  Following the success of the natural language processing, the transformer for
vision applications has attracted significant attention in recent years due to
its excellent performance. However, existing deep learning hardware
accelerators for vision cannot execute this structure efficiently due to
significant model architecture differences. As a result, this paper proposes
the hardware accelerator for vision transformers with row-wise scheduling,
which decomposes major operations in vision transformers as a single dot
product primitive for a unified and efficient execution. Furthermore, by
sharing weights in columns, we can reuse the data and reduce the usage of
memory. The implementation with TSMC 40nm CMOS technology only requires 262K
gate count and 149KB SRAM buffer for 403.2 GOPS throughput at 600MHz clock
frequency.
