Trace number 311520

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, and are wall clock time (not CPU 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
MXC 2007-02-08SAT 129.015 129.069

General information on the benchmark

Namerandom/2+p/p0.8/v2035/
unif2p-p0.8-v2035-c6328-S668297284-15-SAT.cnf
MD5SUM4d15e4ef1977463310683c8d04611f9d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.433933
Satisfiable
(Un)Satisfiability was proved
Number of variables2035
Number of clauses6327
Sum of the clauses size17716
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 21265
Number of clauses of size 35062
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

128.93/129.06	c MXC attempting /tmp/evaluation/311520-1172571310/instance-311520-1172571310.cnf
128.93/129.06	c 0 assignments made, starting to guess now
128.93/129.06	c ===================================[MXC]=====================================
128.93/129.06	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
128.93/129.06	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
128.93/129.06	c =============================================================================
128.93/129.06	c |         0 |    5062    15186 |    1687       0       0     nan |  0.000 % |
128.93/129.06	c |       101 |    5062    15186 |    1855      98    2381    24.3 |  0.000 % |
128.93/129.06	c |       252 |    5062    15186 |    2041     248    6067    24.5 |  0.000 % |
128.93/129.06	c |       477 |    5062    15186 |    2245     471   11430    24.3 |  0.000 % |
128.93/129.06	c |       816 |    5062    15186 |    2469     809   20484    25.3 |  0.000 % |
128.93/129.06	c |      1322 |    5062    15186 |    2716    1314   34615    26.3 |  0.000 % |
128.93/129.06	c |      2081 |    5062    15186 |    2988    2072   53267    25.7 |  0.000 % |
128.93/129.06	c |      3220 |    5062    15186 |    3287    1715   42407    24.7 |  0.000 % |
128.93/129.06	c |      4928 |    5062    15186 |    3616    1777   49534    27.9 |  0.000 % |
128.93/129.06	c |      7490 |    5062    15186 |    3977    2532   64801    25.6 |  0.000 % |
128.93/129.06	c |     11334 |    5062    15186 |    4375    2393   65104    27.2 |  0.000 % |
128.93/129.06	c |     17100 |    5062    15186 |    4813    3783  105220    27.8 |  0.000 % |
128.93/129.06	c |     25749 |    5062    15186 |    5294    2809   79339    28.2 |  0.000 % |
128.93/129.06	c |     38725 |    5062    15186 |    5823    5195  130715    25.2 |  0.000 % |
128.93/129.06	c |     58186 |    5062    15186 |    6406    4282  113292    26.5 |  0.000 % |
128.93/129.06	c |     87379 |    5062    15186 |    7047    4664  122425    26.2 |  0.000 % |
128.93/129.06	c |    131169 |    5062    15186 |    7751    6230  191265    30.7 |  0.000 % |
128.93/129.06	c |    196853 |    5062    15186 |    8526    6052  188966    31.2 |  0.000 % |
128.93/129.06	c |    295379 |    5062    15186 |    9379    6543  176740    27.0 |  0.000 % |
128.93/129.06	c |    443169 |    5062    15186 |   10317    9045  221754    24.5 |  0.000 % |
128.93/129.06	c |    664854 |    5062    15186 |   11349    9080  273995    30.2 |  0.000 % |
128.93/129.06	c 129.020s elapsed
128.93/129.06	c restarts: 20
128.93/129.06	c decisions: 953317
128.93/129.06	c propagations: 182196539
128.93/129.06	c conflicts: 771559
128.93/129.06	s SATISFIABLE
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Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node23/watcher-311520-1172571310 -o ROOT/results/node23/solver-311520-1172571310 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/311520-1172571310/mxc /tmp/evaluation/311520-1172571310/instance-311520-1172571310.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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: 0.92 0.98 0.99 3/77 23242
/proc/meminfo: memFree=1799328/2055920 swapFree=4145516/4192956
[pid=23242] ppid=23240 vsize=1388 CPUtime=0
/proc/23242/stat : 23242 (mxc) R 23240 23242 23185 0 -1 4194304 195 0 0 0 0 0 0 0 18 0 1 0 277084952 1421312 179 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/23242/statm: 347 180 46 122 0 221 0

