Closing the Gap between Cloud Providers and Scientific Users - Cloud Computing with e-Science Applications - page 115

6

Closing the Gap between
Cloud Prov iders and Scientific Users

David Susa, Harold Castro, and Mario Villamizar

CONTENTS
Summary .............................................................................................................. 116
6.1 Introduction ................................................................................................ 116
6.2 What Do Scientific Apps Require? .......................................................... 117

6.2.1 Flexibility ........................................................................................ 117
6.2.2 Platform Maintenance ................................................................... 117
6.2.3 High-Performance Computing .................................................... 118
6.2.4 Data Communication .................................................................... 118
6.2.5 Costs ................................................................................................. 118
6.2.6 Security and Reliability ................................................................ 119

6.3 Related Work .............................................................................................. 119

6.4 e-Clouds Architecture ............................................................................... 120

6.4.1 Overview ......................................................................................... 120
6.4.2 e-Clouds Back End ......................................................................... 122

6.4.2.1 Data Management ........................................................... 122
6.4.2.2 Resource Manager .......................................................... 123
6.4.2.3 Queues for Asynchronous and Scalable
Communications ............................................................. 123
6.4.2.4 Agent in Processing Machines ...................................... 123
6.4.2.5 Billing ................................................................................ 123

6.4.3 e-Clouds Front End ........................................................................ 124

6.4.3.1 For Researchers ............................................................... 124

6.4.3.2 For e-Clouds Administrators ........................................ 124

6.5 e-Clouds Implementation ......................................................................... 124

6.5.1 e-Clouds Front End ........................................................................ 124

6.5.2 e-Clouds Back End ......................................................................... 125

6.5.2.1 Data Management ........................................................... 125
6.5.2.2 Queue Messaging ............................................................ 126
6.5.2.3 App Install and Configuration ...................................... 128
6.5.2.4 Scheduling ....................................................................... 131

6.5.3 e-Clouds IaaS Provider ................................................................. 133

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