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< a href = "common_2hadamard_8h.html" > Go to the documentation of this file.< / a > < div class = "fragment" > < div class = "line" > < a id = "l00001" name = "l00001" > < / a > < span class = "lineno" > 1< / span > < span class = "comment" > // Copyright © 2024 Apple Inc.< / span > < / div >
< div class = "line" > < a id = "l00002" name = "l00002" > < / a > < span class = "lineno" > 2< / span > < / div >
< div class = "line" > < a id = "l00003" name = "l00003" > < / a > < span class = "lineno" > 3< / span > < span class = "preprocessor" > #pragma once< / span > < / div >
< div class = "line" > < a id = "l00004" name = "l00004" > < / a > < span class = "lineno" > 4< / span > < / div >
< div class = "line" > < a id = "l00005" name = "l00005" > < / a > < span class = "lineno" > 5< / span > < span class = "preprocessor" > #include < map> < / span > < / div >
< div class = "line" > < a id = "l00006" name = "l00006" > < / a > < span class = "lineno" > 6< / span > < / div >
< div class = "line" > < a id = "l00007" name = "l00007" > < / a > < span class = "lineno" > 7< / span > < span class = "preprocessor" > #include " < a class = "code" href = "utils_8h.html" > mlx/utils.h< / a > " < / span > < / div >
< div class = "line" > < a id = "l00008" name = "l00008" > < / a > < span class = "lineno" > 8< / span > < / div >
< div class = "line" > < a id = "l00009" name = "l00009" > < / a > < span class = "lineno" > 9< / span > < span class = "keyword" > namespace < / span > < a class = "code hl_namespace" href = "namespacemlx_1_1core.html" > mlx::core< / a > {< / div >
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< div class = "line" > < a id = "l00011" name = "l00011" > < / a > < span class = "lineno" > 11< / span > < span class = "comment" > // From http://neilsloane.com/hadamard/< / span > < / div >
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< div class = "line" > < a id = "l00025" name = "l00025" > < / a > < span class = "lineno" > 25< / span > < span class = "stringliteral" > )" ;< / span > < / div >
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< div class = "line" > < a id = "l00038" name = "l00038" > < / a > < span class = "lineno" > 38< / span > < span class = "stringliteral" > --++-+-++-+-----++++< / span > < / div >
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< div class = "line" > < a id = "l00048" name = "l00048" > < / a > < span class = "lineno" > 48< / span > < span class = "stringliteral" > )" ;< / span > < / div >
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< div class = "line" > < a id = "l00080" name = "l00080" > < / a > < span class = "lineno" > 80< / span > < span class = "stringliteral" > < / span > < / div >
< div class = "foldopen" id = "foldopen00081" data-start = "{" data-end = "}" >
< div class = "line" > < a id = "l00081" name = "l00081" > < / a > < span class = "lineno" > < a class = "line" href = "namespacemlx_1_1core.html#a50214cf406957fab27c8bef32046f030" > 81< / a > < / span > < span class = "stringliteral" > < / span > < span class = "keyword" > inline< / span > < span class = "keyword" > const< / span > std::map< int, std::string_view> < a class = "code hl_function" href = "namespacemlx_1_1core.html#a50214cf406957fab27c8bef32046f030" > hadamard_matrices< / a > () {< / div >