[startup+0.106837 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 23242
/proc/meminfo: memFree=1799328/2055920 swapFree=4145516/4192956
[pid=23242] ppid=23240 vsize=1520 CPUtime=0.1
/proc/23242/stat : 23242 (mxc) R 23240 23242 23185 0 -1 4194304 245 0 0 0 10 0 0 0 18 0 1 0 277084952 1556480 229 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134535083 0 0 4096 0 0 0 0 17 1 0 0
/proc/23242/statm: 380 229 59 122 0 254 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1520

[startup+0.514883 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 23242
/proc/meminfo: memFree=1799328/2055920 swapFree=4145516/4192956
[pid=23242] ppid=23240 vsize=1924 CPUtime=0.51
/proc/23242/stat : 23242 (mxc) R 23240 23242 23185 0 -1 4194304 349 0 0 0 51 0 0 0 21 0 1 0 277084952 1970176 331 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519964 0 0 4096 0 0 0 0 17 1 0 0
/proc/23242/statm: 481 331 67 122 0 355 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 1924

[startup+1.33598 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 23243
/proc/meminfo: memFree=1797976/2055920 swapFree=4145516/4192956
[pid=23242] ppid=23240 vsize=2044 CPUtime=1.33
/proc/23242/stat : 23242 (mxc) R 23240 23242 23185 0 -1 4194304 397 0 0 0 133 0 0 0 25 0 1 0 277084952 2093056 379 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/23242/statm: 511 379 67 122 0 385 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 2044

[startup+2.97716 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 23243
/proc/meminfo: memFree=1797592/2055920 swapFree=4145516/4192956
[pid=23242] ppid=23240 vsize=2324 CPUtime=2.97
/proc/23242/stat : 23242 (mxc) R 23240 23242 23185 0 -1 4194304 461 0 0 0 297 0 0 0 25 0 1 0 277084952 2379776 443 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519635 0 0 4096 0 0 0 0 17 1 0 0
/proc/23242/statm: 581 443 67 122 0 455 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 2324

[startup+6.25354 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 23243
/proc/meminfo: memFree=1797400/2055920 swapFree=4145516/4192956
[pid=23242] ppid=23240 vsize=2588 CPUtime=6.24
/proc/23242/stat : 23242 (mxc) R 23240 23242 23185 0 -1 4194304 513 0 0 0 624 0 0 0 25 0 1 0 277084952 2650112 495 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134531482 0 0 4096 0 0 0 0 17 1 0 0
/proc/23242/statm: 647 495 67 122 0 521 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 2588

[startup+12.7103 s]
/proc/loadavg: 0.94 0.98 0.99 2/78 23243
/proc/meminfo: memFree=1796832/2055920 swapFree=4145516/4192956
[pid=23242] ppid=23240 vsize=2940 CPUtime=12.7
/proc/23242/stat : 23242 (mxc) R 23240 23242 23185 0 -1 4194304 616 0 0 0 1270 0 0 0 25 0 1 0 277084952 3010560 598 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134534974 0 0 4096 0 0 0 0 17 1 0 0
/proc/23242/statm: 735 598 67 122 0 609 0
Current children cumulated CPU time (s) 12.7
Current children cumulated vsize (KiB) 2940

[startup+25.5127 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 23243
/proc/meminfo: memFree=1796320/2055920 swapFree=4145516/4192956
[pid=23242] ppid=23240 vsize=3536 CPUtime=25.5
/proc/23242/stat : 23242 (mxc) R 23240 23242 23185 0 -1 4194304 750 0 0 0 2550 0 0 0 25 0 1 0 277084952 3620864 732 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/23242/statm: 884 732 67 122 0 758 0
Current children cumulated CPU time (s) 25.5
Current children cumulated vsize (KiB) 3536

