Gareth J. Lewis

Workflow-Oriented collaborative grid portals

The paper presents how workflow-oriented, single-user Grid portals could be extended to meet the requirements of users with collaborative needs. Through collaborative Grid portals different research and engineering teams would be able to share knowledge and resources. At the same time the workflow concept assures that the shared knowledge and computational capacity is aggregated to achieve the high-level goals of the group. The paper discusses the different issues collaborative support requires from Grid portal environments during the different phases of the workflow-oriented development work. While in the design period the most important task of the portal is to provide consistent and fault tolerant data management, during the workflow execution it must act upon the security framework its back-end Grids are built on.

The eMinerals collaboratory: tools and experience

Collaboratories provide an environment where researchers at distant locations work together at tackling important scientific and industrial problems. In this paper we outline the tools and principles used to form the eMinerals collaboratory, and discuss the experience, from within, of working towards establishing the eMinerals project team as a functioning virtual organisation. Much of the emphasis of this paper is on experience with the IT tools. We introduce a new application sharing tool.

The collaborative P-GRADE grid portal

Grid portals are increasingly used to provide uniform access to the grid infrastructure. This paper describes how the P-GRADE Grid Portal could be used in a collaborative manner to facilitate group work and support the notion of Virtual Organisations. We describe the development issues involved in the construction of a collaborative portal, including ensuring a consistent view between participants of a collaborative workflow and management of proxy credentials to allow separate nodes of the workflow to be submitted to different grids.

Facilitating Collaboration and Application Sharing with MAST and the Access Grid Development Infrastructures

Multicast Application Sharing Tool (MAST) allows geographically distributed participants to share arbitrary legacy applications. MAST supports scalable group to group collaboration by using Multicast. It is being used within the eMinerals project to augment the Access Grid functionality. In this paper we describe how MAST has taken advantage of the Node Service and Shared Application infrastructure provided by the Access Grid Toolkit to facilitate flexible and convenient sharing of applications within the eMinerals Virtual Organisation.

Multicast application sharing tool – facilitating the eminerals virtual organisation

The eMinerals Virtual Organisation consists of a consortium of individuals affiliated to geographically distributed academic institutions. Collaborative tools are essential in order to facilitate cooperative work within this Virtual Organisation. The Access Grid Toolkit has been widely adopted for this purpose, delivering high quality group-to-group video and audio conferencing. We briefly mention this technology and describe the development of a Multicast Application Sharing Tool designed specifically for this environment.

Computational Grids for Mid-Sized Collaborative Projects: The eMinerals Experience

Grid computing has the potential to revolutionise how small groups of simulation scientists work together to tackle new science problems. In this paper we report how the eMinerals project has developed a small scale integrated compute and data grid infrastructure - the eMinerals minigrid - and developed generic job submission tools that exploit this infrastructure and which enable the science users to also access other grid systems.

Erratum: The eMinerals collaboratory: tools and experience

M.T. DOVE†, M. CALLEJA, R. BRUIN, J. WAKELIN, M.G. TUCKER, G.J. LEWIS, S. MEHMOOD HASAN, V.N. ALEXANDROV, M. KEEGAN, S. BALLARD, R.P. TYER, I. TODOROV, P.B. WILSON, M. ALFREDSSON, G.D. PRICE, C. CHAPMAN, W. EMMERICH, S.A. WELLS, A. MARMIER, S.C. PARKER and Z. DU Several of the figures in this paper did not reproduce correctly. For higher quality figures, please see the online version of this paper at http://www.tandf.co.uk/journals/ titles/08927022.asp