3. Create Single VM using HB120rs_v3 Tutorial

Run CMAQ on a single Virtual Machine (VM) using HBv120 and AlmaLinux HPC - Gen2.

• 3.1. Create a HB120rs_v3 Virtual Machine
• 3.2. Login to the Virtual Machine
• 3.3. Mount the disk on the server as /shared using the instructions on the following link:
  • 3.3.1. Find the disk
  • 3.3.2. Format the disk
  • 3.3.3. Mount the disk
  • 3.3.4. Use mount to mount the filesystem
  • 3.3.5. Persist the mount
  • 3.3.6. Edit fstab
  • 3.3.7. Verify the /shared directory
  • 3.3.8. Create subdirectories on /shared
• 3.4. Alternatively, you can create an nvme stripped disk that has faster performance.
• 3.5. Download the Input data from the S3 Bucket
  • 3.5.1. Install aws command line
  • 3.5.2. Install the uncompressed 2018_12US1 input data using the s3 script
  • 3.5.3. Load the openmpi module
  • 3.5.4. Install Cycle Cloud Repo
  • 3.5.5. Install and build netcdf C, netcdf Fortran, I/O API, and CMAQ
• 3.6. Change shell to use tcsh
• 3.7. Create Environment Module for Libraries
• 3.8. Install and Build CMAQ
• 3.9. Copy the run scripts from the repo to the run directory
• 3.10. Run CMAQ interactively using the following command:
  • 3.10.1. Run second job interactively using the following command:
• 3.11. Created another single VM using HBv120_v2 and ran again
• 3.12. Created another VM using the HB120v3 cpus
• 3.13. Verify that the correct number of cpus are installed using lscpu
• 3.14. Timing information
• 3.15. Review performance metrics in the Azure portal
• 3.16. IF your performance is much slower than this, then we recommend that you terminate the resource group and re-build the VM