Difference: GRID (1 vs. 7)

Revision 72008-03-14 - AntonisZisimos

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Grid Computing

Grids enable the sharing, selection, and aggregation of a wide variety of geographically distributed computational resources (such as supercomputers, compute clusters, storage systems, data sources, instruments, people) and present them as a single, unified resource for solving large-scale compute and data intensive applications. This idea is analogous to the electric power network (grid) where power generators are distributed, but the users are able to access electric power without bothering about the source of energy and its location.

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 Our part in Grid4All, is to research and develop DFS, a storage substrate that will support Grid4All VOs with file and storage aggregation and VO-aware access to them.

GREDIA

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>		CSLab also participates in the GREDIA European Project. Grid technology has achieved significant advances in the past few years with a plethora of prestigious organisations contributing to middleware that opens the horizons for new exploitation opportunities. However, this potential exploitation has not yet been seen to materialise in emerging applications. The use of Grid technology is still confined mainly within scientific applications, developed by scientific organisations, being experts in Grid principles. The majority of IT application developing organisations is still afraid to delve into the use of Grid technologies, as these still sound new and remote to them. GREDIA (FP6 34363 - Grid enabled access to rich media content) will address this problem with the provision of a Grid application development platform.
 

GridTorrent

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>		GridTorrent is an implementation of the popular BitTorrent protocol designed to interface and integrate with well-defined and deployed Data Grid components and protocols (e.g. GridFTP, RLS). Just like BitTorrent, GridTorrent is based on peer-to-peer techniques, that allow clients to download files from multiple sources while uploading them to other users at the same time, rather than obtaining them from a central server.

Revision 62008-03-11 - VangelisKoukis

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META TOPICPARENT name="P2P"
 

Grid Computing

Grids enable the sharing, selection, and aggregation of a wide variety of geographically distributed computational resources (such as supercomputers, compute clusters, storage systems, data sources, instruments, people) and present them as a single, unified resource for solving large-scale compute and data intensive applications. This idea is analogous to the electric power network (grid) where power generators are distributed, but the users are able to access electric power without bothering about the source of energy and its location.

Revision 52008-03-11 - VangelisKoukis

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META TOPICPARENT name="P2P"

Grid Computing

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<		Grids enable the sharing, selection, and aggregation of a wide variety of geographically distributed computational resources (such as supercomputers, compute clusters, storage systems, data sources, instruments, people) and presents them as a single, unified resource for solving large-scale compute and data intensive applications. This idea is analogous to electric power network (grid) where power generators are distributed, but the users are able to access electric power without bothering about the source of energy and its location.
>
>		Grids enable the sharing, selection, and aggregation of a wide variety of geographically distributed computational resources (such as supercomputers, compute clusters, storage systems, data sources, instruments, people) and present them as a single, unified resource for solving large-scale compute and data intensive applications. This idea is analogous to the electric power network (grid) where power generators are distributed, but the users are able to access electric power without bothering about the source of energy and its location.
  Grid Computing is a very broad research area, as many different technologies are combined together to create Grid environments that target different needs.
Changed:
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<		Our research efforts focus on using P2P technologies to establish solution for storing, indexing and transferring data.
>
>		Our research efforts focus on using P2P technologies to establish solutions for storing, indexing and transferring data.
 

Grid4All

CSLab participates in the Grid4All European Project. Grid4All embraces the vision of a democratic Grid as a ubiquitous utility whereby domestic users, small organisations and enterprises may draw on resources on the Internet without having to individually invest and manage computing and IT resources.

Revision 42008-03-07 - GeorgiosTsoukalas

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META TOPICPARENT name="P2P"

Grid Computing

Grids enable the sharing, selection, and aggregation of a wide variety of geographically distributed computational resources (such as supercomputers, compute clusters, storage systems, data sources, instruments, people) and presents them as a single, unified resource for solving large-scale compute and data intensive applications. This idea is analogous to electric power network (grid) where power generators are distributed, but the users are able to access electric power without bothering about the source of energy and its location.

Changed:
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<		Our lab participates in the Grid4All European Project. Grid4All embraces the vision of a democratic Grid as a ubiquitous utility whereby domestic users, small organisations and enterprises may draw on resources on the Internet without having to individually invest and manage computing and IT resources.
>
>		Grid Computing is a very broad research area, as many different technologies are combined together to create Grid environments that target different needs. Our research efforts focus on using P2P technologies to establish solution for storing, indexing and transferring data.
 
Changed:
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<		As part of our involvement to Grid4All, we have developed DFS. DFS is our proposal for a data storage substrate. In our design, we clearly separate File and Storage resources. The storage management is provided by the Virtual Block Store (VBS), which is an independent layer, but one that uses the generic interfaces and protocols of the DFS.
>
>

Grid4All

CSLab participates in the Grid4All European Project. Grid4All embraces the vision of a democratic Grid as a ubiquitous utility whereby domestic users, small organisations and enterprises may draw on resources on the Internet without having to individually invest and manage computing and IT resources. Grid users are organised in Virtual Organisations (VOs). VOs allocate resources from their users or external providers and make them available to users' applications. Our part in Grid4All, is to research and develop DFS, a storage substrate that will support Grid4All VOs with file and storage aggregation and VO-aware access to them.
 
