Trace number 1094801

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
MDG-probe 2008-06-27UNSAT 193.11 194.586

DiagnosticValue
ASSIGNMENTS5371
CHECKS1008910

General information on the benchmark

Namecsp/fapp/fapp20/
normalized-fapp20-0420-2.xml
MD5SUMb5be1e11c64ae0a3fe8c3477a50c68b1
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.36879
Satisfiable
(Un)Satisfiability was proved
Number of variables420
Number of constraints4737
Maximum constraint arity2
Maximum domain size302
Number of constraints which are defined in extension0
Number of constraints which are defined in intension4737
Global constraints used (with number of constraints)

Solver Data (download as text)

0.00/0.10	c mistral-prime version 1.313
0.00/0.10	c 
0.00/0.10	c Parsing xml file
0.00/0.10	c          domains...............     0	(14 domains)
0.00/0.10	c          variables.............     0	(420 variables)
0.00/0.10	c          predicates............     0	(6 predicates)
0.00/0.10	c          constraints...........  0.21	(4737 constraints)
0.18/0.21	c Parsing time:   0.21
0.18/0.21	c
0.18/0.21	c Building model
0.18/0.24	c         0 constants
0.18/0.24	c         0 Boolean variables    (+0)
0.18/0.24	c         0 range variables      (+0)
0.18/0.24	c         0 domain (b) variables (+0)
0.18/0.24	c       420 domain (l) variables (+0)
0.18/0.24	c      4737 constraints          (+0)
0.18/0.24	c         0 values 
0.18/0.24	c Building time:   0.01
0.18/0.24	c
0.18/0.24	c Solving instance
0.18/0.24	c          heuristic = dom/wdeg
0.18/0.24	c          Randomized probing iteration = 100
0.18/0.24	c          probing limit = 30
0.18/0.24	c          level based weights = no
0.18/0.24	c          impact probing = no
0.18/0.24	c          restart policy = No restart
0.18/0.24	c          probing ..........190.56
190.74/192.21	c          Probing Nodes  5318
190.74/192.21	c          final run   2.34
193.02/194.56	c Solving time:  192.9
193.02/194.56	c
193.02/194.56	s UNSATISFIABLE
193.02/194.56	d CHECKS 1008909
193.02/194.56	d ASSIGNMENTS 5371

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.5 (c) roussel@cril.univ-artois.fr

command line: /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1094801-1215279840/watcher-1094801-1215279840 -o /tmp/evaluation-result-1094801-1215279840/solver-1094801-1215279840 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1094801-1215279840.xml -v 1 -rs 1057013948 -probe 1 -ph 0 -heu dom/wdeg -res no 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2200 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 921600 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 972800 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: 2.00 2.03 2.00 4/72 22174
/proc/meminfo: memFree=1695696/2055920 swapFree=4179828/4192956
[pid=22174] ppid=22172 vsize=820 CPUtime=0
/proc/22174/stat : 22174 (xsolve) R 22172 22174 19008 0 -1 4194304 39 0 0 0 0 0 0 0 19 0 1 0 2006957456 839680 25 996147200 134512640 135239859 4294956144 18446744073709551615 7721764 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/22174/statm: 205 25 19 177 0 3 0

[startup+0.10795 s]
/proc/loadavg: 2.00 2.03 2.00 4/72 22174
/proc/meminfo: memFree=1695696/2055920 swapFree=4179828/4192956
[pid=22174] ppid=22172 vsize=6308 CPUtime=0.09
/proc/22174/stat : 22174 (xsolve) R 22172 22174 19008 0 -1 4194304 911 0 0 0 9 0 0 0 20 0 1 0 2006957456 6459392 877 996147200 134512640 135239859 4294956144 18446744073709551615 134618029 0 0 4096 0 0 0 0 17 1 0 0
/proc/22174/statm: 1577 877 397 177 0 480 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6308

