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- Single_instruction,_multiple_threads abstract "Single instruction, multiple thread (SIMT) is a parallel execution model, used in some GPGPU platforms, where multithreading is simulated by SIMD processors. The processors, say a number p of them, seem to execute many more than p tasks. This is achieved by each processor having multiple "threads" (or "work-items"), which execute in lock-step, and are analogous to SIMD "lanes".SIMT was introduced by Nvidia: [The G80 Nvidia GPU architecture] introduced the single-instruction multiple-thread (SIMT) execution model where multiple independent threads execute concurrently using a single instruction.SIMT is intended to limit instruction fetching overhead, and is used in modern GPUs (including, but not limited to those of Nvidia and AMD) in combination with 'latency hiding' to enable high-performance execution despite considerable latency in memory-access operations. This is where the processor is oversubscribed with computation tasks, and is able to quickly switch between tasks when it would otherwise have to wait on memory. This strategy is comparable to multithreading in CPUs (not to be confused with multi-core).A downside of SIMT execution is the fact that thread-specific control-flow is performed using "masking", leading to poor utilisation where a processor's threads follow different control-flow paths. For instance, to handle an if-else block where various threads of a processor execute different paths, all threads must actually process both paths (as all threads of a processor always execute in lock-step), but masking is used to disable and enable the various threads as appropriate. Masking is avoided when control flow is coherent for the threads of a processor, i.e. they all follow the same path of execution. The masking strategy is what distinguishes SIMT from ordinary SIMD, and has the benefit of inexpensive synchronization between the threads of a processor.".
- Single_instruction,_multiple_threads wikiPageID "43320329".
- Single_instruction,_multiple_threads wikiPageLength "4030".
- Single_instruction,_multiple_threads wikiPageOutDegree "14".
- Single_instruction,_multiple_threads wikiPageRevisionID "651554950".
- Single_instruction,_multiple_threads wikiPageWikiLink AMD.
- Single_instruction,_multiple_threads wikiPageWikiLink Advanced_Micro_Devices.
- Single_instruction,_multiple_threads wikiPageWikiLink Category:Classes_of_computers.
- Single_instruction,_multiple_threads wikiPageWikiLink Category:Computer_architecture.
- Single_instruction,_multiple_threads wikiPageWikiLink Category:Parallel_computing.
- Single_instruction,_multiple_threads wikiPageWikiLink GPGPU.
- Single_instruction,_multiple_threads wikiPageWikiLink General-purpose_computing_on_graphics_processing_units.
- Single_instruction,_multiple_threads wikiPageWikiLink Instruction_cycle.
- Single_instruction,_multiple_threads wikiPageWikiLink Instruction_fetching.
- Single_instruction,_multiple_threads wikiPageWikiLink Multi-core_processor.
- Single_instruction,_multiple_threads wikiPageWikiLink Multithreading_(computer_architecture).
- Single_instruction,_multiple_threads wikiPageWikiLink Nvidia.
- Single_instruction,_multiple_threads wikiPageWikiLink Parallel_computing.
- Single_instruction,_multiple_threads wikiPageWikiLink SIMD.
- Single_instruction,_multiple_threads wikiPageWikiLink Thread_(computing).
- Single_instruction,_multiple_threads wikiPageWikiLinkText "Single instruction, multiple threads".
- Single_instruction,_multiple_threads hasPhotoCollection Single_instruction,_multiple_threads.
- Single_instruction,_multiple_threads wikiPageUsesTemplate Template:Comp-sci-stub.
- Single_instruction,_multiple_threads wikiPageUsesTemplate Template:Mvar.
- Single_instruction,_multiple_threads wikiPageUsesTemplate Template:Quote.
- Single_instruction,_multiple_threads wikiPageUsesTemplate Template:Reflist.
- Single_instruction,_multiple_threads subject Category:Classes_of_computers.
- Single_instruction,_multiple_threads subject Category:Computer_architecture.
- Single_instruction,_multiple_threads subject Category:Parallel_computing.
- Single_instruction,_multiple_threads hypernym Model.
- Single_instruction,_multiple_threads type Person.
- Single_instruction,_multiple_threads comment "Single instruction, multiple thread (SIMT) is a parallel execution model, used in some GPGPU platforms, where multithreading is simulated by SIMD processors. The processors, say a number p of them, seem to execute many more than p tasks.".
- Single_instruction,_multiple_threads label "Single instruction, multiple threads".
- Single_instruction,_multiple_threads sameAs m.0119x85r.
- Single_instruction,_multiple_threads sameAs Q18359045.
- Single_instruction,_multiple_threads sameAs Q18359045.
- Single_instruction,_multiple_threads wasDerivedFrom Single_instruction,_multiple_threads?oldid=651554950.
- Single_instruction,_multiple_threads isPrimaryTopicOf Single_instruction,_multiple_threads.