1. 11 Feb, 2025 1 commit
  2. 05 Nov, 2024 1 commit
    • Juan Manuel Martinez Caamaño's avatar
      [generate.py] Override blob list if it already exists (#1635) · 464abd23
      Juan Manuel Martinez Caamaño authored
      Before, generate.py appended the list at the end of the output file.
      When running the cmake configuration steps multiple times on the
      examples, the blob list (such as fwd_blob_list.txt) would grow at every
      configuration.
      `library/src/tensor_operation_instance/gpu/mha/CMakeLists.txt` worked around
      this issue by removing the output file if it exists.
      
      Now, generate.py overrides the content of the output file.
      There is no need for the workaround in the CMakeLists.txt;
      and the issue is solved for the example projects too.
      464abd23
  3. 28 Aug, 2024 1 commit
    • Po Yen Chen's avatar
      [CK_TILE] Add PagedAttention kernels (#1387) · c1569892
      Po Yen Chen authored
      
      
      * Use dictionary to config all the functions
      
      * Add init codegen logic for fmha fwd appendkv
      
      * Call HIP_CHECK_ERROR() macro to get real source info
      
      * Setup meaningfull arguments
      
      * Sync kernel name with the codegen
      
      * Add knew/vnew tensors to the kernel argument
      
      * Fix wrong K values after appending
      
      * Fix vnew append errro
      
      * Extract common logics
      
      * Fix Vnew tile dstr for row major case
      
      * Conditionally add fwd_splitkv API in fmha_fwd example
      
      * Conditionally add call to fmha_fwd_splitkv()
      
      * Remove "EXAMPLE_" prefix of cmake variables
      
      * Regsiter API handlers automatically
      
      * Early return if 0 < s_k_new is not supported
      
      * Show message if we are ignoring option
      
      * Unify CMakeLists.txt coding style
      
      * Set num_splits=1 if split-kv is not supported
      
      * Add length/stride getters for HostTensor
      
      * Add RoPE example utilities
      
      * Add reference_rotary_position_embedding() (not implemented)
      
      * Finish reference_rotary_position_embedding() impl
      
      * Fix typo of HostTensor<>::get_length()
      
      * Fix compilation errors
      
      * Fix wrong answer when interleaved=false
      
      * Fix wrong answer when interleaved=true
      
      * Append K/V in the host verification code
      
      * Simplify K appending logics
      
      * Simplify v_host_ref definition
      
      * Reduce input/output dimensions
      
      * Rename function: add "batched" prefix
      
      * Apply RoPE on host side
      
      * Rename RoPE utility function
      
      * Fix wrong tensor size
      
      * Avoid invoking deprecated method 'find_module'
      
      * Pass RoPE kernel args
      
      * Create Rotary Cos/Sin tile windows in kernel
      
      * Add compute data type alias for RoPE
      
      * Randomly generate seqlen_knew if needed
      
      * Fix seqlen_knew enabling check logic
      
      * Add minimum seqlen_k to generate compliance kvcache
      
      * Fix compilation error in debug mode
      
      * Fix wrong boundaries
      
      * Fix wrong seqlen_k for kvcache
      
      * Rename variables used in distributio encoding
      
      * Fix rotary cos/sin tensor/tile size
      
      * Add constraint to the rotary_dim option
      
      * Remove unused inner namespace
      
      * Add dram distribution for rotary_cos/rotary_sin (interleaved)
      
      * Only apply interleaved RoPE on Knew for now
      
      * Fix wrong thread starting offset
      
      * Instantiate multiple kernels for RoPE approaches
      
      * Clean-up pipeline
      
      * Fix error in RoPE host reference
      
      * Handle RoPE half-rotated logics
      
      * Support 8x rotary_dim under half-rotated RoPE
      
      * Add comment
      
      * Apply elementwise function to the loaded tiles
      
      * Unify parameter/variable naming style
      
      * Remove constness from q_ptr
      
      * Add code blocks for q_tile
      
      * Apply RoPE to q_tile
      
      * Remove debug print code in kernel
      
      * Fix wrong knew/vnew appending positions
      
      * Use better naming for tile indices
      
      * Add make_tile_window() for adding distribution only
      
      * Skip code if # of block is more than needed
      
      * Move thread locating logics into policy
      
      * Remove always true static_assert()
      
