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CHANGELOG
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CHANGELOG
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Development version (next version)
- Fix a bug in the pre-processor that would cause issues on Arm GPUs
- Fix DLL install directory in mingw
- Added tuned parameters for various devices (see doc/tuning.md)
- Modifications to the python bindings (pyclblast)
* Convert float scalar values to cl_half for fp16 routines
* Amax/amin, max/min routines accept unsigned integer buffers for index
- Generator script now always use LF endings, independent of the platform
- Switch to pyproject.toml file for installing python bindings
- Build python binding using Cmake, adding Windows support
Version 1.6.1
- Fix pointer error in pyclblast on Arm
- Fix a multithreading bug related to storing objects in the cache
- Added tuned parameters for many devices (see doc/tuning.md)
Version 1.6.0
- Modifications to improve performance on Qualcomm Adreno GPUs:
* Unique database entries for specific Adreno devices
* Toggle OpenCL kernel compilation options for Adreno
* New preprocessor directive RELAX_WORKGROUP_SIZE
- Fixed a bug in handling of #undef in CLBlast loop unrolling and array-to-register mapping functions
- Fixed a bug in XAMAX/XAMIN routines related to inadvertently including the increment and offset in the result
- Fixed a bug in XAMAX/XAMIN routines that would cause only the real part of a complex number to be taken into account
- Fixed a bug that caused tests to not properly do integer-output testing (for XAMAX/XAMIN)
- Fixes a minor issue with the expected input buffer size in the TRMV/TBMV/TPMV/TRSV routines
- Fixes an issue with crashes on Android related to calling clReleaseProgram
- Fixes two small issues in the plotting script
- Fixed a documentation bug in the 'ld' requirements
- Enabled Github Actions CI builds for testing and releasing
- Various minor fixes and enhancements
- Added tuned parameters for various devices (see doc/tuning.md)
Version 1.5.3
- Fix a correctness issue with DGEMM on SM 7.5 Turing GPUs
- Various minor fixes and enhancements
- Added tuned parameters for various devices (see doc/tuning.md)
- Update cl.hpp to the new opencl.hpp header in the samples
- Changed the complex sum routine to return the complex sum instead of the absolute complex sum.
Version 1.5.2
- Changed XAMAX/XAMIN to more likely return first rather than last min/max index, updated API docs
- Added batched routines to pyclblast
- Added CLBLAST_VERSION_MAJOR/MINOR/PATCH defines in headers to store version numbering
- Several small improvements to the benchmark script (thanks to 'baryluk')
- Fixed a bug in the caching when using a context with multiple devices
- Fixed a bug in the tuners related to global workgroup size not being a multiple of the local
- Various minor fixes and enhancements
- Added tuned parameters for various devices (see doc/tuning.md)
Version 1.5.1
- Implemented single-kernel version of convolution as GEMM
- Now catches all exceptions thrown by the tuners
- Fixed a bug in ISAMIN kernel
- Fixed an out-of-bounds read/write in the XHAD routine (thanks to etomzak)
- Various minor fixes and enhancements
- Added tuned parameters for various devices (see doc/tuning.md)
Version 1.5.0
- Added support for shuffle instructions for NVIDIA GPUs (thanks to 'tyler-utah')
- Added an option to compile the Netlib API with static OpenCL device and context (-DNETLIB_PERSISTENT_OPENCL=ON)
- Added a FAQ page to the documentation
- The tuners now check beforehand on invalid local thread sizes and skip those completely
- Made the tuning API (OverrideParameters) more flexible, disregarding superfluous parameters
- Fixed an issue with conjugate transpose not being executed in certain cases for a.o. XOMATCOPY
- Fixed an issue with AMD GPUs and the new GEMMK == 1 kernel
- Fixed an issue with the preprocessor and the new GEMMK == 1 kernel
- Fixed an issue for unequal MWG and NWG and the new GEMMK == 1 kernel
- Fixed an issue for certain parameters for AXPY's 'XaxpyFaster' kernel
- Various minor fixes and enhancements
- Added non-BLAS routines:
* SCONVGEMM/DCONVGEMM/HCONVGEMM (convolution as im2col followed by batched GEMM)
* SCOL2IM/DCOL2IM/CCOL2IM/ZCOL2IM/HCOL2IM (col2im transform as used in machine learning)
