1*bb86c7edSAndroid Build Coastguard Worker# The ruy matrix multiplication library 2*bb86c7edSAndroid Build Coastguard Worker 3*bb86c7edSAndroid Build Coastguard WorkerThis is not an officially supported Google product. 4*bb86c7edSAndroid Build Coastguard Worker 5*bb86c7edSAndroid Build Coastguard Workerruy is a matrix multiplication library. Its focus is to cover the matrix 6*bb86c7edSAndroid Build Coastguard Workermultiplication needs of neural network inference engines. Its initial user has 7*bb86c7edSAndroid Build Coastguard Workerbeen TensorFlow Lite, where it is used by default on the ARM CPU architecture. 8*bb86c7edSAndroid Build Coastguard Worker 9*bb86c7edSAndroid Build Coastguard Workerruy supports both floating-point and 8bit-integer-quantized matrices. 10*bb86c7edSAndroid Build Coastguard Worker 11*bb86c7edSAndroid Build Coastguard Worker## Efficiency 12*bb86c7edSAndroid Build Coastguard Worker 13*bb86c7edSAndroid Build Coastguard Workerruy is designed to achieve high performance not just on very large sizes, as 14*bb86c7edSAndroid Build Coastguard Workeris the focus of many established libraries, but on whatever are the actual sizes 15*bb86c7edSAndroid Build Coastguard Workerand shapes of matrices most critical in current TensorFlow Lite applications. 16*bb86c7edSAndroid Build Coastguard WorkerThis often means quite small sizes, e.g. 100x100 or even 50x50, and all sorts of 17*bb86c7edSAndroid Build Coastguard Workerrectangular shapes. It's not as fast as completely specialized code for each 18*bb86c7edSAndroid Build Coastguard Workershape, but it aims to offer a good compromise of speed across all shapes and a 19*bb86c7edSAndroid Build Coastguard Workersmall binary size. 20*bb86c7edSAndroid Build Coastguard Worker 21*bb86c7edSAndroid Build Coastguard Worker## Documentation 22*bb86c7edSAndroid Build Coastguard Worker 23*bb86c7edSAndroid Build Coastguard WorkerSome documentation will eventually be available in the doc/ directory, see 24*bb86c7edSAndroid Build Coastguard Worker[doc/README.md](doc/README.md). 25*bb86c7edSAndroid Build Coastguard Worker 26