MATH2OPUS#

“h2opus” - A matrix type for hierarchical matrices using the H2Opus package.

Options Database Keys#

-mat_type h2opus

matrix type to “h2opus” during a call to MatSetFromOptions()

Notes#

H2Opus implements hierarchical matrices in the H^2 flavour. It supports CPU or NVIDIA GPUs. For CPU only builds, use ./configure –download-h2opus –download-thrust to install PETSc to use H2Opus. In order to run on NVIDIA GPUs, use ./configure –download-h2opus –download-magma –download-kblas. For details and additional references, see “H2Opus: A distributed-memory multi-GPU software package for non-local operators”, available at https://arxiv.org/abs/2109.05451.

See Also#

MATHTOOL, MATDENSE, MatCreateH2OpusFromKernel(), MatCreateH2OpusFromMat()

Level#

beginner

Location#

src/mat/impls/h2opus/cuda/math2opus.cu


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