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The accounting on the HPCF is currently based on the total elapsed time for the cores allocated to serial or parallel batch jobs. To reflect the current system configuration and performance the formula to compute SBU will change changed on 1 January 2024 to:
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SBU = P * N * T |
where:
P = 424074479 / (8098 8090 * 128 * 86400) | is a fixed proportionality factor, adjusted so that the entire Atos system will deliver 424,074,479 SBU per day on a "typical" |
N | Is the number of (physical) cores allocated to a job. |
T | is the elapsed time (real time in seconds) recorded for a job. |
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Compared to 2023 the SBU cost of the same job in 2024 will be ~10% is ~10.8% less .
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where:
Examples:
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Member States are allocated computing resources for their own purposes according to the Council guidelines on distribution of computer resources. Member State Computing Representatives may distribute those resources among projects registered at ECMWF as they feel appropriate. Should a redistribution of resources between the projects of a Member State be required during the course of a year, this may be carried out by the Member State Computing Representative or another designated "privileged user" (see section Administration of project accounts in the Member States below).
Special Projects
Special Projects are experiments or investigations of a scientific or technical nature undertaken by one or more Member States, likely to be of interest to the general scientific or technical community. In the spring of each year, Directors of national meteorological services are invited to submit requests for Special Project resources to be available for use in the following year. Requests are considered by the Council at its winter session, in conjunction with recommendations from the Scientific Advisory Committee. Since Special Project accounts are separate from Member State resources, their account administration is performed by ECMWF.
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