1. CPU model and frequency

CPU model and frequency

Home Forums FABRIC General Questions and Discussion CPU model and frequency

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  • #9312
    yoursunny
    Participant

      Is there a way to discover the specific CPU model and frequency of each host machine?
      I tried fablib.list_hosts() but do not see this information listed.

      The use case is:

      • I want to benchmark a simulation program for its wall-clock runtime.
      • Only one instance of the simulation program can run in each VM.
      • I want to run multiple instances in different VMs, but do not want to force all VMs to be placed on the same site or same physical host.
      • For the mean and stdev of the runtime to be meaningful, every VM needs to have the same CPU model.
      • If others want to verify my results, they can also create VMs at physical hosts with the same CPU model, assuming it is still available.

      Thus, I hope there’s a way to discover this information through API, so that I can choose appropriate physical hosts to create the VMs.

      #9322
      Komal Thareja
      Participant

        Hi YoursSunny,

        Thank you for reaching out! This information is not currently exposed through the API. However, it is documented here and may be helpful:
        https://learn.fabric-testbed.net/knowledge-base/fabric-site-hardware-configurations/

        I’ll also raise this with our team to discuss whether we can extend the API to support this in the future.

        Best regards,
        Komal

        #9325
        yoursunny
        Participant

          The “FABRIC Site Hardware Configurations” webpage only says “AMD 7532 or 7543”, but doesn’t specify which site/node has which CPU model. Moreover, I’m seeing EPYC 7H12 at EDC site: it’s the same generation as 7532 but has a higher frequency, which would yield different results for a compute benchmark.

          I see there’s a “FABRIC NVMe Drives” webpage that lists the specific NVMe model for each site. Maybe there could be another webpage for the CPU model as well?

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