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@nvmon
: Unreasonable metric values
#38
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bug
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Running essentially the same thing under # perfctr_gpu.jl
using LIKWID
using CUDA
const N = 10_000
const a = 3.141f0 # Float32
const x = CUDA.rand(Float32, N)
const y = CUDA.rand(Float32, N)
const z = CUDA.zeros(Float32, N)
saxpy!(z,a,x,y) = z .= a .* x .+ y
saxpy!(z,a,x,y) # warmup
GPUMarker.init()
GPUMarker.startregion("saxpy")
saxpy!(z,a,x,y)
GPUMarker.stopregion("saxpy")
GPUMarker.close() gives
That seems much more reasonable. (Why only 5000 FMAs though?) |
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gives
The metric values don't make sense!?
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