HC-series virtual machine sizes

Applies to: ✔️ Linux VMs ✔️ Windows VMs ✔️ Flexible scale sets ✔️ Uniform scale sets

Several performance tests have been run on HC-series sizes. The following are some of the results of this performance testing.

Workload HB
STREAM Triad 190 GB/s (Intel MLC AVX-512)
High-Performance Linpack (HPL) 3520 GigaFLOPS (Rpeak), 2970 GigaFLOPS (Rmax)
RDMA latency & bandwidth 1.05 microseconds, 96.8 Gb/s
FIO on local NVMe SSD 1.3 GB/s reads, 900 MB/s writes
IOR on 4 Azure Premium SSD (P30 Managed Disks, RAID0)** 780 MB/s reads, 780 MB/writes

MPI latency

MPI latency test from the OSU microbenchmark suite is run. Sample scripts are on GitHub

./bin/mpirun_rsh -np 2 -hostfile ~/hostfile MV2_CPU_MAPPING=[INSERT CORE #] ./osu_latency 

MPI latency on Azure HC.

MPI bandwidth

MPI bandwidth test from the OSU microbenchmark suite is run. Sample scripts are on GitHub

./mvapich2-2.3.install/bin/mpirun_rsh -np 2 -hostfile ~/hostfile MV2_CPU_MAPPING=[INSERT CORE #] ./mvapich2-2.3/osu_benchmarks/mpi/pt2pt/osu_bw

MPI bandwidth on Azure HC.

Mellanox Perftest

The Mellanox Perftest package has many InfiniBand tests such as latency (ib_send_lat) and bandwidth (ib_send_bw). An example command is below.

numactl --physcpubind=[INSERT CORE #]  ib_send_lat -a

Next steps