Module cusparse 

Thin safe-ish wrappers over cudarc::cusparse::sys entry points Phase 4 needs but the safe layer doesn’t provide.

Every wrapper:

1. Translates a cusparseStatus_t into a crate::error::GpuError::LibraryError tagged "cusparse".
2. Funnels cusparseDestroy* calls into a Drop so descriptors do not leak when an error short-circuits the pipeline.

Higher-level orchestration (descriptor caches, workspace pooling) lives in crate::kernel::sparse.

Structs

DnMatGuard

RAII guard for a cusparseDnMatDescr_t.

DnVecGuard

RAII guard for a cusparseDnVecDescr_t.

SpGemmDescGuard

RAII guard for a cusparseSpGEMMDescr_t.

SpMatGuard

RAII guard for a cusparseSpMatDescr_t.

SpSvDescGuard

RAII guard for a cusparseSpSVDescr_t.

Enums

SddmmAlg

Algorithm tag for cusparseSDDMM.

SpGemmAlg

Algorithm tag for cusparseSpGEMM.

SpMmAlg

Algorithm tag for cusparseSpMM.

SpMvAlg

Algorithm tag to use for cusparseSpMV. Public so kernel/sparse/spmv.rs can plumb it through the request struct in a future phase.

SpSvAlg

Algorithm tag for cusparseSpSV.

Functions

ok

Convert a cuSPARSE status into a Result<(), GpuError>.