caa a22 4500 445327200 CHVBK 20180317142724.0 cr unu---uuuuu 170323e20110901xx s 000 0 eng 10.1007/s10723-010-9172-x doi (NATIONALLICENCE)springer-10.1007/s10723-010-9172-x A Robust and Efficient Message Passing Library for Volunteer Computing Environments [Elektronische Daten] [Rakhi Anand, Troy LeBlanc, Edgar Gabriel, Jaspal Subhlok] The objective of this research is to convert ordinary idle PCs into virtual clusters for executing parallel applications. The paper presents VolpexMPI that is designed to enable seamless forward application progress in the presence of frequent node failures as well as dynamically changing networks and node execution speeds. Process replication is employed to provide robustness. The central challenge in the design of VolpexMPI is to efficiently and automatically manage dynamically varying number of process replicas in different states of execution progress. The key fault tolerance technique employed is fully distributed sender based logging. The paper presents the design and an implementation of VolpexMPI. Preliminary results validate that the overhead of providing robustness is modest for applications with a favorable ratio of communication to computation and a low degree of communication. Springer Science+Business Media B.V., 2010 Volunteer computing nationallicence Message passing interface nationallicence Process failures nationallicence Process replication nationallicence Message logging nationallicence Anand Rakhi Department of Computer Science, University of Houston, 77204, Houston, TX, USA aut LeBlanc Troy Department of Computer Science, University of Houston, 77204, Houston, TX, USA aut Gabriel Edgar Department of Computer Science, University of Houston, 77204, Houston, TX, USA aut Subhlok Jaspal Department of Computer Science, University of Houston, 77204, Houston, TX, USA aut Journal of Grid Computing Springer Netherlands 9/3(2011-09-01), 325-344 1570-7873 9:3<325 2011 9 10723 https://doi.org/10.1007/s10723-010-9172-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10723-010-9172-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Anand Rakhi Department of Computer Science, University of Houston, 77204, Houston, TX, USA aut NATIONALLICENCE 700 1- LeBlanc Troy Department of Computer Science, University of Houston, 77204, Houston, TX, USA aut NATIONALLICENCE 700 1- Gabriel Edgar Department of Computer Science, University of Houston, 77204, Houston, TX, USA aut NATIONALLICENCE 700 1- Subhlok Jaspal Department of Computer Science, University of Houston, 77204, Houston, TX, USA aut NATIONALLICENCE 773 0- Journal of Grid Computing Springer Netherlands 9/3(2011-09-01), 325-344 1570-7873 9:3<325 2011 9 10723 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer