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< a href = "backend_2common_2utils_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 © 2023-2024 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 < vector> < / 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 = "array_8h.html" > mlx/array.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 >
< div class = "line" > < a id = "l00010" name = "l00010" > < / a > < span class = "lineno" > 10< / span > < / div >
< div class = "line" > < a id = "l00011" name = "l00011" > < / a > < span class = "lineno" > 11< / span > < span class = "keyword" > template< / span > < < span class = "keyword" > typename< / span > str< span class = "keywordtype" > id< / span > e_t> < / div >
< div class = "foldopen" id = "foldopen00012" data-start = "{" data-end = "}" >
< div class = "line" > < a id = "l00012" name = "l00012" > < / a > < span class = "lineno" > < a class = "line" href = "namespacemlx_1_1core.html#a4950c3248e70280b406a4f1430a85880" > 12< / a > < / span > < span class = "keyword" > inline< / span > stride_t < a class = "code hl_function" href = "namespacemlx_1_1core.html#a4950c3248e70280b406a4f1430a85880" > elem_to_loc< / a > (< / div >
< div class = "line" > < a id = "l00013" name = "l00013" > < / a > < span class = "lineno" > 13< / span > < span class = "keywordtype" > int< / span > elem,< / div >
< div class = "line" > < a id = "l00014" name = "l00014" > < / a > < span class = "lineno" > 14< / span > < span class = "keyword" > const< / span > std::vector< int> & shape,< / div >
< div class = "line" > < a id = "l00015" name = "l00015" > < / a > < span class = "lineno" > 15< / span > < span class = "keyword" > const< / span > std::vector< stride_t> & strides) {< / div >
< div class = "line" > < a id = "l00016" name = "l00016" > < / a > < span class = "lineno" > 16< / span > stride_t loc = 0;< / div >
< div class = "line" > < a id = "l00017" name = "l00017" > < / a > < span class = "lineno" > 17< / span > < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = shape.size() - 1; i > = 0; --i) {< / div >
< div class = "line" > < a id = "l00018" name = "l00018" > < / a > < span class = "lineno" > 18< / span > < span class = "keyword" > auto< / span > q_and_r = ldiv(elem, shape[i]);< / div >
< div class = "line" > < a id = "l00019" name = "l00019" > < / a > < span class = "lineno" > 19< / span > loc += q_and_r.rem * strides[i];< / div >
< div class = "line" > < a id = "l00020" name = "l00020" > < / a > < span class = "lineno" > 20< / span > elem = q_and_r.quot;< / div >
< div class = "line" > < a id = "l00021" name = "l00021" > < / a > < span class = "lineno" > 21< / span > }< / div >
< div class = "line" > < a id = "l00022" name = "l00022" > < / a > < span class = "lineno" > 22< / span > < span class = "keywordflow" > return< / span > loc;< / div >
< div class = "line" > < a id = "l00023" name = "l00023" > < / a > < span class = "lineno" > 23< / span > }< / div >
< / div >
< div class = "line" > < a id = "l00024" name = "l00024" > < / a > < span class = "lineno" > 24< / span > < / div >
< div class = "foldopen" id = "foldopen00025" data-start = "{" data-end = "}" >
< div class = "line" > < a id = "l00025" name = "l00025" > < / a > < span class = "lineno" > < a class = "line" href = "namespacemlx_1_1core.html#ad7e4f40eb351b554bbfabb6d7d600d06" > 25< / a > < / span > < span class = "keyword" > inline< / span > < span class = "keywordtype" > size_t< / span > < a class = "code hl_function" href = "namespacemlx_1_1core.html#a4950c3248e70280b406a4f1430a85880" > elem_to_loc< / a > (< span class = "keywordtype" > int< / span > elem, < span class = "keyword" > const< / span > < a class = "code hl_class" href = "classmlx_1_1core_1_1array.html" > array< / a > & a) {< / div >
< div class = "line" > < a id = "l00026" name = "l00026" > < / a > < span class = "lineno" > 26< / span > < span class = "keywordflow" > if< / span > (a.< a class = "code hl_function" href = "classmlx_1_1core_1_1array.html#a0a20a6065ae71b64c1e3aa22a45fd8a1" > flags< / a > ().< a class = "code hl_variable" href = "structmlx_1_1core_1_1array_1_1_flags.html#a3170fa381dc7a90f6eabcc029bdf9bfd" > row_contiguous< / a > ) {< / div >
< div class = "line" > < a id = "l00027" name = "l00027" > < / a > < span class = "lineno" > 27< / span > < span class = "keywordflow" > return< / span > elem;< / div >
< div class = "line" > < a id = "l00028" name = "l00028" > < / a > < span class = "lineno" > 28< / span > }< / div >
< div class = "line" > < a id = "l00029" name = "l00029" > < / a > < span class = "lineno" > 29< / span > < span class = "keywordflow" > return< / span > < a class = "code hl_function" href = "namespacemlx_1_1core.html#a4950c3248e70280b406a4f1430a85880" > elem_to_loc< / a > (elem, a.< a class = "code hl_function" href = "classmlx_1_1core_1_1array.html#a4a2a2c8a4a5beafd723fc13f2055d55d" > shape< / a > (), a.< a class = "code hl_function" href = "classmlx_1_1core_1_1array.html#a186cf2648da92584d5c1c8b24e69629b" > strides< / a > ());< / div >
< div class = "line" > < a id = "l00030" name = "l00030" > < / a > < span class = "lineno" > 30< / span > }< / div >
< / div >
< div class = "line" > < a id = "l00031" name = "l00031" > < / a > < span class = "lineno" > 31< / span > < / div >
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< div class = "line" > < a id = "l00032" name = "l00032" > < / a > < span class = "lineno" > 32< / span > < span class = "keyword" > template< / span > < < span class = "keyword" > typename< / span > str< span class = "keywordtype" > id< / span > e_t> < / div >
< div class = "foldopen" id = "foldopen00033" data-start = "{" data-end = "}" >
< div class = "line" > < a id = "l00033" name = "l00033" > < / a > < span class = "lineno" > < a class = "line" href = "namespacemlx_1_1core.html#ac9fb1286a1a00395e901dbff80560895" > 33< / a > < / span > std::vector< stride_t> < a class = "code hl_function" href = "namespacemlx_1_1core.html#ac9fb1286a1a00395e901dbff80560895" > make_contiguous_strides< / a > (< span class = "keyword" > const< / span > std::vector< int> & shape) {< / div >
< div class = "line" > < a id = "l00034" name = "l00034" > < / a > < span class = "lineno" > 34< / span > std::vector< stride_t> strides(shape.size(), 1);< / div >
< div class = "line" > < a id = "l00035" name = "l00035" > < / a > < span class = "lineno" > 35< / span > < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = shape.size() - 1; i > 0; i--) {< / div >
< div class = "line" > < a id = "l00036" name = "l00036" > < / a > < span class = "lineno" > 36< / span > strides[i - 1] = strides[i] * shape[i];< / div >
< div class = "line" > < a id = "l00037" name = "l00037" > < / a > < span class = "lineno" > 37< / span > }< / div >
< div class = "line" > < a id = "l00038" name = "l00038" > < / a > < span class = "lineno" > 38< / span > < span class = "keywordflow" > return< / span > strides;< / div >
< div class = "line" > < a id = "l00039" name = "l00039" > < / a > < span class = "lineno" > 39< / span > }< / div >
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< / div >
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< div class = "line" > < a id = "l00040" name = "l00040" > < / a > < span class = "lineno" > 40< / span > < / div >
< div class = "line" > < a id = "l00041" name = "l00041" > < / a > < span class = "lineno" > 41< / span > < span class = "comment" > // Collapse dims that are contiguous to possibly route to a better kernel< / span > < / div >
< div class = "line" > < a id = "l00042" name = "l00042" > < / a > < span class = "lineno" > 42< / span > < span class = "comment" > // e.g. for x = transpose(array({0, 1, 2, 3, 4, 5, 6, 7}, {2, 2, 2}), {2, 0, 1})< / span > < / div >
< div class = "line" > < a id = "l00043" name = "l00043" > < / a > < span class = "lineno" > 43< / span > < span class = "comment" > // should return {{2, 4}, {{1, 2}}}.< / span > < / div >
< div class = "line" > < a id = "l00044" name = "l00044" > < / a > < span class = "lineno" > 44< / span > < span class = "comment" > //< / span > < / div >
< div class = "line" > < a id = "l00045" name = "l00045" > < / a > < span class = "lineno" > 45< / span > < span class = "comment" > // When multiple arrays are passed they should all have the same shape. The< / span > < / div >
< div class = "line" > < a id = "l00046" name = "l00046" > < / a > < span class = "lineno" > 46< / span > < span class = "comment" > // collapsed axes are also the same so one shape is returned.< / span > < / div >
< div class = "line" > < a id = "l00047" name = "l00047" > < / a > < span class = "lineno" > 47< / span > < span class = "keyword" > template< / span > < < span class = "keyword" > typename< / span > str< span class = "keywordtype" > id< / span > e_t> < / div >
< div class = "line" > < a id = "l00048" name = "l00048" > < / a > < span class = "lineno" > 48< / span > < span class = "keyword" > inline< / span > std::tuple< std::vector< int> , std::vector< std::vector< stride_t> > > < / div >
< div class = "foldopen" id = "foldopen00049" data-start = "{" data-end = "}" >
< div class = "line" > < a id = "l00049" name = "l00049" > < / a > < span class = "lineno" > < a class = "line" href = "namespacemlx_1_1core.html#a9d151ba3e138be1954d2f51f85806b0c" > 49< / a > < / span > < a class = "code hl_function" href = "namespacemlx_1_1core.html#a9d151ba3e138be1954d2f51f85806b0c" > collapse_contiguous_dims< / a > (< / div >
< div class = "line" > < a id = "l00050" name = "l00050" > < / a > < span class = "lineno" > 50< / span > < span class = "keyword" > const< / span > std::vector< int> & shape,< / div >
< div class = "line" > < a id = "l00051" name = "l00051" > < / a > < span class = "lineno" > 51< / span > < span class = "keyword" > const< / span > std::vector< std::vector< stride_t> > strides) {< / div >
< div class = "line" > < a id = "l00052" name = "l00052" > < / a > < span class = "lineno" > 52< / span > < span class = "comment" > // Make a vector that has axes separated with -1. Collapse all axes between< / span > < / div >
< div class = "line" > < a id = "l00053" name = "l00053" > < / a > < span class = "lineno" > 53< / span > < span class = "comment" > // -1.< / span > < / div >
< div class = "line" > < a id = "l00054" name = "l00054" > < / a > < span class = "lineno" > 54< / span > std::vector< int> to_collapse;< / div >
< div class = "line" > < a id = "l00055" name = "l00055" > < / a > < span class = "lineno" > 55< / span > < span class = "keywordflow" > if< / span > (shape.size() > 0) {< / div >
< div class = "line" > < a id = "l00056" name = "l00056" > < / a > < span class = "lineno" > 56< / span > to_collapse.push_back(0);< / div >
< div class = "line" > < a id = "l00057" name = "l00057" > < / a > < span class = "lineno" > 57< / span > < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 1; i < shape.size(); i++) {< / div >
< div class = "line" > < a id = "l00058" name = "l00058" > < / a > < span class = "lineno" > 58< / span > < span class = "keywordtype" > bool< / span > contiguous = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a id = "l00059" name = "l00059" > < / a > < span class = "lineno" > 59< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > std::vector< stride_t> & st : strides) {< / div >
< div class = "line" > < a id = "l00060" name = "l00060" > < / a > < span class = "lineno" > 60< / span > < span class = "keywordflow" > if< / span > (st[i] * shape[i] != st[i - 1]) {< / div >
< div class = "line" > < a id = "l00061" name = "l00061" > < / a > < span class = "lineno" > 61< / span > contiguous = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a id = "l00062" name = "l00062" > < / a > < span class = "lineno" > 62< / span > }< / div >
< div class = "line" > < a id = "l00063" name = "l00063" > < / a > < span class = "lineno" > 63< / span > < span class = "keywordflow" > if< / span > (!contiguous) {< / div >
< div class = "line" > < a id = "l00064" name = "l00064" > < / a > < span class = "lineno" > 64< / span > < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a id = "l00065" name = "l00065" > < / a > < span class = "lineno" > 65< / span > }< / div >
< div class = "line" > < a id = "l00066" name = "l00066" > < / a > < span class = "lineno" > 66< / span > }< / div >
< div class = "line" > < a id = "l00067" name = "l00067" > < / a > < span class = "lineno" > 67< / span > < span class = "keywordflow" > if< / span > (!contiguous) {< / div >
< div class = "line" > < a id = "l00068" name = "l00068" > < / a > < span class = "lineno" > 68< / span > to_collapse.push_back(-1);< / div >
