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< a href = "steel__gemm__splitk_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 = "keyword" > using namespace < / span > < a class = "code hl_namespace" href = "namespacemlx_1_1steel.html" > mlx::steel< / a > ;< / div >
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< div class = "line" > < a id = "l00004" name = "l00004" > < / a > < span class = "lineno" > 4< / span > < / div >
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< div class = "line" > < a id = "l00006" name = "l00006" > < / a > < span class = "lineno" > 6< / span > < span class = "comment" > // GEMM kernels< / 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" > template< / span > < < / div >
< div class = "line" > < a id = "l00010" name = "l00010" > < / a > < span class = "lineno" > 10< / span > < span class = "keyword" > typename< / span > T,< / div >
< div class = "line" > < a id = "l00011" name = "l00011" > < / a > < span class = "lineno" > 11< / span > < span class = "keyword" > typename< / span > U,< / div >
< div class = "line" > < a id = "l00012" name = "l00012" > < / a > < span class = "lineno" > 12< / span > < span class = "keywordtype" > int< / span > BM,< / div >
< div class = "line" > < a id = "l00013" name = "l00013" > < / a > < span class = "lineno" > 13< / span > < span class = "keywordtype" > int< / span > BN,< / div >
< div class = "line" > < a id = "l00014" name = "l00014" > < / a > < span class = "lineno" > 14< / span > < span class = "keywordtype" > int< / span > BK,< / div >
< div class = "line" > < a id = "l00015" name = "l00015" > < / a > < span class = "lineno" > 15< / span > < span class = "keywordtype" > int< / span > WM,< / div >
< div class = "line" > < a id = "l00016" name = "l00016" > < / a > < span class = "lineno" > 16< / span > < span class = "keywordtype" > int< / span > WN,< / div >
< div class = "line" > < a id = "l00017" name = "l00017" > < / a > < span class = "lineno" > 17< / span > < span class = "keywordtype" > bool< / span > transpose_a,< / div >
< div class = "line" > < a id = "l00018" name = "l00018" > < / a > < span class = "lineno" > 18< / span > < span class = "keywordtype" > bool< / span > transpose_b,< / div >
< div class = "line" > < a id = "l00019" name = "l00019" > < / a > < span class = "lineno" > 19< / span > < span class = "keywordtype" > bool< / span > MN_aligned,< / div >
< div class = "line" > < a id = "l00020" name = "l00020" > < / a > < span class = "lineno" > 20< / span > < span class = "keywordtype" > bool< / span > K_aligned> < / div >
< div class = "foldopen" id = "foldopen00021" data-start = "{" data-end = "}" >
< div class = "line" > < a id = "l00021" name = "l00021" > < / a > < span class = "lineno" > < a class = "line" href = "steel__gemm__splitk_8h.html#a3be6e095a0a026d3ecf57a3e67f76188" > 21< / a > < / span > [[kernel, max_total_threads_per_threadgroup(WM* WN * 32)]] < span class = "keywordtype" > void< / span > < a class = "code hl_function" href = "steel__gemm__splitk_8h.html#a3be6e095a0a026d3ecf57a3e67f76188" > gemm_splitk< / a > (< / div >
< div class = "line" > < a id = "l00022" name = "l00022" > < / a > < span class = "lineno" > 22< / span > < span class = "keyword" > const< / span > device T* A [[buffer(0)]],< / div >
< div class = "line" > < a id = "l00023" name = "l00023" > < / a > < span class = "lineno" > 23< / span > < span class = "keyword" > const< / span > device T* B [[buffer(1)]],< / div >
< div class = "line" > < a id = "l00024" name = "l00024" > < / a > < span class = "lineno" > 24< / span > device U* C [[buffer(2)]],< / div >
< div class = "line" > < a id = "l00025" name = "l00025" > < / a > < span class = "lineno" > 25< / span > < span class = "keyword" > const< / span > constant < a class = "code hl_struct" href = "structmlx_1_1steel_1_1_g_e_m_m_spilt_k_params.html" > GEMMSpiltKParams< / a > * params [[buffer(3)]],< / div >
< div class = "line" > < a id = "l00026" name = "l00026" > < / a > < span class = "lineno" > 26< / span > uint simd_lane_id [[thread_index_in_simdgroup]],< / div >
< div class = "line" > < a id = "l00027" name = "l00027" > < / a > < span class = "lineno" > 27< / span > uint simd_group_id [[simdgroup_index_in_threadgroup]],< / div >
< div class = "line" > < a id = "l00028" name = "l00028" > < / a > < span class = "lineno" > 28< / span > uint3 tid [[threadgroup_position_in_grid]],< / div >
< div class = "line" > < a id = "l00029" name = "l00029" > < / a > < span class = "lineno" > 29< / span > uint3 lid [[thread_position_in_threadgroup]]) {< / div >
< div class = "line" > < a id = "l00030" name = "l00030" > < / a > < span class = "lineno" > 30< / span > (void)lid;< / div >
< div class = "line" > < a id = "l00031" name = "l00031" > < / a > < span class = "lineno" > 31< / span > < / div >
