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Usage Rates

Compute

Compute resource rate: $0.0123 per SU

Resources:

  • standard compute nodes have 48 cores per node; there are 74 nodes in total
  • big memory nodes have 1.5 TiB of memory (RAM) per node; there are 2 nodes in total
  • GPU nodes have 4 GPU devices (cards) per node; there are 12 nodes in total
Picotte Compute Rates
Resource type Slurm partition SU per unit resource
Std. compute def 1 per core-hour
Big memory bm 68 per TiB-hour
GPU gpu 43 per GPU device-hour

Example: Using all 4 GPU devices on a GPU node for 1 hour consumes 172 SU, for a total charge of $0.0123 * 172 = $2.12

NOTE: all resource usage above is computed based on resources reserved for the actual, not requested, lifetime of a job. Examples:

  1. A job requests 4 GPU devices for 1 hour, but runs only on one GPU device for 1 hour. While the actual usage is 1 GPU-hour, the resources allocated to the job are 4 GPU-hours. The billable amount is 4 GPU-hours = 172 SU. This is because those resources are made unavailable to others.
  2. A job requests 1 GPU device for 4 hours, but completes in 1 hour. The actual usage is 1 GPU-hour. The charge is for 1 GPU-hour = 43 SU.

Persistent Storage

Storage rate: ~~1.48 SU per TiB-hour~~ 1081 SU per TiB-month

To compare to Proteus (see above), this is equivalent to ~~$3.06 per TiB-week~~ $13.30 per TiB-month ~= $3.32 per TiB-week.

Example: storing 5 TiB of data for 1 month → $0.0123 * 1081 * 5 = $66.48

Usage Reports

To view your projects' usage reports, please see: Migrating to Picotte#Usage Reports and Billing Amounts