Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A complex network approach to cloud computing   Cloud computing has become an important means to speed up computing. One
problem influencing heavily the performance of such systems is the choice of
nodes as servers responsible for executing the users' tasks. In this article we
report how complex networks can be used to model such a problem. More
specifically, we investigate the performance of the processing respectively to
cloud systems underlain by Erdos-Renyi and Barabasi-Albert topology containing
two servers. Cloud networks involving two communities not necessarily of the
same size are also considered in our analysis. The performance of each
configuration is quantified in terms of two indices: the cost of communication
between the user and the nearest server, and the balance of the distribution of
tasks between the two servers. Regarding the latter index, the ER topology
provides better performance than the BA case for smaller average degrees and
opposite behavior for larger average degrees. With respect to the cost, smaller
values are found in the BA topology irrespective of the average degree. In
addition, we also verified that it is easier to find good servers in the ER
than in BA. Surprisingly, balance and cost are not too much affected by the
presence of communities. However, for a well-defined community network, we
found that it is important to assign each server to a different community so as
to achieve better performance.

36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph
33
The categories of this paper are: plasm-ph
5
The categories of this paper are: gr-qc
23
The categories of this paper are: solv-int
29
The categories of this paper are: funct-an
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas
9
The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
17
The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph