************************| (11/14) NodeCount: 85447
41.08/41.15	c |----------------------------------------------------------------|
c |
41.08/41.15	c
41.08/41.15	c main():: nodeCount: 85447
41.08/41.15	c main():: dead ends in main: 1177
41.08/41.15	c main():: lookAheadCount: 5752839
41.08/41.15	c main():: unitResolveCount: 883495
41.08/41.15	c main():: time=41.140000
41.08/41.15	c main():: necessary_assignments: 16254
41.08/41.15	c main():: bin_sat: 0, bin_unsat 0
41.08/41.15	c main():: doublelook: #: 337831, succes #: 244900
41.08/41.15	c main():: doublelook: overall 6.071 of all possible doublelooks executed
41.08/41.15	c main():: doublelook: succesrate: 72.492, average DL_trigger: 50.413
41.08/41.15	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-1517209-1238281950/watcher-1517209-1238281950 -o /tmp/evaluation-result-1517209-1238281950/solver-1517209-1238281950 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1517209-1238281950.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: 1.00 1.00 1.00 3/64 13038
/proc/meminfo: memFree=1902624/2055920 swapFree=4178496/4192956
[pid=13038] ppid=13036 vsize=976 CPUtime=0
/proc/13038/stat : 13038 (march_hi) R 13036 13038 12631 0 -1 4194304 136 0 0 0 0 0 0 0 18 0 1 0 1100862266 999424 119 1992294400 134512640 135197378 4294956240 18446744073709551615 134649111 0 0 4096 0 0 0 0 17 1 0 0
/proc/13038/statm: 244 119 65 167 0 75 0

[startup+0.0707211 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 13038
/proc/meminfo: memFree=1902624/2055920 swapFree=4178496/4192956
[pid=13038] ppid=13036 vsize=1556 CPUtime=0.06
/proc/13038/stat : 13038 (march_hi) R 13036 13038 12631 0 -1 4194304 250 0 0 0 6 0 0 0 18 0 1 0 1100862266 1593344 233 1992294400 134512640 135197378 4294956240 18446744073709551615 134548488 0 0 4096 0 0 0 0 17 1 0 0
/proc/13038/statm: 389 233 91 167 0 220 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 1556

[startup+0.101725 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 13038
/proc/meminfo: memFree=1902624/2055920 swapFree=4178496/4192956
[pid=13038] ppid=13036 vsize=1556 CPUtime=0.09
/proc/13038/stat : 13038 (march_hi) R 13036 13038 12631 0 -1 4194304 254 0 0 0 9 0 0 0 18 0 1 0 1100862266 1593344 237 1992294400 134512640 135197378 4294956240 18446744073709551615 134572898 0 0 4096 0 0 0 0 17 1 0 0
/proc/13038/statm: 389 237 91 167 0 220 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1556

[startup+0.301757 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 13038
/proc/meminfo: memFree=1902624/2055920 swapFree=4178496/4192956
[pid=13038] ppid=13036 vsize=1688 CPUtime=0.29
/proc/13038/stat : 13038 (march_hi) R 13036 13038 12631 0 -1 4194304 263 0 0 0 29 0 0 0 19 0 1 0 1100862266 1728512 246 1992294400 134512640 135197378 4294956240 18446744073709551615 134541930 0 0 4096 0 0 0 0 17 1 0 0
/proc/13038/statm: 422 246 91 167 0 253 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1688

[startup+0.701822 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 13038
/proc/meminfo: memFree=1902624/2055920 swapFree=4178496/4192956
[pid=13038] ppid=13036 vsize=1688 CPUtime=0.69
/proc/13038/stat : 13038 (march_hi) R 13036 13038 12631 0 -1 4194304 274 0 0 0 69 0 0 0 23 0 1 0 1100862266 1728512 257 1992294400 134512640 135197378 4294956240 18446744073709551615 134539323 0 0 4096 0 0 0 0 17 1 0 0
/proc/13038/statm: 422 257 91 167 0 253 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1688