[startup+51.1236 s]
/proc/loadavg: 0.96 0.98 0.99 2/78 23243
/proc/meminfo: memFree=1796000/2055920 swapFree=4145516/4192956
[pid=23242] ppid=23240 vsize=3788 CPUtime=51.1
/proc/23242/stat : 23242 (mxc) R 23240 23242 23185 0 -1 4194304 827 0 0 0 5110 0 0 0 25 0 1 0 277084952 3878912 809 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134534127 0 0 4096 0 0 0 0 17 1 0 0
/proc/23242/statm: 947 809 67 122 0 821 0
Current children cumulated CPU time (s) 51.1
Current children cumulated vsize (KiB) 3788

[startup+102.341 s]
/proc/loadavg: 0.98 0.98 0.99 2/78 23243
/proc/meminfo: memFree=1794848/2055920 swapFree=4145516/4192956
[pid=23242] ppid=23240 vsize=4888 CPUtime=102.3
/proc/23242/stat : 23242 (mxc) R 23240 23242 23185 0 -1 4194304 1099 0 0 0 10229 1 0 0 25 0 1 0 277084952 5005312 1081 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519200 0 0 4096 0 0 0 0 17 1 0 0
/proc/23242/statm: 1222 1081 67 122 0 1096 0
Current children cumulated CPU time (s) 102.3
Current children cumulated vsize (KiB) 4888

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

[startup+104.907 s]
/proc/loadavg: 0.98 0.98 0.99 2/78 23243
/proc/meminfo: memFree=1794784/2055920 swapFree=4145516/4192956
[pid=23242] ppid=23240 vsize=4980 CPUtime=104.87
/proc/23242/stat : 23242 (mxc) R 23240 23242 23185 0 -1 4194304 1106 0 0 0 10486 1 0 0 25 0 1 0 277084952 5099520 1088 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519610 0 0 4096 0 0 0 0 17 1 0 0
/proc/23242/statm: 1245 1088 67 122 0 1119 0
Current children cumulated CPU time (s) 104.87
Current children cumulated vsize (KiB) 4980

[startup+118.02 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 23243
/proc/meminfo: memFree=1794720/2055920 swapFree=4145516/4192956
[pid=23242] ppid=23240 vsize=5164 CPUtime=117.97
/proc/23242/stat : 23242 (mxc) R 23240 23242 23185 0 -1 4194304 1154 0 0 0 11796 1 0 0 25 0 1 0 277084952 5287936 1136 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/23242/statm: 1291 1136 67 122 0 1165 0
Current children cumulated CPU time (s) 117.97
Current children cumulated vsize (KiB) 5164

[startup+124.578 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 23243
/proc/meminfo: memFree=1794592/2055920 swapFree=4145516/4192956
[pid=23242] ppid=23240 vsize=5160 CPUtime=124.53
/proc/23242/stat : 23242 (mxc) R 23240 23242 23185 0 -1 4194304 1154 0 0 0 12452 1 0 0 25 0 1 0 277084952 5283840 1136 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519232 0 0 4096 0 0 0 0 17 1 0 0
/proc/23242/statm: 1290 1136 67 122 0 1164 0
Current children cumulated CPU time (s) 124.53
Current children cumulated vsize (KiB) 5160

[startup+126.214 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 23243
/proc/meminfo: memFree=1794592/2055920 swapFree=4145516/4192956
[pid=23242] ppid=23240 vsize=5160 CPUtime=126.17
/proc/23242/stat : 23242 (mxc) R 23240 23242 23185 0 -1 4194304 1154 0 0 0 12616 1 0 0 25 0 1 0 277084952 5283840 1136 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519635 0 0 4096 0 0 0 0 17 1 0 0
/proc/23242/statm: 1290 1136 67 122 0 1164 0
Current children cumulated CPU time (s) 126.17
Current children cumulated vsize (KiB) 5160

[startup+127.854 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 23243
/proc/meminfo: memFree=1794592/2055920 swapFree=4145516/4192956
[pid=23242] ppid=23240 vsize=5160 CPUtime=127.8
/proc/23242/stat : 23242 (mxc) R 23240 23242 23185 0 -1 4194304 1154 0 0 0 12779 1 0 0 25 0 1 0 277084952 5283840 1136 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/23242/statm: 1290 1136 67 122 0 1164 0
Current children cumulated CPU time (s) 127.8
Current children cumulated vsize (KiB) 5160