[startup+0.202753 s]
/proc/loadavg: 2.00 2.03 2.00 4/72 22174
/proc/meminfo: memFree=1695696/2055920 swapFree=4179828/4192956
[pid=22174] ppid=22172 vsize=7664 CPUtime=0.18
/proc/22174/stat : 22174 (xsolve) R 22172 22174 19008 0 -1 4194304 1243 0 0 0 18 0 0 0 20 0 1 0 2006957456 7847936 1209 996147200 134512640 135239859 4294956144 18446744073709551615 134943456 0 0 4096 0 0 0 0 17 1 0 0
/proc/22174/statm: 1916 1209 397 177 0 819 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 7664

[startup+0.301768 s]
/proc/loadavg: 2.00 2.03 2.00 4/72 22174
/proc/meminfo: memFree=1695696/2055920 swapFree=4179828/4192956
[pid=22174] ppid=22172 vsize=19472 CPUtime=0.28
/proc/22174/stat : 22174 (xsolve) R 22172 22174 19008 0 -1 4194304 2742 0 0 0 27 1 0 0 21 0 1 0 2006957456 19939328 2708 996147200 134512640 135239859 4294956144 18446744073709551615 135096832 0 0 4096 0 0 0 0 17 1 0 0
/proc/22174/statm: 4868 2708 420 177 0 3771 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 19472

[startup+0.701828 s]
/proc/loadavg: 2.00 2.03 2.00 4/72 22174
/proc/meminfo: memFree=1695696/2055920 swapFree=4179828/4192956
[pid=22174] ppid=22172 vsize=19472 CPUtime=0.68
/proc/22174/stat : 22174 (xsolve) R 22172 22174 19008 0 -1 4194304 2742 0 0 0 67 1 0 0 25 0 1 0 2006957456 19939328 2708 996147200 134512640 135239859 4294956144 18446744073709551615 134539605 0 0 4096 0 0 0 0 17 1 0 0
/proc/22174/statm: 4868 2708 420 177 0 3771 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 19472

[startup+1.50195 s]
/proc/loadavg: 2.00 2.03 2.00 3/73 22175
/proc/meminfo: memFree=1686408/2055920 swapFree=4179828/4192956
[pid=22174] ppid=22172 vsize=19472 CPUtime=1.47
/proc/22174/stat : 22174 (xsolve) R 22172 22174 19008 0 -1 4194304 2742 0 0 0 146 1 0 0 25 0 1 0 2006957456 19939328 2708 996147200 134512640 135239859 4294956144 18446744073709551615 134532177 0 0 4096 0 0 0 0 17 1 0 0
/proc/22174/statm: 4868 2708 420 177 0 3771 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 19472

[startup+3.1012 s]
/proc/loadavg: 2.00 2.03 2.00 3/73 22175
/proc/meminfo: memFree=1686280/2055920 swapFree=4179828/4192956
[pid=22174] ppid=22172 vsize=19472 CPUtime=3.06
/proc/22174/stat : 22174 (xsolve) R 22172 22174 19008 0 -1 4194304 2743 0 0 0 305 1 0 0 25 0 1 0 2006957456 19939328 2709 996147200 134512640 135239859 4294956144 18446744073709551615 134543166 0 0 4096 0 0 0 0 17 1 0 0
/proc/22174/statm: 4868 2709 421 177 0 3771 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 19472

[startup+6.3017 s]
/proc/loadavg: 2.00 2.03 2.00 3/73 22175
/proc/meminfo: memFree=1686280/2055920 swapFree=4179828/4192956
[pid=22174] ppid=22172 vsize=19472 CPUtime=6.24
/proc/22174/stat : 22174 (xsolve) R 22172 22174 19008 0 -1 4194304 2743 0 0 0 623 1 0 0 25 0 1 0 2006957456 19939328 2709 996147200 134512640 135239859 4294956144 18446744073709551615 134535328 0 0 4096 0 0 0 0 17 1 0 0
/proc/22174/statm: 4868 2709 421 177 0 3771 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 19472