< div class = "line" > < a id = "l00069" name = "l00069" > < / a > < span class = "lineno" > 69< / span > }< / div >
< div class = "line" > < a id = "l00070" name = "l00070" > < / a > < span class = "lineno" > 70< / span > to_collapse.push_back(i);< / div >
< div class = "line" > < a id = "l00071" name = "l00071" > < / a > < span class = "lineno" > 71< / span > }< / div >
< div class = "line" > < a id = "l00072" name = "l00072" > < / a > < span class = "lineno" > 72< / span > to_collapse.push_back(-1);< / div >
< div class = "line" > < a id = "l00073" name = "l00073" > < / a > < span class = "lineno" > 73< / span > }< / div >
< div class = "line" > < a id = "l00074" name = "l00074" > < / a > < span class = "lineno" > 74< / span > < / div >
< div class = "line" > < a id = "l00075" name = "l00075" > < / a > < span class = "lineno" > 75< / span > std::vector< int> out_shape;< / div >
< div class = "line" > < a id = "l00076" name = "l00076" > < / a > < span class = "lineno" > 76< / span > std::vector< std::vector< stride_t> > out_strides(strides.size());< / div >
< div class = "line" > < a id = "l00077" name = "l00077" > < / a > < span class = "lineno" > 77< / span > < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < to_collapse.size(); i++) {< / div >
< div class = "line" > < a id = "l00078" name = "l00078" > < / a > < span class = "lineno" > 78< / span > < span class = "keywordtype" > int< / span > current_shape = shape[to_collapse[i]];< / div >
< div class = "line" > < a id = "l00079" name = "l00079" > < / a > < span class = "lineno" > 79< / span > < span class = "keywordflow" > while< / span > (to_collapse[++i] != -1) {< / div >
< div class = "line" > < a id = "l00080" name = "l00080" > < / a > < span class = "lineno" > 80< / span > current_shape *= shape[to_collapse[i]];< / div >
< div class = "line" > < a id = "l00081" name = "l00081" > < / a > < span class = "lineno" > 81< / span > }< / div >
< div class = "line" > < a id = "l00082" name = "l00082" > < / a > < span class = "lineno" > 82< / span > out_shape.push_back(current_shape);< / div >
< div class = "line" > < a id = "l00083" name = "l00083" > < / a > < span class = "lineno" > 83< / span > < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > j = 0; j < strides.size(); j++) {< / div >
< div class = "line" > < a id = "l00084" name = "l00084" > < / a > < span class = "lineno" > 84< / span > < span class = "keyword" > const< / span > std::vector< stride_t> & st = strides[j];< / div >
< div class = "line" > < a id = "l00085" name = "l00085" > < / a > < span class = "lineno" > 85< / span > out_strides[j].push_back(st[to_collapse[i - 1]]);< / div >
< div class = "line" > < a id = "l00086" name = "l00086" > < / a > < span class = "lineno" > 86< / span > }< / div >
< div class = "line" > < a id = "l00087" name = "l00087" > < / a > < span class = "lineno" > 87< / span > }< / div >
< div class = "line" > < a id = "l00088" name = "l00088" > < / a > < span class = "lineno" > 88< / span > < / div >
< div class = "line" > < a id = "l00089" name = "l00089" > < / a > < span class = "lineno" > 89< / span > < span class = "keywordflow" > return< / span > std::make_tuple(out_shape, out_strides);< / div >
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< div class = "line" > < a id = "l00090" name = "l00090" > < / a > < span class = "lineno" > 90< / span > }< / div >
< / div >
< div class = "line" > < a id = "l00091" name = "l00091" > < / a > < span class = "lineno" > 91< / span > < / div >
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< div class = "line" > < a id = "l00092" name = "l00092" > < / a > < span class = "lineno" > 92< / span > < span class = "keyword" > inline< / span > std::tuple< std::vector< int> , std::vector< std::vector< size_t> > > < / div >
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< div class = "foldopen" id = "foldopen00093" data-start = "{" data-end = "}" >
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< div class = "line" > < a id = "l00093" name = "l00093" > < / a > < span class = "lineno" > < a class = "line" href = "namespacemlx_1_1core.html#a8430e0baac3f6d8a2ab22428f9c0b7e2" > 93< / a > < / span > < a class = "code hl_function" href = "namespacemlx_1_1core.html#a9d151ba3e138be1954d2f51f85806b0c" > collapse_contiguous_dims< / a > (< span class = "keyword" > const< / span > std::vector< array> & xs) {< / div >