< div class = "line" > < a id = "l00032" name = "l00032" > < / a > < span class = "lineno" > 32< / span > < span class = "keyword" > using < / span > gemm_kernel = < a class = "code hl_struct" href = "structmlx_1_1steel_1_1_g_e_m_m_kernel.html" > GEMMKernel< / a > < < / div >
< div class = "line" > < a id = "l00033" name = "l00033" > < / a > < span class = "lineno" > 33< / span > T,< / div >
< div class = "line" > < a id = "l00034" name = "l00034" > < / a > < span class = "lineno" > 34< / span > U,< / div >
< div class = "line" > < a id = "l00035" name = "l00035" > < / a > < span class = "lineno" > 35< / span > BM,< / div >
< div class = "line" > < a id = "l00036" name = "l00036" > < / a > < span class = "lineno" > 36< / span > BN,< / div >
< div class = "line" > < a id = "l00037" name = "l00037" > < / a > < span class = "lineno" > 37< / span > BK,< / div >
< div class = "line" > < a id = "l00038" name = "l00038" > < / a > < span class = "lineno" > 38< / span > WM,< / div >
< div class = "line" > < a id = "l00039" name = "l00039" > < / a > < span class = "lineno" > 39< / span > WN,< / div >
< div class = "line" > < a id = "l00040" name = "l00040" > < / a > < span class = "lineno" > 40< / span > transpose_a,< / div >
< div class = "line" > < a id = "l00041" name = "l00041" > < / a > < span class = "lineno" > 41< / span > transpose_b,< / div >
< div class = "line" > < a id = "l00042" name = "l00042" > < / a > < span class = "lineno" > 42< / span > MN_aligned,< / div >
< div class = "line" > < a id = "l00043" name = "l00043" > < / a > < span class = "lineno" > 43< / span > K_aligned> ;< / div >
< div class = "line" > < a id = "l00044" name = "l00044" > < / a > < span class = "lineno" > 44< / span > < span class = "keyword" > using < / span > loader_a_t = < span class = "keyword" > typename< / span > gemm_kernel::loader_a_t;< / div >
< div class = "line" > < a id = "l00045" name = "l00045" > < / a > < span class = "lineno" > 45< / span > < span class = "keyword" > using < / span > loader_b_t = < span class = "keyword" > typename< / span > gemm_kernel::loader_b_t;< / div >
< div class = "line" > < a id = "l00046" name = "l00046" > < / a > < span class = "lineno" > 46< / span > < span class = "keyword" > using < / span > mma_t = < span class = "keyword" > typename< / span > gemm_kernel::mma_t;< / div >
< div class = "line" > < a id = "l00047" name = "l00047" > < / a > < span class = "lineno" > 47< / span > < / div >
< div class = "line" > < a id = "l00048" name = "l00048" > < / a > < span class = "lineno" > 48< / span > threadgroup T As[gemm_kernel::tgp_mem_size_a];< / div >
< div class = "line" > < a id = "l00049" name = "l00049" > < / a > < span class = "lineno" > 49< / span > threadgroup T Bs[gemm_kernel::tgp_mem_size_b];< / div >
< div class = "line" > < a id = "l00050" name = "l00050" > < / a > < span class = "lineno" > 50< / span > < / div >
< div class = "line" > < a id = "l00051" name = "l00051" > < / a > < span class = "lineno" > 51< / span > < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > tid_x = tid.x;< / div >
< div class = "line" > < a id = "l00052" name = "l00052" > < / a > < span class = "lineno" > 52< / span > < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > tid_y = tid.y;< / div >
< div class = "line" > < a id = "l00053" name = "l00053" > < / a > < span class = "lineno" > 53< / span > < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > tid_z = tid.z;< / div >
< div class = "line" > < a id = "l00054" name = "l00054" > < / a > < span class = "lineno" > 54< / span > < / div >
< div class = "line" > < a id = "l00055" name = "l00055" > < / a > < span class = "lineno" > 55< / span > < span class = "keywordflow" > if< / span > (params-> tiles_n < = tid_x || params-> tiles_m < = tid_y) {< / div >
< div class = "line" > < a id = "l00056" name = "l00056" > < / a > < span class = "lineno" > 56< / span > < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a id = "l00057" name = "l00057" > < / a > < span class = "lineno" > 57< / span > }< / div >
< div class = "line" > < a id = "l00058" name = "l00058" > < / a > < span class = "lineno" > 58< / span > < / div >
< div class = "line" > < a id = "l00059" name = "l00059" > < / a > < span class = "lineno" > 59< / span > < span class = "comment" > // Find block in A, B, C< / span > < / div >
< div class = "line" > < a id = "l00060" name = "l00060" > < / a > < span class = "lineno" > 60< / span > < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > c_row = tid_y * BM;< / div >
< div class = "line" > < a id = "l00061" name = "l00061" > < / a > < span class = "lineno" > 61< / span > < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > c_col = tid_x * BN;< / div >
< div class = "line" > < a id = "l00062" name = "l00062" > < / a > < span class = "lineno" > 62< / span > < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > k_start = params-> split_k_partition_size * tid_z;< / div >
