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{-# LANGUAGE TypeApplications #-}
module Main where
import Control.DeepSeq
import Control.Exception (evaluate)
import Control.Monad (forM_)
import Criterion
import Criterion.Main
import qualified System.Clock as Clock
import System.Environment (getArgs)
import System.Mem (performGC)
import qualified Numeric.AD as AD
import qualified Numeric.ADDual as ADD
import Numeric.ADDual.Examples
main :: IO ()
main = do
args <- getArgs
case args of
["--neural-graph"] -> mainNeuralGraph
_ -> mainCriterion
mainCriterion :: IO ()
mainCriterion = defaultMain
[benchNeural 100
,benchNeural 180 -- rather stably 2 GCs
,benchNeural 500
,benchNeural 2000
]
where
benchNeural :: Int -> Benchmark
benchNeural n =
env (pure (makeNeuralInput n)) $ \input ->
bgroup ("neural-" ++ show n)
[bench "dual" $ nf (\inp -> ADD.gradient' fneural inp 1.0) input
,bench "ad" $ nf (\inp -> AD.grad fneural inp) input]
mainNeuralGraph :: IO ()
mainNeuralGraph = do
forM_ [10, 20 .. 300] $ \n -> do
let input = makeNeuralInput n
_ <- evaluate (force input)
performGC
t1 <- Clock.getTime Clock.Monotonic
_ <- evaluate $ force (ADD.gradient' fneural input 1.0)
t2 <- Clock.getTime Clock.Monotonic
performGC
t3 <- Clock.getTime Clock.Monotonic
_ <- evaluate $ force (AD.grad fneural input)
t4 <- Clock.getTime Clock.Monotonic
let diff a b = fromIntegral (Clock.toNanoSecs (Clock.diffTimeSpec a b)) / 1e9 :: Double
putStrLn $ show n ++ " " ++ show (diff t1 t2) ++ " " ++ show (diff t3 t4)
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