      * Rename header
      
      * Rename RotaryEmbeddingEnum
      
      * Extract rotary embedding logic out
      
      * Re-order parameters
      
      * Align naming of some tile size constants
      
      * Rename more tile size constants
      
      * Fix wrong grid size
      
      * Fix wrong shape of knew_host/vnew_host
      
      * Fix wrong index into knew_host/vnew_host
      
      * Fix wrong rotary_cos/rotary_sin memory size for Q
      
      * Extract Q/Knew vector size to helper methods
      
      * Use different rotary_cos/rotary_sin distr for Q/Knew
      
      * Update host/device specifiers
      
      * Fix wrong data type for Q rotary_cos/rotary_sin
      
      * Remove RoPEComputeDataType type alias
      
      * Shift rotary_cos/rotary_sin by cache_seqlen_k
      
      * Add comment for why I just 't' for all padding flags
      
      * Align commit message to the real comment
      
      * Fix wrong pipeline
      
      * Rename utility function
      
      * Disable host verification if API not exist
      
      * Fix wrong rope key for fp8 pipeline
      
      * Allow only apply RoPE on Q (without append KV)
      
      * Add append-kv smoke tests
      
      * Remove debug statements
      
      * Remove more debug statements
      
      * Re-arrange the 'set +x' command
      
      * Remove no-longer used method in pipeline
      
      * Add missing init code
      
      * Refine pipeline padding settings
      
      * Enlarge rotary_dim limit (8 -> 16)
      
      * Enlarge KPerThread for rotary_interleaved=false
      
      * Update rotary_dim range in smoke_test_fwd.sh
      
      * Add template argument 'kIsPagedKV' for splitkv kernels
      
      * Launch splitkv kernel if given page_block_size
      
      * Fix wrong kernel name
      
      * Fix seqlen_k_min for pre-fill case (1 -> 0)
      
      * Add copy_const<> type trait
      
      * Add another make_tile_window()
      
      * Introduce 'TileWindowNavigator' types
      
      * Simplify TileWindowNavigator interfaces
      
      * Fix tile window navigation bugs
      
      * Disable calling fmha_fwd()
      
      * Remove ununnecessary data members
      
      * Simplify more make_tile_window() overloads
      
      * Move V tile through TileWindowNavigator
      
      * Fix uneven split checking logic
      
      * Move code after decide seqlen_q/seqlen_k
      
      * Make sure we always start reading complete tile
      
      * Use 128 as minimus page_block_size
      
      * Fix wrong origin for bias
      
      * Add batch_stride_k/batch_stride_v in group mode
      
      * Unify origin
      
      * Add missing kernel arguments for group mode
      
      * Add paged-kv codegen logic for appendkv kernels
      
      * Add block_table kernel args for appendkv kernel
      
      * Add tile navigators to the appendkv kernel
      
      * Fix wrong tensor descriptor lengths
      
      * Pass re-created tile window to pipeline
      
      * Fix wrong strides for appendkv kernel
      
      * Allow transit tile_window to another page-block
      
      * Handle cross-page-block write
      
      * Donot perform write again if already in last page-block
      
      * Always add fmha_fwd() api
      
      * Add missing group mode argument
      
      * Remove debug macro usages
      
      * Rename option s_k_new to s_knew
      
      * Separate splitkv/non-splitkv args/traits
      
      * Remove fmha_fwd_dispatch()
      
      * Fix compilation errors
      
      * Remove dropout code in splitkv kernel
      
      * Allow problem types without define kHasDropout attr
      
      * Use generic lambda to init traits objects
      
      * Separate more non-splitkv & splitkv traits/args
      
      * Display more info for specific kernels
      
      * Show more detailed warning message
      
      * Rename 'max_num_blocks' to 'max_num_page_blocks'
      
      * Remove no-longer used pipeline files
      
      * Wrap code by #if directives
      
      * Move functors to the begining of validation code
      
      * Use generic lambda to init all the api traits/args
      
      * Fix wrong seqlen for kvcache
      
      * Add missing comment
      
      * Rename TileWindowNavigator to PageBlockNavigator
      
      * Only expose necessary methods (not attributes)
      