< div class = "line" > < a id = "l00063" name = "l00063" > < / a > < span class = "lineno" > 63< / span > < / div >
< div class = "line" > < a id = "l00064" name = "l00064" > < / a > < span class = "lineno" > 64< / span > < span class = "keyword" > const< / span > < span class = "keywordtype" > size_t< / span > c_row_long = size_t(c_row);< / div >
< div class = "line" > < a id = "l00065" name = "l00065" > < / a > < span class = "lineno" > 65< / span > < span class = "keyword" > const< / span > < span class = "keywordtype" > size_t< / span > c_col_long = size_t(c_col);< / div >
< div class = "line" > < a id = "l00066" name = "l00066" > < / a > < span class = "lineno" > 66< / span > < span class = "keyword" > const< / span > < span class = "keywordtype" > size_t< / span > k_start_long = size_t(k_start);< / div >
< div class = "line" > < a id = "l00067" name = "l00067" > < / a > < span class = "lineno" > 67< / span > < / div >
< div class = "line" > < a id = "l00068" name = "l00068" > < / a > < span class = "lineno" > 68< / span > A += transpose_a ? (c_row_long + k_start_long * params-> lda)< / div >
< div class = "line" > < a id = "l00069" name = "l00069" > < / a > < span class = "lineno" > 69< / span > : (k_start_long + c_row_long * params-> lda);< / div >
< div class = "line" > < a id = "l00070" name = "l00070" > < / a > < span class = "lineno" > 70< / span > B += transpose_b ? (k_start_long + c_col_long * params-> ldb)< / div >
< div class = "line" > < a id = "l00071" name = "l00071" > < / a > < span class = "lineno" > 71< / span > : (c_col_long + k_start_long * params-> ldb);< / div >
< div class = "line" > < a id = "l00072" name = "l00072" > < / a > < span class = "lineno" > 72< / span > C += (size_t(params-> split_k_partition_stride) * tid_z) +< / div >
< div class = "line" > < a id = "l00073" name = "l00073" > < / a > < span class = "lineno" > 73< / span > (c_row_long * params-> ldc + c_col_long);< / 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 > < span class = "comment" > // Prepare threadgroup loading operations< / span > < / div >
< div class = "line" > < a id = "l00076" name = "l00076" > < / a > < span class = "lineno" > 76< / span > thread loader_a_t loader_a(A, params-> lda, As, simd_group_id, simd_lane_id);< / div >
< div class = "line" > < a id = "l00077" name = "l00077" > < / a > < span class = "lineno" > 77< / span > thread loader_b_t loader_b(B, params-> ldb, Bs, simd_group_id, simd_lane_id);< / div >
< div class = "line" > < a id = "l00078" name = "l00078" > < / a > < span class = "lineno" > 78< / span > < / div >
< div class = "line" > < a id = "l00079" name = "l00079" > < / a > < span class = "lineno" > 79< / span > < span class = "comment" > // Prepare threadgroup mma operation< / span > < / div >
< div class = "line" > < a id = "l00080" name = "l00080" > < / a > < span class = "lineno" > 80< / span > thread mma_t mma_op(simd_group_id, simd_lane_id);< / 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 > < span class = "keywordtype" > int< / span > gemm_k_iterations = params-> gemm_k_iterations_aligned;< / div >
< div class = "line" > < a id = "l00083" name = "l00083" > < / a > < span class = "lineno" > 83< / span > < / div >
< div class = "line" > < a id = "l00084" name = "l00084" > < / a > < span class = "lineno" > 84< / span > < span class = "keywordtype" > short< / span > tgp_bm = min(BM, params-> M - c_row);< / div >
< div class = "line" > < a id = "l00085" name = "l00085" > < / a > < span class = "lineno" > 85< / span > < span class = "keywordtype" > short< / span > tgp_bn = min(BN, params-> N - c_col);< / div >
< div class = "line" > < a id = "l00086" name = "l00086" > < / a > < span class = "lineno" > 86< / span > < span class = "keywordtype" > short< / span > leftover_bk = params-> K % BK;< / 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 > < span class = "keywordflow" > if< / span > (MN_aligned || (tgp_bm == BM & & tgp_bn == BN)) {< / div >
< div class = "line" > < a id = "l00089" name = "l00089" > < / a > < span class = "lineno" > 89< / span > gemm_kernel::gemm_loop(< / div >
< div class = "line" > < a id = "l00090" name = "l00090" > < / a > < span class = "lineno" > 90< / span > As,< / div >
< div class = "line" > < a id = "l00091" name = "l00091" > < / a > < span class = "lineno" > 91< / span > Bs,< / div >
< div class = "line" > < a id = "l00092" name = "l00092" > < / a > < span class = "lineno" > 92< / span > gemm_k_iterations,< / div >
< div class = "line" > < a id = "l00093" name = "l00093" > < / a > < span class = "lineno" > 93< / span > loader_a,< / div >
< div class = "line" > < a id = "l00094" name = "l00094" > < / a > < span class = "lineno" > 94< / span > loader_b,< / div >
