xtensor

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[Bug] Fails to compile with TBB and XSIMD enabled

9

Windows 10 MSVC 2019 Enterprise C++20 Fails to compile with both XSIMD and TBB enabled. Fails with the following `syntax error: 'template'` On line 1252 of xassign.hpp

spectre-ns

WIP add integer power

1

just to not forget this work :) One question: should this better live at the xsimd level?

wolfv

Bad performance of views/slicing

3

Hi, I am still getting used to the library, but was able to isolate an unexpected performance hit. I want to update just a subregion of a pre-allocated 1D tensor....

razorx89

[Documentation] Convolve and possibly other functions omitted from documentation

1

I have added a couple routines with doxygen but no reference in readthedocs.io, there are likely many functions missing from the package.

spectre-ns

Request for np.ndindex equivalent

4

It would be useful to have an equivalent function in xtensor to ndindex. https://docs.scipy.org/doc/numpy/reference/generated/numpy.ndindex.html This allows to iterate over all the nd indices of a shape regardless of the number...

faysou

arm64 (neon64) bool: usage of batch type with unsupported type

2

xsimd 10.0.0 exposed an error from xtensor (0.24.7) on arm64 architecture (neon64). The error was reported at https://github.com/xtensor-stack/xsimd/issues/945 : ``` 127s [ 26%] Building CXX object CMakeFiles/test_xtensor_lib.dir/test_xoptional_assembly.cpp.o 127s /usr/bin/g++ -DXSIMD_ENABLE_XTL_COMPLEX...

drew-parsons

Using xtensors with booleans with xsimd: Compilation failure / inefficient code

2

The following simple test code does not compile when using -DXTENSOR_USE_XSIMD: ``` #include void xtensor_or(xt::xtensor_fixed& b1, const xt::xtensor_fixed& b2) { b1 = b1 | b2; } ``` The compiler complains...

mnijhuis-tos

Better documention of xview::data()

1

The current documentation is "auto data() -> ... Return the pointer to the underlying buffer." For people using this library for the first time it may be easy to misunderstand...

tsoj

gcc-13 triggers EXPECT_EQ floating point comparison failure

2

#2435 (PR #2436) fixed some instances of EXPECT_EQ being used for floating point comparison instead of EXPECT_DOUBLE_EQ. gcc-13 appears to have uncovered a few more, causing test failure on i386...

drew-parsons

[Question] Is there an easy path to point the XSIMD allocator at std::pmr or a custom memory pool?

1

I want to be more flexible in my memory usage in my program's hot path. To do this I need to point xtensor allocations at a memory pool ideally also...

spectre-ns