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http://www.ncsa.illinois.edu/Conferences/IWOMP11/program/presentations/schmidl.pdf
International Workshop on OpenMP / June 13 -15, 2011 RZ: Dirk Schmidl Folie 2 Topology of modern Hardware Distance Matrix Usage of Distance Information Example – Array Reduction Agenda
https://core.ac.uk/display/36490127
Download PDF: Sorry, we are unable to provide the full text but you may find it at the following location(s): http://publications.rwth-aache... (external link) http ...Cited by: 6
https://en.wikipedia.org/wiki/Non-uniform_memory_access
Non-uniform memory access (NUMA) is a computer memory design used in multiprocessing, where the memory access time depends on the memory location relative to the processor.Under NUMA, a processor can access its own local memory faster than non-local memory (memory local to another processor or memory shared between processors). The benefits of NUMA are limited to particular …
https://software.intel.com/en-us/forums/intel-moderncode-for-parallel-architectures/topic/291902
Hi! I'm working on a memory allocator that should be optimized for use on NUMA architectures. It tries to take memory from the node where the current thread resides, and if it can't find there, it "steals" from other nodes. Here comes the problem: I want to take memory from the nearest node (lowest hop value) to the farthest (so the access is as low as possible), but I couldn't find an API (at ...
https://access.redhat.com/solutions/48756
No NUMA configuration found Faking a node at 0000000000000000-0000001027fff000 Bootmem setup node 0 0000000000000000-0000001027fff000 NODE_DATA [000000000000c000 - 000000000003ffff] bootmap [0000000000100000 - 0000000000304fff] pages 205 Even with NUMA enabled, dmesg does not show any information of NUMA initialization. Environment
https://cterboven.wordpress.com/publications/
Publications; Talks and Misc. ... Towards a Performance Engineering Workflow for OpenMP 4.0. In: Proceedings of the International Conference on Parallel Computing (ParCo 2013), Garching, Germany, September 2013. ... Towards NUMA Support with Distance Information. In: 7th International Workshop on OpenMP (IWOMP 2011), Chicago, IL, USA, June 2011 ...
https://octo.vmware.com/vnuma-what-it-is-and-why-it-matters/
Sep 19, 2011 · In vSphere 5, we introduced vNUMA which allows interested guest operating systems to see that they are running on a NUMA (Non Uniform Memory Architecture) topology. For those not familar, here is a one-diagram NUMA explanation. As you can see, in the UMA case, the cost of accessing a particular memory address is the same […]
http://www.ncsa.illinois.edu/Conferences/IWOMP11/program/program.html
James Beyer and Eric Stotzer Co-chairs, OpenMP Language committee accelerator sub-committee The two dominate programming models for GPUs, the most common accelerator, are Compute Unified Device Architecture (CUDA) and Open Computing Language (OpenCL), both of these programming models give the programmer the power to extract performance from the accelerator.
https://dl.acm.org/author_page.cfm?id=81350605552
Towards NUMA support with distance information. Dirk Schmidl, Christian Terboven, Dieter an Mey. ... (NUMA). However, programming models such as OpenMP do not provide explicit support for that. To overcome this limitation, we propose a platform-independent approach to describe the system topology and to place threads on the hardware. A distance ...
https://linux.die.net/man/3/numa_distance
The libnuma library offers a simple programming interface to the NUMA (Non Uniform Memory Access) policy supported by the Linux kernel. On a NUMA architecture some memory areas have different latency or bandwidth than others. ... numa_distance() reports the distance in the machine topology between two nodes. The factors are a multiple of 10. It ...
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