< div class = "line" > < a id = "l00094" name = "l00094" > < / a > < span class = "lineno" > 94< / span > std::vector< std::vector< size_t> > strides;< / div >
< div class = "line" > < a id = "l00095" name = "l00095" > < / a > < span class = "lineno" > 95< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > auto< / span > & x : xs) {< / div >
< div class = "line" > < a id = "l00096" name = "l00096" > < / a > < span class = "lineno" > 96< / span > strides.emplace_back(x.strides());< / div >
< div class = "line" > < a id = "l00097" name = "l00097" > < / a > < span class = "lineno" > 97< / span > }< / div >
< div class = "line" > < a id = "l00098" name = "l00098" > < / a > < span class = "lineno" > 98< / span > < span class = "keywordflow" > return< / span > < a class = "code hl_function" href = "namespacemlx_1_1core.html#a9d151ba3e138be1954d2f51f85806b0c" > collapse_contiguous_dims< / a > (xs[0].shape(), strides);< / div >
< div class = "line" > < a id = "l00099" name = "l00099" > < / a > < span class = "lineno" > 99< / span > }< / div >
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< / div >
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< 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 > < span class = "keyword" > template< / span > < < span class = "keyword" > typename< / span > ... Arrays, < span class = "keyword" > typename< / span > = < a class = "code hl_typedef" href = "namespacemlx_1_1core.html#af89751d79339f3e4d9318ea97d64d114" > enable_for_arrays_t< / a > < Arrays...> > < / div >
< div class = "foldopen" id = "foldopen00102" data-start = "{" data-end = "}" >
< div class = "line" > < a id = "l00102" name = "l00102" > < / a > < span class = "lineno" > < a class = "line" href = "namespacemlx_1_1core.html#ac813412cce77fc1340dcfefc6e099276" > 102< / a > < / span > < span class = "keyword" > inline< / span > < span class = "keyword" > auto< / span > < a class = "code hl_function" href = "namespacemlx_1_1core.html#a9d151ba3e138be1954d2f51f85806b0c" > collapse_contiguous_dims< / a > (Arrays& & ... xs) {< / div >
< div class = "line" > < a id = "l00103" name = "l00103" > < / a > < span class = "lineno" > 103< / span > < span class = "keywordflow" > return< / span > < a class = "code hl_function" href = "namespacemlx_1_1core.html#a9d151ba3e138be1954d2f51f85806b0c" > collapse_contiguous_dims< / a > (< / div >
< div class = "line" > < a id = "l00104" name = "l00104" > < / a > < span class = "lineno" > 104< / span > std::vector< array> {std::forward< Arrays> (xs)...});< / div >
< div class = "line" > < a id = "l00105" name = "l00105" > < / a > < span class = "lineno" > 105< / span > }< / div >
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< / div >
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< div class = "line" > < a id = "l00106" name = "l00106" > < / a > < span class = "lineno" > 106< / span > < / div >
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< div class = "line" > < a id = "l00107" name = "l00107" > < / a > < span class = "lineno" > 107< / span > < span class = "comment" > // The single array version of the above.< / span > < / div >
< div class = "line" > < a id = "l00108" name = "l00108" > < / a > < span class = "lineno" > 108< / span > < span class = "keyword" > inline< / span > std::tuple< std::vector< int> , std::vector< size_t> > < / div >
< div class = "foldopen" id = "foldopen00109" data-start = "{" data-end = "}" >
< div class = "line" > < a id = "l00109" name = "l00109" > < / a > < span class = "lineno" > < a class = "line" href = "namespacemlx_1_1core.html#ad2f039e04bf902c9d98f631a67cc63ed" > 109< / a > < / span > < a class = "code hl_function" href = "namespacemlx_1_1core.html#a9d151ba3e138be1954d2f51f85806b0c" > collapse_contiguous_dims< / a > (< / div >
< div class = "line" > < a id = "l00110" name = "l00110" > < / a > < span class = "lineno" > 110< / span > < span class = "keyword" > const< / span > std::vector< int> & shape,< / div >
< div class = "line" > < a id = "l00111" name = "l00111" > < / a > < span class = "lineno" > 111< / span > < span class = "keyword" > const< / span > std::vector< size_t> & strides) {< / div >
