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- gramática - O termo num numa está correto? - Portuguese Language . . .
A gramaticalidade de num e numa pode ser confirmada em qualquer dicionário Por exemplo no Aulete (com abreviaturas desabreviadas): 1 Contração da preposição em com o artigo indefinido um: Vive num sítio no interior 2 Contração da preposição em com o numeral um: Num dos dedos havia a marca do anel
- What is -lnuma and what program uses it for compilation?
OpenMPI, and I think mpich2, uses libnuma (`a simple programming interface to the NUMA (Non Uniform Memory Access) policy supported by the Linux kernel') for memory affinity -- to ensure that the memory for a particular MPI task stays close to the core that the task is running on, as vs being kept in cache on another socket entirely
- Which architecture to call Non-uniform memory access (NUMA)?
Technically, NUMA should probably only be used to describe non-uniform access latency or bandwidth to main memory (If the NUMA factor [latency far latency near or bandwidth far bandwidth near] is small [e g , comparable to dynamic variability due to DRAM row misses, buffering, etc ], then the system might still be considered UMA )
- How to use all NUMA nodes with openMP on Windows 10
By default, it places each NUMA nodes in its own group The fix is either disabling HTT if you have less than 64 physical cores, or disabling the NUMA grouping in the bios In the latter case, the first 64 logical cores will be grouped and appear as a single NUMA node in Windows and the remainder is placed in the second node
- caching - Whats the difference between Sub-NUMA Clustering and . . .
In the technical overview published by Intel, "Sub-NUMA Clustering" and "Hemisphere and Quadrant Modes" are described separately But the main difference between them is not clear In this answer, it says that "Inside quadrant or Hemisphere mode, the same LLC mapping is done as SNC, but it is exposed as one numa domain and one physical memory map "
- libvirt: use of hugepages on NUMA system - Stack Overflow
Given your configuration, these huge pages can potentially be allocated from any NUMA node With more advanced libvirt configuration it is possible to request allocation of a specific size of huge page, and pick them from specific NUMA nodes The latter is only really needed if you are also locking CPUs to a specific host NUMA node
- Does NUMA impact memory bandwidth, or just latency?
For bandwidth-limited, multi-threaded code, the behavior in a NUMA system will primarily depend how "local" each thread's data accesses are, and secondarily on details of the remote accesses In a typical 2-socket server system, the local memory bandwidth available to two NUMA nodes is twice that available to a single node
- linux - How do I know if my server has NUMA? - Stack Overflow
For me, dmesg also lacks mention of "NUMA", but I have no access to var log dmesg which need root privilege I run find proc|grep -i numa and saw some numa_maps files I guess this is also a symbol that NUMA is enabled –
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