mlx/mlx/backend/metal/kernels/reduce.metal
2025-08-12 00:05:33 -07:00

170 lines
9.3 KiB
Metal

// Copyright © 2024 Apple Inc.
#include <metal_atomic>
#include <metal_simdgroup>
// clang-format off
#include "mlx/backend/metal/kernels/defines.h"
#include "mlx/backend/metal/kernels/utils.h"
#include "mlx/backend/metal/kernels/atomic.h"
#include "mlx/backend/metal/kernels/reduction/ops.h"
#include "mlx/backend/metal/kernels/reduce.h"
#define instantiate_init_reduce(name, tname, type, op) \
instantiate_kernel("init_reduce_" #name #tname, init_reduce, type, op<type>)
instantiate_init_reduce(and, bool_, bool, And)
instantiate_init_reduce(or, bool_, bool, Or)
#define instantiate_init_sum_prod(name, op) \
instantiate_init_reduce(name, int32, int32_t, op) \
instantiate_init_reduce(name, int64, int64_t, op) \
instantiate_init_reduce(name, float16, float16_t, op) \
instantiate_init_reduce(name, bfloat16, bfloat16_t, op) \
instantiate_init_reduce(name, float32, float, op) \
instantiate_init_reduce(name, complex64, complex64_t, op)
instantiate_init_sum_prod(sum, Sum)
instantiate_init_sum_prod(prod, Prod)
#define instantiate_init_min_max(name, op) \
instantiate_init_reduce(name, bool_, bool, op) \
instantiate_init_reduce(name, int8, int8_t, op) \
instantiate_init_reduce(name, int16, int16_t, op) \
instantiate_init_reduce(name, int32, int32_t, op) \
instantiate_init_reduce(name, int64, int64_t, op) \
instantiate_init_reduce(name, uint8, uint8_t, op) \
instantiate_init_reduce(name, uint16, uint16_t, op) \
instantiate_init_reduce(name, uint32, uint32_t, op) \
instantiate_init_reduce(name, uint64, uint64_t, op) \
instantiate_init_reduce(name, float16, float16_t, op) \
instantiate_init_reduce(name, bfloat16, bfloat16_t, op) \
instantiate_init_reduce(name, float32, float, op) \
instantiate_init_reduce(name, complex64, complex64_t, op)
instantiate_init_min_max(min, Min)
instantiate_init_min_max(max, Max)
#define instantiate_all_reduce(name, itype, otype, op) \
instantiate_kernel("all_reduce_" #name, \
all_reduce, \
itype, otype, op)
#define instantiate_col_reduce_small(name, itype, otype, op, dim) \
instantiate_kernel("col_reduce_small_" #dim "_reduce_" #name, \
col_reduce_small, \
itype, otype, op, int, dim) \
instantiate_kernel("col_reduce_longcolumn_" #dim "_reduce_" #name, \
col_reduce_longcolumn, \
itype, otype, op, int, dim) \
instantiate_kernel("col_reduce_small_large_" #dim "_reduce_" #name, \
col_reduce_small, \
itype, otype, op, int64_t, dim) \
instantiate_kernel("col_reduce_longcolumn_large_" #dim "_reduce_" #name, \
col_reduce_longcolumn, \
itype, otype, op, int64_t, dim)
#define instantiate_col_reduce_looped_tile(name, itype, otype, op, dim, bm, bn) \
instantiate_kernel("col_reduce_looped_" #dim "_" #bm "_" #bn "_reduce_" #name, \
col_reduce_looped, \
itype, otype, op, int, dim, bm, bn) \
instantiate_kernel("col_reduce_looped_large_" #dim "_" #bm "_" #bn "_reduce_" #name, \
col_reduce_looped, \
itype, otype, op, int64_t, dim, bm, bn)
#define instantiate_col_reduce_2pass_tile(name, itype, otype, op, dim, bm, bn) \
instantiate_kernel("col_reduce_2pass_" #dim "_" #bm "_" #bn "_reduce_" #name, \
col_reduce_2pass, \
itype, otype, op, int, dim, bm, bn) \
instantiate_kernel("col_reduce_2pass_large_" #dim "_" #bm "_" #bn "_reduce_" #name, \
col_reduce_2pass, \
itype, otype, op, int64_t, dim, bm, bn)
#define instantiate_col_reduce_looped(name, itype, otype, op, dim) \
instantiate_col_reduce_looped_tile(name, itype, otype, op, dim, 32, 32) \
instantiate_col_reduce_2pass_tile(name, itype, otype, op, dim, 32, 32)
#define instantiate_col_reduce_general(name, itype, otype, op) \
instantiate_col_reduce_small(name, itype, otype, op, 1) \
instantiate_col_reduce_small(name, itype, otype, op, 2) \
instantiate_col_reduce_small(name, itype, otype, op, 5) \