[startup+12.7017 s]
/proc/loadavg: 2.00 2.03 2.00 3/73 22175
/proc/meminfo: memFree=1686152/2055920 swapFree=4179828/4192956
[pid=22174] ppid=22172 vsize=19604 CPUtime=12.59
/proc/22174/stat : 22174 (xsolve) R 22172 22174 19008 0 -1 4194304 2750 0 0 0 1258 1 0 0 25 0 1 0 2006957456 20074496 2716 996147200 134512640 135239859 4294956144 18446744073709551615 134543138 0 0 4096 0 0 0 0 17 1 0 0
/proc/22174/statm: 4901 2716 422 177 0 3804 0
Current children cumulated CPU time (s) 12.59
Current children cumulated vsize (KiB) 19604

[startup+25.5017 s]
/proc/loadavg: 2.00 2.02 2.00 3/73 22175
/proc/meminfo: memFree=1686152/2055920 swapFree=4179828/4192956
[pid=22174] ppid=22172 vsize=19604 CPUtime=25.3
/proc/22174/stat : 22174 (xsolve) R 22172 22174 19008 0 -1 4194304 2750 0 0 0 2528 2 0 0 25 0 1 0 2006957456 20074496 2716 996147200 134512640 135239859 4294956144 18446744073709551615 134820150 0 0 4096 0 0 0 0 17 1 0 0
/proc/22174/statm: 4901 2716 422 177 0 3804 0
Current children cumulated CPU time (s) 25.3
Current children cumulated vsize (KiB) 19604

[startup+51.1016 s]
/proc/loadavg: 2.00 2.02 2.00 3/73 22175
/proc/meminfo: memFree=1686152/2055920 swapFree=4179828/4192956
[pid=22174] ppid=22172 vsize=19604 CPUtime=50.71
/proc/22174/stat : 22174 (xsolve) R 22172 22174 19008 0 -1 4194304 2750 0 0 0 5069 2 0 0 25 0 1 0 2006957456 20074496 2716 996147200 134512640 135239859 4294956144 18446744073709551615 134534753 0 0 4096 0 0 0 0 17 1 0 0
/proc/22174/statm: 4901 2716 422 177 0 3804 0
Current children cumulated CPU time (s) 50.71
Current children cumulated vsize (KiB) 19604

[startup+102.302 s]
/proc/loadavg: 2.00 2.02 2.00 3/73 22175
/proc/meminfo: memFree=1686024/2055920 swapFree=4179828/4192956
[pid=22174] ppid=22172 vsize=19604 CPUtime=101.52
/proc/22174/stat : 22174 (xsolve) R 22172 22174 19008 0 -1 4194304 2750 0 0 0 10150 2 0 0 25 0 1 0 2006957456 20074496 2716 996147200 134512640 135239859 4294956144 18446744073709551615 134534768 0 0 4096 0 0 0 0 17 1 0 0
/proc/22174/statm: 4901 2716 422 177 0 3804 0
Current children cumulated CPU time (s) 101.52
Current children cumulated vsize (KiB) 19604

[startup+162.302 s]
/proc/loadavg: 2.00 2.01 2.00 3/73 22175
/proc/meminfo: memFree=1685832/2055920 swapFree=4179828/4192956
[pid=22174] ppid=22172 vsize=19604 CPUtime=161.06
/proc/22174/stat : 22174 (xsolve) R 22172 22174 19008 0 -1 4194304 2750 0 0 0 16104 2 0 0 25 0 1 0 2006957456 20074496 2716 996147200 134512640 135239859 4294956144 18446744073709551615 135103472 0 0 4096 0 0 0 0 17 1 0 0
/proc/22174/statm: 4901 2716 422 177 0 3804 0
Current children cumulated CPU time (s) 161.06
Current children cumulated vsize (KiB) 19604

