rocSPARSE 3.4.0 for ROCm 6.4.1

rocSPARSE code for ROCm 6.4.1 did not change. The library was rebuilt for the updated ROCm 6.4.1 stack.

rocSPARSE 3.4.0 for ROCm 6.4.0

Added

• Added support for rocsparse_matrix_type_triangular in rocsparse_spsv
• Added test filters smoke, regression, and extended for emulation tests.
• Added rocsparse_[s|d|c|z]csritilu0_compute_ex routines for iterative ILU
• Added rocsparse_[s|d|c|z]csritsv_solve_ex routines for iterative triangular solve
• Added GPU_TARGETS to replace the now deprecated AMDGPU_TARGETS in cmake files
• Added BSR format to the SpMM generic routine rocsparse_spmm

Changed

• By default, build rocsparse shared library using --offload-compress compiler option which compresses the fat binary. This significantly reduces the shared library binary size.

Optimized

• Improved the performance of rocsparse_spmm when used with row order for B and C dense matrices and the row split algorithm, rocsparse_spmm_alg_csr_row_split.
• Improved the adaptive CSR sparse matrix-vector multiplication algorithm when the sparse matrix has many empty rows at the beginning or at the end of the matrix. This improves the routines rocsparse_spmv and rocsparse_spmv_ex when the adaptive algorithm rocsparse_spmv_alg_csr_adaptive is used.
• Improved stream CSR sparse matrix-vector multiplication algorithm when the sparse matrix size (number of rows) decreases. This improves the routines rocsparse_spmv and rocsparse_spmv_ex when the stream algorithm rocsparse_spmv_alg_csr_stream is used.
• Compared to rocsparse_[s|d|c|z]csritilu0_compute, the routines rocsparse_[s|d|c|z]csritilu0_compute_ex introduce a number of free iterations. A free iteration is an iteration that does not compute the evaluation of the stopping criteria, if enabled. This allows the user to tune the algorithm for performance improvements.
• Compared to rocsparse_[s|d|c|z]csritsv_solve, the routines rocsparse_[s|d|c|z]csritsv_solve_ex introduce a number of free iterations. A free iteration is an iteration that does not compute the evaluation of the stopping criteria. This allows the user to tune the algorithm for performance improvements.
• Improved user documentation

Resolved issues

• Fixed an issue in rocsparse_spgemm, rocsparse_[s|d|c|z]csrgemm, and rocsparse_[s|d|c|z]bsrgemm where incorrect results could be produced when rocSPARSE was built with optimization level O0. This was caused by a bug in the hash tables that could allow keys to be inserted twice.
• Fixed an issue in the routine rocsparse_spgemm when using rocsparse_spgemm_stage_symbolic and rocsparse_spgemm_stage_numeric, where the routine would crash when alpha and beta were passed as host pointers and where beta != 0.
• Fixed an issue in rocsparse_bsrilu0 where the algorithm was running out of bounds of the bsr_val array.

Upcoming changes

• Deprecated rocsparse_[s|d|c|z]csritilu0_compute routines. Users should use the newly added rocsparse_[s|d|c|z]csritilu0_compute_ex routines going forward.
• Deprecated rocsparse_[s|d|c|z]csritsv_solve routines. Users should use the newly added rocsparse_[s|d|c|z]csritsv_solve_ex routines going forward.
• Deprecated AMDGPU_TARGETS using in cmake files. Users should use GPU_TARGETS going forward.

rocSPARSE 3.3.0 for ROCm 6.3.3

rocSPARSE code for ROCm 6.3.3 did not change. The library was rebuilt for the updated ROCm 6.3.3 stack.

rocSPARSE 3.3.0 for ROCm 6.3.2

rocSPARSE code for ROCm 6.3.2 did not change. The library was rebuilt for the updated ROCm 6.3.2 stack.

rocSPARSE 3.3.0 for ROCm 6.3.1

rocSPARSE code for ROCm 6.3.1 did not change. The library was rebuilt for the updated ROCm 6.3.1 stack.

rocSPARSE 3.3.0 for ROCm 6.3.0

Added

• Add rocsparse_create_extract_descr, rocsparse_destroy_extract_descr, rocsparse_extract_buffer_size, rocsparse_extract_nnz, and rocsparse_extract APIs to allow extraction of the upper or lower part of sparse CSR or CSC matrices.
• Support for the gfx1151, gfx1200, and gfx1201 architectures.

Changed

• Change the default compiler from hipcc to amdclang in install script and cmake files.
• Change address sanitizer build targets so that only gfx908:xnack+, gfx90a:xnack+, gfx940:xnack+, gfx941:xnack+, and gfx942:xnack+ are built when BUILD_ADDRESS_SANITIZER=ON is configured.

Optimized

• Improved user documentation

Resolved issues

• Fixed the csrmm merge path algorithm so that diagonal is clamped to the correct range.
• Fixed a race condition in bsrgemm that could on rare occasions cause incorrect results.
• Fixed an issue in hyb2csr where the CSR row pointer array was not being properly filled when n=0, coo_nnz=0, or ell_nnz=0.
• Fixed scaling in rocsparse_Xhybmv when only performing y=beta*y, for example, where alpha==0 in y=alpha*Ax+beta*y.
• Fixed rocsparse_Xgemmi failures when the y grid dimension is too large. This occured when n >= 65536.
• Fixed the gfortran dependency for the azurelinux operating system.

rocSPARSE 3.2.1 for ROCm 6.2.4

Added

• Support for the gfx1151 architecture

rocSPARSE 3.2.0 for ROCm 6.2.2

rocSPARSE code for ROCm 6.2.2 did not change. The library was rebuilt for the updated ROCm 6.2.2 stack.

rocSPARSE 3.2.0 for ROCm 6.2.1

rocSPARSE code for ROCm 6.2.1 did not change. The library was rebuilt for the updated ROCm 6.2.1 stack.

rocSPARSE 3.2.0 for ROCm 6.2.0

Additions

• New Merge-Path algorithm to SpMM, supporting CSR format
• SpSM now supports row order
• rocsparseio I/O functionality has been added to the library
• rocsparse_set_identity_permutation has been added

Changes

• Adjusted rocSPARSE dependencies to related HIP packages
• Binary size has been reduced
• A namespace has been wrapped around internal rocSPARSE functions and kernels
• rocsparse_csr_set_pointers, rocsparse_csc_set_pointers, and rocsparse_bsr_set_pointers do now allow the column indices and values arrays to be nullptr if nnz is 0
• gfx803 target has been removed from address sanitizer builds

Optimizations

• Improved user manual
• Improved contribution guidelines
• SpMV adaptive and LRB algorithms have been further optimized on CSR format
• Improved performance of SpMV adaptive with symmetrically stored matrices on CSR format

Fixes

• Compilation errors with BUILD_ROCSPARSE_ILP64=ON have been resolved