Version 1.4.1
- Fixed an access violation under Windows upon releasing the OpenCL program when the driver is already unloaded
- Fixed an issue with double cl_program release in the CLBlast caching system
- Added tuned parameters for various devices (see doc/tuning.md)
Version 1.4.0
- Added Python interface to CLBlast 'PyCLBlast'
- Added CLBlast to Ubuntu PPA and macOS Homebrew package managers
- Added an API to run the tuners programmatically without any I/O
- Improved the performance potential by adding a second tunable GEMM kernel with 2D register tiling
- Added support for Intel specific subgroup shuffling extensions for faster GEMM on Intel GPUs
- Re-added a local memory size constraint to the tuners
- The routine tuners now automatically pick up tuning results from disk from the kernel tuners
- Updated and reorganised the CLBlast documentation
- Added a 'canary' region to check for overflows in the tuner and tests (inspired by clARMOR)
- Added an option to test against and compare performance with Intel's MKL
- Fixed an access violation when compiled with Visual Studio upon releasing the OpenCL program
- Fixed incorrect releasing of the OpenCL program resulting in segfaults / access violations
- Various minor fixes and enhancements
- Added tuned parameters for various devices (see doc/tuning.md)
- Added non-BLAS level-1 routines:
* SHAD/DHAD/CHAD/ZHAD/HHAD (Hadamard element-wise vector-vector product)
Version 1.3.0
- Re-designed and integrated the auto-tuner, no more dependency on CLTune
- Made it possible to override the tuning parameters in the clients straight from JSON tuning files
- Added OpenCL pre-processor to unroll loops and perform array-to-register promotions for compilers
which don't do this themselves (ARM Mali) - greatly improves performance on these platforms
- Added first tuners for the TRSV (block size) and TRSM (invert kernel) routines
- Added an optional argument to the GEMM routine to provide a pre-allocated temporary buffer
- Fixed an issue with a crashing/hanging AMD APP compiler with the TRSM routine (invert kernel)
- Improved compilation time by splitting the tuning database into multiple compilation units
- Various minor fixes and enhancements
- Added tuned parameters for various devices (see README)
- Added the RetrieveParameters function to the API to be able to inspect the tuning parameters
- Added a strided-batched (not part of the BLAS standard) routine, faster but less generic compared
to the existing xGEMMBATCHED routines:
* SGEMMSTRIDEDBATCHED/DGEMMSTRIDEDBATCHED/CGEMMSTRIDEDBATCHED/ZGEMMSTRIDEDBATCHED/HGEMMSTRIDEDBATCHED
Version 1.2.0
- Fixed a bug in the TRSM/TRSV routines due to missing synchronisations after GEMM/GEMV calls
- Fixed a bug in TRSM when using the a-offset argument
- Added a CUDA API to CLBlast:
* The library and kernels can be compiled with the CUDA driver API and NVRTC (requires CUDA 7.5)
* Two CUDA API sample programs are added: SGEMM and DAXPY
* All correctness tests and performance clients work on CUDA like they did for OpenCL
- Kernels are now cached based on their tuning parameters: fits the use-case of 'OverrideParameters'
- Cross-compiling for Android is now supported using CMake; instructions are added to the README
- Improved performance for small GEMM problems by going from 3 to 1 optional temporary buffers
- GEMM kernel selection (direct vs in-direct) is now done automatically using a new tuner
- Various minor fixes and enhancements
- Added tuned parameters for various devices (see README)
Version 1.1.0
- The tuning database now has defaults per architecture (e.g. NVIDIA Kepler SM3.5, AMD Fiji)
- The tuning database now has a dictionary to translate vendor/device names to a common set
- The tuners can now distinguish between different AMD GPU board names of the same architecture
- The tuners can now use particle-swarm optimisation to search more efficiently (thanks to 'mcian')
- Improved performance for small problems on NVIDIA hardware by caching the device name
- Further improved compilation time of database.cpp
- Added a small diagnostics helper executable
- Various minor fixes and enhancements
- Added tuned parameters for various devices (see README)
- Added non-BLAS routines:
