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High Performance Computing For Science

Author: Douglas Carl

  • What does the TDS NetcdfSubset message “NCSS response too large or Request too big mean?

    THREDDS data servers (TDS) simplify the discovery of scientific data and metadata, but don’t have the performance necessary to serve large datasets to the desktop If you’ve submitted a data request through the NetCDF Subset form and received an NCCS response too large or submitted a data request through the OPeNDAP dataset access form and…

  • Streamlining Connections

    Make sure you have set up your NCCS LDAP Password and verified you can log in to login.nccs.nasa.gov before completing the steps on this page to streamline your connections to NCCS systems. SSH Between Discover Login Nodes Users must set up an SSH key pair and put the public key in their Discover $HOME/.ssh/authorized_keys file to SSH…

  • Reid Ormseth

    Reid Ormseth

    HPC Architect

  • Bruce Pfaff

    Bruce Pfaff

    Lead HPC Systems Engineer

  • File Transfer from a User to ADAPT

    For Command-Line Users NOTE: These instructions are for users who have configured DIRECT MODE access to NCCS systems. In standard bastion configurations, you can run the following from your terminal: You will be asked to provide both your PASSCODE and your NCCS Password for all scp commands. If rsync is available on your client, it might be a…

  • JupyterHub

    NCCS resources on both Discover and ADAPT are now accessible through JupyterHub. Users are now able to run Jupyter notebooks and JupyterLab sessions leveraging the back-end resources they already access. This instructional will give an overview of how to access our JupyterHub instances, and how you can get started running your work through the new…

  • GSFC OPeNDAP Servers and “subset downloading”

    There are three types of OPeNDAP servers running at Goddard (GSFC): The NCCS supports the Global Modeling and Assimilation Office’s (GMAO) OPeNDAP server, as well as assists the Goddard Earth Sciences Data and Information Services Center (GES/DISC) with publishing their data to LLNL ESGF. The major advantage to using OPeNDAP is its ability to select…

  • NCCS On-Premise Containers

    Containers In A Nutshell Containers are small versions of operating systems that are meant to speed up the process of shipping new versions of software. As part of CI/CD, an application can be compiled and run from a container in any stage of the Software Development Life Cycle for testing or production. As part of…

  • Logging-In And Passwords

    PASSWORD CHANGE/RECOVERY If you do not change your NCCS password before your current one expires, the system will prompt you to change your password immediately upon login. Otherwise, you may change your NCCS password by one of two methods: 1. NCCS Password Change Interface.2. Log in to any of the linux-based NCCS Systems and run the…