[startup+128.674 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 23243
/proc/meminfo: memFree=1794592/2055920 swapFree=4145516/4192956
[pid=23242] ppid=23240 vsize=5160 CPUtime=128.62
/proc/23242/stat : 23242 (mxc) R 23240 23242 23185 0 -1 4194304 1154 0 0 0 12861 1 0 0 25 0 1 0 277084952 5283840 1136 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519924 0 0 4096 0 0 0 0 17 1 0 0
/proc/23242/statm: 1290 1136 67 122 0 1164 0
Current children cumulated CPU time (s) 128.62
Current children cumulated vsize (KiB) 5160

[startup+128.878 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 23243
/proc/meminfo: memFree=1794592/2055920 swapFree=4145516/4192956
[pid=23242] ppid=23240 vsize=5160 CPUtime=128.83
/proc/23242/stat : 23242 (mxc) R 23240 23242 23185 0 -1 4194304 1154 0 0 0 12882 1 0 0 25 0 1 0 277084952 5283840 1136 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519332 0 0 4096 0 0 0 0 17 1 0 0
/proc/23242/statm: 1290 1136 67 122 0 1164 0
Current children cumulated CPU time (s) 128.83
Current children cumulated vsize (KiB) 5160

[startup+128.98 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 23243
/proc/meminfo: memFree=1794592/2055920 swapFree=4145516/4192956
[pid=23242] ppid=23240 vsize=5160 CPUtime=128.93
/proc/23242/stat : 23242 (mxc) R 23240 23242 23185 0 -1 4194304 1154 0 0 0 12892 1 0 0 25 0 1 0 277084952 5283840 1136 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134531137 0 0 4096 0 0 0 0 17 1 0 0
/proc/23242/statm: 1290 1136 67 122 0 1164 0
Current children cumulated CPU time (s) 128.93
Current children cumulated vsize (KiB) 5160

Child status: 10
Real time (s): 129.069
CPU time (s): 129.015
CPU user time (s): 128.998
CPU system time (s): 0.016997
CPU usage (%): 99.9584
Max. virtual memory (cumulated for all children) (KiB): 5164

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 128.998
system time used= 0.016997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1156
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= 11
involuntary context switches= 244

runsolver used 0.158975 second user time and 0.300954 second system time

The end

Launcher Data (download as text)

Begin job on node23 on Tue Feb 27 10:15:11 UTC 2007

IDJOB= 311520
IDBENCH= 20316
IDSOLVER= 107
FILE ID= node23/311520-1172571310

PBS_JOBID= 3971914

Free space on /tmp= 66560 MiB

SOLVER NAME= MXC 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v2035/unif2p-p0.8-v2035-c6328-S668297284-15-SAT.cnf
COMMAND LINE= /tmp/evaluation/311520-1172571310/mxc /tmp/evaluation/311520-1172571310/instance-311520-1172571310.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node23/watcher-311520-1172571310 -o ROOT/results/node23/solver-311520-1172571310 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/311520-1172571310/mxc /tmp/evaluation/311520-1172571310/instance-311520-1172571310.cnf            

META MD5SUM SOLVER= fd459248d3e92e664505cc2f0f683bf4
MD5SUM BENCH=  4d15e4ef1977463310683c8d04611f9d

RANDOM SEED= 344515343

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node23.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.216
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		: 3000.216
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:       1799736 kB
Buffers:         38292 kB
Cached:         151448 kB
SwapCached:      15212 kB
Active:         121352 kB
Inactive:        95668 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1799736 kB
SwapTotal:     4192956 kB
SwapFree:      4145516 kB
Dirty:             840 kB
Writeback:           0 kB
Mapped:          29908 kB
Slab:            24836 kB
Committed_AS:   774112 kB
PageTables:       1696 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 node23 on Tue Feb 27 10:17:20 UTC 2007