Cluster (Total compute cost)
Cluster cost report consists of compute spend, normalized cost per CPU and daily compute cost details views. CAST AI uses public cloud inventory data to calculate cluster compute costs. Custom pricing models are not reflected in our reports at this time.
The report differs depending on the selected date filter, so the information below is split into two sections.
Date filter: This month

Current month spend: Sum of all complete days spend + sum of projected
today's spend 
Monthly forecast: Takes into account all complete days and forecasts
spending until the end of the month using 7day moving average, e.g.,
tomorrow's average spend is the sum of today's spend + the last 6 days divided
by 7. The day after tomorrow is calculated similarly, including
tomorrow's projection. 
Average daily cost: The sum of all complete days' spend divided by the number of
complete days. 
Average cost per CPU:
 Monthly  A monthly cluster compute cost forecast divided by an average number of provisioned CPUs in the period.
 Daily  An average daily cluster compute cost divided by an average provisioned CPUs in the period.
 Hourly  An average hourly cluster compute cost divided by an average provisioned CPUs in the period.

Projected end of the day spend: Current day's total spend (complete hours) +
average spent per hour multiplied by remaining time. This can also be
broken down by ondemand, fallback, and spot spend.
Date filter: Any past date (day or hour)

Compute spend: Actual cluster compute spend in the selected period.

Avg. monthly cost: Actual cluster compute spend extrapolated into full
monthly spend. 
Avg. daily cost: Total cluster compute cost in the selected period
divided by days in the selected period. 
Avg. cost per CPU: Monthly  An avg. monthly cluster compute cost divided
by an average provisioned CPUs in the period. Daily  An avg. daily cluster
compute cost divided by an average provisioned CPUs in the period. Hourly 
An avg. hourly cluster compute cost divided by an average provisioned CPUs in
the period. 
Total compute spend: Total cluster cost in the selected period broken
down by ondemand, fallback, and spot.
Other metrics
Normalized cost per CPU is calculated as follows:

Hourly: Average hourly CPU cost divided by an average hourly provisioned CPUs.

Daily: Average hourly CPU cost divided by an average hourly provisioned CPUs and multiplied by 24.

Monthly: Average hourly CPU cost divided by an average hourly provisioned CPUs and multiplied by 730.
Different cost periods will yield different results, i.e. you can select to view monthly, daily, or hourly CPU cost rate.
Daily compute cost details are calculated similarly (all metrics are calculated per hour):

Normalized CPU: Total day's CPU cost divided by day's provisioned CPUs.

Ondemand: Total day's Ondemand CPU cost divided by day's provisioned Ondemand CPUs.

Spot: Total day's Spot CPU cost divided by day's provisioned Spot CPUs.

Fallback: Total day's Fallback CPU cost divided by day's provisioned Fallback CPUs.
Updated 2 months ago