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Do More With Less Using New Azure HX And HBv4 Virtual Machines For HPC

  • November 13, 2022
  • liwaiwai.com

The next generation of purpose-built Azure HPC virtual machines

Today, we are excited to announce two new virtual machines (VMs) that deliver more performance, value-adding innovation, and cost-effectiveness to every Azure HPC customer. The all-new HX-series and HBv4-series VMs are coming soon to the East US region, and thereafter to the South Central US, West US3, and West Europe regions. These new VMs are optimized for a variety of HPC workloads such as computational fluid dynamics (CFD), finite element analysis, frontend and backend electronic design automation (EDA), rendering, molecular dynamics, computational geoscience, weather simulation, AI inference, and financial risk analysis.

Innovative technologies to help HPC customers where it matters most

HX and HBv4 VMs are packed with new and innovative technologies that maximize performance and minimize total HPC spend, including:


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  • 4th Gen AMD EPYC™ processors (Preview, Q4 2022).
  • Upcoming AMD EPYC processors, codenamed “Genoa-X,” (with general availability in 1H 2023).
  • 800 GB/s of DDR5 memory bandwidth (STREAM TRIAD).
  • 400 Gb/s NVIDIA Quantum-2 CX7 InfiniBand, the first on the public cloud.
  • 80 Gb/s Azure Accelerated Networking.
  • PCIe Gen4 NVMe SSDs delivering 12 GB/s (read) and 7 GB/s (write) of storage bandwidth.

Below are preliminary benchmarks from the preview of HBv4 and HX series VMs using 4th Gen AMD EPYC processors across several common HPC applications and domains. For comparison, performance information is also included from Azure’s most recent H-series (HBv3-series with Milan-X processors), as well as a 4-year-old HPC-optimized server commonly found in many on-premises datacenters (represented here by Azure HC-series with Skylake processors).

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Graph showing performance across benchmarks, relative to a 4-year-old server, HBv3 VMs, and HBv4/HX VMs.

Figure 1: Performance comparison of HBv4/HX-series in Preview to HBv3-series and four-year-old server technology in an HPC-optimized configuration across diverse workloads and scientific domains.

Learn more about the performance of HBv4 and HX-series VMs with 4th Gen EPYC CPUs.

HBv4-series brings performance leaps across a diverse set of HPC workloads

Azure HBv3 VMs with 3rd Gen AMD EPYC™ processors with AMD 3D V-cache™ Technology already deliver impressive levels of HPC performance, scaling MPI workloads up to 27x higher than other clouds, surpassing many of the leading supercomputers in the world, and offering the disruptive value proposition of faster time to solution with lower total cost. Unsurprisingly, the response from customers and partners has been phenomenal. With the introduction of HBv4 series VMs, Azure is raising the bar yet again—this time across an even greater diversity of memory performance-bound, compute-bound, and massively parallel workloads.

VM Size

Physical CPU Cores

RAM (GB)

Memory Bandwidth (STREAM TRIAD) (GB/s)

L3 Cache/VM (MB)

FP64 Compute (TFLOPS)

InfiniBand RDMA Network (Gbps)

Standard_HB176rs_v4

176

688

800

768 MB

6

400

Standard_HB176-144rs_v4

144

688

800

768 MB

6

400

Standard_HB176-96rs_v4

96

688

800

768 MB

6

400

Standard_HB176-48rs_v4

48

688

800

768 MB

6

400

Standard_HB176-24rs_v4

24

688

800

768 MB

6

400

Notes: 1) “r” denotes support for remote direct memory access (RDMA) and “s” denotes support for Premium SSD disks. 2) At General Availability, Azure HBv4 VMs will be upgraded to Genao-X processors featuring 3D V-cache. Updated technical specifications for HBv4 will be posted at that time.

HX-series powers next generation silicon design

In Azure, we strive to deliver the best platform for silicon design, both now and far into the future. Azure HBv3 VMs, featuring 3rd Gen AMD EPYC processors with AMD 3D V-cache Technology, are a significant step toward this objective, offering the highest performance and total cost effectiveness in the public cloud for small and medium memory EDA workloads. With the introduction of HX-series VMs, Azure is enhancing its differentiation with a VM purpose-built for even larger models becoming commonplace among chip designers targeting 3, 4, and 5 nanometer processes.

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HX VMs will feature 3x more RAM than any prior H-series VM, up to nearly 60 GB of RAM per core, and constrained cores VM sizes to help silicon design customers maximize ROI of their per-core commercial licensing investments.

VM Size

Physical CPU Cores

RAM (GB)

Memory/Core(GB)

L3 Cache/VM (MB)

Local SSD NVMe (TB)

InfiniBand RDMA Network (Gbps)

Standard_HX176rs

176

1,408

8

768

3.6 TB

400

Standard_HX176-144rs

144

1,408

10

768

3.6 TB

400

Standard_HX176-96rs

96

1,408

15

768

3.6 TB

400

Standard_HX176-48rs

48

1,408

29

768

3.6 TB

400

Standard_HX176-24rs

24

1,408

59

768

3.6 TB

400

Notes: 1) “r” denotes support for remote direct memory access (RDMA) and “s” denotes support for Premium SSD disks. 2) At General Availability, Azure HBv4 VMs will be upgraded to Genoa-X processors featuring 3D V-cache. Updated technical specifications for HBv4 will be posted at that time.

400 Gigabit InfiniBand for supercomputing customers

HBv4 and HX VMs are Azure’s first to leverage 400 Gigabit NVIDIA Quantum-2 InfiniBand. This newest generation of InfiniBand brings greater support for the offload of MPI collectives, enhanced congestion control, and enhanced adaptive routing capabilities. Using the new HBv4 or HX-series VMs and only a standard Azure Virtual Machine Scale Set (VMSS), customers can scale CPU-based MPI workloads beyond 50,000 cores per job.

Continuous improvement for Azure HPC customers

Microsoft and AMD share a vision for a new era of high-performance computing in the cloud: one defined by constant improvements to the critical research and business workloads that matter most to our customers. Azure continues to collaborate with AMD to make this vision a reality by raising the bar on the performance, scalability, and value we deliver with every release of Azure H-series VMs.

Read More  Using Reinforcement Learning To Personalize AI-accelerated MRI Scans

Graph showing consistent performance increases across generations of virtual machines: HC series (Skylake), HBv2 series (Rome), HBv3 series (Milan X), HX/HBv4 series (Genoa).

Figure 2: Azure HPC Performance 2019 through 2022.

Learn more about the performance of HBv4 and HX-series VMs with 4th Gen EPYC CPUs.

 

By Joe Greenseid Principal Product Manager, Azure HPC
Source Microsoft Azure


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Related Topics
  • Azure HPC
  • HBv4
  • HX
  • Microsoft Azure
  • Virtual Machines
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