comparison: src/Iterate.jl
src/Iterate.jl
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- 888dfd34d24a
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| 1 ################################# | |
| 2 # Tools for iterative algorithms | |
| 3 ################################# | |
| 4 | |
| 5 module Iterate | |
| 6 | |
| 7 using Printf | |
| 8 | |
| 9 ############## | |
| 10 # Our exports | |
| 11 ############## | |
| 12 | |
| 13 export simple_iterate | |
| 14 | |
| 15 ######################################################################## | |
| 16 # Simple itertion function, calling `step()` `params.maxiter` times and | |
| 17 # reporting objective value every `params.verbose_iter` iterations. | |
| 18 # The function `step` should take as its argument a function that itself | |
| 19 # takes as its argument a function that calculates the objective value | |
| 20 # on demand. | |
| 21 ######################################################################## | |
| 22 | |
| 23 function simple_iterate(step :: Function, | |
| 24 params::NamedTuple) | |
| 25 for iter=1:params.maxiter | |
| 26 step() do calc_objective | |
| 27 if params.verbose_iter!=0 && mod(iter, params.verbose_iter) == 0 | |
| 28 v, _ = calc_objective() | |
| 29 @printf("%d/%d J=%f\n", iter, params.maxiter, v) | |
| 30 return true | |
| 31 end | |
| 32 end | |
| 33 end | |
| 34 end | |
| 35 | |
| 36 function simple_iterate(step :: Function, | |
| 37 datachannel::Channel{T}, | |
| 38 params::NamedTuple) where T | |
| 39 for iter=1:params.maxiter | |
| 40 d = take!(datachannel) | |
| 41 step(d) do calc_objective | |
| 42 if params.verbose_iter!=0 && mod(iter, params.verbose_iter) == 0 | |
| 43 v, _ = calc_objective() | |
| 44 @printf("%d/%d J=%f\n", iter, params.maxiter, v) | |
| 45 return true | |
| 46 end | |
| 47 end | |
| 48 end | |
| 49 end | |
| 50 | |
| 51 end | |
| 52 |
