Papers › Instruction Set Architecture (ISA) for Processing-in-Memory DNN Accelerators

Instruction Set Architecture (ISA) for Processing-in-Memory DNN Accelerators

12 Aug 2023arXiv:2308.06449links table onlyarchive 2025-07-28

Xiaoming Chen

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In this article, we introduce an instruction set architecture (ISA) for processing-in-memory (PIM) based deep neural network (DNN) accelerators. The proposed ISA is for DNN inference on PIM-based architectures. It is assumed that the weights have been trained and programmed into PIM-based DNN accelerators before inference, and they are fixed during inference. We do not restrict the devices of PIM-based DNN accelerators. Popular devices used to build PIM-based DNN accelerators include resistive random-access memory (RRAM), flash, ferroelectric field-effect transistor (FeFET), static random-access memory (SRAM), etc. The target DNNs include convolutional neural networks (CNNs) and multi-layer perceptrons (MLPs). The proposed ISA is transparent to both applications and hardware implementations. It enables to develop unified toolchains for PIM-based DNN accelerators and software stacks. For practical hardware that uses a different ISA, the generated instructions by unified toolchains can easily converted to the target ISA. The proposed ISA has been used in the open-source DNN compiler PIMCOMP-NN (https://github.com/sunxt99/PIMCOMP-NN) and the associated open-source simulator PIMSIM-NN (https://github.com/wangxy-2000/pimsim-nn).

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