instantiate_col_reduce_looped(name, itype, otype, op, 1) \
instantiate_col_reduce_looped(name, itype, otype, op, 2) \
instantiate_col_reduce_looped(name, itype, otype, op, 5)
#define instantiate_row_reduce_small(name, itype, otype, op, dim) \
instantiate_kernel("row_reduce_small_" #dim "_reduce_" #name, \
row_reduce_small, \
itype, otype, op, int, dim) \
instantiate_kernel("row_reduce_small_large_" #dim "_reduce_" #name, \
row_reduce_small, \
itype, otype, op, int64_t, dim)
#define instantiate_row_reduce_looped(name, itype, otype, op, dim) \
instantiate_kernel("row_reduce_looped_" #dim "_reduce_" #name, \
row_reduce_looped, \
itype, otype, op, int, dim) \
instantiate_kernel("row_reduce_looped_large_" #dim "_reduce_" #name, \
row_reduce_looped, \
itype, otype, op, int64_t, dim)
#define instantiate_row_reduce_general(name, itype, otype, op) \
instantiate_row_reduce_small(name, itype, otype, op, 1) \
instantiate_row_reduce_small(name, itype, otype, op, 2) \
instantiate_row_reduce_small(name, itype, otype, op, 5) \
instantiate_row_reduce_looped(name, itype, otype, op, 1) \
instantiate_row_reduce_looped(name, itype, otype, op, 2) \
instantiate_row_reduce_looped(name, itype, otype, op, 5) \
instantiate_kernel("row_reduce_simple_" #name, \
row_reduce_simple, \
itype, otype, op)
#define instantiate_reduce_functions(name, tname, itype, otype, op) \
instantiate_all_reduce(name##tname, itype, otype, op<otype>) \
instantiate_row_reduce_general(name##tname, itype, otype, op<otype>) \
instantiate_col_reduce_general(name##tname, itype, otype, op<otype>)
#define instantiate_and_or(name, op) \
instantiate_reduce_functions(name, bool_, bool, bool, op) \
instantiate_reduce_functions(name, int16, int16_t, bool, op) \
instantiate_reduce_functions(name, int32, int32_t, bool, op) \
instantiate_reduce_functions(name, int64, int64_t, bool, op)
instantiate_and_or(and, And)
instantiate_and_or(or, Or)
#define instantiate_sum_prod(name, op) \
instantiate_reduce_functions(name, uint8, uint8_t, int32_t, op) \
instantiate_reduce_functions(name, uint16, uint16_t, uint32_t, op) \
instantiate_reduce_functions(name, uint32, uint32_t, uint32_t, op) \
instantiate_reduce_functions(name, uint64, uint64_t, uint64_t, op) \
instantiate_reduce_functions(name, int8, int8_t, int32_t, op) \
instantiate_reduce_functions(name, int16, int16_t, int32_t, op) \
instantiate_reduce_functions(name, int32, int32_t, int32_t, op) \
instantiate_reduce_functions(name, int64, int64_t, int64_t, op) \
instantiate_reduce_functions(name, float16, float16_t, float16_t, op) \
instantiate_reduce_functions(name, bfloat16, bfloat16_t, bfloat16_t, op) \
instantiate_reduce_functions(name, float32, float, float, op) \
instantiate_reduce_functions(name, complex64, complex64_t, complex64_t, op)
instantiate_sum_prod(sum, Sum)
instantiate_sum_prod(prod, Prod)
#define instantiate_min_max(name, op) \
instantiate_reduce_functions(name, int8, int8_t, int8_t, op) \
instantiate_reduce_functions(name, int16, int16_t, int16_t, op) \
instantiate_reduce_functions(name, int32, int32_t, int32_t, op) \
instantiate_reduce_functions(name, int64, int64_t, int64_t, op) \
instantiate_reduce_functions(name, uint8, uint8_t, uint8_t, op) \
instantiate_reduce_functions(name, uint16, uint16_t, uint16_t, op) \
instantiate_reduce_functions(name, uint32, uint32_t, uint32_t, op) \
instantiate_reduce_functions(name, uint64, uint64_t, uint64_t, op) \
instantiate_reduce_functions(name, float16, float16_t, float16_t, op) \
instantiate_reduce_functions(name, bfloat16, bfloat16_t, bfloat16_t, op) \
instantiate_reduce_functions(name, float32, float, float, op) \
instantiate_reduce_functions(name, complex64, complex64_t, complex64_t, op)
instantiate_min_max(min, Min)
instantiate_min_max(max, Max)
// clang-format on