[startup+1.50195 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 13039
/proc/meminfo: memFree=1901976/2055920 swapFree=4178496/4192956
[pid=13038] ppid=13036 vsize=1688 CPUtime=1.49
/proc/13038/stat : 13038 (march_hi) R 13036 13038 12631 0 -1 4194304 282 0 0 0 149 0 0 0 25 0 1 0 1100862266 1728512 265 1992294400 134512640 135197378 4294956240 18446744073709551615 134552753 0 0 4096 0 0 0 0 17 1 0 0
/proc/13038/statm: 422 265 91 167 0 253 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1688

[startup+3.10121 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 13039
/proc/meminfo: memFree=1901720/2055920 swapFree=4178496/4192956
[pid=13038] ppid=13036 vsize=1688 CPUtime=3.09
/proc/13038/stat : 13038 (march_hi) R 13036 13038 12631 0 -1 4194304 294 0 0 0 309 0 0 0 25 0 1 0 1100862266 1728512 277 1992294400 134512640 135197378 4294956240 18446744073709551615 134542026 0 0 4096 0 0 0 0 17 1 0 0
/proc/13038/statm: 422 277 91 167 0 253 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1688

[startup+6.30273 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 13039
/proc/meminfo: memFree=1901656/2055920 swapFree=4178496/4192956
[pid=13038] ppid=13036 vsize=1824 CPUtime=6.29
/proc/13038/stat : 13038 (march_hi) R 13036 13038 12631 0 -1 4194304 311 0 0 0 629 0 0 0 25 0 1 0 1100862266 1867776 294 1992294400 134512640 135197378 4294956240 18446744073709551615 134541930 0 0 4096 0 0 0 0 17 1 0 0
/proc/13038/statm: 456 294 91 167 0 287 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1824

[startup+12.7018 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 13039
/proc/meminfo: memFree=1901400/2055920 swapFree=4178496/4192956
[pid=13038] ppid=13036 vsize=1960 CPUtime=12.69
/proc/13038/stat : 13038 (march_hi) R 13036 13038 12631 0 -1 4194304 345 0 0 0 1269 0 0 0 25 0 1 0 1100862266 2007040 328 1992294400 134512640 135197378 4294956240 18446744073709551615 134548478 0 0 4096 0 0 0 0 17 1 0 0
/proc/13038/statm: 490 328 91 167 0 321 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1960

[startup+25.5018 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 13039
/proc/meminfo: memFree=1901208/2055920 swapFree=4178496/4192956
[pid=13038] ppid=13036 vsize=2128 CPUtime=25.48
/proc/13038/stat : 13038 (march_hi) R 13036 13038 12631 0 -1 4194304 383 0 0 0 2548 0 0 0 25 0 1 0 1100862266 2179072 366 1992294400 134512640 135197378 4294956240 18446744073709551615 134525420 0 0 4096 0 0 0 0 17 1 0 0
/proc/13038/statm: 532 366 91 167 0 363 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 2128

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

[startup+31.9049 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 13039
/proc/meminfo: memFree=1901144/2055920 swapFree=4178496/4192956
[pid=13038] ppid=13036 vsize=2280 CPUtime=31.88
/proc/13038/stat : 13038 (march_hi) R 13036 13038 12631 0 -1 4194304 403 0 0 0 3188 0 0 0 25 0 1 0 1100862266 2334720 386 1992294400 134512640 135197378 4294956240 18446744073709551615 134572855 0 0 4096 0 0 0 0 17 1 0 0
/proc/13038/statm: 570 386 91 167 0 401 0
Current children cumulated CPU time (s) 31.88
Current children cumulated vsize (KiB) 2280

[startup+35.1014 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 13039
/proc/meminfo: memFree=1901080/2055920 swapFree=4178496/4192956
[pid=13038] ppid=13036 vsize=2280 CPUtime=35.08
/proc/13038/stat : 13038 (march_hi) R 13036 13038 12631 0 -1 4194304 418 0 0 0 3508 0 0 0 25 0 1 0 1100862266 2334720 401 1992294400 134512640 135197378 4294956240 18446744073709551615 134542112 0 0 4096 0 0 0 0 17 1 0 0
/proc/13038/statm: 570 401 91 167 0 401 0
Current children cumulated CPU time (s) 35.08
Current children cumulated vsize (KiB) 2280