< div class = "line" > < a id = "l00112" name = "l00112" > < / a > < span class = "lineno" > 112< / span > std::vector< int> collapsed_shape;< / div >
< div class = "line" > < a id = "l00113" name = "l00113" > < / a > < span class = "lineno" > 113< / span > std::vector< size_t> collapsed_strides;< / div >
< div class = "line" > < a id = "l00114" name = "l00114" > < / a > < span class = "lineno" > 114< / span > < / div >
< div class = "line" > < a id = "l00115" name = "l00115" > < / a > < span class = "lineno" > 115< / span > < span class = "keywordflow" > if< / span > (shape.size() > 0) {< / div >
< div class = "line" > < a id = "l00116" name = "l00116" > < / a > < span class = "lineno" > 116< / span > collapsed_shape.push_back(shape[0]);< / div >
< div class = "line" > < a id = "l00117" name = "l00117" > < / a > < span class = "lineno" > 117< / span > collapsed_strides.push_back(strides[0]);< / div >
< div class = "line" > < a id = "l00118" name = "l00118" > < / a > < span class = "lineno" > 118< / span > < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 1; i < shape.size(); i++) {< / div >
< div class = "line" > < a id = "l00119" name = "l00119" > < / a > < span class = "lineno" > 119< / span > < span class = "keywordflow" > if< / span > (strides[i] * shape[i] != collapsed_strides.back() ||< / div >
< div class = "line" > < a id = "l00120" name = "l00120" > < / a > < span class = "lineno" > 120< / span > collapsed_shape.back() * < span class = "keyword" > static_cast< < / span > < span class = "keywordtype" > size_t< / span > < span class = "keyword" > > < / span > (shape[i]) > < / div >
< div class = "line" > < a id = "l00121" name = "l00121" > < / a > < span class = "lineno" > 121< / span > std::numeric_limits< int> ::max()) {< / div >
< div class = "line" > < a id = "l00122" name = "l00122" > < / a > < span class = "lineno" > 122< / span > collapsed_shape.push_back(shape[i]);< / div >
< div class = "line" > < a id = "l00123" name = "l00123" > < / a > < span class = "lineno" > 123< / span > collapsed_strides.push_back(strides[i]);< / div >
< div class = "line" > < a id = "l00124" name = "l00124" > < / a > < span class = "lineno" > 124< / span > } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a id = "l00125" name = "l00125" > < / a > < span class = "lineno" > 125< / span > collapsed_shape.back() *= shape[i];< / div >
< div class = "line" > < a id = "l00126" name = "l00126" > < / a > < span class = "lineno" > 126< / span > collapsed_strides.back() = strides[i];< / div >
< div class = "line" > < a id = "l00127" name = "l00127" > < / a > < span class = "lineno" > 127< / span > }< / div >
< div class = "line" > < a id = "l00128" name = "l00128" > < / a > < span class = "lineno" > 128< / span > }< / div >
< div class = "line" > < a id = "l00129" name = "l00129" > < / a > < span class = "lineno" > 129< / span > }< / div >
< div class = "line" > < a id = "l00130" name = "l00130" > < / a > < span class = "lineno" > 130< / span > < / div >
< div class = "line" > < a id = "l00131" name = "l00131" > < / a > < span class = "lineno" > 131< / span > < span class = "keywordflow" > return< / span > std::make_tuple(collapsed_shape, collapsed_strides);< / div >
< div class = "line" > < a id = "l00132" name = "l00132" > < / a > < span class = "lineno" > 132< / span > }< / div >
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< / div >
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< div class = "line" > < a id = "l00133" name = "l00133" > < / a > < span class = "lineno" > 133< / span > < / div >
< div class = "line" > < a id = "l00134" name = "l00134" > < / a > < span class = "lineno" > 134< / span > < span class = "keyword" > template< / span > < < span class = "keyword" > typename< / span > str< span class = "keywordtype" > id< / span > e_t> < / div >
< div class = "foldopen" id = "foldopen00135" data-start = "{" data-end = "}" >
< div class = "line" > < a id = "l00135" name = "l00135" > < / a > < span class = "lineno" > < a class = "line" href = "namespacemlx_1_1core.html#a847b0a276663d9ddb5cac905ee977f03" > 135< / a > < / span > < span class = "keyword" > inline< / span > < span class = "keyword" > auto< / span > < a class = "code hl_function" href = "namespacemlx_1_1core.html#a847b0a276663d9ddb5cac905ee977f03" > check_contiguity< / a > (< / div >
