HPC system: Teton
The Teton HPC cluster is the successor to Mount Moran. Teton contains several new compute nodes. All Mount Moran nodes have been reprovisioned within the Teton HPC Cluster. The system is available by SSH using hostname teton.arcc.uwyo.edu or teton.uwyo.edu. We ask that everybody who uses ARCC resources cite the resources accordingly. See Citing Teton. Newcomers to research computing should also consider reading the Research Computing Quick Reference.
- 1 Overview
- 2 System Access
- 3 Data Transfer & Access
- 4 Job Scheduling Slurm
- 5 Quick Links
- 6 Extra Help
Teton is a Intel x86_64 cluster interconnected with Mellanox InfiniBand and has a 1.3 PB IBM Spectrum Scale global parallel filesystem available across all nodes. The system requires UWYO two-factor authentication (2FA) for login via SSH. The default shell is BASH with Lmod modules system is leveraged for dynamic user environments to help switch software stacks rapidly and easily. The Slurm workload manager is employed to schedule jobs, provide submission limits, and implement fairshare as well as provide the Quality of Service (QoS) levels for research groups who have invested in the cluster. Teton has a Digital Object Identifier (DOI) (https://doi.org/10.15786/M2FY47) and we request that all use of Teton appropriately acknowledges the system. Please see Citing Teton for more information.
|Type||Series||Arch||Count||Sockets||Cores||Threads / Core||Clock (GHz)||RAM (GB)||GPU Type||GPU Count||Local Disk Type||Local Disk Capacity (GB)||IB Network||Operating System|
|Teton Regular||Intel Broadwell||x86_64||168||2||32||1||2.1||128||N/A||N/A||SSD||240||EDR||RHEL 7.4|
|Teton BigMem GPU||Intel Broadwell||x86_64||8||2||32||1||2.1||512||NVIDIA P100 16G||2||SSD||240||EDR||RHEL 7.4|
|Teton HugeMem||Intel Broadwell||x86_64||8||2||32||1||2.1||1024||N/A||N/A||SSD||240||EDR||RHEL 7.4|
|Teton KNL||Intel Broadwell||x86_64||12||1||72||4||1.5||384 + 16||N/A||N/A||SSD||240||EDR||RHEL 7.4|
|Teton DGX||Intel Broadwell||x86_64||1||2||20||2||2.2||512||NVIDIA V100 32G||8||SSD||7 TB||EDR||Ubuntu 16.04 LTS|
See Partitions for information regarding Slurm Partitions on Teton.
The Teton filesystem is configured with ~160 TB SSD tier for active data and 1.2 PB HDD capacity tier. The system policy engine moves data automatically between pools. The system will automatically migrate data to HDD when the SSD tier reaches 70% used capacity. Teton has several spaces that are available for users to access described in the table below.
- home - /home/username ($HOME)
- - Space for configuration files and software installations. This file space is intended to be small and always resides on SSDs. The /home file space is snapshotted to recover from accidental deletions.
- project - /project/project_name/[username]
- - Space to collaborate among project members. Data here is persistent and is exempt from purge policy.
- gscratch - /gscratch/username ($SCRATCH)
- - Space to perform computing for individual users. Data here is subject to a purge policy defined below. Warning emails will be sent when possible deletions may start to occur. No snapshots.
|Filesystem||Quota (GB)||Snapshots||Backups||Purge Policy||Additional Info|
|home||25||Yes||No||No||Always on SSD|
|project||1024||No||No||No||Aging data will move to HDD|
|gscratch||5120||No||No||Yes||Aging data will move to HDD|
Purge Policy - File spaces within the Teton cluster filesystem may be subject to a purge policy. The policy has not yet been defined. However, ARCC reserves the right to purge data in this area after 30 to 90 days of no access or from creation time. Before performing an actual purge event, the owner of the file(s) will be notified by email several times for files which are subject to being purged.
- Project PIs can purchase additional scratch and/or project space at a cost of $50 one-time setup fee and $100 / TB / year.
- Additionally, researchers can request allocation increases at no cost for scratch and/or project space by submitting proposals that must be renewed every 6 months and include the following information:
- the scientific gain and insights that will be or have been obtained by using the system,
- how data is organized and accessed in efforts to maximize performance and usage.
- To request more information, please contact ARCC.
