Pytorch indexing
WebIndexing a tensor in the PyTorch C++ API works very similar to the Python API. All index types such as None / ... / integer / boolean / slice / tensor are available in the C++ API, … WebJun 7, 2024 · index = torch.tensor ( [0, 1, 0, 0]).view (N, -1) # => tensor ( [ [0, 1], # [0, 0]]) # Every batch gets its index and is repeated across dim=1 batch_index = torch.arange (N).view (N, 1).expand_as (index) # => tensor ( [ [0, 0], # [1, 1]]) L [batch_index, index] Share Improve this answer Follow answered Jun 7, 2024 at 12:29 Michael Jungo
Pytorch indexing
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WebApr 14, 2024 · 将index设置为 index = torch.tensor ( [0, 4, 2]) 即可 官方例子如下: x = torch.zeros(5, 3) t = torch.tensor([[1, 2, 3], [4, 5, 6], [7, 8, 9]], dtype=torch.float) index = torch.tensor([0, 4, 2]) x.index_copy_(0, index, t) 1 2 3 4 输出 tensor([[ 1., 2., 3.], [ 0., 0., 0.], [ 7., 8., 9.], [ 0., 0., 0.], [ 4., 5., 6.]]) 1 2 3 4 5 hjxu2016 码龄7年 企业员工 324 原创 4969 周排名 WebApr 11, 2024 · PyTorch version: 2.0.0+cu118 Python version: 3.9 CUDA/cuDNN version: 118 How you installed PyTorch and PyG ( conda, pip, source): ZihanChen1995 added the bug label 10 hours ago Sign up for free to join this conversation on GitHub . Already have an account? Sign in to comment bug None yet 1 participant
WebA question about matrix indexing : r/pytorch. Eddie_Han. I have two matrices, X and Y, with sizes of 12225x30 and 12225x128, respectively. Matrix X represents the indices of the … WebMar 24, 2024 · PyTorch中的torch.gather函数,可以帮助我们在指定维度上按照索引从输入张量中获取对应的值,并输出一个新的张量。 这个函数的操作可能比较抽象,下面我就举一个简单的例子来说明其用法。 我们假设有一个二维张量input,其形状为 (4, 3),其中每个元素都是一个整数。 我们需要从input中按照行的索引获取对应的值,并将它们组成一个新的张 …
WebDec 14, 2024 · On a P100 GPU with PyTorch 1.0 stable, across a variety of problem shapes I get the following results: Forward gather speedup: Min: 0.7549055905220289 Max: 5.590410529614541 Mean: 0.9328673787035276 Median: 0.880012936610608 Backward gather speedup: Min: 1.6313537996980372 Max: 23.95120248579235 Mean: … Webpytorch batch-processing Share Improve this question Follow asked May 8, 2024 at 10:51 Sascha S. 43 1 4 Add a comment 2 Answers Sorted by: 7 To select only one element per …
WebPytorch - Indexing a range of multiple Indices? Ask Question Asked 2 years, 11 months ago Modified 1 year, 2 months ago Viewed 3k times 2 Lets say I have a tensor of size [100, …
Webpytorch 使用llama_index与mac m1 dfty9e19 于 14分钟前 发布在 Mac 关注 (0) 答案 (1) 浏览 (0) 问题1: 有没有办法将Mac与M1 CPU和 llama_index 一起使用? 我不能通过下面的Assert: AssertionError Traceback (most recent call last) in 6 from transformers import pipeline 7 ----> 8 class customLLM(LLM): 9 … blinds to go chatham ontarioWebApr 15, 2024 · 2. 定义模型:使用 PyTorch 的神经网络模块(nn)构建图像分类模型,例如使用 nn.Conv2d 定义卷积层,使用 nn.Linear 定义全连接层。 3. 训练模型:使用 PyTorch … blinds to go canton maWebApr 15, 2024 · 官方文档: torch.Tensor.scatter_ — PyTorch 2.0 documentation 参数定义: dim:沿着哪个维度进行索引 index:索引值 src:数据源,可以是张量,也可以是标量 简言之 scatter () 是通过 src 来修改另一个张量,修改的元素值和位置由 dim 和 index 决定 2. 示例和详细解释 在官方文档中,给出了3维tensor的具体操作说明,看起来很蒙,没关系继续 … fred haas toyota locationWebPytorch:"nll_loss_forward_reduce_cuda_kernel_2d_index“未实现为”“RuntimeError”“:Pytorch 得票数 5; MongoDB错误: ReferenceError:未定义数据 得票数 0; jsr223 -带有外部库的错误 得票数 0 fred haas toyota houston i 45WebFind the indices from the innermost dimension of sorted_sequence such that, if the corresponding values in values were inserted before the indices, when sorted, the order of the corresponding innermost dimension within sorted_sequence would be preserved. Return a new tensor with the same size as values. fred haas toyota in spring txblinds to go clickfitWebPytorch:"nll_loss_forward_reduce_cuda_kernel_2d_index“未实现为”“RuntimeError”“:Pytorch 得票数 5; MongoDB错误: ReferenceError:未定义数据 得票数 0; … fred haas toyota houston texas