graphlow.core.MeshTopology.free_backend_sparse

MeshTopology.free_backend_sparse(name: str | None = None, layout: Literal['csr', 'coo'] = 'coo') → None

Free backend sparse.

Advanced API: for explicit control over backend (GPU/device) memory. Frees materialized sparse tensors from the backend cache. Use when you no longer need the sparse matrices and want to release device memory.

Parameters:

namestr | None

Sparse name. If None, free all sparse. - For incidence/adjacency, the name is like “CP”, “CC”. - For derived skeletons, the name is formatted as “[DerivedMatrixName]_[AdjacencyName]”. e.g. “DEGREE_PP”, “NORMALIZED_PP”, “LAPLACIAN_CC”.

layoutLiteral[“csr”, “coo”]

Layout of the sparse matrix.