petsc4py.typing.MatHtoolKernelFunction

petsc4py.typing.MatHtoolKernelFunction

PETSc.Mat Mat.Type.HTOOL kernel callback.

Callable with signature kernel(sdim, M, N, rows, cols, v, ctx):

• sdim — spatial dimension of the coordinate space

• M — number of target (row) indices

• N — number of source (column) indices

• rows — target global indices, shape (M,)

• cols — source global indices, shape (N,)

• v — output submatrix, shape (M, N) in column-major order, to be filled by the callable

• ctx — user-defined context passed to Mat.createHtoolFromKernel

alias of Callable[[int, int, int, ndarray[tuple[Any, …], dtype[integer]], ndarray[tuple[Any, …], dtype[integer]], ndarray[tuple[Any, …], dtype[floating | complexfloating]], Any], None]