cuSPARSE Library - Generic APIs Examples

Description

This folder demonstrates cuSPARSE Generic APIs usage.

cuSPARSE Generic APIs Documentation

cuSPARSE Samples

Vector - Vector Operations
Matrix - Vector Operations
Matrix - Matrix Operations
Conversion
Legacy APIs
Optimizations
Sparse Iterative Methods

Vector - Vector Operations

cusparseAxpby

The sample demonstrates Sparse Vector - Dense Vector scaling and sum
cusparseGather

The sample demonstrates Dense Vector to Sparse Vector element gathering
cusparseRot

The sample demonstrates Sparse Vector - Dense Vector Givens rotation
cusparseScatter

The sample demonstrates Sparse Vector to Dense Vector element scattering
cusparseSpVV

The sample demonstrates Sparse Vector - Dense Vector dot product

Matrix - Vector Operations

cusparseSpMV CSR

The sample demonstrates Sparse Matrix - Dense Vector multiplication, where the sparse matrix is represented in CSR (Compressed Sparse Row) storage format
cusparseSpMV COO

The sample demonstrates Sparse Matrix - Dense Vector multiplication, where the sparse matrix is represented in COO (Coordinate) storage format
cusparseSpSV CSR

The sample demonstrates Sparse triangular solver with single right-hand side, where the sparse matrix is represented in CSR (Compressed Sparse Row) storage format
cusparseSpSV COO

The sample demonstrates Sparse triangular solver with single right-hand side, where the sparse matrix is represented in COO (Coordinate) storage format

Matrix - Matrix Operations

cusparseSpMM CSR

The sample demonstrates Sparse Matrix - Dense Matrix multiplication = Dense Matrix, where the sparse matrix is represented in CSR (Compressed Sparse Row) storage format
cusparseSpMM CSR - Batched

The sample demonstrates Batched Sparse Matrix - Dense Matrix multiplication = Dense Matrix , where the sparse matrix is represented in CSR (Compressed Sparse Row) storage format
cusparseSpMMOp CSR

The sample demonstrates Sparse Matrix - Dense Matrix multiplication = Dense Matrix with Custom Operators, where the sparse matrix is represented in CSR (Compressed Sparse Row) storage format
cusparseSpMM COO

The sample demonstrates Sparse Matrix - Dense Matrix multiplication = Dense Matrix, where the sparse matrix is represented in COO (Coordinate) storage format
cusparseSpMM COO - Batched

The sample demonstrates Batched Sparse Matrix - Dense Matrix multiplication = Dense Matrix, where the sparse matrix is represented in COO (Coordinate) storage format
cusparseSpMM SDDMM

The sample demonstrates Dense Matrix - Dense Matrix multiplication = Sparse Matrix, where the sparse matrix is represented in CSR (Compressed Sparse Row) storage format
cusparseSpMM Blocked-ELL

The sample demonstrates Sparse Matrix - Dense Matrix multiplication = Dense Matrix, where the sparse matrix is represented in Blocked-ELL storage format
cusparseSpMM SDDMM - Batched The sample demonstrates Batched Dense matrix - Dense matrix multiplication = Sparse matrix, where the sparse matrix is represented in CSR (Compressed Sparse Row) storage format
cusparseSpGEMM

The sample demonstrates Sparse Matrix - Sparse Matrix multiplication = Sparse Matrix, where all operands are sparse matrices represented in CSR (Compressed Sparse Row) storage format
cusparseSpGEMM - Memory Optmization

The sample demonstrates Sparse Matrix - Sparse Matrix multiplication = Sparse Matrix, where all operands are sparse matrices represented in CSR (Compressed Sparse Row) storage format and the memory usage is optimzed
cusparseSpGEMM_reuse

The sample demonstrates Sparse Matrix - Sparse Matrix multiplication = Sparse Matrix, where all operands are sparse matrices represented in CSR (Compressed Sparse Row) storage format and the structure of the output matrix can be reused multiple times
cusparseSpSM CSR

The sample demonstrates Sparse triangular solver with multiple right-hand sides, where the sparse matrix is represented in CSR (Compressed Sparse Row) storage format
cusparseSpSM COO

The sample demonstrates Sparse triangular solver with multiple right-hand sides, where the sparse matrix is represented in COO (Coordinate) storage format

Conversion

cusparseSparseToDense

The sample demonstrates Sparse Matrix to Dense Matrix conversion, where the sparse matrix is represented in CSR (Compressed Sparse Row) storage format
cusparseDenseToSparse

The sample demonstrates Dense Matrix to Sparse Matrix conversion, where the sparse matrix is represented in CSR (Compressed Sparse Row) storage format
cusparseDenseToSparse (Blocked-ELL)

The sample demonstrates Dense Matrix to Sparse Matrix conversion, where the sparse matrix is represented in Blocked-Ellpack storage format

Legacy APIs

cusparseXcoosortByRow

The sample demonstrates how to sort a COO format matrix
cusparseSgpsvInterleavedBatch

The sample demonstrates how to solves two penta-diagonal systems with NOT interleaved format

Optimizations

CUDA Graph Capture

The sample demonstrates how to optimize Sparse vector - Dense vector dot product (cusparseSpVV) by exploiting CUDA Graph Capture functionality
Hardware Memory Compression

The sample demonstrates how to optimize Sparse vector - Dense vector scaling and sum (cusparseAxpby) by exploiting NVIDIA Ampere architecture Hardware Memory Compression

Sparse Iterative Methods

Preconditioned CG

The sample describes how to use the cuSPARSE and cuBLAS libraries to implement the Incomplete-Cholesky preconditioned iterative Conjugate Gradient (CG)
Preconditioned BiCGStab

The sample describes how to use the cuSPARSE and cuBLAS libraries to implement the Incomplete-LU preconditioned iterative Biconjugate Gradient Stabilized Method (BiCGStab)