32 lines
1.5 KiB
Julia
32 lines
1.5 KiB
Julia
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function test_cpu_interpreter(nrows; parallel = false)
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exprs = [
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# CPU interpreter requires an anonymous function and array ref s
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:(p[1] * x[1] + p[2]), # 5 op
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:((((x[1] + x[2]) + x[3]) + x[4]) + x[5]), # 9 op
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:(log(abs(x[1]))), # 3 op
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:(powabs(p[2] - powabs(p[1] + x[1], 1/x[1]),p[3])) # 13 op
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] # 30 op
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exprs = map(e -> Expr(:->, :(x,p), e), exprs)
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X = randn(Float32, nrows, 10)
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p = [randn(Float32, 10) for _ in 1:length(exprs)] # generate 10 random parameter values for each expr
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# warmup
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interpret_cpu(exprs, X, p)
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if parallel
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t_sec = @elapsed Threads.@threads :static for i in 1:100 interpret_cpu(exprs, X, p) end
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println("~ $(round(30 * 100 * nrows / 1e9 / t_sec, digits=2)) GFLOPS (single-core) ($(round(peakflops(1000, eltype=Float32, ntrials=1, parallel=false) / 1e9, digits=2)) GFLOPS (peak, single-core))")
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else
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t_sec = @elapsed for i in 1:100 interpret_cpu(exprs, X, p) end
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println("~ $(round(30 * 100 * nrows / 1e9 / t_sec, digits=2)) GFLOPS ($(Threads.nthreads()) threads) ($(round(peakflops(1000, eltype=Float32, ntrials=1, parallel=false) / 1e9, digits=2)) GFLOPS (peak, single-core))")
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end
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true
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end
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LinearAlgebra.BLAS.set_num_threads(1) # only use a single thread for peakflops
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@test test_cpu_interpreter(1000)
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@test test_cpu_interpreter(1000, parallel=true) # start julia -t 6 for six threads
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@test test_cpu_interpreter(10000)
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@test test_cpu_interpreter(10000, parallel=true)
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