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It is useful to understand the stacked 元 cache technology, called 3D V-cache, present in Milan-X CPUs, and what effect this does and does not have on a range of HPC workloads. What is Milan-X and how does it affect performance?

2 x 900 GB NVMe SSD (3.5 GB/s (reads) and 1.5 GB/s (writes) per SSD, large block IO)Īdditional details of the HBv3-series of virtual machines are available at.

200 Gbps HDR InfiniBand (SRIOV), Mellanox ConnectX-6 NIC with Adaptive Routing.

350 GB/s DRAM bandwidth (STREAM TRIAD), up to 1.8x amplification (~630 GB/s effective bandwidth).

Up to 96 MB 元 cache per core (3x larger than standard Milan CPUs, and 6x larger than “Rome” CPUs).

Up to 120 AMD EPYC 7V73X CPU cores (EPYC with 3D V-cache, “Milan-X”).These VMs share much in common with the currently available HBv3 VMs with standard AMD EPYC 3 rd Gen processors (codenamed “Milan”) generally available in Azure, with the key exception being the use of a different CPU (i.e. HBv3 VMs with Milan-X processors are available in the following sizes: HBv3 VMs – VM Size Details & Technical Overview In addition, HBv3 VMs with Milan-X processors show significant improvements in workload scaling efficiency, peaking as high as 200% and staying sublinear across a broad range of workloads and models. Up to 50% higher performance for explicit finite element analysis workloads.Up to 60% higher performance for EDA RTL simulation workloads.Up to 80% higher performance for CFD workloads.

We can report that as compared to the current, generally available HBv3 VMs with standard EPYC 3 rd Gen “Milan” processors, these enhanced VMs provide: This blog provides in-depth technical information about these new VMs and what customers can expect when accessing through the Preview program, as well as when this capability becomes Generally Available in the future Article contributed by Amirreza Rastegari, Jon Shelley, Jithin Jose, Evan Burness, and Aman VermaĪ Preview program for Azure HBv3 VMs enhanced with AMD EPYC 3 rd Gen processors with 3D v-cache (codenamed “Milan-X”) is now available.