< div class = "line" > < a id = "l00095" name = "l00095" > < / a > < span class = "lineno" > 95< / span > mma_op,< / div >
< div class = "line" > < a id = "l00096" name = "l00096" > < / a > < span class = "lineno" > 96< / span > tgp_bm,< / div >
< div class = "line" > < a id = "l00097" name = "l00097" > < / a > < span class = "lineno" > 97< / span > tgp_bn,< / div >
< div class = "line" > < a id = "l00098" name = "l00098" > < / a > < span class = "lineno" > 98< / span > leftover_bk,< / div >
< div class = "line" > < a id = "l00099" name = "l00099" > < / a > < span class = "lineno" > 99< / span > < a class = "code hl_struct" href = "structmlx_1_1steel_1_1_loop_alignment.html" > LoopAlignment< true, true, true> < / a > {});< / div >
< div class = "line" > < a id = "l00100" name = "l00100" > < / a > < span class = "lineno" > 100< / span > } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (tgp_bn == BN) {< / div >
< div class = "line" > < a id = "l00101" name = "l00101" > < / a > < span class = "lineno" > 101< / span > gemm_kernel::gemm_loop(< / div >
< div class = "line" > < a id = "l00102" name = "l00102" > < / a > < span class = "lineno" > 102< / span > As,< / div >
< div class = "line" > < a id = "l00103" name = "l00103" > < / a > < span class = "lineno" > 103< / span > Bs,< / div >
< div class = "line" > < a id = "l00104" name = "l00104" > < / a > < span class = "lineno" > 104< / span > gemm_k_iterations,< / div >
< div class = "line" > < a id = "l00105" name = "l00105" > < / a > < span class = "lineno" > 105< / span > loader_a,< / div >
< div class = "line" > < a id = "l00106" name = "l00106" > < / a > < span class = "lineno" > 106< / span > loader_b,< / div >
< div class = "line" > < a id = "l00107" name = "l00107" > < / a > < span class = "lineno" > 107< / span > mma_op,< / div >
< div class = "line" > < a id = "l00108" name = "l00108" > < / a > < span class = "lineno" > 108< / span > tgp_bm,< / div >
< div class = "line" > < a id = "l00109" name = "l00109" > < / a > < span class = "lineno" > 109< / span > tgp_bn,< / div >
< div class = "line" > < a id = "l00110" name = "l00110" > < / a > < span class = "lineno" > 110< / span > leftover_bk,< / div >
< div class = "line" > < a id = "l00111" name = "l00111" > < / a > < span class = "lineno" > 111< / span > < a class = "code hl_struct" href = "structmlx_1_1steel_1_1_loop_alignment.html" > LoopAlignment< false, true, true> < / a > {});< / div >
< div class = "line" > < a id = "l00112" name = "l00112" > < / a > < span class = "lineno" > 112< / span > } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (tgp_bm == BM) {< / div >
< div class = "line" > < a id = "l00113" name = "l00113" > < / a > < span class = "lineno" > 113< / span > gemm_kernel::gemm_loop(< / div >
< div class = "line" > < a id = "l00114" name = "l00114" > < / a > < span class = "lineno" > 114< / span > As,< / div >
< div class = "line" > < a id = "l00115" name = "l00115" > < / a > < span class = "lineno" > 115< / span > Bs,< / div >
< div class = "line" > < a id = "l00116" name = "l00116" > < / a > < span class = "lineno" > 116< / span > gemm_k_iterations,< / div >
< div class = "line" > < a id = "l00117" name = "l00117" > < / a > < span class = "lineno" > 117< / span > loader_a,< / div >
< div class = "line" > < a id = "l00118" name = "l00118" > < / a > < span class = "lineno" > 118< / span > loader_b,< / div >
< div class = "line" > < a id = "l00119" name = "l00119" > < / a > < span class = "lineno" > 119< / span > mma_op,< / div >
< div class = "line" > < a id = "l00120" name = "l00120" > < / a > < span class = "lineno" > 120< / span > tgp_bm,< / div >
< div class = "line" > < a id = "l00121" name = "l00121" > < / a > < span class = "lineno" > 121< / span > tgp_bn,< / div >
< div class = "line" > < a id = "l00122" name = "l00122" > < / a > < span class = "lineno" > 122< / span > leftover_bk,< / div >
< div class = "line" > < a id = "l00123" name = "l00123" > < / a > < span class = "lineno" > 123< / span > < a class = "code hl_struct" href = "structmlx_1_1steel_1_1_loop_alignment.html" > LoopAlignment< true, false, true> < / a > {});< / 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 > gemm_kernel::gemm_loop(< / div >
< div class = "line" > < a id = "l00126" name = "l00126" > < / a > < span class = "lineno" > 126< / span > As,< / div >
< div class = "line" > < a id = "l00127" name = "l00127" > < / a > < span class = "lineno" > 127< / span > Bs,< / div >
< div class = "line" > < a id = "l00128" name = "l00128" > < / a > < span class = "lineno" > 128< / span > gemm_k_iterations,< / div >
< div class = "line" > < a id = "l00129" name = "l00129" > < / a > < span class = "lineno" > 129< / span > loader_a,< / div >
< div class = "line" > < a id = "l00130" name = "l00130" > < / a > < span class = "lineno" > 130< / span > loader_b,< / div >
