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wiki:numa_cores [2016/12/01 08:32] walkeradminwiki:numa_cores [2023/03/09 22:35] (current) – external edit 127.0.0.1
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 ====== NUMA Cores ====== ====== NUMA Cores ======
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-NUMA (non-uniform memory access) is a method of configuring a cluster of microprocessors in a multiprocessing system so that they can share memory locally, improving performance and the ability of the system to be expanded. NUMA is used in a symmetric multiprocessing ( SMP ) system. An SMP system is a "tightly-coupled," "share everything" system in which multiple processors working under a single operating system access each other's memory over a common bus or "interconnect" path. Ordinarily, a limitation of SMP is that as microprocessors are added, the shared bus or data path get overloaded and becomes a performance bottleneck. NUMA adds an intermediate level of memory shared among a few microprocessors so that all data accesses don't have to travel on the main bus.+NUMA (<color red>non-uniform memory access</color>) is a method of configuring a cluster of microprocessors in a multiprocessing system so that they can share memory locally, improving performance and the ability of the system to be expanded. NUMA is used in a symmetric multiprocessing ( SMP ) system. An SMP system is a "tightly-coupled," "share everything" system in which multiple processors working under a single operating system access each other's memory over a common bus or "interconnect" path. Ordinarily, a limitation of SMP is that as microprocessors are added, the shared bus or data path get overloaded and becomes a performance bottleneck. NUMA adds an intermediate level of memory shared among a few microprocessors so that all data accesses don't have to travel on the main bus.
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 In normal operation, the MFEL is configured such that NUMA is enabled in the BIOS and in the advanced parameters. This restricts a service to accessing a single NUMA core (so a service will not take cores from both CPUs, only from one). In normal operation, the MFEL is configured such that NUMA is enabled in the BIOS and in the advanced parameters. This restricts a service to accessing a single NUMA core (so a service will not take cores from both CPUs, only from one).
wiki/numa_cores.1480581135.txt.gz · Last modified: 2023/03/09 22:35 (external edit)