HPC Configuration details to run WRF-ARW four times daily for 72 hour forecast generation?

Malleswararao Maguluri @Malleswararao-Maguluri

23 January 2019 1 7K Report

Hi,

Can anyone please specify the HPC or server configuration details (including price, area and other factors into account) to run WRF-ARW over India (50 E to 110E and 10S to 45N) at least at 9 km resolution daily four times to generate 72hrs forecast. Please specify which compiler will satisfy the needs. If possible with gcc/gfortran, what is the minimum HPC or server configuration required including the price?

Thanks & Regards,

Malleswararao M

Gemechu Fanta Garuma

At 9km for the mentioned lat-lon, you will have around 672x720 grids. This requires not less than 200 cpus daily for one simulation.So, to run 4 simulations in parallel you may need more than 1000 cpus. In WRF you can use DMPAR "Distributed memory parallelism" that runs accross nodes. DMPAR uses MPI unlike the SMPAR, "shared memory parallelism" which uses OpenMPI. Concerning the prices, it varies from one vendor to the other and you can check one which you want online.

Good luck,

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