Center for High Throughput Computing Status

Center for High Throughput Computing

All Systems Operational

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

97.77 % uptime

Today

Access Points Operational

90 days ago

96.81 % uptime

Today

CHTC Pool Operational

90 days ago

97.06 % uptime

Today

External Pools (OSPool, Campus HTCondor Pools) Operational

90 days ago

98.62 % uptime

Today

Staging and Projects Space Operational

90 days ago

99.91 % uptime

Today

File Transfers Operational

90 days ago

96.44 % uptime

Today

High Performance Computing (HPC) System Operational

90 days ago

99.13 % uptime

Today

90 days ago

98.31 % uptime

Today

Cluster Nodes and Jobs Operational

90 days ago

98.24 % 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

95.21 % uptime

Today

Globus Endpoint Operational

90 days ago

95.23 % uptime

Today

Transfer server Operational

90 days ago

99.45 % uptime

Today

BadgerCompute Operational

90 days ago

95.73 % uptime

Today

BadgerCompute Operational

90 days ago

95.73 % uptime

Today

CHTC Internal Infrastructure Operational

90 days ago

99.75 % uptime

Today

Tiger Cluster Operational

90 days ago

99.62 % uptime

Today

RT Email/Ticket Support System Operational

90 days ago

100.0 % uptime

Today

User App Operational

90 days ago

98.6 % uptime

Today

Operational

Degraded Performance

Partial Outage

Major Outage

Maintenance

Scheduled Maintenance

[HTC] Downtime for townsend-ap Jul `14`, `2026` `06:00`-`10:00` CDT

We will perform maintenance on townsend-ap.chtc.wisc.edu. This machine will be unavailable during this time.
Posted on Jul 10, 2026 - 09:21 CDT

Past Incidents

Jul 10, 2026

No incidents reported today.

Jul 9, 2026

No incidents reported.

Jul 8, 2026

No incidents reported.

Jul 7, 2026

Unable to login to transfer server

Resolved - This incident has been resolved.
Jul 7, 10:57 CDT

Monitoring - We've reset the services and things are looking better.
Jul 6, 13:14 CDT

Investigating - Confirmed user reports of not being able to login to transfer.chtc.wisc.edu.
The underlying issue may also be responsible for Globus issues over the weekend.

We are investigating the issue.
Jul 6, 10:38 CDT

Jul 6, 2026

Monitoring for cooling outages during extreme heat

Resolved - This incident has been resolved.
Jul 6, 10:35 CDT

Monitoring - The infrastructure team is proactively monitoring data center temperatures during this week's extreme heat wave. All services are currently operational.
Jun 29, 13:26 CDT

Jul 5, 2026

No incidents reported.

Jul 4, 2026

No incidents reported.

Jul 3, 2026

No incidents reported.

Jul 2, 2026

No incidents reported.

Jul 1, 2026

No incidents reported.

Jun 30, 2026

[HTC] Idle jobs on ap2001

Resolved - This incident has been resolved.
Jun 30, 10:18 CDT

Monitoring - A fix has been implemented and we are monitoring the results.
Jun 29, 11:46 CDT

Investigating - Users on ap2001 are reporting jobs in unusually long idle states on ap2001. We are currently investigating.
Jun 29, 10:42 CDT

Jun 29, 2026

[HTC] GPU issues on gpulab2001, gpulab2003

Resolved - This incident has been resolved.
Jun 29, 11:47 CDT

Identified - Some jobs running on gpulab2001 or gpulab2003 may fail with an error "CUDA error: failed call to cuInit: CUDA_ERROR_UNKNOWN". We are working to resolve the issue.
Jun 2, 16:53 CDT

Jun 28, 2026

No incidents reported.

Jun 27, 2026

No incidents reported.

Jun 26, 2026

No incidents reported.