DŽgKkddlZddlmZddlmZmZmZmZmZm Z ddl Z ddl m Z m Z ddlmZmZmZmZmZmZmZmZmZgdZeddZGd d e j4Z dd e j4d ed efdZGddeZGddeZy)N) namedtuple)AnyCallableDictListOptionalTuple))sparse_semi_structured_from_dense_cutlass'sparse_semi_structured_to_dense_cutlass) fallback_dispatchersemi_sparse_addmmsemi_sparse_detachsemi_sparse_indicessemi_sparse_linearsemi_sparse_mm semi_sparse_tsemi_sparse_valuessemi_sparse_view)SparseSemiStructuredTensor!SparseSemiStructuredTensorCUTLASS$SparseSemiStructuredTensorCUSPARSELTto_sparse_semi_structured_SEMI_STRUCTURED_SPARSE_CONFIGz=sparse_min_rows sparse_min_cols dense_min_rows dense_min_colsc$eZdZUdZdZeed<eeje fed<dZ e ed<dZ e ed<dZe ed <eed <eeefed <eej$ed <eej$ed <eej$ed<eej$ed<eej$ed<e ed<eed<gdZe d)dej*d eej$d eej$deej$deej$deej$de dede fdZdefdZdeeeeej*e ee fffdZedeej*e ee fdej$fdZej:j<Zede fdZ!ed*d+dZ"edej$ddfd Z#ed!ej$dej$fd"Z$d#Z%edej$ddfd$Z&dd%d&ej$d'eej$dej$fd(Z'y),ra This class implementes semi-structured sparsity as a Tensor subclass. Semi-structured sparsity describes a sparsity pattern where n in every 2n elements are sparse, depending on the datatype. It is also referred to as 2:4 sparsity or fine-grained structured sparsity. There are two backends available for semi_structred sparsity, either cuSPARSELt or CUTLASS. This class is meant to serve as a base class for both implementations. SparseSemiStructuredCUTLASS and SparseSemiStructuredCUSPARSELT both inherit from this class and define three backend-specific items. Note that as such, this class cannot be insantiated directly. -`_DTYPE_SHAPE_CONSTRAINTS` - A dictionary holding backend specific dense/sparse min shape constraints - `def from_dense()` - backend specific compression routines - `def _mm()` - backend specifc mm op (either torch._cslt_sparse_mm or torch._sparse_semi_structured_(mm|addmm)) r_DEFAULT_ALG_ID_DTYPE_SHAPE_CONSTRAINTST_FORCE_CUTLASSF_FUSE_TRANSPOSE_PROTOTYPE_WARNING_SHOWNBACKENDSPARSE_DISPATCHpackedmetapacked_tmeta_tcompressed_swizzled_bitmaskfuse_transpose_cusparseltalg_id_cusparselt)r"r#r$r%r&shape requires_gradc |jsPtjdtd|_|j t j j|||} n||} n td| j| j| j| d} t jj||fi| } || _|| _|| _|| _|| _|| _|| _| S)a0 Create a new instance of the tensor subclass from the compressed sparse representation. We have the option to create the subclass with the compressed representations of both X and X', for training. For inference, we only need a single representation (either X or X'), while the corresponding other set will be None. Depending on the backend selected, certain fields will be set to None. (CUSPARSELT vs CUTLASS) Args: shape: The shape of the original dense tensor packed: The compressed representation of the original dense tensor meta: The metadata of the original dense tensor, if it is stored separately packed_t: The compressed representation of the transposed original dense tensor meta_t: The metadata of the transposed original dense tensor, if it is stored separately compressed_swizzled_bitmask: The masks used by the CUTLASS backend to determine which threads should participate in the computation. Used for pointwise ops. fuse_transpose_cusparselt: When running with cuSPARSELt, we have the option to fuse a transposition with a matmul, which is useful in the case of 2:4 sparse training. alg_id_cusparselt: The algorithm id to use when using cuSPARSELT, will have effect on performance Returns: torch.Tensor: A torch.Tensor wrapper subclass. Raises: ValueError: If all of the tensor arguments are None. zThe PyTorch API of SparseSemiStructuredTensor is in prototype stage and will change in the near future. Please open a Github issue for features requests and see our documentation on the torch.sparse module for further information about the project.Tz3At least one of packed or packed_t must be provided)devicedtypelayoutr*)rwarningswarn UserWarning_load_dispatch_tabletorch_dynamoallow_in_graph ValueErrorr,r-r.Tensor_make_wrapper_subclassr"r#r$r%r&r'r() clsr)r"r#r$r%r&r'r(r*previous_tensorkwargstensors d/home/mcse/projects/flask_80/flask-venv/lib/python3.12/site-packages/torch/sparse/semi_structured.py__new__z"SparseSemiStructuredTensor.