      * Re-order pipeline paremeters
      
      * Refine smoke_test_fwd.sh
      
      * Fix wrong arugment count
      
      * Make tile window directly via PageBlockNavigator
      
      * Remove unused template paremeter
      
      * Remove group mode from appendkv kernel
      
      * Fix skcheck logic
      
      * Fix wrong syntax in skcheck expr
      
      * Use meaningful options in smoke test
      
      * Remove options
      
      * Fix formatting
      
      * Fix more format
      
      * Re-organize bash functions
      
      * Pass cache_batch_idx to kernels
      
      * Support cache_batch_idx in example
      
      * Fix compilation error
      
      * Add more appendkv test
      
      * Add more case for appendkv
      
      * Fix unexisted attribute
      
      * Remove 0 < seqlen_knew constraint
      
      * Clarify the case in warning message
      
      * Remove macro checking
      
      * Force batch mode when invoking appendkv & splitkv apis
      
      * Fix mode overriding logics
      
      * Fix wrong parameter name
      
      * Randomize seqlen_k if use kvcache
      
      * Use randomized seqlen_k for kvcache
      
      * Avoid using too small rotary_cos & rotary_sin
      
      * Rename parameter
      
      * Add seqlen_q & seqlen_k rules
      
      * Add comment
      
      * Add more comments
      
      * Fix compilation errors
      
      * Fix typo in comment
      
      * Remove type argument
      
      * Avoid seqlen_k=0 for kvcache
      
      * Revert "Avoid seqlen_k=0 for kvcache"
      
      This reverts commit 21c4df89e416182e8e9bc78e67bd4b98dbb6c88d.
      
      * Fix wrong uneven split checking logics
      
      * Only randomize kvcache seqlen_k if 1 < batch
      
      * Return earlier if split is empty
      
      * Revert "Only randomize kvcache seqlen_k if 1 < batch"
      
      This reverts commit b9a4ab0d7e3c2beecc0fccafd2a13259dd06299c.
      
      * Re-order seqlen_k_start adjustment logics
      
      * Fix compilation errors
      
      * Re-format script
      
      * Find executable from folder automatically
      
      * Fix kvcache seqlen_k generating logic
      
      * Make comment more clear
      
      * Fix wrong knew/vew appending logic on host
      
      * Add s_barrier to sync threads
      
      * Revert "Add s_barrier to sync threads"
      
      This reverts commit d3f550f30c0a4d9df15c613015d5dff268d6746d.
      
      * Support only using 1 row of rotary_cos/rotary_sin
      
      * Rotate Q in different way
      
      * Unify tensor view creation logics
      
      * Fix wrong argument
      
      * Add mask to switch how we use the rotary_cos/sin
      
      * Move attr from traits to problem
      
      * Move has_mask to fmha_fwd_appendkv_args
      
      * Support use uint32_t as SAD operand in Alibi<>
      
      * Use sad_u32() in splitkv kernels
      
      * Store tensor views in PageBlockNavigator
      
      * Use stored tensor view to update tile windows
      
      * Enlarge tensor view size
      
      * Remove debug code
      
      * Fix wrong tensor view size
      
      * Wrap tensor view into PageBlockNavigator
      
      * Add DataType member to PageBlockNavigator
      
      * Remove unnecessary member functions
      
      * Refind macro use
      
      * Fix typo
      
      * Add blank line between directives and actual code
      
      * Re-format files
      
      * Remove type in comment
      
      ---------
      Co-authored-by: default avatarcarlushuang <carlus.huang@amd.com>
      Co-authored-by: default avatarrocking <ChunYu.Lai@amd.com>
      c1569892
  4. 26 Jun, 2024 1 commit
    • Po Yen Chen's avatar
      [CK_TILE] fmha forward split-kv + combine kernels (#1338) · 0cb2e06d
      Po Yen Chen authored
      
      
      * FA fwd dropout
      
      * FA bwd
      
      * epilogue reuse
      
      * CMakeLists update
      
      * [CK_TILE] support alibi (#1269)
      
      * add alibi support
      
      * fix code
      
      * update code based on comment
      
      * Support more hdim
      
      * fix fp8 bias
      
      * support seqlen_k=0 case
      
      * remove unused printf
      
      * fix format
      
      ---------
      Co-authored-by: default avatarrocking <ChunYu.Lai@amd.com>
      
      * now fwd/bwd can build
      
      * bwd alibi
      
      * add bwd validation stream_config
      
      * update generated filenames
      
      * update bwd kernel launch
      
      * CK_TILE_HOST_DEVICE in philox
      
      * Transpose -> transpose
      
      * format
      
      * format
      
      * format
      
      * Generate the instance for FA required
      
      * format
      
      * fix error in WarpGemm
      
      * Add num_splits option and dummy split-kv api method
      
      * Generate fmha_fwd_splitkv()
      
