Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Performance Characterisation of Intra-Cluster Collective Communications   Although recent works try to improve collective communication in grid systems
by separating intra and inter-cluster communication, the optimisation of
communications focus only on inter-cluster communications. We believe, instead,
that the overall performance of the application may be improved if
intra-cluster collective communications performance is known in advance. Hence,
it is important to have an accurate model of the intra-cluster collective
communications, which provides the necessary evidences to tune and to predict
their performance correctly. In this paper we present our experience on
modelling such communication strategies. We describe and compare different
implementation strategies with their communication models, evaluating the
models' accuracy and describing the practical challenges that can be found when
modelling collective communications.

31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys
15
The categories of this paper are: nucl-ex
0
The categories of this paper are: hep-ph
35
The categories of this paper are: mtrl-th
12
The categories of this paper are: nucl-th
14
The categories of this paper are: math-ph
2
The categories of this paper are: math
4
The categories of this paper are: cond-mat
21
The categories of this paper are: adap-org
36
The categories of this paper are: cmp-lg
19
The categories of this paper are: eess
24
The categories of this paper are: dg-ga
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
25
The categories of this paper are: patt-sol