Now I found the descriptions in coremltools document. In newer hardware, e.g. iPhone 15 pro (A17 pro), there is increased int8-int8 compute available on NE Impact on Latency and Compute Unit Considerations https://apple.github.io/coremltools/docs-guides/source/quantization-overview.html#impact-on-latency-and-compute-unit-considerations Linear 8-Bit Quantization https://apple.github.io/coremltools/docs-guides/source/performance-impact.html#linear-8-bit-quantization The key point for A17 Pro is to quantize both weights and activations by per-tensor quantization.

I might solve it by myself. let numerators: [Float] = ... let denominators: [Float] = ... // actually these are integers in my case let denominatorsEpsilon = vDSP.add(Float.leastNonzeroMagnitude * 10000000, denominators) // (Float.leastNonzeroMagnitude * 10000000 is minimal number to avoid NaN when dividing. let divides = vDSP.divide(numerators, denominatorsEpsilon) let alternativesOfNAN: [Float] = ... let denominatorsClip = vDSP.clip(denominators, to: 0...1) // denominatorsClip are 0 or 1 since denominators are integers let result = vDSP.subtract(multiplication: (divides, denominatorsClip), multiplication: (alternativesOfNAN, vDSP.add(-1, denominatorsClip))) I don't like this code since it is not precise and includes many unnecessary operations, but it is much faster than code checking isNaN.

Sorry, I misunderstood. What I need is masking nan values, not gathering non-nan values. As you said, vDSP_vdiv returns nan(, not inf) when you divide by zero. And I cannot find any effective compare operations to mask nan. Are there any good functions? What I am really doing is, let numerators: [Float] = ... let denominators: [Float] = ... let divides = vDSP.divide(numerators, denominators) let alternativesOfNAN: [Float] = ... for i in divides { if divides[i].isNaN { divides[i] = alternativesOfNAN[i] } } The last loop is quite slow compared with other parts using vDSP.

Thank you! vDSP_vcmprs is what I need!

I solved it by myself. newDocument argument returns a document with some magic keyword. If a document of the argument of editor argument has the magic keyword, editor shows a template selector view. The template selector view updates the document and it trigger showing a real editor view.

Now I noticed that this issue was not posting. Any notification banners, such as timer alert, are prevented during my broadcast upload extension is running. Do I need special settings of the extension to allow banners?

I had flied this issue via Feedback Assistant on 2022/09/20.(FB11549664) No response yet.

Rincewind san, Thank you for your comment! However, I confirmed that both windows' isKeyWindow are true and no didBecomeKeyNotification are triggered even when the app has two scenes. I think that they are deprecated.

Wrapping the related code by autoreleasepool solved this issue. I have never known existence of autoreleasepool in Swift.

No. What I want is to enable close button of the app window even if a modal is opened.