      * Add SplitKV kernel codegen logics
      
      * Add SplitKV combine kernel codegen logics
      
      * Fix mismatched return type
      
      * Clean-up code
      
      * Replace sentinel value before storing
      
      * Fix wrong layout of LSE/LSEacc/Oacc
      
      * Format codes
      
      * Fix o_acc memory error
      
      * Fix wrong kBlockSize used in policy
      
      * Reduce # of combine kernels
      
      * Fix split-kv combine kernel name
      
      * Fix wrong LDS indexing logics
      
      * Fix wrong loop counter step logic
      
      * Undo vector size changes
      
      * Remove no-longer used field
      
      * Remove in-consistent comment
      
      * Remove debug statements in example
      
      * Remove more debug statements
      
      * Add constness to local variables
      
      * Clearn up generate.py
      
      * Fix unstable clang-format comment
      
      * Remove unused include directive
      
      * Use shorter template parameter name
      
      * Enable non-split-kv blobs
      
      * Update license date
      
      * Print num_splits conditionally
      
      * Undo disabling data types
      
      * Remove unnessary tile size for fp8
      
      * Fix wrong pipeline args for fp8
      
      * Fix example output format
      
      * Remove more debug code in combine pipeline
      
      * Add stride kernel arguments for LSE/O acc workspace
      
      * Re-order split-kv pipeline call operator arguments
      
      * Pass LSE/O strides in kernel argument
      
      * Re-order pipeline call operator arguments
      
      * Use tensor_descriptor to locate LSEacc elements
      
      * Support providing invalid element for tensor view
      
      * Set invalid element value for LSEacc tensor view
      
      * Remove hand-written store_tile() code
      
      * Remove necessary value-overwrite logic
      
      * Add transposed lds descriptor
      
      * Support load_tile() for tile_window_with_static_lengths<>
      
      * Undo removing necessary value-overwrite logic
      
      * Use read descriptor to locate lds elements
      
      * Simplify pipeline source code
      
      * Add constraint to kMaxSplits
      
      * Default use kMaxSplits=64 in generate.py
      
      * Revert "Add constraint to kMaxSplits"
      
      This reverts commit 0a2132d758042e6fb0292f4e354909b8a4d1c118.
      
      * Revert "Default use kMaxSplits=64 in generate.py"
      
      This reverts commit c7d9c80b77320aec6559222bed7d47adcaefe4e3.
      
      * Decide alignment by the padding parameter
      
      * Remove no-longer used utility functions
      
      * Remove not-working code
      
      * Add comment & remove no-longer used code
      
      * Fix computation errors
      
      * Add heuristic to override num_splits option
      
      * Add constraint to kMaxSplits
      
      * Fix compilation error
      
      * Clean up pipeline code
      
      * Wrap pointer access as lambda function
      
      * Rename confusing methods
      
      * Use kLogMasSplits as template parameter
      
      * Finish splitkv combine kernel codegen
      
      * Update kMaxSplits limit
      
      * Use smaller kM0 for splitkv combine kernel
      
      * Ignore droupout flag in splitkv pipeline
      
      * Unify flag usage
      
      * Add back flag kStoreLSE
      
      * Merge lambda calls in pipeline
      
      * Fix compilation errors
      
      * Avoid all empty splits
      
      * Always check for empty loop in splitkv pipelines
      
      * Re-order parameters
      
      * Remove redundant p_drop option check
      
      * Add traits/problem for fwd splitkv kernel
      
      * Conditionally enable uneven split boundary checks
      
      * Add comment for the splitkv traits field
      
      * Change even split criteria
      
      * Re-order statements
      
      * Refine occupancy value for hdim=128&256
      
      * Refine occupancy value for hdim=32&64
      
      * Remove redundant kernel argument
      
      * Separate fmha bwd codegen logics
      
      * Separate fmha fwd codegen logics
      
      * Remove redundant direction parameter in fwd&bwd codegen logics
      
      * Support generate multiple APIs for an example
      
      * Let 'api' an alias of 'direction' option
      
      * Remove choices for the 'direction' option
      
      * Use dictionary to config all the functions
      
      * Move fmha splitkv codegen logics to other file
      
      * Add fwd_splitkv api for tile_example_fmha_fwd
      
      ---------
      
      Co-authored-by: danyao12 <danyao12>
      Co-authored-by: default avatarcarlushuang <carlus.huang@amd.com>
      Co-authored-by: default avatarrocking <ChunYu.Lai@amd.com>
      Co-authored-by: default avatarJing Zhang <jizhan@amd.com>
      0cb2e06d
  5. 04 Jun, 2024 1 commit
    • Dan Yao's avatar
      CK Tile FA Training kernels (#1286) · 2cab8d39
      Dan Yao authored
      