< div class = "line" > < a id = "l00131" name = "l00131" > < / a > < span class = "lineno" > 131< / span > mma_op,< / div >
< div class = "line" > < a id = "l00132" name = "l00132" > < / a > < span class = "lineno" > 132< / span > tgp_bm,< / div >
< div class = "line" > < a id = "l00133" name = "l00133" > < / a > < span class = "lineno" > 133< / span > tgp_bn,< / div >
< div class = "line" > < a id = "l00134" name = "l00134" > < / a > < span class = "lineno" > 134< / span > leftover_bk,< / div >
< div class = "line" > < a id = "l00135" name = "l00135" > < / a > < span class = "lineno" > 135< / span > < a class = "code hl_struct" href = "structmlx_1_1steel_1_1_loop_alignment.html" > LoopAlignment< false, false, true> < / a > {});< / div >
< div class = "line" > < a id = "l00136" name = "l00136" > < / a > < span class = "lineno" > 136< / span > }< / div >
< div class = "line" > < a id = "l00137" name = "l00137" > < / a > < span class = "lineno" > 137< / span > < / div >
< div class = "line" > < a id = "l00138" name = "l00138" > < / a > < span class = "lineno" > 138< / span > threadgroup_barrier(mem_flags::mem_threadgroup);< / div >
< div class = "line" > < a id = "l00139" name = "l00139" > < / a > < span class = "lineno" > 139< / span > < / div >
< div class = "line" > < a id = "l00140" name = "l00140" > < / a > < span class = "lineno" > 140< / span > < span class = "keywordflow" > if< / span > ((tid_z + 1) == (params-> split_k_partitions)) {< / div >
< div class = "line" > < a id = "l00141" name = "l00141" > < / a > < span class = "lineno" > 141< / span > < span class = "keywordtype" > int< / span > gemm_k_iter_remaining =< / div >
< div class = "line" > < a id = "l00142" name = "l00142" > < / a > < span class = "lineno" > 142< / span > (params-> K - (k_start + params-> split_k_partition_size)) / BK;< / div >
< div class = "line" > < a id = "l00143" name = "l00143" > < / a > < span class = "lineno" > 143< / span > < span class = "keywordflow" > if< / span > (!K_aligned || gemm_k_iter_remaining > 0)< / div >
< div class = "line" > < a id = "l00144" name = "l00144" > < / a > < span class = "lineno" > 144< / span > gemm_kernel::gemm_loop(< / div >
< div class = "line" > < a id = "l00145" name = "l00145" > < / a > < span class = "lineno" > 145< / span > As,< / div >
< div class = "line" > < a id = "l00146" name = "l00146" > < / a > < span class = "lineno" > 146< / span > Bs,< / div >
< div class = "line" > < a id = "l00147" name = "l00147" > < / a > < span class = "lineno" > 147< / span > gemm_k_iter_remaining,< / div >
< div class = "line" > < a id = "l00148" name = "l00148" > < / a > < span class = "lineno" > 148< / span > loader_a,< / div >
< div class = "line" > < a id = "l00149" name = "l00149" > < / a > < span class = "lineno" > 149< / span > loader_b,< / div >
< div class = "line" > < a id = "l00150" name = "l00150" > < / a > < span class = "lineno" > 150< / span > mma_op,< / div >
< div class = "line" > < a id = "l00151" name = "l00151" > < / a > < span class = "lineno" > 151< / span > tgp_bm,< / div >
< div class = "line" > < a id = "l00152" name = "l00152" > < / a > < span class = "lineno" > 152< / span > tgp_bn,< / div >
< div class = "line" > < a id = "l00153" name = "l00153" > < / a > < span class = "lineno" > 153< / span > leftover_bk,< / div >
< div class = "line" > < a id = "l00154" name = "l00154" > < / a > < span class = "lineno" > 154< / span > < a class = "code hl_struct" href = "structmlx_1_1steel_1_1_loop_alignment.html" > LoopAlignment< false, false, K_aligned> < / a > {});< / div >
< div class = "line" > < a id = "l00155" name = "l00155" > < / a > < span class = "lineno" > 155< / span > }< / 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 = "keywordflow" > if< / span > (MN_aligned || (tgp_bm == BM & & tgp_bn == BN)) {< / div >
< div class = "line" > < a id = "l00158" name = "l00158" > < / a > < span class = "lineno" > 158< / span > mma_op.store_result(C, params-> ldc);< / div >
< div class = "line" > < a id = "l00159" name = "l00159" > < / a > < span class = "lineno" > 159< / span > } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a id = "l00160" name = "l00160" > < / a > < span class = "lineno" > 160< / span > mma_op.store_result_safe(C, params-> ldc, short2(tgp_bn, tgp_bm));< / div >
< div class = "line" > < a id = "l00161" name = "l00161" > < / a > < span class = "lineno" > 161< / span > }< / div >
< div class = "line" > < a id = "l00162" name = "l00162" > < / a > < span class = "lineno" > 162< / span > }< / div >
< / div >
2025-01-10 05:56:20 +08:00
< div class = "line" > < a id = "l00163" name = "l00163" > < / a > < span class = "lineno" > 163< / span > < / div >
2024-10-15 23:12:17 +08:00
