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#LINPACK BENCHMARK MULTINODE SOFTWARE#
#LINPACK BENCHMARK MULTINODE SERIES#

: This field specifies that each CCD within the Processor will be declared as a NUMA Domain.

2UpDownPrefetcher: When set to Enabled, the Processor uses memory access to determine whether to fetch next or previous for all memory accesses for advanced performance tuning by controlling the L2 up/down prefetcher setting.

2StreamHwPrefetcher: When set to Enabled, the Processor provides advanced performance tuning by controlling the L2 stream HW prefetcher setting.

1StridePrefetcher: When set to Enabled, the Processor provides additional fetch to the data access for an individual instruction for performance tuning by controlling the L1 stride prefetcher setting.

Under Custom mode when C state is enabled, Monitor/Mwait should also be enabled. When set to Custom, you can change setting of each option. When set to a mode other than Custom, BIOS will set each option accordingly.

: This field sets the System Profile to Performance Per Watt (OS), Performance, or Custom mode.The following BIOS options were explored –

#LINPACK BENCHMARK MULTINODE SOFTWARE#

Table 1: Testbed hardware and software details Server details are mentioned in Table 1 below. Processors from both Milan and Rome generations are socket compatible, so the BIOS Options are similar across these Processor generations.

BIOS Options Available on AMD Milan and Tuning Here is the logical representation of Core arrangement with NUMA Nodes per socket = 4 and CCD as NUMA = Disabled.įigure1: Linear core enumeration on a dual-socket system, 64c per socket, NPS4 configuration on an 8 CCD Processor modelĪs with AMD Rome, AMD Milan Processors support the AVX256 instruction set allowing 16 DP FLOP/cycle. Therefore, Milan’s 64 core dual-socket Processors with 8 CCDs per Processor will expose 16 NUMA domains per system in this setting. Milan Processors can expose each CCD as a NUMA node node by setting the “元 cache as NUMA Domain” ( from the iDRAC GUI ) or (using racadm CLI) option to “Enabled”. Each CCD now features up to 8 cores with a unified 32MB 元 cache which could reduce the cache access latency within compute chiplets. Unlike Naples and Rome, Milan's arrangement of its CCDs has changed. Milan Processors have upgrades to the Cache (including new prefetchers at both L1 and L2 caches) and Memory Bandwidth which is expected to improve performance of applications requiring higher memory bandwidth. ArchitectureĪs with AMD Rome, AMD Milan’s 64 core Processor model has 1 I/O die and 8 compute dies (also called CCD or Core Complex Die) – OPN 32 core models may have 4 or 8 compute dies. It supports up to 64 cores at 280w TDP and 8 DDR4 memory channels at speeds up to 3200MT/s. Upcoming blogs will focus on the application performance and characterization of the software applications from various scientific domains such as Weather Science, Molecular Dynamics, and Computational Fluid Dynamics.ĪMD Milan with Zen3 cores is the successor of AMD's high-performance second generation server microprocessor (architecture codenamed " Rome"). This blog outlines the Milan Processor architecture and the recommended BIOS settings to deliver optimal HPC Synthetic benchmark performance.

#LINPACK BENCHMARK MULTINODE SERIES#

With the release of the AMD EPYC 7003 Series Processors (architecture codenamed "Milan"), Dell EMC PowerEdge servers have now been upgraded to support the new features.