Below is a detailed guide to the technology and architecture associated with this topic. 1. What is PIM (Processing-In-Memory)?
: Each CXL device in this architecture integrates 16 controllers, each managing two GDDR6-PIM channels. pim073.jpg
: The CPU sends standard read/write transactions and specialized CENT arithmetic instructions to the device. Below is a detailed guide to the technology
: A 2MB buffer on each device receives "CENT instructions" from a host CPU. These are then decoded into micro-ops for the memory units. pim073.jpg
: By mapping entire transformer blocks to memory channels, the system can facilitate "Pipeline Parallel" processing, allowing LLM execution without relying on high-end GPUs. 4. Technical Workflow