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How to compute SBUs usage on ECMWF cca/ccb

The accounting currency on ECMWF supercomputer is the SBU (System Billing Unit) The accounting system is fully described here: https://software.ecmwf.int/wiki/display/UDOC/HPC+accounting Basically, " To ensure that computing resources are distributed equitably and to discourage irresponsible use users' jobs are charged " and SBU = P * (ELAPSED_TIME) where P = 50365140 / (3617 * 36 * 86400) is a fixed proportionality factor, adjusted so that the system will deliver 50365140 units per day on a "typical" ECMWF job mix on the ccb system (3617 * 36 is the number of physical CPUs of the cray system and 86400 the number of seconds in a day) ELAPSED_TIME is the elapsed time (real time in seconds) recorded for a job, multiplied by the number of physical CPUs used by the job Examples (copied from ECMWF User Documentation): A serial job using 1 hour (3600 seconds) of elapsed time will be charged about 16.11 SBU. A parallel j...

How to compile the WRF model on ECMWF cca/ccb

#Prerequisites: #- This has been tested with the GNU compiler suite version 4.9.3 #- You should have all the needed libraries and WRF sources in the $PERM directory. Namely: #  * zlib-1.2.7.tar.gz          (This is a compression library necessary for compiling WPS (specifically ungrib) with GRIB2 capability) #  * libpng-1.2.50.tar.gz       (This is a compression library necessary for compiling WPS (specifically ungrib) with GRIB2 capability) #  * WRFV3.8.1.tar.gz           (WRF model) #  * WPSV3.8.1.tar.gz           (WRF Preprocessing System) #  * DTC_upp_v3.1.tar.gz        (Unified PostProcessing system) #------------------------------------------- # 1. Log in to cca (or ccb) #------------------------------------------- ssh -Y cca #----...