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Supercomputer:
A rolling reboot is scheduled to remediate a ptrace vulnerability and safely restore debugger functionalit
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This document serves as a knowledge base for properly managing and diagnosing threading issues in user jobs. It focuses on OpenMP, Intel Math Kernel Library (MKL), and common thread-related misuse at OSC.
Understanding Threading with OpenMP and MKL
Intel MKL is widely used in HPC for linear algebra, FFTs, and statistical routines. MKL is multithreaded by default, which can significantly improve performance but only when correctly configured.
Pitzer
While OSC has upgraded the Pitzer cluster to RHEL 9, you may encounter difficulties when migrating jobs from RHEL 7 to the new system. To help you continue your research, we provide a containerized RHEL 7 environment on Pitzer RHEL 9. This container replicates the original RHEL 7 system and software environment used on Pitzer.
Pitzer
Compilers
The Pitzer cluster (on RHEL 9) supports C, C++, and Fortran programming languages. The available compiler suites include Intel, oneAPI, and GCC. By default, the Intel development toolchain is loaded. The table below lists the compiler commands and recommended options for compiling serial programs. For more details and best practices, please refer to our compilation guide.
Pitzer
The Pitzer RHEL 9 cluster (hereafter referred to as "Pitzer") is now running on Red Hat Enterprise Linux (RHEL) 9, introducing several software-related changes compared to the RHEL 7 environment used on the Pitzer. These updates provide access to modern tools and libraries but may also require adjustments to your workflows.
Ascend, Cardinal, Pitzer
Intel's implementation of the Message Passing Interface (MPI) library. See Intel Compilers for available compiler versions at OSC.
Cardinal
Ollama is an open-source inference server for large language models (LLMs). This module also includes Open-WebUI, which provides an easy-to-use web interface.
Ascend, Cardinal, Pitzer
Ruby is a dynamic, open source programming language with a focus on simplicity and productivity.
Availability and Restrictions
Versions
The following versions of ruby are available on OSC clusters:
Options:
- Duo Mobile: You can install Duo Mobile on your smartphone or tablet. It will give you two ways to authenticate either through DUO push notification or DUO mobile passcode
- Text Message Passcode: You can register your phone and request a passcode via text message. It will send you a single use passcode via text message
- Phone Call: You can register your phone and request a phone call. It will call you and provide a single use passcode
