: Units located near the memory chips that handle intensive computations, such as transformer block operations. 3. Key Advantages of this System
: Each CXL device in this architecture integrates 16 controllers, each managing two GDDR6-PIM channels.
: These micro-ops are converted into DRAM commands, executing the logic directly where the data resides. pim073.jpg
: CXL-based memory expansion offers approximately 8x lower latency compared to network-based RDMA (Remote Direct Memory Access).
: Utilizing CXL 3.0 allows the system to support up to 4,096 nodes, which is significantly more scalable than proprietary interconnects like NVIDIA's NVLink. : Units located near the memory chips that
Below is a detailed guide to the technology and architecture associated with this topic. 1. What is PIM (Processing-In-Memory)?
: A 2MB buffer on each device receives "CENT instructions" from a host CPU. These are then decoded into micro-ops for the memory units. : These micro-ops are converted into DRAM commands,
: The CPU sends standard read/write transactions and specialized CENT arithmetic instructions to the device.