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Speed up show for gpu models #2066

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Speed up show for gpu models #2066

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5 changes: 4 additions & 1 deletion src/layers/show.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -113,7 +113,10 @@ underscorise(n::Integer) =
join(reverse(join.(reverse.(Iterators.partition(digits(n), 3)))), '_')

function _nan_show(io::IO, x)
if !isempty(x) && _all(iszero, x)
if any(y -> y isa Zygote.AbstractGPUArray, x)
# These friendly warnings take 10-20 sec to compile the first time, for models on GPU.
printstyled(io, " (on GPU)", color=:light_black)
elseif !isempty(x) && _all(iszero, x)
printstyled(io, " (all zero)", color=:cyan)
elseif _any(isnan, x)
printstyled(io, " (some NaN)", color=:red)
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