      
      * FA fwd dropout
      
      * FA bwd
      
      * epilogue reuse
      
      * CMakeLists update
      
      * [CK_TILE] support alibi (#1269)
      
      * add alibi support
      
      * fix code
      
      * update code based on comment
      
      * Support more hdim
      
      * fix fp8 bias
      
      * support seqlen_k=0 case
      
      * remove unused printf
      
      * fix format
      
      ---------
      Co-authored-by: default avatarrocking <ChunYu.Lai@amd.com>
      
      * now fwd/bwd can build
      
      * bwd alibi
      
      * add bwd validation stream_config
      
      * update generated filenames
      
      * update bwd kernel launch
      
      * CK_TILE_HOST_DEVICE in philox
      
      * Transpose -> transpose
      
      * format
      
      * format
      
      * format
      
      * Generate the instance for FA required
      
      * format
      
      * fix error in WarpGemm
      
      ---------
      
      Co-authored-by: danyao12 <danyao12>
      Co-authored-by: default avatarcarlushuang <carlus.huang@amd.com>
      Co-authored-by: default avatarrocking <ChunYu.Lai@amd.com>
      Co-authored-by: default avatarPo Yen Chen <PoYen.Chen@amd.com>
      Co-authored-by: default avatarJing Zhang <jizhan@amd.com>
      2cab8d39
  6. 28 May, 2024 1 commit
    • carlushuang's avatar
      [CK_TILE] support group from cmdline (#1295) · 5055b3bd
      carlushuang authored
      * support cmdline seqlen decode
      
      * silent print
      
      * update readme
      
      * update kernel launch 3d
      
      * update tile partitioner
      
      * fix spill for bf16
      
      * modify based on comment
      
      * modify payload_t
      
      * fix bug for alibi mode
      
      * fix alibi test err
      
      * refactor kernel launch, support select timer
      
      * add missing file
      
      * remove useless code
      
      * add some comments
      5055b3bd
  7. 07 May, 2024 1 commit
  8. 16 Apr, 2024 1 commit
    • carlushuang's avatar
      introducing ck_tile! (#1216) · db376dd8
      carlushuang authored
      * enable gfx940
      
      * switch between intrinsic mfma routines on mi100/200 and mi300
      
      * fix mfma_int8 on MI300
      
      * disable 2 int8 examples on MI300
      
      * Update cmake-ck-dev.sh
      
      * restore gitignore file
      
      * modify Jenkinsfile to the internal repo
      
      * Bump rocm-docs-core from 0.24.0 to 0.29.0 in /docs/sphinx
      
      Bumps [rocm-docs-core](https://github.com/RadeonOpenCompute/rocm-docs-core) from 0.24.0 to 0.29.0.
      - [Release notes](https://github.com/RadeonOpenCompute/rocm-docs-core/releases)
      - [Changelog](https://github.com/RadeonOpenCompute/rocm-docs-core/blob/develop/CHANGELOG.md)
      - [Commits](https://github.com/RadeonOpenCompute/rocm-docs-core/compare/v0.24.0...v0.29.0
      
      )
      
      ---
      updated-dependencies:
      - dependency-name: rocm-docs-core
        dependency-type: direct:production
        update-type: version-update:semver-minor
      ...
      Signed-off-by: default avatardependabot[bot] <support@github.com>
      
      * initial enablement of gfx950
      
      * fix clang format
      
      * disable examples 31 and 41 int8 on gfx950
      
      * add code
      
      * fix build wip
      
      * fix xx
      
      * now can build
      
      * naming
      
      * minor fix
      
      * wip fix
      
      * fix macro for exp2; fix warpgemm a/b in transposedC
      
      * unify as tuple_array
      
      * Update the required Python version to 3.9
      
      * Update executable name in test scripts
      
      * re-structure tuple/array to avoid spill
      
      * Merge function templates
      
      * Fix format
      
      * Add constraint to array<> ctor
      
      * Re-use function
      
      * Some minor changes
      
      * remove wrong code in store_raw()
      
