Julien is a Senior Manager in the GPU Architecture group at NVIDIA. He is one of the co-authors?of many of the low level implementations for Deep Learning in cuDNN and TensorRT. Among other things, Julien wrote the first version of FFT-based 2D convolutions for cuDNN, he wrote a large fraction of the Implicit GEMM convolutions for Maxwell, Pascal and Volta GPUs, and he is the author of several?Winograd implementations. Julien holds?a Ph.D. in Computational Geometry from INRIA in France.