STREAM project
SponTaneous REArrangment of ice Motion (STREAM)
Spontaneous formation of an internal shear band in a slab of ice flowing over rough topography resulting in englacial sliding. The arrows’ colour scale reflects the flow acceleration in the centre of the channelised streaming ice.
What mechanisms control the spontaneous rearrangement of ice motion in ice sheets?
To answer this important question and shed light on better understanding the formation of ice streams in Greenland and Antarctica, a GPU4GEO team composed of Ludovic Räss (PI) and Ivan Utkin (co-PI) from ETHZ Glaciology group, and co-PI Julia Samaroo from the Julia lab at MIT got granted 5'000'000 GPU-hours (equivalent to 80'000'000 core-hours) on the LUMI-G machine, the European flagship supercomputer and number 3 in the World (Top500 list).
The grant follows from the first EuroHPC JU Extreme Scale Access call and targets the European LUMI-G pre-exascale Tier-0 supercomputer.
The EuroHPC STREAM project represents a unique opportunity to unleash the Julia language by running FastIce.jl, the next generation full-Stokes and thermo-mechanically coupled ice flow solvers on more than 3’000 AMD MI250x GPUs. The simulations aim at resolving parts of Greenland ice flow close to meter-scale resolution in 3-dimensions.
Regarding the technical aspects, the project will allow to run Julia at scale and use its powerful GPU stack, in particular AMDGPU.jl, to target LUMI-G's AMD MI250x GPUs.
More infos
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