Top 5 C++ Tensor Projects

xtensor

8 3,205 7.9 C++

C++ tensors with broadcasting and lazy computing

Project mention: Does anyone know any good open source project to optimize? | /r/cpp | 2023-06-07

Fastor

5 702 4.3 C++

A lightweight high performance tensor algebra framework for modern C++
WorkOS

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cadabra2

2 215 8.1 C++

A field-theory motivated approach to computer algebra.
array

4 188 6.9 C++

C++ multidimensional arrays in the spirit of the STL

Project mention: Benchmarking 20 programming languages on N-queens and matrix multiplication | news.ycombinator.com | 2024-01-02

I should have mentioned somewhere, I disabled threading for OpenBLAS, so it is comparing one thread to one thread. Parallelism would be easy to add, but I tend to want the thread parallelism outside code like this anyways.
As for the inner loop not being well optimized... the disassembly looks like the same basic thing as OpenBLAS. There's disassembly in the comments of that file to show what code it generates, I'd love to know what you think is lacking! The only difference between the one I linked and this is prefetching and outer loop ordering: https://github.com/dsharlet/array/blob/master/examples/linea...

newlang

1 20 7.9 C++

A programming language with a simple no-keyword syntax for computing tensors and rational numbers with unlimited precision
InfluxDB

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NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).