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• Hardening
  ...g or command injecting) shell alias within the context of the unprivileged user account you're using sudo from. ...ore easy to check during blackbox security scans, without even requiring a user account on the machine to be scanned. A potential downside is that it will
  954 bytes (140 words) - 13:42, 17 November 2022
• Parameters and Limits (Admin Guide)
  ...ticle talks about setting some Linux kernel parameters (sysctl values) and user limits specific to clusters. = User Limits =
  2 KB (348 words) - 20:14, 9 December 2020
• Python/pip
  [[Category:Basics]][[Category:HPC-User]] You can check the used Version with:
  3 KB (460 words) - 15:52, 3 September 2019
• Software Container (Admin Guide)
  | User Namespaces | user software stack for HPC, high-quiality Code
  5 KB (673 words) - 20:18, 9 December 2020
• Benchmarks
  [[Category:HPC-User]] ...and monitor the progress of fixing them. They are also used by vendors to check if the performance requested by the customer is actually achieved. An impor
  2 KB (323 words) - 15:40, 3 September 2019
• Fastx (Admin Guide)
  ...s well as GNOME tend to consume many hardware resources and thus limit the user experiences as well as the scalability. ...will be checked out by the server (not the client) during the login of the user
  10 KB (1,602 words) - 20:09, 9 December 2020
• FAQ Batch Jobs
  [[Category:HPC-User]] To put it another way: with the resource requirements of all user jobs, the scheduler needs to play kind of “multidimensional tetris”. At
  5 KB (875 words) - 02:46, 20 January 2020
• Two-Factor Authentication with OTP (Admin Guide)
  Login to the head nodes of HPC systems is often just secured by simple (user-generated) passwords, which are also often identical for services like e-ma ...in again later (with password and OTP). Therefore, on the first login, the user is presented some information and then logged out again.
  7 KB (1,152 words) - 20:20, 9 December 2020
• CMake
  [[Category:HPC-User]] ...C, $CXX envvars), CMake not always choose the one you would assume. Always check all components found by CMake about this is the version you would like to u
  2 KB (340 words) - 10:23, 12 June 2020
• Ssh keys
  ...sh]] to the server, it should use the key and instead of prompting for the user's pass'''word''', prompt for the pass'''phrase''' of the key (if you chose ...till asks for your password, something went wrong. In that case you should check, whether the '''authorized_keys''' file really contains the key by executin
  4 KB (636 words) - 15:51, 3 September 2019
• Fail2ban (Admin Guide)
  It is transparent to the user, as long as the correct credentials are used to log in. With wrong credenti ** Check <code>man jail.conf</code> for more details
  5 KB (726 words) - 19:57, 9 December 2020
• Administration tips and tricks
  Try to "turn the tables" and check whether your [[HPC-Dictionary#Shared filesystems|shared filesystem]] suppor In the case of SpectrumScale (GPFS), you can define "user callbacks" which are triggered ''locally on each node'' at certain events.
  2 KB (373 words) - 15:43, 25 May 2020
• BeeOND (Admin Guide)
  ...As a prequisite, you need an empty partition on each of the nodes. From a user’s perspective, a new parallel filesystem is created each time a job start (Only create the device if a user requests all CPU cores.)
  4 KB (644 words) - 19:47, 9 December 2020
• File Transfer
  : <u>Solution</u>: put such commands only ''after'' a check whether a shell is in fact an interactive one, like: $ rsync -azvh -e ssh /my/source/directory/ user@123.123.123.123:/my/destination/directory
  4 KB (707 words) - 09:55, 7 September 2020
• Resource planning
  [[Category:HPC-User]] ...of a large array will require 4 times the memory. It is again important to check the hardware limitations, e.g. maximum memory per node.
  3 KB (478 words) - 10:27, 5 September 2019
• Torque
  [[Category:HPC-User]] You can check the current status of your submitted jobs and their job ids with the follow
  6 KB (955 words) - 10:30, 5 September 2019
• Job efficiency
  [[Category:HPC-User]] If [[Performance Monitoring]] is available, one can check the measured resource utilization for unexpected characteristics.
  9 KB (1,285 words) - 18:21, 1 March 2024
• How-to-Contribute
  ...ou find that your page requires basics that cannot yet be found in the HPC-User or Basics section please feel free to add it there as a separate page. Keep ...l files, etc. It may also be helpful to simply browse through the wiki and check the source code of the other pages.
  5 KB (795 words) - 10:11, 5 May 2020
• Scheduling Basics
  In contrast to the login nodes (for compiling and testing user software) and their interactive usage, these compute nodes are usually not This requires the user to ask the scheduler for time and memory resources and to specify the appli
  5 KB (881 words) - 15:15, 3 November 2019
• Streaming scientific software with EESSI
  [[Category:HPC-User]] It is based on the Cern VM File System (CVMFS), which is a read-only (from a user-perspective) file system for software distribution.
  6 KB (910 words) - 15:19, 12 April 2024

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