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math.NA2026
Accelerating matrix-free fast diagonalization and preconditioned linear solvers for higher-order finite element discretized elliptic problems on distributed GPUs
Gourab Panigrahi, Phani Motamarri
The time to solution of an iterative solver depends on the number of iterations and the cost per iteration. This paper develops algorithms that reduce both for elliptic problems di…
cond-mat.mtrl-sci2026
Towards exascale fully relativistic pseudopotential density functional theory calculations enabled by mixed-precision computation and compressed-communication using residual based subspace iteration
Nikhil Kodali, Gourab Panigrahi, Nishant Gupta +6
Materials exhibiting noncollinear magnetism or strong spin-orbit-coupling underpin many spintronic and topological applications, but their simulations require complex two-component…