Compared to 2023 the SBU cost of the same job in 2024 will be ~10% ~10.8% less .
Expand
title
SBU formula in 2023
Panel
SBU = P * N * T
where:
P = 470410408 / (8098 * 128 * 86400)
is a fixed proportionality factor, adjusted so that the entire Atos system will deliver 470,410,408 SBU per day on a "typical" ECMWF job mix on the HPC system (8098 * 128 is the total number of physical cores used to run batch jobs and 86400 the number of seconds in a day).
N
Is the number of (physical) cores allocated to a job.
T
is the elapsed time (real time in seconds) recorded for a job.
Examples:
A serial job using 1 hour (3600 seconds) of elapsed time will be charged about 18.91 SBU.
A parallel job requesting 2 nodes, running for 3 hours elapsed time will be charged 14522.43 SBU.