< div class = "line" > < a id = "l00082" name = "l00082" > < / a > < span class = "lineno" > 82< / span > < span class = "keywordflow" > return< / span > {{12, < a class = "code hl_variable" href = "namespacemlx_1_1core.html#a4beeeec4413be7adcfb14feaa9cf0e2e" > h12< / a > }, {20, < a class = "code hl_variable" href = "namespacemlx_1_1core.html#a862c6b94fec384c34a699ced64d01404" > h20< / a > }, {28, < a class = "code hl_variable" href = "namespacemlx_1_1core.html#ac447ad59592dd06435adca7df37e33ad" > h28< / a > }};< / div >
< div class = "line" > < a id = "l00083" name = "l00083" > < / a > < span class = "lineno" > 83< / span > }< / div >
< / div >
< div class = "line" > < a id = "l00084" name = "l00084" > < / a > < span class = "lineno" > 84< / span > < / div >
< div class = "foldopen" id = "foldopen00085" data-start = "{" data-end = "}" >
< div class = "line" > < a id = "l00085" name = "l00085" > < / a > < span class = "lineno" > < a class = "line" href = "namespacemlx_1_1core.html#a3a8fe7ba84714dbb5fdc81e93a07abc8" > 85< / a > < / span > < span class = "keyword" > inline< / span > std::pair< int, int> < a class = "code hl_function" href = "namespacemlx_1_1core.html#a3a8fe7ba84714dbb5fdc81e93a07abc8" > decompose_hadamard< / a > (< span class = "keywordtype" > int< / span > n) {< / div >
< div class = "line" > < a id = "l00086" name = "l00086" > < / a > < span class = "lineno" > 86< / span > < span class = "comment" > // n = m*2^k< / span > < / div >
< div class = "line" > < a id = "l00087" name = "l00087" > < / a > < span class = "lineno" > 87< / span > < span class = "keywordtype" > int< / span > m = 1;< / div >
< div class = "line" > < a id = "l00088" name = "l00088" > < / a > < span class = "lineno" > 88< / span > < span class = "keywordflow" > if< / span > (!< a class = "code hl_function" href = "namespacemlx_1_1core.html#adacbc4526e8964b267a8ec3eb1bc1a32" > is_power_of_2< / a > (n)) {< / div >
< div class = "line" > < a id = "l00089" name = "l00089" > < / a > < span class = "lineno" > 89< / span > < span class = "keyword" > auto< / span > h_matrices = < a class = "code hl_function" href = "namespacemlx_1_1core.html#a50214cf406957fab27c8bef32046f030" > hadamard_matrices< / a > ();< / div >
< div class = "line" > < a id = "l00090" name = "l00090" > < / a > < span class = "lineno" > 90< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > auto< / span > [factor, _] : h_matrices) {< / div >
< div class = "line" > < a id = "l00091" name = "l00091" > < / a > < span class = "lineno" > 91< / span > < span class = "keywordflow" > if< / span > (n % factor == 0) {< / div >
< div class = "line" > < a id = "l00092" name = "l00092" > < / a > < span class = "lineno" > 92< / span > m = factor;< / div >
< div class = "line" > < a id = "l00093" name = "l00093" > < / a > < span class = "lineno" > 93< / span > n /= factor;< / div >
< div class = "line" > < a id = "l00094" name = "l00094" > < / a > < span class = "lineno" > 94< / span > < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a id = "l00095" name = "l00095" > < / a > < span class = "lineno" > 95< / span > }< / div >
< div class = "line" > < a id = "l00096" name = "l00096" > < / a > < span class = "lineno" > 96< / span > }< / div >
< div class = "line" > < a id = "l00097" name = "l00097" > < / a > < span class = "lineno" > 97< / span > < span class = "keywordflow" > if< / span > (m == 1) {< / div >
< div class = "line" > < a id = "l00098" name = "l00098" > < / a > < span class = "lineno" > 98< / span > < span class = "keywordflow" > throw< / span > std::invalid_argument(< / div >
< div class = "line" > < a id = "l00099" name = "l00099" > < / a > < span class = "lineno" > 99< / span > < span class = "stringliteral" > " [hadamard] Only supports n = m*2^k where m in (1, 12, 20, 28)." < / span > );< / div >
