ndarray-safetensors

Crates.iondarray-safetensors
lib.rsndarray-safetensors
version0.3.0
created_at2024-12-21 04:14:13.486745+00
updated_at2025-03-05 23:57:34.447557+00
descriptionSerialize / deserialize ndarrays with safetensors.
homepagehttps://github.com/linmx0130/ndarray_safetensors
repositoryhttps://github.com/linmx0130/ndarray_safetensors
max_upload_size
id1490741
size40,991
Mengxiao Lin (linmx0130)

documentation

README

ndarray-safetensors

Serialize / deserialize Rust ndarray with Safetensors.

Demo

See safetensors-testapp for more details. Here is an end-to-end demo to print all tensors from a safetensors file.

use ndarray_safetensors::parse_tensor_view_data;

let path_example = Path::new("data/rand.safetensors");
let file = File::open(path_example).unwrap();
let buffer = unsafe {MmapOptions::new().map(&file).unwrap()};
let tensors = safetensors::SafeTensors::deserialize(&buffer).unwrap();
for (name, tensor_view) in tensors.tensors() {
    println!("Tensor: {}", name);
    if tensor_view.dtype() == safetensors::Dtype::F32 {
        let arr= parse_tensor_view_data::<f32>(&tensor_view).unwrap();
        println!("{}", arr);
    }
    if tensor_view.dtype() == safetensors::Dtype::F64 {
        let arr= parse_tensor_view_data::<f64>(&tensor_view).unwrap();
        println!("{}", arr);
    }
}

Features

The following crate feature flags are available. They are configured in your Cargo.toml.

  • unsafe_copy: Allowing directly copying the bytes instead of parsing floats in serialization/deserialization for little-endian machines.
  • x86_sse: Using SSE instructions to optimize some conversions, it could be useful for fp16.

Copyright & License

Copyright (c) 2024-2025 Mengxiao Lin. Check LICENSE file.

Commit count: 35

cargo fmt