Core Ethernet network changes on 2020-07-09 at 09:00
Four 40GbE uplinks for a new switch that will support the Pitzer expansion will be installed on Thursday July 9, 2020 at 09:00. This is a routine non-service affecting change.
Pitzer
GAMESS 30Sep2019R2 is available on Owens and Pitzer
GAMESS version 30Sep2019R2 has been installed on Owens and Pitzer. Usage is via the module gamess/30Sep2019R2. For installation details use command: "module help gamess/30Sep2019R2". For help loading an installation, use command: "module spider gamess/30Sep2019R2".
intel mpi Default Version Update to 2019.7
The previous intel mpi default version is 2019.3, however this version had an issue with MPI-IO in home directories, so we updated the default version to 2019.7 on June 15, 2020.
Applications built with intel mpi version 2019.3 should work with version 2019.7 without rebuilding.
We also removed intel mpi version 2019.5 that had another MPI-IO related issue on June 15.
For more detail, visit:
https://www.osc.edu/resources/available_software/software_list/intel_mpi
If you have any questions, please contact OSC Help.
HOWTO: Use Address Sanitizer
Address Sanitizer is a tool developed by Google detect memory access error such as use-after-free and memory leaks. It is built into GCC versions >= 4.8 and can be used on both C and C++ codes. Address Sanitizer uses runtime instrumentation to track memory allocations, which mean you must build your code with Address Sanitizer to take advantage of it's features.
There is extensive documentation on the AddressSanitizer Github Wiki.
HOWTO: Use Cron and OSCusage for Regular Emailed Reports
It is possible to utilize Cron and the OSCusage command to send regular usage reports via email
Cron
It is easy to create Cron jobs on the Cardinal and Pitzer clusters at OSC. Cron is a Linux utility which allows the user to schedule a command or script to run automatically at a specific date and time. A cron job is the task that is scheduled.
Shell scripts run as a cron job are usually used to update and modify files or databases; however, they can perform other tasks, for example a cron job can send an email notification.
System Downtime May 19, 2020
A downtime for all OSC HPC systems is scheduled from 7 a.m. to 5 p.m., Tuesday, May 19, 2020. The downtime will affect the Pitzer, Ruby and Owens Clusters, web portals and HPC file servers. Login services, except for my.osc.edu, will not be available during this time. OSC clients are able to log into my.osc.edu during the downtime but no changes will take place until the downtime is completed.
In preparation for the downtime, the batch scheduler will begin holding jobs that cannot be completed before 7 a.m., May 19, 2020.
Software Refresh - May 2020
OSC will be refreshing the software stack for Owens and Pitzer on May 19, 2020. This will be done in a system-wide downtime. During the software refresh, some default versions will be changed to be more up-to-date. Information about the new default versions, as well as all available versions of each software package will be included on the corresponding OSC software webpage. See https://www.osc.edu/supercomputing/software-list.
