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**[[cluster: | **[[cluster: | ||
- | {{: | ||
+ | ==== ==== | ||
+ | |||
+ | {{: | ||
===== Cluster: sharptail ===== | ===== Cluster: sharptail ===== | ||
+ | From the Blue Sky Studios donations of hardware we have created a high performance compute cluster. Named sharptail. | ||
+ | |||
+ | Because of limitations in the hardware, cluster sharptail can only be reached by first establishing an SSH session with petaltail or swallowtail, | ||
+ | |||
+ | The cluster consists entirely of blades, 13 per enclosure. Currently 5 enclosures are powered. | ||
+ | |||
+ | Like petaltail and swallowtail, | ||
+ | |||
+ | The cluster is created, maintained and managed with **[[http:// | ||
+ | |||
+ | The entire cluster is on utility power with no power backup for any blade, or the installer node sharptail. | ||
+ | |||
+ | |||
+ | The operating system is **[[http:// | ||
+ | |||
+ | The scheduler is **[[http:// | ||
+ | |||
+ | All nodes together add 128 job slots to our HPC environment. | ||
+ | |||
+ | As such, we will start to implement a soft policy that the Infiniband switch is dedicated to jobs that invoke MPI parallel programs. | ||
+ | |||
+ | There are still some minor configurations that need to be implemented but you are invited to put cluster sharptail to work. | ||
+ | |||
+ | This page will be updated with solutions to problems found or questions asked. | ||
+ | |||
+ | All your tools will remain on **[[http:// | ||
+ | |||
+ | ===== Questions ===== | ||
+ | |||
+ | **Are the LSF and Lava scheduler working togther?** | ||
+ | |||
+ | No. They are two physically and logically individual cluster. | ||
+ | |||
+ | **How can i determine if my program or the program i am using will work on sharptail? | ||
+ | |||
+ | When programs compile on a certain host, they link themselves against system and sometimes custom libraries. If they are missing on another host, the program will not run. To check, use ' | ||
+ | |||
+ | < | ||
+ | [hmeij@sharptail ~]$ ldd / | ||
+ | libpthread.so.0 => / | ||
+ | libdl.so.2 => / | ||
+ | libutil.so.1 => / | ||
+ | libm.so.6 => / | ||
+ | libc.so.6 => / | ||
+ | / | ||
+ | </ | ||
+ | If one or more libraries are missing, you could run this command on petaltail or swallowtail, | ||
- | ===== ===== | ||
\\ | \\ | ||
**[[cluster: | **[[cluster: |