The Center for Advanced Computing Development (C-DAC) recently announced that it is working on ARM-based CPUs, including the flagship AUM chip. Now, the company has revealed the first details of its AUM CPU aimed at the HPC segment.
India is developing the C-DAC AUM, a high-performance CPU with 96 ARM cores. It boasts of 96 GB HBM3 for ample memory capacity and fast data access. The CPU also has 128 PCIe Gen 5 lanes, enabling faster connections for peripherals and expansion cards. Despite its impressive performance, the C-DAC AUM maintains an energy-efficient design with a thermal design power (TDP) of 320W.
From IoT, AR/VR to HPC and data center usage. Based on dual-core and quad-core designs, the company’s Vega series of CPUs target entry-level customers who require low-power, low-cost chips and cover at least 10 % of India’s chip needs. The company will also produce an octa-core chip in the next three years as a follow-up to the Dhruv and Dhanush Plus chips.
But that’s not all, the company is working on powerful HPC chips aimed at large-scale workloads as part of the National Computing Mission (NSM) program. This chip is called C-DAC AUM.
AUM’s C-DAC CPU is based on the ARM Neoverse V1 core architecture coded by Zeus. The AUM chip has a total of 96 cores, but is divided into two chips, each with 48 V1 cores. Each chiplet has its own memory, I/O, C2C/D2D interconnection, cache, security, and MSCP subsystem. Two A48Z-based chiplets are connected via D2D chiplet interconnect in the same interposer. Each chip also has 96 MB of L2 cache and 96 MB of system cache.
For memory, the C-DAC AUM CPU will be installed from 64 GB HBM3-5600 with 96 GB HBM3 memory and 8-channel DDR5-5200 on-die memory (expandable to 16 channels, total bandwidth up to 332.8 GB/s).
It is a three-memory subsystem with die,inter-poser, and off-chip memory solution. The CPU will carry 64/128 PCIe Gen 5 lanes with CXL support and will run on platforms that may include these two chips. The CPU will be manufactured on TSMC’s 5nm process node. The clock speed is said to be between 3.0 and 3.5 GHz. A single CPU node containing only C-DAC AUM will achieve 10 TFLOPs of performance per node, 4.6+ TFLOPs per socket, and the dual-socket server design can support up to 4 standard GPU accelerators.
C-DAC will also develop HPC System software and development tools to take advantage of its hardware. The company hopes to reach 64 PetaFlops of computing power in the country by the end of 2024. The AUM chip is expected to hit the shelves by 2023-2024.
Damn C-DAC is cooking AUM HPC processor specs:
96 Neoverse V1 cores
L3 cache: 96MB
8 channel DDR5 5200 MT/s
64GB HBM3
128L PCIe5 lanes(out of which, 64L is used for CCIX)
280-320W
TSMC N5 node
Source : wccftech
