Difference between revisions of "GlueX Containers Meeting, April 6, 2018"
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(Created page with "GlueX Containers Meeting<br> Friday, April 6, 2018<br> 11:30 am EDT<br> JLab: CEBAF Center A110<br> BlueJeans: 968 592 007 === Agenda === * GlueX Containers Meeting, March...") |
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* [[GlueX Containers Meeting, March 30, 2018|Notes from last Containers Meeting]] | * [[GlueX Containers Meeting, March 30, 2018|Notes from last Containers Meeting]] | ||
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+ | === Notes === | ||
+ | |||
+ | Present: Beni Zihlmann, David Lawrence, Richard Jones, Mark Ito, Thomas Britton | ||
+ | |||
+ | * Mark reported a problem using our standard Singularity container on ifarm. Singularity there has auto-bound directory inconsistent with our container. Should not be a fundamental problem, but not understood at present. | ||
+ | * David got around the need for ROOT access to build a Singularity container on the ifarm by routing the build through SingularityHub. The container there is in turn tied to a Docker project (though the singularity build is done on demand at present). And Docker is tied to a GitHub-resident Dockerfile (of course!). | ||
+ | * David was able to run a desktop session in the container via a web browser using a no-vnc server, as well as using VNC using the yes-vnc server. [?] | ||
+ | * Thomas repeated his report, given at the Offline Meeting, on using the OSG for Monte Carlo. Richard has several comments: | ||
+ | ** bringing random trigger files along with the job might be slowing job start-up | ||
+ | ** condor_shadow processes start when the job starts on the remote node | ||
+ | ** Condor supports batch submission. Thomas will explore using this in MCwrapper. | ||
+ | ** batch submission makes it easier to recall thousands of jobs should the need arise | ||
+ | * Mark: update the the CVMFS-resident GlueX software stack has gone swimmingly. | ||
+ | * Mark: no progress with including XROOTD as part of said stack | ||
+ | * we will meet in a week |
Revision as of 20:12, 8 April 2018
GlueX Containers Meeting
Friday, April 6, 2018
11:30 am EDT
JLab: CEBAF Center A110
BlueJeans: 968 592 007
Agenda
Notes
Present: Beni Zihlmann, David Lawrence, Richard Jones, Mark Ito, Thomas Britton
- Mark reported a problem using our standard Singularity container on ifarm. Singularity there has auto-bound directory inconsistent with our container. Should not be a fundamental problem, but not understood at present.
- David got around the need for ROOT access to build a Singularity container on the ifarm by routing the build through SingularityHub. The container there is in turn tied to a Docker project (though the singularity build is done on demand at present). And Docker is tied to a GitHub-resident Dockerfile (of course!).
- David was able to run a desktop session in the container via a web browser using a no-vnc server, as well as using VNC using the yes-vnc server. [?]
- Thomas repeated his report, given at the Offline Meeting, on using the OSG for Monte Carlo. Richard has several comments:
- bringing random trigger files along with the job might be slowing job start-up
- condor_shadow processes start when the job starts on the remote node
- Condor supports batch submission. Thomas will explore using this in MCwrapper.
- batch submission makes it easier to recall thousands of jobs should the need arise
- Mark: update the the CVMFS-resident GlueX software stack has gone swimmingly.
- Mark: no progress with including XROOTD as part of said stack
- we will meet in a week