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Status Not under consideration
Workspace Spectrum Symphony
Components Version 7.1
Created by Guest
Created on Feb 26, 2015

Symphony 7.1 on Windows is not NUMA aware

Symphony 7.1 Advanced Edition has been installed on two HP Gen 9 blade server srunning Windows Server 2012 R2 Standard. The blades have two Intel Xeon E5-2697 processors each with 14 cores. Windows and the WMIC tools all report the correct number of processors (28) as expected. However in the PMC, Symphony only reports 14 cpus for each server.

The bios on one of the servers was updated to Enable Node Interleaving, which has the effect of creating a single NUMA processor group containing 28 cores. Now in the PMC Symphony reports 28 cpus for the server.

Because a spawned process inherits the processor group of its parent process and all Symphony processes (including services) are spawned from lim, with NUMA enabled only one of the server's processor groups can ever be used by Symphony. This immediately halves the core count of the cluster.

  • Guest
    Feb 27, 2015

    Creating a new RFE based on Community RFE #67086 in product Platform Symphony.