< div class = "line" > < a id = "l00100" name = "l00100" > < / a > < span class = "lineno" > 100< / span > }< / div >
< div class = "line" > < a id = "l00101" name = "l00101" > < / a > < span class = "lineno" > 101< / span > }< / div >
< div class = "line" > < a id = "l00102" name = "l00102" > < / a > < span class = "lineno" > 102< / span > < span class = "keywordflow" > return< / span > {n, m};< / div >
< div class = "line" > < a id = "l00103" name = "l00103" > < / a > < span class = "lineno" > 103< / span > }< / div >
< / div >
< div class = "line" > < a id = "l00104" name = "l00104" > < / a > < span class = "lineno" > 104< / span > < / div >
< div class = "line" > < a id = "l00105" name = "l00105" > < / a > < span class = "lineno" > 105< / span > } < span class = "comment" > // namespace mlx::core< / span > < / div >
< div class = "ttc" id = "anamespacemlx_1_1core_html" > < div class = "ttname" > < a href = "namespacemlx_1_1core.html" > mlx::core< / a > < / div > < div class = "ttdef" > < b > Definition< / b > allocator.h:7< / div > < / div >
< div class = "ttc" id = "anamespacemlx_1_1core_html_a3a8fe7ba84714dbb5fdc81e93a07abc8" > < div class = "ttname" > < a href = "namespacemlx_1_1core.html#a3a8fe7ba84714dbb5fdc81e93a07abc8" > mlx::core::decompose_hadamard< / a > < / div > < div class = "ttdeci" > std::pair< int, int > decompose_hadamard(int n)< / div > < div class = "ttdef" > < b > Definition< / b > hadamard.h:85< / div > < / div >
< div class = "ttc" id = "anamespacemlx_1_1core_html_a4beeeec4413be7adcfb14feaa9cf0e2e" > < div class = "ttname" > < a href = "namespacemlx_1_1core.html#a4beeeec4413be7adcfb14feaa9cf0e2e" > mlx::core::h12< / a > < / div > < div class = "ttdeci" > constexpr std::string_view h12< / div > < div class = "ttdef" > < b > Definition< / b > hadamard.h:12< / div > < / div >
< div class = "ttc" id = "anamespacemlx_1_1core_html_a50214cf406957fab27c8bef32046f030" > < div class = "ttname" > < a href = "namespacemlx_1_1core.html#a50214cf406957fab27c8bef32046f030" > mlx::core::hadamard_matrices< / a > < / div > < div class = "ttdeci" > const std::map< int, std::string_view > hadamard_matrices()< / div > < div class = "ttdef" > < b > Definition< / b > hadamard.h:81< / div > < / div >
< div class = "ttc" id = "anamespacemlx_1_1core_html_a862c6b94fec384c34a699ced64d01404" > < div class = "ttname" > < a href = "namespacemlx_1_1core.html#a862c6b94fec384c34a699ced64d01404" > mlx::core::h20< / a > < / div > < div class = "ttdeci" > constexpr std::string_view h20< / div > < div class = "ttdef" > < b > Definition< / b > hadamard.h:27< / div > < / div >
< div class = "ttc" id = "anamespacemlx_1_1core_html_ac447ad59592dd06435adca7df37e33ad" > < div class = "ttname" > < a href = "namespacemlx_1_1core.html#ac447ad59592dd06435adca7df37e33ad" > mlx::core::h28< / a > < / div > < div class = "ttdeci" > constexpr std::string_view h28< / div > < div class = "ttdef" > < b > Definition< / b > hadamard.h:50< / div > < / div >
2025-02-15 05:44:39 +08:00
< div class = "ttc" id = "anamespacemlx_1_1core_html_adacbc4526e8964b267a8ec3eb1bc1a32" > < div class = "ttname" > < a href = "namespacemlx_1_1core.html#adacbc4526e8964b267a8ec3eb1bc1a32" > mlx::core::is_power_of_2< / a > < / div > < div class = "ttdeci" > bool is_power_of_2(int n)< / div > < div class = "ttdef" > < b > Definition< / b > utils.h:105< / div > < / div >
2024-10-15 23:12:17 +08:00
< div class = "ttc" id = "autils_8h_html" > < div class = "ttname" > < a href = "utils_8h.html" > utils.h< / a > < / div > < / div >
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