Deleted:
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DFS Principles

The DFS Architecture is based on the following principles:
  • Each DFS User is identified by a cryptographic certificate. DFS Users are uniquely identified by their cryptographic certificate. With this certificate, they can be named, authenticated, authorized, accounted, attributed an action, associated with an entity or with each other. User throughout this text means DFS User.
  • Any resource is identified by an authority DFS User. Any resource and policy concerning resources is identified by and submitted to the unconditional authority of a unique DFS User.
  • Any action upon a resource has an agent DFS User. The agent of any action concerning resources is ultimately attributed to a single DFS User. This facilitates the accountability of users for their actions and simplifies resource access control.
  • Any action upon a resource is a transaction between an agent user and an authority user. Any resource manipulating action is equivalent to a transaction between the agent of the action and the authority of the resource. The agent must acquire the permission of the authority in order to successfully perform the action.
 \ No newline at end of file
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GREDIA

GridTorrent

Revision 32008-03-06 - GiorgosVerigakis

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META TOPICPARENT name="P2P"

Grid Computing

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  • Any resource is identified by an authority DFS User. Any resource and policy concerning resources is identified by and submitted to the unconditional authority of a unique DFS User.
  • Any action upon a resource has an agent DFS User. The agent of any action concerning resources is ultimately attributed to a single DFS User. This facilitates the accountability of users for their actions and simplifies resource access control.
  • Any action upon a resource is a transaction between an agent user and an authority user. Any resource manipulating action is equivalent to a transaction between the agent of the action and the authority of the resource. The agent must acquire the permission of the authority in order to successfully perform the action.
Deleted:
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Publications

  • A. Chazapis, G. Tsoukalas, G. Verigakis, K. Kourtis, A. Sotiropoulos and N. Koziris, "Global-scale peer-to-peer file services with DFS," in Proceedings of the 8th IEEE/ACM International Conference on Grid Computing (Grid 2007), Austin, TX, USA, September 2007 [pdf]

Revision 22008-03-06 - GiorgosVerigakis

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META TOPICPARENT name="P2P"

Grid Computing

Added:
>
>		Grids enable the sharing, selection, and aggregation of a wide variety of geographically distributed computational resources (such as supercomputers, compute clusters, storage systems, data sources, instruments, people) and presents them as a single, unified resource for solving large-scale compute and data intensive applications. This idea is analogous to electric power network (grid) where power generators are distributed, but the users are able to access electric power without bothering about the source of energy and its location.
 
Added:
>
>		Our lab participates in the Grid4All European Project. Grid4All embraces the vision of a democratic Grid as a ubiquitous utility whereby domestic users, small organisations and enterprises may draw on resources on the Internet without having to individually invest and manage computing and IT resources.
 
Deleted:
<
<		-- ArisSotiropoulos - 06 Mar 2008
 \ No newline at end of file
Added:
>
>		As part of our involvement to Grid4All, we have developed DFS. DFS is our proposal for a data storage substrate. In our design, we clearly separate File and Storage resources. The storage management is provided by the Virtual Block Store (VBS), which is an independent layer, but one that uses the generic interfaces and protocols of the DFS.

DFS Principles

The DFS Architecture is based on the following principles:
  • Each DFS User is identified by a cryptographic certificate. DFS Users are uniquely identified by their cryptographic certificate. With this certificate, they can be named, authenticated, authorized, accounted, attributed an action, associated with an entity or with each other. User throughout this text means DFS User.
  • Any resource is identified by an authority DFS User. Any resource and policy concerning resources is identified by and submitted to the unconditional authority of a unique DFS User.
  • Any action upon a resource has an agent DFS User. The agent of any action concerning resources is ultimately attributed to a single DFS User. This facilitates the accountability of users for their actions and simplifies resource access control.
  • Any action upon a resource is a transaction between an agent user and an authority user. Any resource manipulating action is equivalent to a transaction between the agent of the action and the authority of the resource. The agent must acquire the permission of the authority in order to successfully perform the action.

Publications

  • A. Chazapis, G. Tsoukalas, G. Verigakis, K. Kourtis, A. Sotiropoulos and N. Koziris, "Global-scale peer-to-peer file services with DFS," in Proceedings of the 8th IEEE/ACM International Conference on Grid Computing (Grid 2007), Austin, TX, USA, September 2007 [pdf]

Revision 12008-03-06 - ArisSotiropoulos

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Added:
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META TOPICPARENT name="P2P"

Grid Computing

-- ArisSotiropoulos - 06 Mar 2008

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