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

[startup+179.201 s]
/proc/loadavg: 2.00 2.01 2.00 3/73 22175
/proc/meminfo: memFree=1685832/2055920 swapFree=4179828/4192956
[pid=22174] ppid=22172 vsize=19604 CPUtime=177.84
/proc/22174/stat : 22174 (xsolve) R 22172 22174 19008 0 -1 4194304 2750 0 0 0 17782 2 0 0 25 0 1 0 2006957456 20074496 2716 996147200 134512640 135239859 4294956144 18446744073709551615 134535354 0 0 4096 0 0 0 0 17 1 0 0
/proc/22174/statm: 4901 2716 422 177 0 3804 0
Current children cumulated CPU time (s) 177.84
Current children cumulated vsize (KiB) 19604

[startup+185.601 s]
/proc/loadavg: 2.00 2.01 2.00 3/73 22175
/proc/meminfo: memFree=1685832/2055920 swapFree=4179828/4192956
[pid=22174] ppid=22172 vsize=19604 CPUtime=184.19
/proc/22174/stat : 22174 (xsolve) R 22172 22174 19008 0 -1 4194304 2750 0 0 0 18417 2 0 0 25 0 1 0 2006957456 20074496 2716 996147200 134512640 135239859 4294956144 18446744073709551615 134543046 0 0 4096 0 0 0 0 17 1 0 0
/proc/22174/statm: 4901 2716 422 177 0 3804 0
Current children cumulated CPU time (s) 184.19
Current children cumulated vsize (KiB) 19604

[startup+188.802 s]
/proc/loadavg: 2.00 2.01 2.00 3/73 22175
/proc/meminfo: memFree=1685832/2055920 swapFree=4179828/4192956
[pid=22174] ppid=22172 vsize=19604 CPUtime=187.36
/proc/22174/stat : 22174 (xsolve) R 22172 22174 19008 0 -1 4194304 2750 0 0 0 18734 2 0 0 25 0 1 0 2006957456 20074496 2716 996147200 134512640 135239859 4294956144 18446744073709551615 134534768 0 0 4096 0 0 0 0 17 1 0 0
/proc/22174/statm: 4901 2716 422 177 0 3804 0
Current children cumulated CPU time (s) 187.36
Current children cumulated vsize (KiB) 19604

[startup+192.001 s]
/proc/loadavg: 2.00 2.01 2.00 3/73 22175
/proc/meminfo: memFree=1685832/2055920 swapFree=4179828/4192956
[pid=22174] ppid=22172 vsize=19604 CPUtime=190.54
/proc/22174/stat : 22174 (xsolve) R 22172 22174 19008 0 -1 4194304 2750 0 0 0 19052 2 0 0 25 0 1 0 2006957456 20074496 2716 996147200 134512640 135239859 4294956144 18446744073709551615 134538511 0 0 4096 0 0 0 0 17 1 0 0
/proc/22174/statm: 4901 2716 422 177 0 3804 0
Current children cumulated CPU time (s) 190.54
Current children cumulated vsize (KiB) 19604

[startup+193.602 s]
/proc/loadavg: 2.00 2.01 2.00 3/73 22175
/proc/meminfo: memFree=1685832/2055920 swapFree=4179828/4192956
[pid=22174] ppid=22172 vsize=19604 CPUtime=192.13
/proc/22174/stat : 22174 (xsolve) R 22172 22174 19008 0 -1 4194304 2751 0 0 0 19211 2 0 0 25 0 1 0 2006957456 20074496 2717 996147200 134512640 135239859 4294956144 18446744073709551615 134535329 0 0 4096 0 0 0 0 17 1 0 0
/proc/22174/statm: 4901 2717 423 177 0 3804 0
Current children cumulated CPU time (s) 192.13
Current children cumulated vsize (KiB) 19604