* SIM2COL/DIM2COL/CIM2COL/ZIM2COL/HIM2COL (im2col transform as used to express convolution as GEMM)
Version 1.0.1
- Fixed a bug in the direct version of the GEMM kernel
Version 1.0.0
- Fixed a bug in the TRSM routine for alpha != 1
- Fixed a bug in the cache related to multi-device contexts (thanks to 'kpot')
- Fixed a bug in the direct version of the GEMM kernel
- Fixed several warnings for MSVC and Clang
- Added support for Mesa Clover and AMD's ROCm by making the inline keyword optional in kernels
- Performance reports are now external at https://cnugteren.github.io/clblast
- Greatly improved compilation time of database.cpp
- Various minor fixes and enhancements
- Added tuned parameters for various devices (see README)
- Added non-BLAS level-1 routines:
* iSAMIN/iDAMIN/iCAMIN/iZAMIN (absolute minimum version of the ixAMAX BLAS routines)
Version 0.11.0
- Improved the internal program source and binary caches for scalability and speed (thanks to 'intelfx')
- Fixed a bug having to re-create the binary even if it was in the cache
- Fixed a bug when using offsets in the direct version of the GEMM kernels
- Fixed a missing cl_khr_fp64 when running double-precision on Intel CPUs
- Fixed tests on Apple's CPU OpenCL implementation; still not fast but correct at least
- Fixed bugs in the half-precision routines HTBMV/HTPMV/HTRMV/HSYR2K/HTRMM
- Tests now also exit with an error code when OpenCL errors or compilation errors occur
- Tests now also check for the L2 error in case of half-precision
- Clients can now test against cuBLAS on NVIDIA systems for performance comparisons (-DCUBLAS=ON)
- Replaced the R graph scripts with Python/Matplotlib scripts
- Various minor fixes and enhancements
- Added tuned parameters for various devices (see README)
- Added the OverrideParameters function to the API to be able to supply custom tuning parameters
- Added triangular solver (level-2 & level-3) routines:
* STRSV/DTRSV/CTRSV/ZTRSV (experimental, un-optimized)
* STRSM/DTRSM/CTRSM/ZTRSM (experimental, un-optimized)
- Added batched (not part of the BLAS standard) routines:
* SAXPYBATCHED/DAXPYBATCHED/CAXPYBATCHED/ZAXPYBATCHED/HAXPYBATCHED (batched version of AXPY)
* SGEMMBATCHED/DGEMMBATCHED/CGEMMBATCHED/ZGEMMBATCHED/HGEMMBATCHED (batched version of GEMM)
Version 0.10.0
- Updated to version 8.0 of the CLCudaAPI C++11 OpenCL header
- Changed the enums in the C API to avoid potential name clashes with external code
- Added a Netlib CBLAS compatible API (not recommended for full control over performance)
- Greatly improved the way exceptions are handled in the library (thanks to 'intelfx')
- Improved performance of GEMM kernels for small sizes by using a direct single-kernel implementation
- Fixed a bug in the tests and samples related to waiting for an invalid event
- Fixed a bug in the SYRK/SYR2K/HERK/HER2K routines that would occur with specific tuning parameters
- Fixed a bug in the TRMM routine that would overwrite input data before consuming everything
- Added support for compilation under Visual Studio 2013 (MSVC++ 12.0)
- Added an option to set OpenCL compiler options through the env variable CLBLAST_BUILD_OPTIONS
- Added an option to run tuned kernels multiple times to average execution times
- Added an option to build a static version of the library
- Made it possible to use the command-line environmental vars everywhere and without re-running CMake
- Various minor fixes and enhancements
- Added tuned parameters for various devices (see README)
Version 0.9.0
- Updated to version 6.0 of the CLCudaAPI C++11 OpenCL header
- Improved performance significantly of rotated GEMV computations
- Improved performance of unseen/un-tuned devices by a better default tuning parameter selection
- Fixed proper MSVC dllimport and dllexport declarations
- Fixed memory leaks related to events not being released
- Fixed a bug with a size_t and cl_ulong mismatch on 32-bit systems
- Fixed a bug related to the cache and retrieval of programs based on the OpenCL context
- Fixed a performance issue (caused by fp16 support) by optimizing alpha/beta parameter passing to kernels
- Fixed a bug in the OpenCL kernels: now placing __kernel before __attribute__
- Fixed a bug in level-3 routines when beta is zero and matrix C contains NaNs
- Added an option (-warm_up) to do a warm-up run before timing in the performance clients
