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submission 918521

Purshotam Kumar · python · License unknown

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Vendorable · source mirrored · license unknownView source →

No package. Vendor the mirrored source: 19 lines, June 9 Researcher Reciprocity License v1.0.

cholesky.py
curl "https://kernelindex.com/api/v1/implementations/kernelbot-cholesky-918521?include=source"
interfacepython
Compatibility
measured onNVIDIA B200
declared hardwareNVIDIA B200
architecturessm_100
dtypesfp32

Benchmark evidence

1 measurement across 1 GPU, fastest first.

Operation / workload
Hardware
Latency
Rank
Observed
NVIDIA B200
2.55ms
#324 of 337
2026-07-27

Reported · How evidence levels are derived →

Source and license

sourceavailable
revision digestsha256:27a2972ded106d27add4b2fdfc589a339045701c9a2ff1d70e75cd28474360a4
license declaredunknown
license concludedunknown
authorsPurshotam Kumar
imported2026-08-26

Kernel source

cholesky.py19 lines
import torch
from task import input_t, output_t

def custom_kernel(data: input_t) -> output_t:
    batch, n, _ = data.shape

    A = data.contiguous()
    
    if n >= 8192 and batch == 1 and A.is_cuda:
        torch.cuda.empty_cache()
    
    L = torch.linalg.cholesky(A, upper=False)
    diag = L.diagonal(dim1=-2, dim2=-1)

    if torch.any(diag <= 0):
        L = L.clone()
        L.diagonal(dim1=-2, dim2=-1).copy_(torch.clamp(diag, min=1e-8))
    
    return L

Source code from GPU Mode and the KernelBot dataset · June 9 Researcher Reciprocity License v1.0

Best evidence level for this revision: reported

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