< div class = "line" > < a id = "l00136" name = "l00136" > < / a > < span class = "lineno" > 136< / span > < span class = "keyword" > const< / span > std::vector< int> & shape,< / div >
< div class = "line" > < a id = "l00137" name = "l00137" > < / a > < span class = "lineno" > 137< / span > < span class = "keyword" > const< / span > std::vector< stride_t> & strides) {< / div >
< div class = "line" > < a id = "l00138" name = "l00138" > < / a > < span class = "lineno" > 138< / span > < span class = "keywordtype" > size_t< / span > data_size = 1;< / div >
< div class = "line" > < a id = "l00139" name = "l00139" > < / a > < span class = "lineno" > 139< / span > < span class = "keywordtype" > size_t< / span > f_stride = 1;< / div >
< div class = "line" > < a id = "l00140" name = "l00140" > < / a > < span class = "lineno" > 140< / span > < span class = "keywordtype" > size_t< / span > b_stride = 1;< / div >
< div class = "line" > < a id = "l00141" name = "l00141" > < / a > < span class = "lineno" > 141< / span > < span class = "keywordtype" > bool< / span > is_row_contiguous = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a id = "l00142" name = "l00142" > < / a > < span class = "lineno" > 142< / span > < span class = "keywordtype" > bool< / span > is_col_contiguous = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a id = "l00143" name = "l00143" > < / a > < span class = "lineno" > 143< / span > < / div >
< div class = "line" > < a id = "l00144" name = "l00144" > < / a > < span class = "lineno" > 144< / span > < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0, ri = shape.size() - 1; ri > = 0; i++, ri--) {< / div >
< div class = "line" > < a id = "l00145" name = "l00145" > < / a > < span class = "lineno" > 145< / span > is_col_contiguous & = strides[i] == f_stride || shape[i] == 1;< / div >
< div class = "line" > < a id = "l00146" name = "l00146" > < / a > < span class = "lineno" > 146< / span > is_row_contiguous & = strides[ri] == b_stride || shape[ri] == 1;< / div >
< div class = "line" > < a id = "l00147" name = "l00147" > < / a > < span class = "lineno" > 147< / span > f_stride *= shape[i];< / div >
< div class = "line" > < a id = "l00148" name = "l00148" > < / a > < span class = "lineno" > 148< / span > b_stride *= shape[ri];< / div >
< div class = "line" > < a id = "l00149" name = "l00149" > < / a > < span class = "lineno" > 149< / span > < span class = "keywordflow" > if< / span > (strides[i] > 0) {< / div >
< div class = "line" > < a id = "l00150" name = "l00150" > < / a > < span class = "lineno" > 150< / span > data_size *= shape[i];< / div >
< div class = "line" > < a id = "l00151" name = "l00151" > < / a > < span class = "lineno" > 151< / span > }< / div >
< div class = "line" > < a id = "l00152" name = "l00152" > < / a > < span class = "lineno" > 152< / span > }< / div >
< div class = "line" > < a id = "l00153" name = "l00153" > < / a > < span class = "lineno" > 153< / span > < / div >
< div class = "line" > < a id = "l00154" name = "l00154" > < / a > < span class = "lineno" > 154< / span > < span class = "keywordflow" > return< / span > std::make_tuple(data_size, is_row_contiguous, is_col_contiguous);< / div >
< div class = "line" > < a id = "l00155" name = "l00155" > < / a > < span class = "lineno" > 155< / span > }< / div >
< / div >
< div class = "line" > < a id = "l00156" name = "l00156" > < / a > < span class = "lineno" > 156< / span > < / div >
< div class = "line" > < a id = "l00157" name = "l00157" > < / a > < span class = "lineno" > 157< / span > } < span class = "comment" > // namespace mlx::core< / span > < / div >
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< div class = "ttc" id = "aarray_8h_html" > < div class = "ttname" > < a href = "array_8h.html" > array.h< / a > < / div > < / div >
< div class = "ttc" id = "aclassmlx_1_1core_1_1array_html" > < div class = "ttname" > < a href = "classmlx_1_1core_1_1array.html" > mlx::core::array< / a > < / div > < div class = "ttdef" > < b > Definition< / b > array.h:20< / div > < / div >
