# Custom Query (35 matches)

## Results (31 - 33 of 35)

Ticket | Resolution | Summary | Owner | Reporter |
---|---|---|---|---|

#32 | fixed | Add support for unbalanced workloads | ||

Description |
If we want to compute something like the mandelbrot set, each pixel can take a different time to compute. Want a work queue and some sort of hint system to tell Repa how to partition the array into chunks. |
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#33 | fixed | Unboxing problems in example from Stack Overflow | ||

Description |
import Data.Array.Repa arr :: Array U DIM2 Int arr = fromListUnboxed (Z :. 5 :. 5) [1..25] combined :: Array U DIM2 Int combined = computeP $ traverse arr (\_ -> Z :. 4 :. 4 :: DIM2) $ \f (Z :. x :. y) -> sumAllS $ extract f (x,y) (2,2) extract :: (DIM2 -> Int) -> (Int,Int) -> (Int,Int) -> Array D DIM2 Int extract lookup (x0,y0) (width,height) = fromFunction bounds $ \sh -> offset lookup sh where bounds = Z :. width :. height offset :: (DIM2 -> Int) -> DIM2 -> Int offset f (Z :. x :. y) = f (Z :. x + x0 :. y + y0) main = print combined |
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#34 | fixed | Ambiguous show instance. | ||

Description |
Grigory Sarnitskiy reports: Hello! I'm using repa 2.1.1.5, so maybe this issue is gone already. Nevertheless, repa's Show instance is a bit ambiguous, e.g. show of Maybe (Array DIM1 Int) "Just Array (Z :. 1) [...]" Wouldn't it be better to have "Just (Array (Z :. 1) [...])" just like elsewhere in Haskell? For example show $ Just $ Just 5 "Just (Just 5)" |

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