GridSAM OverviewGrid Job Submission And Monitoring Service

What is GridSAM? Funded by the OMII Managed

Programme (Started in Sept, 04)• Client Perspective

• Job Submission and Monitoring Web Service that bridges to existing systems (e.g. Condor, SGE, PBS, UNICORE, …)

• Job described in Job Submission Description Language (JSDL)• OGSA-BES Submission Interface• File input and output staging• Tools and simplified Java API for submission and monitoring

• Developer Perspective• Extensible JobManager API interfacing with existing Distributed

Resource Managers (DRM)• Fault-tolerance and persistence• Can be used as an embedded library • (e.g. in Job Submission Portal, Grid Applications)

BES Compliance

GridSAM developed initially before BES Though as a Web Service for consuming JSDL We Support two web service interfaces

• GridSAM – proprietary interface• BES / HPCP-basic profile interface

• HPC File Staging Profile• HPC Common Case Profile: Activity Credential

Functionality is effectively identical • though syntactically different

JSDL Compliance

Developed alongside the standardization of JSDL Effectively fully compatible with JSDL

• (required elements)• Varies depending on which DRM we backend to

Extra elements for MyProxy certificates• Passed to GridSAM for obtaining an X509 certificate

File Staging Elements present and implemented