Welcome to the HPC web

This is a wiki home for high-performance computing at the NRAO. The area is still undergoing organizational changes but content in the Categories section is either actively maintained or will exist in coming months.

Categories

Older Areas

The following areas are not under active development but may still have useful information.

Recently changed topics across the HPC web

Listing the twelve most recent changes...

Web Topic SummarySorted ascending Date - User
HPC UsnoDifxLusterOSInstall2 BGFS Installation The BGFS hosts were installed by vendor. They were then modified by us to meet the most pressing requirements (i.e., "critical" and "high" find... 2020-12-11 - 14:36 - JimJacobs
HPC UsnoDifxClientOSInstall2 Client (SWC) Installation The initial client installation was performed using the hard disk drive that came with SWC 001. The host was booted via PXE boot and the... 2020-12-11 - 14:40 - JimJacobs
HPC UsnoDifxNetworking2 Contents Networking As of this writing the plan is to fold the new correlator into the existing correlator network layout. This will facilitate keeping the two i... 2020-12-10 - 16:51 - JimJacobs
HPC UsnoDifxEnvSensor2 Environment Monitor The environment monitor is positioned to read the temperature and humidity via a sensor mounted above the rack containing the correlator nodes... 2021-01-11 - 16:26 - JimJacobs
HPC UsnoHostAliases2 Host SSH Aliases In root's .bashrc are defined a number of aliases to make it a bit quicker to do commands to a single host. Basically it aliases the host name wi... 2020-12-17 - 13:05 - JimJacobs
HPC UsnoDifxKVM2 KVM Console/Switchs (jhj 1/15/21) Currently two of the KVM retained from the old correlator are not on the net. These are the KVM in the second rack of SWCs and... 2021-01-15 - 14:06 - JimJacobs
HPC UsnoDifxLogging2 Logging Rsyslog Server 1 runs rsyslogd via the systemd rsyslog.service; the main configuration for the rsyslod is /etc/rsyslog.conf. DHCP Logging DHCPD messages... 2020-12-11 - 13:00 - JimJacobs
HPC UsnoDifxNagios2 Nagios Nagios is a watchdog daemon that can be configured to check on various properties of a computer system and issue warnings and/or alarms if one of the prope... 2020-12-11 - 18:05 - JimJacobs
HPC UsnoPingDiskless2 Ping Diskless The custom python3 utility ping diskless was originally designed to ping the SWCs to watch them through the reboot cycle. It has evolved such that ... 2020-12-14 - 18:32 - JimJacobs
HPC UsnoDifxNTP2 Time Service Overview Time services is provided primarily by server 1 using the chronyd daemon. The configuration file for chronyd is /etc/chrony.conf. Service... 2020-12-10 - 16:52 - JimJacobs
HPC UsnoMaintenanceLog2 USNO Maintenance Log 2 This log page allows significant maintenance/administration events to be logged for future use. The goal is to record information that migh... 2021-02-01 - 13:50 - JimJacobs
HPC UsnoDifxOsPatch2ChecklistItemState WARNING! THIS TOPIC IS GENERATED BY System.ChecklistPlugin PLUGIN. DO NOT EDIT THIS TOPIC (except table data)! Back to the checklist topic UsnoDifxOsPatch2. *con... 2021-03-02 - 18:10 - MarkWainright

More extensive change lists are available via the WebChanges topic.

HPC Web Utilities

Topic revision: r23 - 2018-10-16, MikeHatz
This site is powered by FoswikiCopyright © by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
Ideas, requests, problems regarding NRAO Public Wiki? Send feedback