< div class = "line" > < a id = "l00165" name = "l00165" > < / a > < span class = "lineno" > 165< / span > < span class = "comment" > // Split k accumulation kernel< / span > < / div >
< div class = "line" > < a id = "l00167" name = "l00167" > < / a > < span class = "lineno" > 167< / span > < / div >
< div class = "line" > < a id = "l00168" name = "l00168" > < / a > < span class = "lineno" > 168< / span > < span class = "keyword" > template< / span > < < / div >
< div class = "line" > < a id = "l00169" name = "l00169" > < / a > < span class = "lineno" > 169< / span > < span class = "keyword" > typename< / span > AccT,< / div >
< div class = "line" > < a id = "l00170" name = "l00170" > < / a > < span class = "lineno" > 170< / span > < span class = "keyword" > typename< / span > OutT,< / div >
< div class = "line" > < a id = "l00171" name = "l00171" > < / a > < span class = "lineno" > 171< / span > < span class = "keyword" > typename< / span > Epilogue = < a class = "code hl_struct" href = "structmlx_1_1steel_1_1_transform_none.html" > TransformNone< OutT, AccT> < / a > > < / div >
< div class = "foldopen" id = "foldopen00172" data-start = "{" data-end = "}" >
< div class = "line" > < a id = "l00172" name = "l00172" > < / a > < span class = "lineno" > < a class = "line" href = "steel__gemm__splitk_8h.html#abeb921bf1dc7941125188ddd390b0907" > 172< / a > < / span > [[kernel]] < span class = "keywordtype" > void< / span > < a class = "code hl_function" href = "steel__gemm__splitk_8h.html#abeb921bf1dc7941125188ddd390b0907" > gemm_splitk_accum< / a > (< / div >
< div class = "line" > < a id = "l00173" name = "l00173" > < / a > < span class = "lineno" > 173< / span > < span class = "keyword" > const< / span > device AccT* C_split [[buffer(0)]],< / div >
< div class = "line" > < a id = "l00174" name = "l00174" > < / a > < span class = "lineno" > 174< / span > device OutT* D [[buffer(1)]],< / div >
< div class = "line" > < a id = "l00175" name = "l00175" > < / a > < span class = "lineno" > 175< / span > < span class = "keyword" > const< / span > constant < span class = "keywordtype" > int< / span > & k_partitions [[buffer(2)]],< / div >
< div class = "line" > < a id = "l00176" name = "l00176" > < / a > < span class = "lineno" > 176< / span > < span class = "keyword" > const< / span > constant < span class = "keywordtype" > int< / span > & partition_stride [[buffer(3)]],< / div >
< div class = "line" > < a id = "l00177" name = "l00177" > < / a > < span class = "lineno" > 177< / span > < span class = "keyword" > const< / span > constant < span class = "keywordtype" > int< / span > & ldd [[buffer(4)]],< / div >
< div class = "line" > < a id = "l00178" name = "l00178" > < / a > < span class = "lineno" > 178< / span > uint2 gid [[thread_position_in_grid]]) {< / div >
< div class = "line" > < a id = "l00179" name = "l00179" > < / a > < span class = "lineno" > 179< / span > < span class = "comment" > // Ajust D and C< / span > < / div >
< div class = "line" > < a id = "l00180" name = "l00180" > < / a > < span class = "lineno" > 180< / span > D += gid.x + gid.y * size_t(ldd);< / div >
< div class = "line" > < a id = "l00181" name = "l00181" > < / a > < span class = "lineno" > 181< / span > C_split += gid.x + gid.y * size_t(ldd);< / div >
< div class = "line" > < a id = "l00182" name = "l00182" > < / a > < span class = "lineno" > 182< / span > < / div >
< div class = "line" > < a id = "l00183" name = "l00183" > < / a > < span class = "lineno" > 183< / span > < span class = "keywordtype" > size_t< / span > offset = 0;< / div >
< div class = "line" > < a id = "l00184" name = "l00184" > < / a > < span class = "lineno" > 184< / span > AccT out = 0;< / div >
< div class = "line" > < a id = "l00185" name = "l00185" > < / a > < span class = "lineno" > 185< / span > < / div >
< div class = "line" > < a id = "l00186" name = "l00186" > < / a > < span class = "lineno" > 186< / span > < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < k_partitions; i++) {< / div >
< div class = "line" > < a id = "l00187" name = "l00187" > < / a > < span class = "lineno" > 187< / span > out += C_split[offset];< / div >
< div class = "line" > < a id = "l00188" name = "l00188" > < / a > < span class = "lineno" > 188< / span > offset += partition_stride;< / div >
< div class = "line" > < a id = "l00189" name = "l00189" > < / a > < span class = "lineno" > 189< / span > }< / div >
< div class = "line" > < a id = "l00190" name = "l00190" > < / a > < span class = "lineno" > 190< / span > < / div >
< div class = "line" > < a id = "l00191" name = "l00191" > < / a > < span class = "lineno" > 191< / span > < span class = "comment" > // Write output< / span > < / div >
< div class = "line" > < a id = "l00192" name = "l00192" > < / a > < span class = "lineno" > 192< / span > D[0] = Epilogue::apply(out);< / div >
< div class = "line" > < a id = "l00193" name = "l00193" > < / a > < span class = "lineno" > 193< / span > }< / div >
