Tech Support Advisory: Read Before Updating Kernel to 7.5
posted on August 27, 2018

When updating the kernel to 3.10.0-862.11.1.el7 through 3.10.0-8.62.11.6.el7, there’s a bug where InfiniBand or Omni-Path cards do not come back up after a kernel update (i.e. they cannot communicate with the rest of the IB/OPA network). This will be accompanied by the message “failed to modify QP to RTR: -22” in either dmesg or /var/log/messages. Diagnostic Steps Run […]

Get Answers to Your HPC Questions in our Knowledge Base
posted on August 15, 2017

Have questions about high performance computing? Check Advanced Clustering’s HPC Knowledge Base to see if we have the answers you seek. If we don’t, submit  your HPC questions to our team of HPC hardware engineers. Our HPC experts has been compiling articles for our HPC Knowledge Base for the past 17+ years to guide you through everything […]

Backing Up Your HPC Cluster
posted on March 29, 2016

Advanced Clustering Technologies offers tech tips written by our engineers for the benefit of the HPC community. This week, we’d like to share our tips for backing up your cluster in honor or World Backup Day on March 31. Sometimes overlooked, making backups of your data is important for any cluster owner. Click here to […]

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