AMD CDNA2 “Aldebaran” MI200 HPC Accelerator with 256 CU (16,384 cores) Imagined

AMD CDNA2 “Aldebaran” MI200 HPC Accelerator with 256 CU (16,384 cores) Imagined

AMD Instinct MI200 will be an critical product or service for the company in the HPC and AI supercomputing market place. It debuts the CDNA2 compute architecture, and is dependent on a multi-chip module (MCM) codenamed “Aldebaran.” Pc enthusiast Locuza, who conjures extremely thorough architecture primarily based on public information and facts, imagined what “Aldebaran” could look like. The MCM contains two logic dies, and eight HBM2E stacks. Each and every of the two dies has a 4096-bit HBM2E interface, which talks to 64 GB of memory (128 GB per package deal). A silicon interposer delivers microscopic wiring among the 10 dies.

Each and every of the two logic dies, or chiplets, has sixteen shader engines that have 16 compute models (CU), just about every. The CDNA2 compute unit is able of complete-price FP64, packed FP32 math, and Matrix Engines V2 (fastened purpose components for matrix multiplication, accelerating DNN constructing, coaching, and AI inference). With 128 CUs for each chiplet, assuming the CDNA2 CU has sixty four stream processors, 1 comes at 8,192 SP. Two these kinds of dies insert up to a whopping 16,384, a lot more than three periods that of the “Navi 21” RDNA2 silicon. Each die more features its independent PCIe interface, and XGMI (AMD’s rival to CXL), an interconnect created for substantial-density HPC eventualities. A rudimentary VCN (Video CoreNext) component is also existing. It’s crucial to note here, that the CDNA2 CU, as nicely as the “Aldebaran” MCM alone, does not have a dual-use as a GPU, since it lacks considerably of the hardware required for graphics processing. The MI200 is anticipated to start later this 12 months.

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