CONFIGURATION

internal memory for sorting = 650 MB

EdgeVector default block size = 2048 KB
EdgeVector default #pages = 1
EdgeVector default page size = 4 block(s)

MST vector block size = 2048 KB
MST vector #pages = 1
MST vector page size = 4 block(s)

external bucket block size = 512 KB
external bucket page size = 1 block(s)

internal buckets: no of blocks = 1500000
internal buckets: edges per block = 8

Duplicates are removed.

The input is randomized.
--------------------

STXXL-DISK-CONFIGURATION (.stxxl)

disk=/mnt/hdq/stxxl,70000,syscall
disk=/mnt/hdi/stxxl,70000,syscall
disk=/mnt/hdk/stxxl,70000,syscall
disk=/mnt/hde/stxxl,70000,syscall

--------------------

RANDOM GRAPH

#nodes = 4.00e+07
#edges = 3.20e+08
#buckets = 0
#nodes which fit in internal memory = 1.60e+08
--------------------

EVENTS
total time:   0.00000 sec., section time:   0.00000 sec.  -  begin
total time: 380.36104 sec., section time: 380.36104 sec.  -  graph generated/imported
total time: 558.53346 sec., section time: 178.17242 sec.  -  Kruskal: edges sorted
total time: 559.32659 sec., section time:   0.79313 sec.  -  Kruskal: data structures initialized
total time: 971.67756 sec., section time: 412.35097 sec.  -  Kruskal: edges processed
total time: 971.71576 sec., section time:   0.03821 sec.  -  end
--------------------

RESULT
Minimum Spanning Tree:
total weight = 3005684415158
#edges = 39999996
--------------------

TIMING

total time = 5.91355e+02 sec.
time / m = 1.84798e-06 sec.
time / (m ln m) = 9.43627e-08 sec.
[m = #edges] 
--------------------

DUPLICATES
#duplicates removed = 0
--------------------