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ColdFront installation & Configuration

  • View hpc-toolset-tutorial/coldfront/install.sh to see how ColdFront is installed
  • View hpc-toolset-tutorial/coldfront/local_settings.py to see how ColdFront is configured
  • This is where you'd enable or disable any plugins and set variables for your local installation

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NOTE: you can also install ColdFront using pip: https://pypi.org/project/coldfront/

Login to ColdFront website

  • URL https://localhost:2443/
  • You'll need to login as some of the users for this tutorial to get things started:
  • Login locally as user hpcadmin password: ilovelinux
  • Logout
  • Login locally as user cgray password: test123
  • Logout
  • Login locally as admin:admin
  • Go to Admin interface, Users
  • Click on the hpcadmin user
  • Make this user a 'superuser' by checking the boxes next to "Staff Status" and "Superuser Status" - SAVE
  • Go to Admin interface, User Profiles
  • Click on cgray check "Is pi" SAVE
  • Go back to Admin interface, Click on Resources
  • Add a resource: cluster, cluster name=hpc, attribute: slurm_cluster=hpc
  • Logout
  • Login locally as PI cgray:test123
  • Create a new project
  • Request an allocation for resource: hpc
  • Logout
  • Login locally as hpcadmin
  • Activate the allocation and set the appropriate allocation attributes:
    slurm_account:cgray, slurm_specs:Fairshare=100, slurm_user_specs:Fairshare=parent

ColdFront demo

Run slurm plugin to sync active allocations from ColdFront to slurm

  • Login to the frontend container first, then to the coldfront container:
    ssh -p 6222 hpcadmin@localhost
    ssh coldfront
    cd /srv/www
    source venv/bin/activate
    cd coldfront

  • Let's see what slurm access cgray currently has:
    sacctmgr show user cgray -s list

  • Now dump the slurm account/association info from ColdFront's active allocations:
    coldfront slurm_dump -c hpc -o ~/slurm_dump

  • Let's see what was created:
    ls -al ~/slurm_dump
    cat ~/slurm_dump/hpc.cfg

  • Load the slurm dump into slurm database:
    sacctmgr load file=~/slurm_dump/hpc.cfg
    Type 'Y' to add the new account & associations for cgray

  • Let's look at cgray's slurm account again:
    sacctmgr show user cgray -s list

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Login (or go back) to frontend container

ssh -p 6222 hpcadmin@localhost

  • check slurm associations for cgray again: they should now show access to the hpc cluster sacctmgr show user cgray -s list
    su - cgray
    sbatch --wrap "sleep 600"
    squeue (the job should be running on a node)
    ssh to the allocated node
    ps -ef |grep cgray

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Login to OnDemand website

  • Login to Open OnDemand as cgray (test123) https://localhost:3443/
  • Go to Active Jobs and click on your running job
  • Delete (cancel) the job
  • Submit a job using job template
  • Launch an interactive Job

ColdFront OnDemand demo

Login to Open XDMoD website

  • Login to Open XDMoD https://localhost:4443/
    -- Under the section "Sign in with tutorial:" Click on "Login Here" and enter cgray:test123
  • There is currently no data in XDMoD

XDMoD no data

Login to Open XDMoD container

  • ssh hpcadmin@xdmod
  • In order to see the job data just generated in slurm, we need to ingest the data into Open XDMoD and aggregate it. This is normally done once a day on a typical system but for the purposes of this demo, we have created a script that you can run now: sudo -u xdmod /srv/xdmod/scripts/shred-ingest-aggregate-all.sh

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Note: More information about this script in the Open XDMoD portion of this tutorial

Login to Open XDMoD website

  • Login to Open XDMoD https://localhost:4443/
    -- Under the section "Sign in with tutorial:" Click on "Login Here" and enter cgray:test123
  • You should see the data from the job you just ran
    NOTE: There won't be much info except that we ran a few jobs. More will be presented in the XDMoD portion of the tutorial

XDMoD job data

Adding new users to project & allocation (time permitting)

  • Login to ColdFront as local user csimmons (ilovelinux) https://localhost:2443/
    NOTE: You'll need to use a separate browser or incognito window as you'll already be logged in using the single sign on with XDMoD and OnDemand.
  • Notice there are no projects and no allocations. Logout
  • Login locally as user cgray (test123)
  • Click on project
  • Click on Add User - search for csimmons
  • Add to allocation
  • Login to coldfront container and re-run slurm plug-in commands to add csimmons to slurm associations
    ssh coldfront
  • Let's see what slurm access csimmons currently has:
    sacctmgr show user csimmons -s list
  • Now dump the slurm account/association info from ColdFront's active allocations:
    coldfront slurm_dump -c hpc -o /tmp/slurm_dump
  • Let's see what was created:
    ls -al /tmp/slurm_dump
    cat /tmp/slurm_dump/hpc.cfg
  • Load the slurm dump into slurm database:
    sacctmgr load file=/tmp/slurm_dump/hpc.cfg
    Type 'Y' to add the new association for csimmons
  • Let's look at csimmons's slurm account again:
    sacctmgr show user csimmons -s list

Tutorial Navigation

Next - Open XDMoD
Previous Step - Accessing the Applications
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