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physics.comp-ph2022
Scalable Multi-node Fast Fourier Transform on GPUs
Manthan Verma, Soumyadeep Chatterjee, Gaurav Garg +5
In this paper, we present the details of our multi-node GPU-FFT library, as well its scaling on Selene HPC system. Our library employs slab decomposition for data division and MPI…
physics.comp-ph2019
Challenges in fluid flow simulations using Exascale computing
Mahendra K. Verma
In this paper, I discuss the challenges in porting hydrodynamic codes to futuristic exascale HPC systems. In particular, we describe the computational complexities of finite differ…
physics.comp-ph2018
Scaling of a Fast Fourier Transform and a Pseudo-spectral Fluid Solver up to 196608 cores
Anando G. Chatterjee, Mahendra K. Verma, Abhishek Kumar +3
In this paper we present scaling results of a FFT library, FFTK, and a pseudospectral code, Tarang, on grid resolutions up to grid using 65536 cores of Blue Gene/P and 196…