< / div >
< div class = "line" > < a id = "l00194" name = "l00194" > < / a > < span class = "lineno" > 194< / span > < / div >
< div class = "line" > < a id = "l00195" name = "l00195" > < / a > < span class = "lineno" > 195< / span > < span class = "keyword" > template< / span > < < / div >
< div class = "line" > < a id = "l00196" name = "l00196" > < / a > < span class = "lineno" > 196< / span > < span class = "keyword" > typename< / span > AccT,< / div >
< div class = "line" > < a id = "l00197" name = "l00197" > < / a > < span class = "lineno" > 197< / span > < span class = "keyword" > typename< / span > OutT,< / div >
< div class = "line" > < a id = "l00198" name = "l00198" > < / a > < span class = "lineno" > 198< / span > < span class = "keyword" > typename< / span > Epilogue = < a class = "code hl_struct" href = "structmlx_1_1steel_1_1_transform_axpby.html" > TransformAxpby< OutT, AccT> < / a > > < / div >
< div class = "foldopen" id = "foldopen00199" data-start = "{" data-end = "}" >
< div class = "line" > < a id = "l00199" name = "l00199" > < / a > < span class = "lineno" > < a class = "line" href = "steel__gemm__splitk_8h.html#acc33fdfaaf3eb3a0629b3d52c7043dc1" > 199< / a > < / span > [[kernel]] < span class = "keywordtype" > void< / span > < a class = "code hl_function" href = "steel__gemm__splitk_8h.html#acc33fdfaaf3eb3a0629b3d52c7043dc1" > gemm_splitk_accum_axpby< / a > (< / div >
< div class = "line" > < a id = "l00200" name = "l00200" > < / a > < span class = "lineno" > 200< / span > < span class = "keyword" > const< / span > device AccT* C_split [[buffer(0)]],< / div >
< div class = "line" > < a id = "l00201" name = "l00201" > < / a > < span class = "lineno" > 201< / span > device OutT* D [[buffer(1)]],< / div >
< div class = "line" > < a id = "l00202" name = "l00202" > < / a > < span class = "lineno" > 202< / span > < span class = "keyword" > const< / span > constant < span class = "keywordtype" > int< / span > & k_partitions [[buffer(2)]],< / div >
< div class = "line" > < a id = "l00203" name = "l00203" > < / a > < span class = "lineno" > 203< / span > < span class = "keyword" > const< / span > constant < span class = "keywordtype" > int< / span > & partition_stride [[buffer(3)]],< / div >
< div class = "line" > < a id = "l00204" name = "l00204" > < / a > < span class = "lineno" > 204< / span > < span class = "keyword" > const< / span > constant < span class = "keywordtype" > int< / span > & ldd [[buffer(4)]],< / div >
< div class = "line" > < a id = "l00205" name = "l00205" > < / a > < span class = "lineno" > 205< / span > < span class = "keyword" > const< / span > device OutT* C [[buffer(5)]],< / div >
< div class = "line" > < a id = "l00206" name = "l00206" > < / a > < span class = "lineno" > 206< / span > < span class = "keyword" > const< / span > constant < span class = "keywordtype" > int< / span > & ldc [[buffer(6)]],< / div >
< div class = "line" > < a id = "l00207" name = "l00207" > < / a > < span class = "lineno" > 207< / span > < span class = "keyword" > const< / span > constant < span class = "keywordtype" > int< / span > & fdc [[buffer(7)]],< / div >
< div class = "line" > < a id = "l00208" name = "l00208" > < / a > < span class = "lineno" > 208< / span > < span class = "keyword" > const< / span > constant < span class = "keywordtype" > float< / span > & alpha [[buffer(8)]],< / div >
< div class = "line" > < a id = "l00209" name = "l00209" > < / a > < span class = "lineno" > 209< / span > < span class = "keyword" > const< / span > constant < span class = "keywordtype" > float< / span > & beta [[buffer(9)]],< / div >
< div class = "line" > < a id = "l00210" name = "l00210" > < / a > < span class = "lineno" > 210< / span > uint2 gid [[thread_position_in_grid]]) {< / div >
< div class = "line" > < a id = "l00211" name = "l00211" > < / a > < span class = "lineno" > 211< / span > < span class = "comment" > // Ajust D and C< / span > < / div >
< div class = "line" > < a id = "l00212" name = "l00212" > < / a > < span class = "lineno" > 212< / span > C += gid.x * size_t(fdc) + gid.y * size_t(ldc);< / div >
< div class = "line" > < a id = "l00213" name = "l00213" > < / a > < span class = "lineno" > 213< / span > D += gid.x + gid.y * size_t(ldd);< / div >
< div class = "line" > < a id = "l00214" name = "l00214" > < / a > < span class = "lineno" > 214< / span > C_split += gid.x + gid.y * size_t(ldd);< / div >
< div class = "line" > < a id = "l00215" name = "l00215" > < / a > < span class = "lineno" > 215< / span > < / div >
< div class = "line" > < a id = "l00216" name = "l00216" > < / a > < span class = "lineno" > 216< / span > < span class = "keywordtype" > size_t< / span > offset = 0;< / div >
< div class = "line" > < a id = "l00217" name = "l00217" > < / a > < span class = "lineno" > 217< / span > AccT out = 0;< / div >
