MatSetValuesDevice#

sets a set of values into a matrix, this may be called by CUDA or KOKKOS kernels

Synopsis#

int
  MatSetValuesDevice(PetscSplitCSRDataStructure d_mat, PetscInt m, const PetscInt im[], PetscInt n, const PetscInt in[], const PetscScalar v[], InsertMode is)

Input Parameters#

  • d_mat - an object obtained with MatCUSPARSEGetDeviceMatWrite() or MatKokkosGetDeviceMatWrite()

  • m - the number of rows to insert or add to

  • im - the rows to insert or add to

  • n - number of columns to insert or add to

  • in - the columns to insert or add to

  • v - the values to insert or add to the matrix (treated as a by n row oriented dense array

  • is - either INSERT_VALUES or ADD_VALUES

Notes#

Any row or column indices that are outside the bounds of the matrix on the rank are discarded

It is recommended that MatSetValuesCOO() be used instead of this routine for efficiency

See Also#

MatSetValues(), MatCreate(), MatCreateDenseCUDA(), MatCreateAIJCUSPARSE(), MatKokkosGetDeviceMatWrite(), MatCUSPARSEGetDeviceMatWrite(), MatSetValuesCOO()

Level#

advanced

Location#

include/petscaijdevice.h

Examples#

src/mat/tutorials/ex5cu.cu
src/mat/tutorials/ex5k.kokkos.cxx

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