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Shalf k yelick stencil computaon opmizaon and

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Unformatted text preview: hniques: –  Mul(core –  Simultaneous mul(threading (SMT) –  Vector instruc(ons –  Predica(on •  So basically a GPU core is a lot like the processor architectures we have studied! •  But the SIMT programming model makes it look different SIMT vs SIMD – GPUs without the hype •  SIMT: •  SIMD: •  one thread per lane •  SMT: a small number of threads run on the •  Adjacent threads same core to hide execute in lockstep memory latency (“warp”/”wavefront”) •  SMT: mul(ple “warps” •  Each thread may include...
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