< div class = "ttc" id = "aclassmlx_1_1core_1_1array_html_a0a20a6065ae71b64c1e3aa22a45fd8a1" > < div class = "ttname" > < a href = "classmlx_1_1core_1_1array.html#a0a20a6065ae71b64c1e3aa22a45fd8a1" > mlx::core::array::flags< / a > < / div > < div class = "ttdeci" > const Flags & flags() const< / div > < div class = "ttdoc" > Get the Flags bit-field.< / div > < div class = "ttdef" > < b > Definition< / b > array.h:290< / div > < / div >
< div class = "ttc" id = "aclassmlx_1_1core_1_1array_html_a186cf2648da92584d5c1c8b24e69629b" > < div class = "ttname" > < a href = "classmlx_1_1core_1_1array.html#a186cf2648da92584d5c1c8b24e69629b" > mlx::core::array::strides< / a > < / div > < div class = "ttdeci" > const std::vector< size_t > & strides() const< / div > < div class = "ttdoc" > The strides of the array.< / div > < div class = "ttdef" > < b > Definition< / b > array.h:113< / div > < / div >
< div class = "ttc" id = "aclassmlx_1_1core_1_1array_html_a4a2a2c8a4a5beafd723fc13f2055d55d" > < div class = "ttname" > < a href = "classmlx_1_1core_1_1array.html#a4a2a2c8a4a5beafd723fc13f2055d55d" > mlx::core::array::shape< / a > < / div > < div class = "ttdeci" > const std::vector< int > & shape() const< / div > < div class = "ttdoc" > The shape of the array as a vector of integers.< / div > < div class = "ttdef" > < b > Definition< / b > array.h:99< / div > < / 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_a4950c3248e70280b406a4f1430a85880" > < div class = "ttname" > < a href = "namespacemlx_1_1core.html#a4950c3248e70280b406a4f1430a85880" > mlx::core::elem_to_loc< / a > < / div > < div class = "ttdeci" > stride_t elem_to_loc(int elem, const std::vector< int > & shape, const std::vector< stride_t > & strides)< / div > < div class = "ttdef" > < b > Definition< / b > utils.h:12< / div > < / div >
2024-08-24 03:14:53 +08:00
< div class = "ttc" id = "anamespacemlx_1_1core_html_a847b0a276663d9ddb5cac905ee977f03" > < div class = "ttname" > < a href = "namespacemlx_1_1core.html#a847b0a276663d9ddb5cac905ee977f03" > mlx::core::check_contiguity< / a > < / div > < div class = "ttdeci" > auto check_contiguity(const std::vector< int > & shape, const std::vector< stride_t > & strides)< / div > < div class = "ttdef" > < b > Definition< / b > utils.h:135< / div > < / div >
2024-07-12 06:32:08 +08:00
< div class = "ttc" id = "anamespacemlx_1_1core_html_a9d151ba3e138be1954d2f51f85806b0c" > < div class = "ttname" > < a href = "namespacemlx_1_1core.html#a9d151ba3e138be1954d2f51f85806b0c" > mlx::core::collapse_contiguous_dims< / a > < / div > < div class = "ttdeci" > std::tuple< std::vector< int > , std::vector< std::vector< stride_t > > > collapse_contiguous_dims(const std::vector< int > & shape, const std::vector< std::vector< stride_t > > strides)< / div > < div class = "ttdef" > < b > Definition< / b > utils.h:49< / div > < / div >
< div class = "ttc" id = "anamespacemlx_1_1core_html_ac9fb1286a1a00395e901dbff80560895" > < div class = "ttname" > < a href = "namespacemlx_1_1core.html#ac9fb1286a1a00395e901dbff80560895" > mlx::core::make_contiguous_strides< / a > < / div > < div class = "ttdeci" > std::vector< stride_t > make_contiguous_strides(const std::vector< int > & shape)< / div > < div class = "ttdef" > < b > Definition< / b > utils.h:33< / div > < / div >
< div class = "ttc" id = "anamespacemlx_1_1core_html_af89751d79339f3e4d9318ea97d64d114" > < div class = "ttname" > < a href = "namespacemlx_1_1core.html#af89751d79339f3e4d9318ea97d64d114" > mlx::core::enable_for_arrays_t< / a > < / div > < div class = "ttdeci" > typename std::enable_if_t< is_arrays_v< T... > > enable_for_arrays_t< / div > < div class = "ttdef" > < b > Definition< / b > array.h:566< / div > < / div >
2024-06-07 11:28:06 +08:00
< div class = "ttc" id = "astructmlx_1_1core_1_1array_1_1_flags_html_a3170fa381dc7a90f6eabcc029bdf9bfd" > < div class = "ttname" > < a href = "structmlx_1_1core_1_1array_1_1_flags.html#a3170fa381dc7a90f6eabcc029bdf9bfd" > mlx::core::array::Flags::row_contiguous< / a > < / div > < div class = "ttdeci" > bool row_contiguous< / div > < div class = "ttdef" > < b > Definition< / b > array.h:226< / div > < / div >
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