      * fix compile issue in transpose
      
      * Rename enum
      Rename 'cood_transform_enum' to 'coord_transform_enum'
      
      * let more integral_constant->constant, and formating
      
      * make sure thread_buffer can be tuple/array
      
      * temp fix buffer_store spill
      
      * not using custom data type by default, now we can have ISA-level same code as opt_padding
      
      * fix compile error, fp8 not ready now
      
      * fix fp8 duplicated move/shift/and/or problem
      
      * Default use CK_TILE_FLOAT_TO_FP8_STOCHASTIC rounding mode
      
      * fix scratch in fp8 kernel
      
      * update some readme
      
      * fix merge from upstream
      
      * sync with upstream
      
      * sync upstream again
      
      * sync 22
      
      * remove unused
      
      * fix clang-format
      
      * update README of ck_tile example
      
      * fix several issue
      
      * let python version to be 3.8 as minimal
      
      * remove ck_tile example from default cmake target like all/install/check
      
      * remove mistake
      
      * 1).support receipe in generate.py 2).use simplified mask type 3).change left/right to pass into karg
      
      * fix some bug in group-mode masking and codegen. update README
      
      * F8 quantization for FMHA forward (#1224)
      
      * Add SAccElementFunction, PComputeElementFunction, OAccElementFunction in pipeline
      
      * Add element function to fmha api
      
      * Adjust P elementwise function
      
      * Fix bug of elementwise op, our elementwise op is not inout
      
      * Add some elementwise op, prepare to quantization
      
      * Let generate.py can generate different elementwise function
      
      * To prevent compiler issue, remove the elementwise function we have not used.
      
      * Remove f8 pipeline, we should share the same pipeline even in f8
      
      * Remove remove_cvref_t
      
      * Avoid warning
      
      * Fix wrong fp8 QK/KV block gemm setting
      
      * Check fp8 rounding error in check_err()
      
      * Set fp8 rounding error for check_err()
      
      * Use CK_TILE_FLOAT_TO_FP8_STANDARD as default fp8 rounding mode
      
      * 1. codgen the f8 api and kernel
      2. f8 host code
      
      * prevent warning in filter mode
      
      * Remove not-in-use elementwise function kargs
      
      * Remove more not-in-use elementwise function kargs
      
      * Small refinements in C++ source files
      
      * Use conditional_t<> to simplify code
      
      * Support heterogeneous argument for binary function types
      
      * Re-use already-existing scales<> functor template
      
      * Fix wrong value produced by saturating
      
      * Generalize the composes<> template
      
      * Unify saturates<> implementation
      
      * Fix type errors in composes<>
      
      * Extend less_equal<>
      
      * Reuse the existing template less_equal<> in check_err()
      
      * Add equal<float> & equal<double>
      
      * Rename check_err() parameter
      
      * Rename check_err() parameter
      
      * Add FIXME comment for adding new macro in future
      
      * Remove unnecessary cast to void
      
      * Eliminate duplicated code
      
      * Avoid dividing api pool into more than 2 groups
      
      * Use more clear variable names
      
      * Use affirmative condition in if stmt
      
      * Remove blank lines
      
      * Donot perfect forwarding in composes<>
      
      * To fix compile error, revert generate.py back to 4439cc107dd90302d68a6494bdd33113318709f8
      
      * Fix bug of p element function
      
      * Add compute element op to host softmax
      
      * Remove element function in api interface
      
      * Extract user parameter
      
      * Rename pscale and oscale variable
      
      * rename f8 to fp8
      
      * rename more f8 to fp8
      
      * Add pipeline::operator() without element_functor
      
      * 1. Remove deprecated pipeline enum
      2. Refine host code parameter
      
      * Use quantization range as input
      
      * 1. Rename max_dtype to dtype_max.
      2. Rename scale to scale_s
      3.Add init description
      
      * Refine description
      
      * prevent early return
      
      * unify _squant kernel name in cpp, update README
      
      * Adjust the default range.
      
      * Refine error message and bias range
      
      * Add fp8 benchmark and smoke test
      
      * fix fp8 swizzle_factor=4 case
      
      ---------
      Co-authored-by: default avatarPo Yen Chen <PoYen.Chen@amd.com>
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