Certain filesystems exist on different nodes of the cluster where specialized requirements exist. The table below summarizes these specialized filesystems.
|petaLibary||/petalibrary/homes||Only on login nodes|
|/petalibrary/Commons||Only on login nodes|
|Bighorn||/bighorn/home||Only on login nodes, read-only|
|/bighorn/project||Only on login nodes, read-only|
|/bighorn/gscratch||Only on login nodes, read-only|
|node local scratch||/lscratch||Only on compute nodes; Moran is 1 TB HDD; Teton is 240 GB SSD|
|memory filesystem||/dev/shm||RAM based tmpfs available as part of RAM for very rapid I/O operations; small capacity|
The node local scratch or lscratch filesystem is purged at the end of each job.
The memory filesystems can really enhance performance of small I/O operations. If you have localized single node I/O jobs that have very intensive random access patterns, this filesystem may improve performance of your compute job.
The petaLibrary filesystems are only available from the login nodes, not on the compute nodes. A storage space on the Teton global filesystems does not imply storage space on the ARCC petaLibrary or vice versa. For more information about the petaLibrary please see the following link petaLibrary
The Bighorn filesystems will be provided for a limited amount of time in order for researchers to move data to either the petaLibrary, Teton storage or to some other storage media. The actual date that these mounts will be removed is still TBD.
Teton has two login nodes for users to access the Teton cluster. Login nodes are available publicly using the hostname teton.arcc.uwyo.edu or teton.uwyo.edu. SSH can be done natively on MacOS or Linux based operating systems using the terminal and the ssh command. Although X11 forwarding is supported, and if you need graphical support, we recommend using FastX if at all possible. Additionally, you may want to configure your OpenSSH client to support connection multiplexing if you require multiple terminal sessions. For those instances where you have unreliable network connectivity, you may want to use either tmux or screen once you login to keep sessions alive during disconnects. This will allow you to later reconnect to these sessions.
ssh -l USERNAME teton.arcc.uwyo.edu
ssh -Y -l USERNAME teton.arcc.uwyo.edu # For secure forwarding of X11 displays
ssh -X -l USERNAME teton.arcc.uwyo.edu # For forwarding of X11 displays
OpenSSH Configuration File (BSD,Linux,MacOS)
By default, the OpenSSH user configuration file is $HOME/.ssh/config which can be edited to enhance workflow. Since Teton uses round-robin DNS to provide access to two login nodes and requires two-factor authentication, it can be advantageous to add SSH multiplexing to your local environment to make sure subsequent connections are made to the same login node. This also provides a way to shorten up the hostname and access methods for SCP/SFTP/Rsync capabilities. An example entry looks like where USERNAME would be replaced by your actual UWYO username:
Host teton Hostname teton.arcc.uwyo.edu User USERNAME controlmaster auto controlpath ~/.ss/ssh-%r@%h:%p
WARNING: While ARCC allows SSH multiplexing, other research computing sites may not. Do not assume this will always work on systems not administered by ARCC.
Access from Microsoft Windows
ARCC currently recommends that users install MobaXterm to access the Teton cluster. It provides appropriate access to the system with SSH and SFTP capability, allowing X11 if required. The home version of MobaXterm should be sufficient. There is also PuTTY if a more minimal application is desired.
Addtional options include, a cygwin installation with SSH installed or the Windows Subsystem for Linux with an OpenSSH client installed on very recent versions of windows, enabling the OpenSSH client. Finally, a great alternative is to use our FastX capability.
If your currently on the UW campus, you can also leverage FastX to provide you with a more robust remote graphics capability via a installable client for Windows, Mac, or Linux or through a web browser. Navigate to https://fastx.arcc.uwyo.edu and log in with your 2FA credentials. There are also native clients for FastX for Windows, MacOS, and Linux which can be downloaded here. For more information, see the documentation on using FastX.
Teton has several shells available for use. The default is bash]. To change your default shell, please submit the request through standard ARCC request methods.
|csh||/bin/csh||6.18.01||Implemented by TCSH|
- Teton Cluster Filesystem
- ARCC Bighorn (Mt Moran) Filesystem
- ARCC petaLibrary Filesystem
- Required Inputs and Default Values and Limits
Here are some quick links to some additional documentation on using the system.
- Lmod Modules System - Access to software
- Slurm Workload Manager - Scheduling jobs to run
- System Querying - Summary of jobs, nodes, quotas, etc.
- SSH Connection Multiplexing
- Software Multiplexers - Keep your sessions alive
Programming on HPC cluster
- File editors
- Compiling and linking programs (Intel, GNU, and PGI compilers)
- Compiling Applications and Libraries:
- Intel compilers
- GNU/GCC compilers
- PGI compilers
- Scientific computing libraries (Intel MKL, OpenBLAS, GSL, etc.)
- Requesting software builds
- Requesting project accounts
- Requesting user accounts
- Requesting class accounts
- Requesting increased storage allocation