the ngs portal
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http://www.ngs.ac.ukhttp://www.grid-support.ac.uk
http://www.eu-egee.org/http://www.pparc.ac.uk/http://www.nesc.ac.uk/
The NGS Portal
Guy Warner
NeSC Training Team
Induction to Grid Computing and the National Grid Service, Oxford University Computing Services, 5th-6th July 2005
The Portalhttps://portal.ngs.ac.uk
Induction to Grid Computing and the National Grid Service, Oxford University Computing Services, 5th-6th July 2005
A Problem!
• How do I authenticate myself to the Grid Services?
Grid Services
Command Line Usage of Grid Services
grid-proxy-init
Induction to Grid Computing and the National Grid Service, Oxford University Computing Services, 5th-6th July 2005
A Problem!
Grid Services
Portal Usage of Grid Services
Portal
??
Induction to Grid Computing and the National Grid Service, Oxford University Computing Services, 5th-6th July 2005
Solution: “MyProxy”
• Myproxy allows you to store a long-lived proxy in a “MyProxy repository” and derive a proxy certificate when needed.
• Allows you to:– Interact with a grid from many machines
• And you realise that you must NOT, EVER leave your certificate where anyone can find and use it.
– Use a portal, and delegate to the portal the right to act on your behalf (by logging in to an account that can make a proxy certificate for you)
– Run jobs that might last longer than the lifetime of a short-lived proxy
Induction to Grid Computing and the National Grid Service, Oxford University Computing Services, 5th-6th July 2005
Grid Authentication with MyProxy
Grid Services
MyProxyServer
NGS Portal
UI
A WorkStation
Web Browser1:
2: Any Grid Service
6: output
0: grid-proxy-init
myproxy-init
3: myproxy-get-delegation
4: execution
5: output
Induction to Grid Computing and the National Grid Service, Oxford University Computing Services, 5th-6th July 2005
• Go to https://portal.ngs.ac.uk
• When submitting jobs:– Use grid-data.man.ac.uk– jobmanager: pbs– Provide a file for standard error– Use the extension .txt for standard output and error
files.– See output by Single Host File Transfer from
grid-data.man.ac.uk
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