Cluster Computing

Academic Cluster Hardware Specs
The UB-HPC (Academic) cluster consists of a heterogeneous set of nodes purchased over the years as grants were secured and funds became available.  We p...
Tue, Jun 16, 2020 at 2:30 PM
Academic Cluster Partitions
As of June 30, 2020: The academic (UB-HPC) compute cluster is broken up into several partitions (also known as "queues") that users can reque...
Tue, Jun 16, 2020 at 12:27 PM
Account updates and group name changes - summer 2019
Please see this article for the most up-to-date info on file permissions There are several significant changes to user accounts and groups this summer. ...
Thu, Nov 12, 2020 at 1:00 PM
Advanced Certificate in Computational Science
The University at Buffalo offers an Advanced (Graduate) Certificate program in computational science. The Certificate recognizes a student's special tr...
Wed, Feb 13, 2019 at 3:56 PM
Basic UNIX Commands
The CCR clusters are accessed through a command line interface.  Users must be able to navigate using Linux/UNIX commands.    The CCR Cheat Sheet has...
Mon, Apr 20, 2020 at 10:58 AM
Batch Computing (SLURM Workload Manager)
Please watch this recording on how to use Slurm batch scheduler.)  Batch computing involves users submitting jobs to a scheduler and resource manager ...
Fri, Mar 26, 2021 at 2:48 PM
Changing your default cluster
When users login to one of the CCR front end login nodes using vortex.ccr.buffalo.edu they are logged into one of a pool of login servers.  The majority of ...
Mon, Jun 7, 2021 at 4:21 PM
Checkpointing and Restarting Jobs
Checkpoint saves the processes of a running application to a file.  Later the processes can be restarted from that file.  Since the maximum time a job can r...
Thu, Feb 21, 2019 at 1:24 PM
Clearing Out The Module Cache
If you try to load a module and receive an error that it can't be found, be sure it does exist.  Use the command: module avail [module_name] i.e. ...
Mon, Oct 26, 2020 at 4:53 PM
Compiling Code
Debugging Profiling Checkpointing Compilation of Serial Code Form for compiling a serial code:  compiler -flags filename The available compilers ...
Mon, Aug 17, 2020 at 4:17 PM