__new__JsN++ MMH  ,0C (  $ $ & MM ( ( -  $O  !&ORS S&,,$**%,,*   44S%J6J  " -H*+D(#4  returncjt|dsJ|jjd|jdS)Nr)z(shape=))hasattr __class____name__r))selfs r=__repr__z#SparseSemiStructuredTensor.__repr__s4tW%%%..))*'$**Q??r?cttfdj}jjj j f}||fS)Nc t|duSN)getattr)xrFs r=z?SparseSemiStructuredTensor.__tensor_flatten__..sWT1-T9r?)listfilter __slots__r)r'r(r*)rF inner_tensors tensor_metas` r=__tensor_flatten__z-SparseSemiStructuredTensor.__tensor_flatten__sV 94>> J  JJ  * *  " "     k))r?rRc |\}}}}|||jdd|jdd|jdd|jdd|jdd||| S)Nr"r#r$r%r& r)r"r#r$r%r&r'r(r*)get) r9rQrR outer_size outer_strider)r'r(r*s r=__tensor_unflatten__z/SparseSemiStructuredTensor.__tensor_unflatten__sNYJ(*;] $$Xt4""640"&&z48 $$Xt4(5(9(9-t)'@/'  r?c|j|jvr%t|jd|jd|j|j||||S)NzI only supports a specific set of operations, can't perform requested op (rB)_overloadpacketr!NotImplementedErrorrE)r9functypesargsr;s r=__torch_dispatch__z-SparseSemiStructuredTensor.__torch_dispatch__sh   s':': :%<<.!//3}}oQ@ 9s""4#7#78udFSSr?Nc,t|ddtjjjt tjjj ttjjjttjjjttjjjttjjjttjjjt tjjj"t$tjjj&t$tjjj(t*tjjj,t.tjjj0ti |_||j2j5|yyy)zT Loads the op overload sparse dispatch table for the current class. r!N)rKr3opsatenvaluesrindicesr is_same_sizer detach_detachrtrviewrmmrmatmuladdmmr linearr_to_copyr!update)r9custom_dispatch_tables r=r2z/SparseSemiStructuredTensor._load_dispatch_tables2 3)4 0 8 %%'9 &&(; ++-@ &&(; %%'9   - ##%5 !!> %%~ $$&7 %%'9 '')< #C %0##**+@A1 9r?original_tensorc V|jstd|jd|jdk7rtd|jd|j s td|j |j vrtd|j d|j\}}|j |j j}|j |j j}||ks||zs ||ks||zrtd |jd |d |d y )z_ Assert that the given tensor is valid for semi-structured sparse compression. zError original_tensor.device= z= is not supported! Only CUDA tensors are currently supported.zError original_tensor.dim = z; is not supported! Only 2d tensors are currently supported.zXError original_tensor is not contiguous!Only contiguous tensors are currently supported.zError original_tensor.dtype zO is not a supported dtype! dtype must be one of: {cls._DTYPE_SHAPE_CONSTRAINTS}zError original_tensor.shape zS is not supported! Both dimensions must be larger or equal than and a multiple of (z, rBN) is_cuda RuntimeErrorr,dim is_contiguousr-rr)sparse_min_rowssparse_min_cols)r9rrmnmin_rowsmin_colss r= _validate_device_dim_dtype_shapez;SparseSemiStructuredTensor._validate_device_dim_dtype_shapesp &&01G1G0HI==     A %./B/B/D.EF;;  ,,.C   (D(D D./D/D.EFGG  $$1//0E0EFVV//0E0EFVV x<1x<1x<1x<./D/D.EFSS[R\\^_g^hhik rGr rrS classmethodrY_C_disabled_torch_function_impl__torch_function__rr`r2rrrrrr?r=rr%s"OS"5;;0N#NOOND!OT!%*d* L(H,-- U\\ "" 5<<  u||$$ U\\ ""!)%,,!77##WI+0!"#PzzP&Pu||$ P 5<<( P & P&.ell%;P$(PPPPd@#@ * tCy% D#t ;<< = * 5::tS$67    ,??TcTTBB,)u||)PT))V5<<ELL*T"":V""(, " <<"u||$ "  "r?rrr transposedr@c|rtjdtdtjrt j jnt j j}|j|S)a This function converts a dense tensor into a sparse semi-structured tensor. It will return a SparseSemiStructuredTensor, a subclass of torch.Tensor. This function will check to ensure the dense tensor has the right dtype, size, dims, and device. We currently only support semi-structured sparse tensors for 2d CUDA tensors. Additionally, your tensor must be a positive multiple of the mininum sparse block size, given in `_DTYPE_TO_SHAPE_CONSTRAINTS` for each dtype (float32, float16, bfloat16, int8). Args: original_tensor (Tensor): the dense tensor to convert transposed (bool, optional): deprecated