< div class = "line" > < a id = "l00218" name = "l00218" > < / a > < span class = "lineno" > 218< / span > < / div >
< div class = "line" > < a id = "l00219" name = "l00219" > < / a > < span class = "lineno" > 219< / span > < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < k_partitions; i++) {< / div >
< div class = "line" > < a id = "l00220" name = "l00220" > < / a > < span class = "lineno" > 220< / span > out += C_split[offset];< / div >
< div class = "line" > < a id = "l00221" name = "l00221" > < / a > < span class = "lineno" > 221< / span > offset += partition_stride;< / div >
< div class = "line" > < a id = "l00222" name = "l00222" > < / a > < span class = "lineno" > 222< / span > }< / div >
< div class = "line" > < a id = "l00223" name = "l00223" > < / a > < span class = "lineno" > 223< / span > < / div >
< div class = "line" > < a id = "l00224" name = "l00224" > < / a > < span class = "lineno" > 224< / span > < span class = "comment" > // Write output< / span > < / div >
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< div class = "line" > < a id = "l00225" name = "l00225" > < / a > < span class = "lineno" > 225< / span > Epilogue op(alpha, beta);< / div >
< div class = "line" > < a id = "l00226" name = "l00226" > < / a > < span class = "lineno" > 226< / span > D[0] = op.apply(out, *C);< / div >
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< div class = "line" > < a id = "l00227" name = "l00227" > < / a > < span class = "lineno" > 227< / span > }< / div >
< / div >
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< div class = "ttc" id = "asteel__gemm__splitk_8h_html_a3be6e095a0a026d3ecf57a3e67f76188" > < div class = "ttname" > < a href = "steel__gemm__splitk_8h.html#a3be6e095a0a026d3ecf57a3e67f76188" > gemm_splitk< / a > < / div > < div class = "ttdeci" > void gemm_splitk(const device T *A, const device T *B, device U *C, const constant GEMMSpiltKParams *params, uint simd_lane_id, uint simd_group_id, uint3 tid, uint3 lid)< / div > < div class = "ttdef" > < b > Definition< / b > steel_gemm_splitk.h:21< / div > < / div >
< div class = "ttc" id = "asteel__gemm__splitk_8h_html_abeb921bf1dc7941125188ddd390b0907" > < div class = "ttname" > < a href = "steel__gemm__splitk_8h.html#abeb921bf1dc7941125188ddd390b0907" > gemm_splitk_accum< / a > < / div > < div class = "ttdeci" > void gemm_splitk_accum(const device AccT *C_split, device OutT *D, const constant int & k_partitions, const constant int & partition_stride, const constant int & ldd, uint2 gid)< / div > < div class = "ttdef" > < b > Definition< / b > steel_gemm_splitk.h:172< / div > < / div >
< div class = "ttc" id = "asteel__gemm__splitk_8h_html_acc33fdfaaf3eb3a0629b3d52c7043dc1" > < div class = "ttname" > < a href = "steel__gemm__splitk_8h.html#acc33fdfaaf3eb3a0629b3d52c7043dc1" > gemm_splitk_accum_axpby< / a > < / div > < div class = "ttdeci" > void gemm_splitk_accum_axpby(const device AccT *C_split, device OutT *D, const constant int & k_partitions, const constant int & partition_stride, const constant int & ldd, const device OutT *C, const constant int & ldc, const constant int & fdc, const constant float & alpha, const constant float & beta, uint2 gid)< / div > < div class = "ttdef" > < b > Definition< / b > steel_gemm_splitk.h:199< / div > < / div >
< div class = "ttc" id = "astructmlx_1_1steel_1_1_g_e_m_m_kernel_html" > < div class = "ttname" > < a href = "structmlx_1_1steel_1_1_g_e_m_m_kernel.html" > mlx::steel::GEMMKernel< / a > < / div > < div class = "ttdef" > < b > Definition< / b > gemm.h:37< / div > < / div >
< div class = "ttc" id = "astructmlx_1_1steel_1_1_g_e_m_m_spilt_k_params_html" > < div class = "ttname" > < a href = "structmlx_1_1steel_1_1_g_e_m_m_spilt_k_params.html" > mlx::steel::GEMMSpiltKParams< / a > < / div > < div class = "ttdef" > < b > Definition< / b > params.h:34< / div > < / div >
< div class = "ttc" id = "astructmlx_1_1steel_1_1_loop_alignment_html" > < div class = "ttname" > < a href = "structmlx_1_1steel_1_1_loop_alignment.html" > mlx::steel::LoopAlignment< / a > < / div > < div class = "ttdef" > < b > Definition< / b > gemm.h:21< / div > < / div >
< div class = "ttc" id = "astructmlx_1_1steel_1_1_transform_axpby_html" > < div class = "ttname" > < a href = "structmlx_1_1steel_1_1_transform_axpby.html" > mlx::steel::TransformAxpby< / a > < / div > < div class = "ttdef" > < b > Definition< / b > transforms.h:39< / div > < / div >
< div class = "ttc" id = "astructmlx_1_1steel_1_1_transform_none_html" > < div class = "ttname" > < a href = "structmlx_1_1steel_1_1_transform_none.html" > mlx::steel::TransformNone< / a > < / div > < div class = "ttdef" > < b > Definition< / b > transforms.h:15< / div > < / div >
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