PETSc version 3.17.4
MatH2OpusLowRankUpdate
Perform a low-rank update of the form A = A + s * U * V^T
Synopsis
PetscErrorCode MatH2OpusLowRankUpdate(Mat A, Mat U, Mat V, PetscScalar s)
Input Parameters
| A | - the hierarchical matrix
|
| s | - the scaling factor
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| U | - the dense low-rank update matrix
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| V | - (optional) the dense low-rank update matrix (if NULL, then V = U is assumed)
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Notes: The U and V matrices must be in dense format
See Also
MatCreate(), MATH2OPUS, MatCreateH2OpusFromMat(), MatCreateH2OpusFromKernel(), MatH2OpusCompress(), MatH2OpusOrthogonalize(), MATDENSE
Level
intermediate
Location
src/mat/impls/h2opus/cuda/math2opus.cu
Index of all Mat routines
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Index of all manual pages