Center for High Throughput Computing Status

Center for High Throughput Computing

[HPC] Warning message when using SLURM commands

Investigating - HPC users may receive a message when using SLURM commands, saying, "error: NodeNames=spark-a[237-262] CPUs=128 match no Sockets, Sockets*CoresPerSocket or Sockets*CoresPerSocket*ThreadsPerCore. Resetting CPUs."
This message does not affect jobs. We are investigating.
Nov 26, 2025 - 16:49 CST

About This Site

This page provides information about unplanned downtimes and scheduled maintenance for services offered by the Center for High Throughput Computing

Uptime over the past 90 days. View historical uptime.

High Throughput Computing (HTC) System Operational

90 days ago

99.92 % uptime

Today

Access Points Operational

90 days ago

99.92 % uptime

Today

CHTC Pool Operational

90 days ago

100.0 % uptime

Today

External Pools (OSPool, Campus HTCondor Pools) Operational

90 days ago

100.0 % uptime

Today

Staging and Projects Space Operational

90 days ago

100.0 % uptime

Today

File Transfers Operational

90 days ago

99.71 % uptime

Today

High Performance Computing (HPC) System Operational

90 days ago

99.99 % uptime

Today

90 days ago

99.98 % uptime

Today

Cluster Nodes and Jobs Operational

90 days ago

100.0 % uptime

Today

Central Software Installations Operational

90 days ago

100.0 % uptime

Today

Home and Scratch File Systems Operational

90 days ago

100.0 % uptime

Today

Data Transfer Tools Operational

90 days ago

100.0 % uptime

Today

Globus Endpoint Operational

90 days ago

100.0 % uptime

Today

CHTC Internal Infrastructure Operational

90 days ago

100.0 % uptime

Today

Tiger Cluster Operational

90 days ago

100.0 % uptime

Today

RT Email/Ticket Support System Operational

90 days ago

100.0 % uptime

Today

Operational

Degraded Performance

Partial Outage

Major Outage

Maintenance

Past Incidents

Dec 1, 2025

No incidents reported today.

Nov 30, 2025

No incidents reported.

Nov 29, 2025

No incidents reported.

Nov 28, 2025

No incidents reported.

Nov 27, 2025

No incidents reported.

Nov 26, 2025

Unresolved incident: [HPC] Warning message when using SLURM commands.

Nov 25, 2025

Unable to access learn.chtc.wisc.edu

Resolved - This incident has been resolved.
Nov 25, 15:16 CST

Monitoring - We've implemented a fix and are monitoring the issue.
Nov 25, 14:37 CST

Investigating - Users are unable to log into or access learn.chtc.wisc.edu. When attempting to log in, users are prompted for their password three times before getting a "Permission denied" message. We are investigating.
Nov 25, 14:27 CST

Nov 24, 2025

No incidents reported.

Nov 23, 2025

No incidents reported.

Nov 22, 2025

No incidents reported.

Nov 21, 2025

No incidents reported.

Nov 20, 2025

No incidents reported.

Nov 19, 2025

No incidents reported.

Nov 18, 2025

No incidents reported.

Nov 17, 2025

No incidents reported.