HPC Eco Race

Below you will see the equation we use to create the Compute-Normalized Carbon Emissions value.

For the below math:
    $ \kappa_t $ = Kilowatt Hours (kWh) for t time period
    $ \iota $ = Carbon Intensity of your energy mix (CO2e)
    $ \eta $ = Performance Metric

The formula is: \[ \frac{\kappa_t \times \iota}{\eta} \]

Notes

1. For the time period on kWh we allow 3-6 months. This number needs to be longer enought to even out trends in usage, such as holiday breaks and paper/conference deadlines. 2. We are aware that numbers such as water usage, noise pollution, heat rereuse, etc. are not in the equation. Because HPC is performance focused, we wanted to stay with kWh and the performance metric. We are working on a spider view that will bring these variables into view when a cluster or data center is clicked on.
3. We use the performance metric as the divisor so that the lowest scores will be the most efficient.