- Various minor fixes and enhancements
- Added tuned parameters for various devices (see README)
Version 0.8.0
- Added support for half-precision floating-point (fp16) in the library
- Made it possible to compile the performance tests (clients) separately from the correctness tests
- Made a reference BLAS and head-to-head performance comparison optional in the clients
- Increased the verbosity of the "-verbose" option in the correctness tests
- Refactored the host code for better compilation times and fewer lines of code
- Added Appveyor continuous integration and increased coverage of the Travis builds
- Improved the API documentation
- Various minor fixes and enhancements
- Added tuned parameters for various devices (see README)
- Added half-precision routines:
* Level-1: HSWAP/HSCAL/HCOPY/HAXPY/HDOT/HNRM2/HASUM/HSUM/iHAMAX/iHMAX/iHMIN
* Level-2: HGEMV/HGBMV/HHEMV/HHBMV/HHPMV/HSYMV/HSBMV/HSPMV/HTRMV/HTBMV/HTPMV/HGER/HSYR/HSPR/HSYR2/HSPR2
* Level-3: HGEMM/HSYMM/HSYRK/HSYR2K/HTRMM
- Added non-BLAS routines:
* SOMATCOPY/DOMATCOPY/COMATCOPY/ZOMATCOPY/HOMATCOPY (matrix copy, scaling, and/or transpose)
Version 0.7.1
- Improved performance of large power-of-2 xGEMM kernels for AMD GPUs
- Fixed a bug in the xGEMM routine related to the event incorrectly set
- Made MSVC link the run-time libraries statically
Version 0.7.0
- Added exports to be able to create a DLL on Windows (thanks to Marco Hutter)
- Made the library thread-safe
- Performance and correctness tests can now (on top of clBLAS) be performed against CPU BLAS libraries
- Fixed the use of events within the library
- Changed the enum parameters to match the raw values of the cblas standard
- Fixed the cache of previously compiled binaries and added a function to fill or clear it
- Various minor fixes and enhancements
- Added a preliminary version of the API documentation
- Added additional sample programs
- Added tuned parameters for various devices (see README)
- Added level-1 routines:
* SNRM2/DNRM2/ScNRM2/DzNRM2
* SASUM/DASUM/ScASUM/DzASUM
* SSUM/DSUM/ScSUM/DzSUM (non-absolute version of the above xASUM BLAS routines)
* iSAMAX/iDAMAX/iCAMAX/iZAMAX
* iSMAX/iDMAX/iCMAX/iZMAX (non-absolute version of the above ixAMAX BLAS routines)
* iSMIN/iDMIN/iCMIN/iZMIN (non-absolute minimum version of the above ixAMAX BLAS routines)
Version 0.6.0
- Added support for MSVC (Visual Studio) 2015
- Added tuned parameters for various devices (see README)
- Now automatically generates C++ code from JSON tuning results
- Added level-2 routines:
* SGER/DGER
* CGERU/ZGERU
* CGERC/ZGERC
* CHER/ZHER
* CHPR/ZHPR
* CHER2/ZHER2
* CHPR2/ZHPR2
* CSYR/ZSYR
* CSPR/ZSPR
* CSYR2/ZSYR2
* CSPR2/ZSPR2
Version 0.5.0
- Improved structure and performance of level-2 routines (xSYMV/xHEMV)
- Reduced compilation time of level-3 OpenCL kernels
- Added level-1 routines:
* SSWAP/DSWAP/CSWAP/ZSWAP
* SSCAL/DSCAL/CSCAL/ZSCAL
* SCOPY/DCOPY/CCOPY/ZCOPY
* SDOT/DDOT
* CDOTU/ZDOTU
* CDOTC/ZDOTC
- Added level-2 routines:
* SGBMV/DGBMV/CGBMV/ZGBMV
* CHBMV/ZHBMV
* CHPMV/ZHPMV
* SSBMV/DSBMV
* SSPMV/DSPMV
* STRMV/DTRMV/CTRMV/ZTRMV
* STBMV/DTBMV/CTBMV/ZTBMV
* STPMV/DTPMV/CTPMV/ZTPMV
Version 0.4.0
- Now using the Claduc C++11 interface to OpenCL
- Added plain C API for increased compatibility (clblast_c.h)
- Re-organized tuner infrastructure and added JSON output
- Removed clBLAS sources, it should now be installed separately for testing
- Added Travis continuous integration
- Added level-2 routines:
* CHEMV/ZHEMV
* SSYMV/DSYMV
Version 0.3.0
- Re-organized test/client infrastructure to avoid code duplication
- Added an optional bypass for pre/post-processing kernels in level-3 routines
- Significantly improved performance of level-3 routines on AMD GPUs
- Added level-3 routines:
* CHEMM/ZHEMM
* SSYRK/DSYRK/CSYRK/ZSYRK
* CHERK/ZHERK
* SSYR2K/DSYR2K/CSYR2K/ZSYR2K
* CHER2K/ZHER2K
* STRMM/DTRMM/CTRMM/ZTRMM
Version 0.2.0
- Added support for complex conjugate transpose
- Several host-code performance improvements
- Improved testing infrastructure and coverage
- Added level-2 routines:
* SGEMV/DGEMV/CGEMV/ZGEMV
- Added level-3 routines:
* CGEMM/ZGEMM
* CSYMM/ZSYMM
Version 0.1.0
- Initial preview version release to GitHub
- Supported level-1 routines:
* SAXPY/DAXPY/CAXPY/ZAXPY
- Supported level-3 routines:
* SGEMM/DGEMM
* SSYMM/DSYMM