# Release Notes ## MindSpore 2.0.0-alpha Release Notes ### Major Features and Improvements #### PyNative - The default mode of MindSpore is switched to PyNative. If you want to manually set the mode, please refer to https://www.mindspore.cn/tutorials/zh-CN/master/advanced/compute_graph.html. - Support dynamic shape without padding, three networks are supported as demos: Transformer-GPU, YOLOV5-GPU, ASR-Ascend. Transformer-GPU and YOLOV5-GPU can be downloaded from https://gitee.com/mindspore/models/tree/dynamic_shape. Only the following operators are available on Ascend backend：Add、Assign、BatchMatMul、BiasAdd、BiasAddGrad、Cast、Conv2D、Conv2DBackpropFilter、Conv2DBackpropInput、CTCLoss、Div、Dropout、DropoutDoMask、Equal、ExpandDims、Gather、GetNext、LayerNorm、LayerNormGrad、LessEqual、Load、Log、LogicalAnd、LogicalNot、LogicalOr、LogSoftmax、LogSoftmaxGrad、MatMul、Maximum、Mul、Neg、NotEqual、NPUAllocFloatStatus、NPUClearFloatStatus、OneHot、RealDiv、Reciprocal、ReduceMean、ReduceSum、ReLU、ReluGrad、Reshape、Select、Softmax、StridedSlice、Sub、Tile、Transpose、UnsortedSegmentSum、ZerosLike。The remaining operators have not been fully verified, please use them as appropriate. #### DataSet - The TFRecordDataset API can directly read TFRecord files compressed by GZIP or ZLIB. - The NumpySliceDataset API can process data of different dimensions at the same time. - Optimize the structure of error log to display more clear call stack information for debugging. - Fixed `mindspore.dataset.config.set_seed` does not take effect for random seeds in distributed training scenarios. #### AutoParallel - Supports more operators with distributed implements. Element Wise Operators:AddN, BitwiseAnd, BitwiseOr, BitwiseXor, CumProd, HShrink, HSigmoid, IsFinite, Mish, MulNoNan, Rint, SeLU, SoftShrink, TruncateDiv, TruncateMod, Xdivy Xlogy, InplaceAdd, InplacSub, InplaceUpdate, Cdist, L2Loss, Lerp. Math Operators:SquaredDifference, Erfinv, MaskedFill, SplitV, Gamma, KLDivLoss, LinSpace. Scatter Operators:ScatterAdd,ScatterDiv,ScatterMax,ScatterMul,ScatterNdAdd,ScatterNdSub,ScatterNdUpdate,ScatterSub,TensorScatterAdd,TensorScatterDiv,TensorScatterMax,TensorScatterMax,TensorScatterMul,TensorScatterAdd,TensorScatterUpdate. - Add new apis `transform_checkpoints` and `transform_checkpoint_by_rank` to transfer the distributed checkpoint files by strategy files. Please refer to https://www.mindspore.cn/tutorials/experts/en/master/parallel/resilience_train_and_predict.html。 ### API Change #### operator - [STABLE] Add operator primitive for `mindspore.ops.AdaptiveMaxPool3D`. - [STABLE] Add operator primitive for `mindspore.ops.AdjustHue`. - [STABLE] Add operator primitive for `mindspore.ops.BartlettWindow`. - [STABLE] Add operator primitive for `mindspore.ops.BesselJ0`. - [STABLE] Add operator primitive for `mindspore.ops.BesselJ1`. - [STABLE] Add operator primitive for `mindspore.ops.BesselK0`. - [STABLE] Add operator primitive for `mindspore.ops.BesselK0e`. - [STABLE] Add operator primitive for `mindspore.ops.BesselK1`. - [STABLE] Add operator primitive for `mindspore.ops.BesselK1e`. - [STABLE] Add operator primitive for `mindspore.ops.BesselY0`. - [STABLE] Add operator primitive for `mindspore.ops.BesselY1`. - [STABLE] Add operator primitive for `mindspore.ops.Betainc`. - [STABLE] Add operator primitive for `mindspore.ops.Bincount`. - [STABLE] Add operator primitive for `mindspore.ops.BlackmanWindow`. - [STABLE] Add operator primitive for `mindspore.ops.Bucketize`. - [STABLE] Add operator primitive for `mindspore.ops.CombinedNonMaxSuppression`. - [STABLE] Add operator primitive for `mindspore.ops.CompareAndBitpack`. - [STABLE] Add operator primitive for `mindspore.ops.Complex`. - [STABLE] Add operator primitive for `mindspore.ops.DataFormatVecPermute`. - [STABLE] Add operator primitive for `mindspore.ops.Eig`. - [STABLE] Add operator primitive for `mindspore.ops.EuclideanNorm`. - [STABLE] Add operator primitive for `mindspore.ops.Expand`. - [STABLE] Add operator primitive for `mindspore.ops.ExtractGlimpse`. - [STABLE] Add operator primitive for `mindspore.ops.FillDiagonal`. - [STABLE] Add operator primitive for `mindspore.ops.FractionalAvgPool`. - [STABLE] Add operator primitive for `mindspore.ops.FractionalMaxPool`. - [STABLE] Add operator primitive for `mindspore.ops.Gcd`. - [STABLE] Add operator primitive for `mindspore.ops.HammingWindow`. - [STABLE] Add operator primitive for `mindspore.ops.Histogram`. - [STABLE] Add operator primitive for `mindspore.ops.HSVToRGB`. - [STABLE] Add operator primitive for `mindspore.ops.Lcm`. - [STABLE] Add operator primitive for `mindspore.ops.LeftShift`. - [STABLE] Add operator primitive for `mindspore.ops.ListDiff`. - [STABLE] Add operator primitive for `mindspore.ops.LogSpace`. - [STABLE] Add operator primitive for `mindspore.ops.Lstsq`. - [STABLE] Add operator primitive for `mindspore.ops.MatrixDiagPartV3`. - [STABLE] Add operator primitive for `mindspore.ops.MatrixDiagV3`. - [STABLE] Add operator primitive for `mindspore.ops.MatrixExp`. - [STABLE] Add operator primitive for `mindspore.ops.MatrixPower`. - [STABLE] Add operator primitive for `mindspore.ops.MaxPool3DWithArgmax`. - [STABLE] Add operator primitive for `mindspore.ops.MaxUnpool2D`. - [STABLE] Add operator primitive for `mindspore.ops.MultilabelMarginLoss`. - [STABLE] Add operator primitive for `mindspore.ops.NextAfter`. - [STABLE] Add operator primitive for `mindspore.ops.Orgqr`. - [STABLE] Add operator primitive for `mindspore.ops.ReduceStd`. - [STABLE] Add operator primitive for `mindspore.ops.ResizeNearestNeighborV2`. - [STABLE] Add operator primitive for `mindspore.ops.RGBToHSV`. - [STABLE] Add operator primitive for `mindspore.ops.RightShift`. - [STABLE] Add operator primitive for `mindspore.ops.Roll`. - [STABLE] Add operator primitive for `mindspore.ops.SampleDistortedBoundingBoxV2`. - [STABLE] Add operator primitive for `mindspore.ops.ScaleAndTranslate`. - [STABLE] Add operator primitive for `mindspore.ops.ScatterAddWithAxis`. - [STABLE] Add operator primitive for `mindspore.ops.ScatterNdDiv`. - [STABLE] Add operator primitive for `mindspore.ops.ScatterNdMax`. - [STABLE] Add operator primitive for `mindspore.ops.ScatterNdMul`. - [STABLE] Add operator primitive for `mindspore.ops.STFT`. - [STABLE] Add operator primitive for `mindspore.ops.Trace`. - [STABLE] Add operator primitive for `mindspore.ops.UpsampleNearest3D`. - [STABLE] Add operator primitive for `mindspore.ops.UpsampleTrilinear3D`. - [STABLE] Add distributed weight conversion interface `mindspore.parallel.transform_checkpoints`. - [STABLE] Add distributed weight conversion interface `mindspore.parallel.transform_checkpoint_by_rank`. #### Backwards Incompatible Change ##### Python API - The `mindspore.ms_function` interface is renamed to `mindspore.jit`, and `mindspore.ms_function` will be deprecated and removed in a future version. - The `mindspore.ms_class` interface is renamed to `mindspore.jit_class`, and `mindspore.ms_class` will be deprecated and removed in a future version. - The `mindspore.dataset.map` interface parameter `column_order` does not take effect, use`mindspore.dataset.project`. - The `mindspore.dataset.close_pool` and `mindspore.dataset.to_device` and `mindspore.dataset.set_dynamic_columns` are deprecated and removed in this version. ### Bug fixes - Fixed an issue where the mixed precision functional interface could not modify the backend driver in graph mode - Fixed the problem that users can automatically transfer device_id in the single-P scenario for the following networks:（mobilenetv1/fasterrcnn/yolov3/yolov4/yolov5/unet/openpose/simplepose/crnn/gnmtv2/faceattribute/facequality/facedetection） ### Contributors Thanks goes to these wonderful people: AGroupofProbiotocs, anzhengqi, askmiao, baihuawei, baiyangfan, bai-yangfan, bingyaweng, BowenK, buxue, caifubi, CaoJian, caojian05, caozhou, Cathy, changzherui, chenbo116, chenfei, chengxianbin, chenhaozhe, chenjianping, chenzomi, chenzupeng, chujinjin, cj, cjh9368, Corleone, damon0626, danish, Danish, davidmc, dayschan, doitH, dong-li001, fary86, fuzhiye, Gaoxiong, GAO_HYP_XYJ, gengdongjie, Gogery, gongdaguo, gray0v0, gukecai, guoqi, gzhcv, hangq, hanhuifeng2020, Harshvardhan, He, heleiwang, hesham, hexia, Hoai, HuangBingjian, huangdongrun, huanghui, huangxinjing, huqi, huzhifeng, hwjiaorui, Jiabin Liu, jianghui58, Jiaqi, jin-xiulang, jinyaohui, jjfeing, John, jonyguo, JulyAi, jzg, kai00, kingfo, kingxian, kpy, kswang, liuyongqi, laiyongqiang, leonwanghui, liangchenghui, liangzelang, lichen_101010, lichenever, lihongkang, lilei, limingqi107, ling, linqingke, Lin Xh, liubuyu, liuwenhao4, liuxiao78, liuxiao93, liuyang_655, liuzhongkai, Lixia, lixian, liyanliu, liyong, lizhenyu, luopengting, lvchangquan, lvliang, lz, maning202007, Margaret_wangrui, mengyuanli, Ming_blue, ms_yan, ougongchang, panfengfeng, panyifeng, Payne, Peilin, peixu_ren, Pengyongrong, qianlong, qianjiahong, r1chardf1d0, riemann_penn, rmdyh, Sheng, shenwei41, simson, Simson, Su, sunsuodong, tao_yunhao, tinazhang, VectorSL, , Wan, wandongdong, wangdongxu, wangmin, wangyue01, wangzhe, wanyiming, Wei, wenchunjiang, wilfChen, WilliamLian, wsc, wudenggang, wukesong, wuweikang, wuxuejian, Xiao Tianci, Xiaoda, xiefangqi, xinyunfan, xuanyue, xuyongfei, yanghaitao, yanghaitao1, yanghaoran, YangLuo, yangruoqi713, yankai, yanzhenxiang2020, yao_yf, yepei6, yeyunpeng, Yi, yoni, yoonlee666, yuchaojie, yujianfeng, yuximiao, zengzitao, Zhang, zhanghuiyao, zhanghui_china, zhangxinfeng3, zhangyihui, zhangz0911gm, zhanke, zhanyuan, zhaodezan, zhaojichen, zhaoting, zhaozhenlong, zhengjun10, zhiqwang, zhoufeng, zhousiyi, zhouyaqiang, zhouyifengCode, Zichun, Ziyan, zjun, ZPaC, wangfengwfwf, zymaa, gerayking, shu-kun-zhang. Contributions of any kind are welcome!