arg to be removed in another release. Do not use. Returns: SparseSemiStructuredTensor: A sparse semi-structured tensor created from the given original_tensor Raises: None Example: >>> # xdoctest: +REQUIRES(env:TORCH_DOCTEST_CUDA) >>> A = torch.Tensor([0, 0, 1, 1]).tile((128, 32)).half().cuda() tensor([[0., 0., 1., ..., 0., 1., 1.], [0., 0., 1., ..., 0., 1., 1.], [0., 0., 1., ..., 0., 1., 1.], ..., [0., 0., 1., ..., 0., 1., 1.], [0., 0., 1., ..., 0., 1., 1.], [0., 0., 1., ..., 0., 1., 1.]], device='cuda:0', dtype=torch.float16) >>> A_sparse = to_sparse_semi_structured(A) SparseSemiStructuredTensor(shape=torch.Size([128, 128])) >>> A_sparse.values() tensor([[1., 1., 1., ..., 1., 1., 1.], [1., 1., 1., ..., 1., 1., 1.], [1., 1., 1., ..., 1., 1., 1.], ..., [1., 1., 1., ..., 1., 1., 1.], [1., 1., 1., ..., 1., 1., 1.], [1., 1., 1., ..., 1., 1., 1.]], device='cuda:0', dtype=torch.float16), >>> A_sparse.indices() tensor([[-4370, -4370, -4370, ..., -4370, -4370, -4370], [-4370, -4370, -4370, ..., -4370, -4370, -4370], [-4370, -4370, -4370, ..., -4370, -4370, -4370], ..., [-4370, -4370, -4370, ..., -4370, -4370, -4370], [-4370, -4370, -4370, ..., -4370, -4370, -4370], [-4370, -4370, -4370, ..., -4370, -4370, -4370]], device='cuda:0', dtype=torch.int16)) zSetting transpose from `to_sparse_semi_structured` is deprecated and will be removed in a future release. `SparseSemiStructuredTensor` only support contiguous input tensors.rt) stacklevel) r/r0 FutureWarningrrr3sparserrr)rrrSPARSE_SUBCLASSs r=rr<sab  R    & 4 4  66 \\ > >  % %o 66r?c eZdZdZdZej eddddejeddddejeddddejeddddiZ e d ejd dfd Zfd Ze dd ejd d fdZdddejdeejd ejfdZxZS)ra This class implements semi-structured sparsity for the CUTLASS backend. In this implementation, the specified elements and metadata are stored seprately, in packed and meta respectively. When _FORCE_CUTLASS is set, or when cuSPARSELt is not available, this subclass calls into _sparse_semi_structured_(mm|addmm) and sparse_semi_structured_from_dense for conversion to the compressed format. cutlass @rrr@c |j|t|\}}||j||ddd|jS)Nr"r#r$r%r&r*)rr r)r*)r9rrsparse_tensor_cutlassmeta_tensor_cutlasss r=rz,SparseSemiStructuredTensorCUTLASS.from_densesU ,,_= 6o F !   ! !($(,)77  r?c|j |jJ|jjdk(r t|j|jSt|S)Nrt)r#r"ndimr superr)rFrDs r=rz*SparseSemiStructuredTensorCUTLASS.to_denses]yy$)@@@ yy~~" 4    !#  r?rc ptj||d\}}}}}||j|||||dS)a This function takes in a unpruned dense tensor and runs a (branchless) static sort across a 4x4 tile. It greedily picks the largest values in the tile, upholding the 2:4 sparsity constraint across both rows and columns. The algorithm used to prune the matrix is implemented in `_sparse_semi_structured_tile`. Then it creates the packed and meta tensors for the compressed sparse representation of the pruned dense tensor. It also calculates the packed_t and meta_t tensors for the compressed sparse representation of the transposed pruned dense tensor. Since we cannot transpose the compressed representations, we store both for the fw/bw pass respectively. Finally, this function also computes a compressed swizzled bitmask that encodes the sparsity pattern This can be used in the backward pass to mask the gradients. [9 1 7 4] [9 0 7 0] [1 2 3 0] [0 2 0 0] [8 3 5 4] -> prune 4x4 tile -> [8 0 0 4] -> pack to CUTLASS semi-structured -> packed [1 2 6 2] [0 0 6 2] -> metadata -> pack to transposed CUTLASS -> packed_t semi-structured representation -> metadata_t -> compute swizzled bitmask -> compressed_swizzled_bitmask The equivalent PyTorch code to create the same five outputs from the dense tensor can be found below: ``` from torch.sparse import SparseSemiStructuredTensorCUTLASS from torch.sparse._semi_structured_conversions import _sparse_semi_structured_tile, _compute_compressed_swizzled_bitmask pruned = _sparse_semi_structured_tile(dense) packed_cutlass, meta_cutlass = sparse_semi_structured_from_dense_cutlass(pruned) packed_t_cutlass, meta_t_cutlass = sparse_semi_structured_from_dense_cutlass(pruned.t().contiguous()) bitmask = _compute_compressed_swizzled_bitmask(pruned) SparseSemiStructuredTensorCUTLASS(dense.shape, packed_cutlass, meta_cutlass, packed_t_cutlass, meta_t_cutlass, bitmask) ``` T algorithm use_cutlassFrr3_sparse_semi_structured_tiler)r9rrrr"r#r$r%r&s r=prune_dense_static_sortz9SparseSemiStructuredTensorCUTLASS.prune_dense_static_sortsXb  . . yd      '   ! !(C  r?Nrrrc t|tr td|jj}|j dk7s|j dk7rt d|d|j |jt d|d|,tj|j|j|}n,tj||j|j|}|d|jdS)NZ`SparseSemiStructuredTensor @ SparseSemiStructuredTensor` is not supported by the hardwarert`)` matmul: Broadcasting is not implemented$` matmul: operation is not supportedr) isinstancerr6rDrErr\r"r#r3_sparse_semi_structured_mm_sparse_semi_structured_addmmr))rFrrr;cls_nameress r=rz%SparseSemiStructuredTensorCUTLASS._mms a3 4l >>** 99>QVVq[%H:FG  ;; $))"3%H:AB |66t{{DIIqQ99$++tyy!A' 'r?)rErrrr r3int8rfloat16bfloat16float32rrr7rrrrr __classcell__)rDs@r=rrs G 22sBC 5b"aC 6r2q!D 5b"aC   #ll ,  $  68< #ll< %< < ~BF(((0(>( (r?rc ReZdZdZdZej eddddejeddddejeddddiZ e dejddfdZ e ddejdd fd Zd d d ejdeejdejfdZy )ra The cuSPARSELt backend expects the specified elements and the metadata to be stored in a single tensor: packed = [ specified elements of original tensor | metadata ] For an original tensor of size (m, k) we expect the first m * k // 2 elements to be the kept elements The rest of the tensor is metadata. Since there is only one tensor, we only use the packed and packed_t attributes respectively. cuSPARSELt also supports transposition fusion, which is necessary for performant 2:4 sparse training, as well as specifying alg_id, a config that affects the performance of the matmul depending on matmul sizes. cusparseltrrrrrr@c |j|||jtj|ddddtj tj |j S)NrU)rr)r3_cslt_compressrrrr*rs r=rz/SparseSemiStructuredTensorCUSPARSELT.from_denses] ,,_=!''''8(,&@&P&P8HH)77  r?rc ptj||d\}}}}}||j|||||dS)a This function does the same thing as described in SparseSemiStructuredCUTLASS, but uses the cuSPASRELt metadata layout and sparse matmul. The only functional difference is that cuSPARSELt stores `metadata` and `packed` together into a single tensor. [9 1 7 4] [9 0 7 0] [1 2 3 0] [0 2 0 0] [8 3 5 4] -> prune 4x4 tile -> [8 0 0 4] -> pack to cuSPARSELT semi-structured -> packed [1 2 6 2] [0 0 6 2] -> pack to transposed cuSPARSELt -> packed_t semi-structured representation -> compute swizzled bitmask -> compressed_swizzled_bitmask The equivalent PyTorch code to create the same three outputs from the dense tensor can be found below: ``` from torch.sparse import SparseSemiStructuredTensorCUSPARSELT from torch.sparse._semi_structured_conversions import _sparse_semi_structured_tile, _compute_compressed_swizzled_bitmask pruned = _sparse_semi_structured_tile(dense) packed_cusparselt = torch._cslt_compress(pruned) packed_t_cusparselt = torch._cslt_compress(pruned.t().contiguous()) bitmask = _compute_compressed_swizzled_bitmask(pruned) SparseSemiStructuredTensorCUSPARSELT(dense.shape, packed_cutlass, None, packed_t_cutlass, None, bitmask) ``` Frrrrs r=rzQVVq[%DNN++,,UV  77djj %DNN++,,FuTZZGXFYY^_defelel_m^no $ |= BYY    djj 8%DNN++,,FuTZZGXFYY^_defelel_m^no\\  ;; %DNN++,,PQ '' !%!?!?-- C#<<3557 E# Er?r)rErrrr r3rrrrrrr7rrrrrr?r=rr s G 22r2rB 5b"aC 6r2q!D   #ll /  683 #ll3 %3 3 lBF#F#F(0(>#F #Fr?r)F) r/ collectionsrtypingrrrrrr r3)torch.sparse._semi_structured_conversionsr r !torch.sparse._semi_structured_opsr r rrrrrrr__all__rr7rrrrrrr?r=rs"==     ",$C" T"T"rA7\\A7A7 A7HH((BH(V}F+E}Fr?