Virtual
Library Project
Publications
of the Genova group
A practical approach to efficient use of
heterogeneous PC network for parallel mathematical computation
A.Clematis, G.Dodero, V.Gianuzzi
Proc. HPCN 2001, Amsterdam, 25-27 June 2001. LNCS, Springer
Verlag.
This paper presents an experience in use of a parallel
mathematical library, ScaLAPACK, on a network composed by
heterogeneous workstations. The good performance results have
been obtained by means of a distributed programming environment,
which is able to dynamically evaluate available cmputing power at
each workstation and to distribute accordingly the set of
parallel processes.
Experiencing a parallel mathematical library
on a PC network
A.Clematis, G.Dodero, V.Gianuzzi
Proc. ITLA 2001, Havana,Cuba, 19-23 Marzo 2001.
The paper presents an experience in use of a parallel
mathematical library, ScaLAPACK, on a network composed by
heterogeneous workstations.
Efficient use of parallel libraries on
heterogeneous Networks of Workstations
A.Clematis, G.Dodero, V.Gianuzzi
J.of Systems Architecture, Vol.46, No.8, May 2000, 641-653.
The paper is motivated by efficiency considerations about porting
mathematical software from massively parallel processors to
networks of workstations. Heterogeneity of the network is the
major obstacle to efficient porting: it can be overcome with a
specialized system, PINCO, for monitoring available computational
power at different nodes, both statically and dynamically. The
structure and functionalities of PINCO are outlined, and a
significant porting example, matrix multiplication, is presented.
A resource management tool for
heterogeneous networks
A. Clematis G. Dodero, V.
Gianuzzi
PDP'99 - 7th Euromicro Workshop on Parallel and Distributed
Processing, Madeira, Portugal, February 3-5 1999, 367-373.
We describe the design principles and implementation of a tool to
be used as Resource Manager on arbitrary networks of
workstations. It evaluates both statically (off-line) and
dynamically (on-line) the computational power and workload of
each node in the network, in order to select the most performant
computers after each application request for task spawning to the
network. The tool is a component of a system to implement
Parallel Virtual Libraries on heterogeneous networks of
workstations.
Parallel virtual libraries: a system
for resource management
A.Clematis, G.Dodero,
V.Gianuzzi
WSDAAL 98 - Certosa di Pontignano (SI) 28-30 settembre 1998.
This short paper describes a system funded by CNR, which supports
solutions for computationally intensive problems on Networks of
Workstations. Such networks usually are highly non-homogeneous,
thus requiring a specialized competence in scaling and locating
parallel applications, in order to maintain load balancing.