Additions

• GFX1151 Support

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

Removals

• Remove Device_Memory_Allocation.pdf link in documentation

Fixes

• Fixed error/warn message during rocblas_set_stream() call

Additions

• Level 2 functions and level 3 trsm have additional ILP64 API for both C and FORTRAN (_64 name suffix) with int64_t function arguments
• Cache flush timing for gemm_batched_ex, gemm_strided_batched_ex, axpy
• Benchmark class for common timing code
• An environment variable "ROCBLAS_DEFAULT_ATOMICS_MODE" to set default atomics mode during creation of 'rocblas_handle'
• Extended dot_ex to support single-precision (fp32_r) input and double-precision (fp64_r) output and compute types

Optimizations

• Improved performance of Level 1 dot_batched and dot_strided_batched for all precisions. Performance enhanced by 6 times for bigger problem sizes measured on MI210 GPU

Changes

• Linux AOCL dependency updated to release 4.2 gcc build
• Windows vcpkg dependencies updated to release 2024.02.14
• Increased default device workspace from 32 to 128 MiB for architecture gfx9xx with xx >= 40

Deprecations

• rocblas_gemm_ex3, gemm_batched_ex3 and gemm_strided_batched_ex3 are deprecated and will be removed in the next major release of rocBLAS. Please refer to hipBLASLt for future 8 bit float usage https://github.com/ROCm/hipBLASLt

Fixes

• Fixes BF16 TT get_solutions

Optimizations

• Tune gfx942 BBS TN, TT

rocBLAS code for ROCm 6.1.1 did not change. The library was rebuilt for the updated ROCm 6.1.1 stack.

Additions

• Level 1 and Level 1 Extension functions have additional ILP64 API for both C and FORTRAN (_64 name suffix) with int64_t function arguments.
• Cache flush timing for gemm_ex.

Changes

• Some Level 2 function argument names have changed 'm' to 'n' to match legacy BLAS, there was no change in implementation.
• Standardized the use of non-blocking streams for copying results from device to host.

Fixes

• Fixed host-pointer mode reductions for non-blocking streams.

rocBLAS code for ROCm 6.0.2 did not change. The library was rebuilt for the updated ROCm 6.0.2 stack.

Added

• Addition of beta API rocblas_gemm_batched_ex3 and rocblas_gemm_strided_batched_ex3
• Added input/output type f16_r/bf16_r and execution type f32_r support for Level 2 gemv_batched and gemv_strided_batched
• Added rocblas_status_excluded_from_build to be used when calling functions which require Tensile when using rocBLAS built without Tensile
• Added system for async kernel launches setting a failure rocblas_status based on hipPeekAtLastError discrepancy

Optimized

• Trsm performance for small sizes m < 32 && n < 32

Deprecated

• In a future release atomic operations will be disabled by default so results will be repeatable. Atomic operations can always be enabled or disabled using the function rocblas_set_atomics_mode. Enabling atomic operations can improve performance.

Removed

• rocblas_gemm_ext2 API function is removed
• in-place trmm API from Legacy BLAS is removed. It is replaced by an API that supports both in-place and out-of-place trmm
• int8x4 support is removed. int8 support is unchanged
• The #define STDC_WANT_IEC_60559_TYPES_EXT has been removed from rocblas-types.h. Users who want ISO/IEC TS 18661-3:2015 functionality must define STDC_WANT_IEC_60559_TYPES_EXT before including float.h, math.h, and rocblas.h
• The default build removes device code for gfx803 architecture from the fat binary

Fixed

• Make offset calculations for rocBLAS functions 64 bit safe. Fixes for very large leading dimension or increment potentially causing overflow:
  • Level2: gbmv, gemv, hbmv, sbmv, spmv, tbmv, tpmv, tbsv, tpsv
• Lazy loading to support heterogeneous architecture setup and load appropriate tensile library files based on the device's architecture
• Guard against no-op kernel launches resulting in potential hipGetLastError

Changed

• Default verbosity of rocblas-test reduced. To see all tests set environment variable GTEST_LISTENER=PASS_LINE_IN_LOG

rocBLAS code for ROCm 5.7.1 did not change. The library was rebuilt for the updated ROCm 5.7.1 stack.