Introduce forEach multi-stage domain specific language #4
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The goal is to remove
reduceEach
which was a workaround for Nim limitations in nim-lang/Nim#9490. This was fixed in nim-lang/Nim#9493.The domain specific language should allow a "multi-stage" parallel section with a variadic for loop similar to:
Currently
reduceEach
requirenb_chunks
to be passed as params toomp_parallel_chunks
(9ba351a) but this workaround was removed (dbd483c). FurthermorereduceEach
requires allocation of a temporary seq while the DSL would leave partial_sums' tradeoffs at the user discretion:Parallel reduction on multiple tensors is used for vector dot product and all loss functions.
Also closes #3