[startup+194.002 s]
/proc/loadavg: 2.00 2.01 2.00 3/73 22175
/proc/meminfo: memFree=1685832/2055920 swapFree=4179828/4192956
[pid=22174] ppid=22172 vsize=19604 CPUtime=192.52
/proc/22174/stat : 22174 (xsolve) R 22172 22174 19008 0 -1 4194304 2751 0 0 0 19250 2 0 0 25 0 1 0 2006957456 20074496 2717 996147200 134512640 135239859 4294956144 18446744073709551615 134532182 0 0 4096 0 0 0 0 17 1 0 0
/proc/22174/statm: 4901 2717 423 177 0 3804 0
Current children cumulated CPU time (s) 192.52
Current children cumulated vsize (KiB) 19604

[startup+194.402 s]
/proc/loadavg: 2.00 2.01 2.00 3/73 22175
/proc/meminfo: memFree=1685832/2055920 swapFree=4179828/4192956
[pid=22174] ppid=22172 vsize=19604 CPUtime=192.92
/proc/22174/stat : 22174 (xsolve) R 22172 22174 19008 0 -1 4194304 2751 0 0 0 19290 2 0 0 25 0 1 0 2006957456 20074496 2717 996147200 134512640 135239859 4294956144 18446744073709551615 134540177 0 0 4096 0 0 0 0 17 1 0 0
/proc/22174/statm: 4901 2717 423 177 0 3804 0
Current children cumulated CPU time (s) 192.92
Current children cumulated vsize (KiB) 19604

[startup+194.502 s]
/proc/loadavg: 2.00 2.01 2.00 3/73 22175
/proc/meminfo: memFree=1685832/2055920 swapFree=4179828/4192956
[pid=22174] ppid=22172 vsize=19604 CPUtime=193.02
/proc/22174/stat : 22174 (xsolve) R 22172 22174 19008 0 -1 4194304 2751 0 0 0 19300 2 0 0 25 0 1 0 2006957456 20074496 2717 996147200 134512640 135239859 4294956144 18446744073709551615 134532177 0 0 4096 0 0 0 0 17 1 0 0
/proc/22174/statm: 4901 2717 423 177 0 3804 0
Current children cumulated CPU time (s) 193.02
Current children cumulated vsize (KiB) 19604

Child status: 0
Real time (s): 194.586
CPU time (s): 193.11
CPU user time (s): 193.087
CPU system time (s): 0.022996
CPU usage (%): 99.2415
Max. virtual memory (cumulated for all children) (KiB): 19604

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 193.087
system time used= 0.022996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2762
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= 7
involuntary context switches= 4219

runsolver used 0.19197 second user time and 0.52392 second system time

The end

Launcher Data (download as text)

Begin job on node34 at 2008-07-05 19:44:00
IDJOB=1094801
IDBENCH=58833
IDSOLVER=342
FILE ID=node34/1094801-1215279840
PBS_JOBID= 7882190
Free space on /tmp= 66504 MiB

SOLVER NAME= MDG-probe 2008-06-27
BENCH NAME= CPAI08/csp/fapp/fapp20/normalized-fapp20-0420-2.xml
COMMAND LINE= HOME/xsolve BENCHNAME -v 1 -rs RANDOMSEED -probe 1 -ph 0 -heu dom/wdeg -res no
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1094801-1215279840/watcher-1094801-1215279840 -o /tmp/evaluation-result-1094801-1215279840/solver-1094801-1215279840 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1094801-1215279840.xml -v 1 -rs 1057013948 -probe 1 -ph 0 -heu dom/wdeg -res no

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= b5be1e11c64ae0a3fe8c3477a50c68b1
RANDOM SEED=1057013948

node34.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		: 3000.259
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		: 3000.259
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:       1696176 kB
Buffers:         48924 kB
Cached:         201864 kB
SwapCached:       7272 kB
Active:         201700 kB
Inactive:       105664 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1696176 kB
SwapTotal:     4192956 kB
SwapFree:      4179828 kB
Dirty:            1788 kB
Writeback:           0 kB
Mapped:          63724 kB
Slab:            37600 kB
Committed_AS:  3616824 kB
PageTables:       1888 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= 66504 MiB
End job on node34 at 2008-07-05 19:47:14