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```julia
using Zygote, CuArrays
CuArrays.allowscalar(false)
x, w = (cu(rand(10)), cu(rand(100,10)))
Zygote.gradient((w)->sum(w*x), w)
```
I'm not sure whether this is a Zygote or CuArrays is…
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#### Summary:
Please provide a short couple sentence summary.
command 'gcc' failed with exit status 1
#### Description:
Describe the issue as clearly as possible.
fbprophet fails, and trace…
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On 0.7/1.0 I am seeing the following issue:
```
julia> X = [0.707107 0.707107 0.0; 0.707107 -0.707107 0.0; 0.0 0.0 1.0];
julia> inv(Array(transpose(X))) # Works
julia> inv(transpose(X))
ERR…
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Most of the time you have to make a copy of the inputs to a primitive if said primitive modifies said inputs. There are some operations, however, which are efficiently invertible and for which it may,…
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While running the package tests for the upcoming 1.3, a new ambiguity in "HybridSystems.jl" was detected but it seems to originate from this package:
```jl
Cholesky and LDL: Error During Test at /…
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e.g. In order to differentiate over trace `y = einsum("ii->", A)`, we can use the [index exchange AD rule](https://giggleliu.github.io/2019/04/02/einsumbp.html).
We get the backward function for adjo…
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While doing more thorough testing of `LinearMapsAA` I uncovered this issue with the new blockmap features (that are otherwise working great):
```
A = LinearMap(ones(3,2))
B = [I A; A I]
Matrix(B…
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This is just me dreaming about the future, but wouldn't it be neat if one could write stuff like
```julia
@vectorize map(f, x)
@vectorize f.(x)
```
? :smiley:
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I'm trying to get rid of the mutation happens here
https://github.com/QuantumBFS/LuxurySparse.jl/blob/09795174112120a542fe15b786c8379e7e4b28dc/src/arraymath.jl#L29
with `Fill` (it doesn't make s…
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I am trying to write custom adjoints for FFTW functions (https://github.com/FluxML/Zygote.jl/issues/204). Some of these functions take an optional argument that can be a single number, a tuple or an a…