[startup+38.3019 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 13039
/proc/meminfo: memFree=1901016/2055920 swapFree=4178496/4192956
[pid=13038] ppid=13036 vsize=2280 CPUtime=38.28
/proc/13038/stat : 13038 (march_hi) R 13036 13038 12631 0 -1 4194304 431 0 0 0 3827 1 0 0 25 0 1 0 1100862266 2334720 414 1992294400 134512640 135197378 4294956240 18446744073709551615 134539276 0 0 4096 0 0 0 0 17 1 0 0
/proc/13038/statm: 570 414 91 167 0 401 0
Current children cumulated CPU time (s) 38.28
Current children cumulated vsize (KiB) 2280

[startup+39.9012 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 13039
/proc/meminfo: memFree=1901016/2055920 swapFree=4178496/4192956
[pid=13038] ppid=13036 vsize=2508 CPUtime=39.88
/proc/13038/stat : 13038 (march_hi) R 13036 13038 12631 0 -1 4194304 440 0 0 0 3987 1 0 0 25 0 1 0 1100862266 2568192 423 1992294400 134512640 135197378 4294956240 18446744073709551615 134539320 0 0 4096 0 0 0 0 17 1 0 0
/proc/13038/statm: 627 423 91 167 0 458 0
Current children cumulated CPU time (s) 39.88
Current children cumulated vsize (KiB) 2508

[startup+40.7053 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 13039
/proc/meminfo: memFree=1900952/2055920 swapFree=4178496/4192956
[pid=13038] ppid=13036 vsize=2508 CPUtime=40.68
/proc/13038/stat : 13038 (march_hi) R 13036 13038 12631 0 -1 4194304 444 0 0 0 4067 1 0 0 25 0 1 0 1100862266 2568192 427 1992294400 134512640 135197378 4294956240 18446744073709551615 134617953 0 0 4096 0 0 0 0 17 1 0 0
/proc/13038/statm: 627 427 91 167 0 458 0
Current children cumulated CPU time (s) 40.68
Current children cumulated vsize (KiB) 2508

[startup+41.1014 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 13039
/proc/meminfo: memFree=1900952/2055920 swapFree=4178496/4192956
[pid=13038] ppid=13036 vsize=2508 CPUtime=41.08
/proc/13038/stat : 13038 (march_hi) R 13036 13038 12631 0 -1 4194304 446 0 0 0 4107 1 0 0 25 0 1 0 1100862266 2568192 429 1992294400 134512640 135197378 4294956240 18446744073709551615 134590450 0 0 4096 0 0 0 0 17 1 0 0
/proc/13038/statm: 627 429 91 167 0 458 0
Current children cumulated CPU time (s) 41.08
Current children cumulated vsize (KiB) 2508

Child status: 20
Real time (s): 41.1552
CPU time (s): 41.1417
CPU user time (s): 41.1277
CPU system time (s): 0.013997
CPU usage (%): 99.9673
Max. virtual memory (cumulated for all children) (KiB): 2508

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 41.1277
system time used= 0.013997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 449
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= 76

runsolver used 0.041993 second user time and 0.090986 second system time

The end

Launcher Data 

Begin job on node3 at 2009-03-29 00:12:30
IDJOB=1517209
IDBENCH=70577
IDSOLVER=521
FILE ID=node3/1517209-1238281950
PBS_JOBID= 9060854
Free space on /tmp= 65904 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/UNKNOWN/400/unif-k3-r4.25-v400-c1700-S1039370030-037.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1517209-1238281950/watcher-1517209-1238281950 -o /tmp/evaluation-result-1517209-1238281950/solver-1517209-1238281950 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1517209-1238281950.cnf

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

MD5SUM BENCH= d12485f50a62e2b98f775ccf4d7988c2
RANDOM SEED=1596774211

node3.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		: 3000.275
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		: 3000.275
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:       1903104 kB
Buffers:         37808 kB
Cached:          48716 kB
SwapCached:       8268 kB
Active:          48108 kB
Inactive:        48336 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1903104 kB
SwapTotal:     4192956 kB
SwapFree:      4178496 kB
Dirty:             796 kB
Writeback:           0 kB
Mapped:          15576 kB
Slab:            42424 kB
Committed_AS:  2682440 kB
PageTables:       1376 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= 65904 MiB
End job on node3 at 2009-03-29 00:13:11