This paper presents CPVM, a library that provides the user with a support to implement non blocking, blobal checkpoint- restart algorithms for applications written using PVM thereby achieving fault-tolerance. A salient feature of CPVM is the way in which, solely on the basis of a simple set of new PVM primitives, it provides several advanced...
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1996 (v1)PublicationUploaded on: December 5, 2022
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1999 (v1)Publication
Message passing libraries are now widely used to develop parallel and distributed applications. Despite different services are provided by the available packages, still little support is given for distributed consistent cut, a facility which constitutes the base for higher level services both at system level (e.g. distributed debugging and...
Uploaded on: December 5, 2022 -
1997 (v1)Publication
No description
Uploaded on: December 5, 2022 -
2000 (v1)Publication
The paper is motivated by efficiency considerations about porting mathematical software from Massively Parallel Processors (MPPs) to Networks of Workstations (NOWs). Heterogeneity of the network is the major obstacle to efficient porting: it can be overcome with a specialized system, Programming envIronment for Network of COmputers (PINCO),...
Uploaded on: December 5, 2022 -
2008 (v1)Publication
We present a distributed approach for grid resource discovery, which combines a structured view of resources (single machines, homogeneous and heterogeneous clusters) at the physical organization (PO) level with a super-peer network connecting the various POs. The proposed architecture is modular and independent of the particular grid...
Uploaded on: April 14, 2023 -
2003 (v1)Publication
In this paper we present a parallel algorithm, implemented using MPICH, for isosurface extraction from volumetric data sets. The main contribution of this paper is in the analysis and performance improvements of the different phases of the isosurface production process including computation and output generation. The resulting algorithm is...
Uploaded on: April 14, 2023 -
2005 (v1)Publication
In a distributed visualization environment transmission time is dominant because of the amount of data to be moved and the limitations of available bandwidth. In this paper we address the problem to speed up the compression operation of large Triangulated Irregular Networks (TIN) using commodity clusters. In our case TINs represent isosurfaces...
Uploaded on: March 25, 2023 -
2010 (v1)Publication
We present SoRTSim, a high-level simulator designed to evaluate tools built over the middleware to support additional services besides the stan- dard ones, particularly to allow the execution on Grid platforms of appli- cations with strict QoS requirements, up to Soft Real-Time. SoRTSim has been designed to be quite general and to be easily...
Uploaded on: March 31, 2023 -
1998 (v1)Publication
Message passing applications on a distributed computer require tools to integrate state saving and rollback, to support dynamic program reconfiguration, fault tolerance and others. The paper presents the results of integrating two independently developed tools that combine flexibility and portability. The User-Triggered CheckPointing (UTCP)...
Uploaded on: December 5, 2022 -
1996 (v1)Publication
No description
Uploaded on: December 5, 2022 -
1998 (v1)Publication
The problem of designing complex dependable systems is addressed in this paper. Due to some peculiarities of their application and behavior these are often referred to as reactive systems. Two main paradigms for their design have recently been proposed; we name these paradigms living processes and hidden concurrency, depending on their...
Uploaded on: December 5, 2022 -
2011 (v1)Publication
Grid management has always been a complex issue, especially when Grids are composed by a large number of resources and the e±ciency is a core aspect (i.e. for realizing QoS-based Grids). For this, Grid admin- istration becomes increasingly important, and advanced instrumentation for Grid management is needed. In this paper we present...
Uploaded on: March 31, 2023