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PyTorch eager

PyTorch · python · MIT

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No package. Vendor the mirrored source: 44 lines, MIT.

90_cumprod.py
curl "https://kernelindex.com/api/v1/implementations/kernelbench-l1-90-cumprod-torch?include=source"
interfacepython · torch_eager
symbolModel.forward
Compatibility
measured onNVIDIA H100
declared hardwaredeclared only
architectures—
dtypes

Benchmark evidence

2 measurements across 1 GPU, fastest first.

Operation / workload
Hardware
Latency
Rank
Observed
Cumprodfp32 · [32768, 32768]
NVIDIA H100
4.69ms±0.02
#2 of 2
2026-03-05
Cumprodfp32 · [32768, 32768]
NVIDIA H100
7.33ms±0.00
#2 of 2
2026-03-05

Reported · How evidence levels are derived →

Source and license

sourceavailable
revision digestsha256:7284a599600fa5b59f3450c6ae2ea1e9d1ff44b5a37b9ec1b6fa5714705a16fa
license declaredMIT
license concludedMIT
imported2026-08-26

Kernel source

90_cumprod.py44 lines
import torch
import torch.nn as nn

class Model(nn.Module):
    """
    A model that performs a cumulative product operation along a specified dimension.

    Parameters:
        dim (int): The dimension along which to perform the cumulative product operation.
    """

    def __init__(self, dim):
        """
        Initialize the CumulativeProductModel.

        Args:
            dim (int): The dimension along which to perform the cumulative product.
        """
        super(Model, self).__init__()
        self.dim = dim

    def forward(self, x):
        """
        Forward pass, computing the cumulative product along the specified dimension.

        Args:
            x (torch.Tensor): Input tensor of shape (batch_size, *input_shape).

        Returns:
            torch.Tensor: Tensor of the same shape as `x` after applying cumulative product along `dim`.
        """
        return torch.cumprod(x, dim=self.dim)

# Define input dimensions and parameters
batch_size = 32768
input_shape = (32768,)
dim = 1

def get_inputs():
    return [torch.rand(batch_size, *input_shape)]

def get_init_inputs():
    return [dim]
scrolls · 44 lines total

Source code from KernelBench, © 2023 Anne Ouyang, Simon Guo, Azalia Mirhoseini (Scaling Intelligence Lab, Stanford University), MIT License · MIT

Best evidence level for this revision: reported

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