Skip to content

GitLab

Switch branch/tag
Find file Normal viewHistoryPermalink
amd_dlop.hpp 4.93 KB
Newer Older
Chao Liu's avatar
DL GEMM fp32/fp16/int8 (#41)  
Chao Liu committed
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146 
#ifndef CK_AMD_DLOP_HPP
#define CK_AMD_DLOP_HPP

#include "float_type.hpp"

namespace ck {

template <typename TA, typename TB, typename TC>
__device__ void amd_inner_product_dlop(const TA& a, const TB& b, TC& c);

template <>
__device__ void
amd_inner_product_dlop<float, float, float>(const float& a, const float& b, float& c)
{
#if CK_USE_AMD_DLOP_INLINE_ASM
    asm volatile("\n \
            v_fmac_f32 %0, %1, %2 \n \
            "
                 : "=v"(c)
                 : "v"(a), "v"(b), "0"(c));
#else
    c += a * b;
#endif
}

#if CK_USE_AMD_DLOP
template <>
__device__ void
amd_inner_product_dlop<half2_t, half2_t, float>(const half2_t& a, const half2_t& b, float& c)
{
#if CK_USE_AMD_DLOP_INLINE_ASM
    asm volatile("\n \
            v_dot2_f32_f16 %0, %1, %2, %0\n \
            "
                 : "=v"(c)
                 : "v"(a), "v"(b), "0"(c));
#else
    c = __builtin_amdgcn_sdot2(a, b, c, false);
#endif
}

template <>
__device__ void
amd_inner_product_dlop<half4_t, half4_t, float>(const half4_t& a, const half4_t& b, float& c)
{
    constexpr auto I0 = Number<0>{};
    constexpr auto I1 = Number<1>{};

    amd_inner_product_dlop(vector_type<half_t, 4>{a}.AsType<half2_t>()[I0],
                           vector_type<half_t, 4>{b}.AsType<half2_t>()[I0],
                           c);

    amd_inner_product_dlop(vector_type<half_t, 4>{a}.AsType<half2_t>()[I1],
                           vector_type<half_t, 4>{b}.AsType<half2_t>()[I1],
                           c);
}

template <>
__device__ void
amd_inner_product_dlop<half8_t, half8_t, float>(const half8_t& a, const half8_t& b, float& c)
{
    constexpr auto I0 = Number<0>{};
    constexpr auto I1 = Number<1>{};
    constexpr auto I2 = Number<2>{};
    constexpr auto I3 = Number<3>{};

    amd_inner_product_dlop(vector_type<half_t, 8>{a}.AsType<half2_t>()[I0],
                           vector_type<half_t, 8>{b}.AsType<half2_t>()[I0],
                           c);

    amd_inner_product_dlop(vector_type<half_t, 8>{a}.AsType<half2_t>()[I1],
                           vector_type<half_t, 8>{b}.AsType<half2_t>()[I1],
                           c);

    amd_inner_product_dlop(vector_type<half_t, 8>{a}.AsType<half2_t>()[I2],
                           vector_type<half_t, 8>{b}.AsType<half2_t>()[I2],
                           c);

    amd_inner_product_dlop(vector_type<half_t, 8>{a}.AsType<half2_t>()[I3],
                           vector_type<half_t, 8>{b}.AsType<half2_t>()[I3],
                           c);
}

template <>
__device__ void amd_inner_product_dlop<int8x4_t, int8x4_t, int32_t>(const int8x4_t& a,
                                                                    const int8x4_t& b,
                                                                    int32_t& c)
{
#if CK_USE_AMD_DLOP_INLINE_ASM
    asm volatile("\n \
            v_dot4_i32_i8 %0, %1, %2, %0\n \
            "
                 : "=v"(c)
                 : "v"(as_type<int32_t>(a)), "v"(as_type<int32_t>(b)), "0"(c));
#else
    c = __builtin_amdgcn_sdot4(as_type<int32_t>(a), as_type<int32_t>(b), c, false);
#endif
}

template <>
__device__ void amd_inner_product_dlop<int8x8_t, int8x8_t, int32_t>(const int8x8_t& a,
                                                                    const int8x8_t& b,
                                                                    int32_t& c)
{
    constexpr auto I0 = Number<0>{};
    constexpr auto I1 = Number<1>{};

    amd_inner_product_dlop(vector_type<int8_t, 8>{a}.AsType<int8x4_t>()[I0],
                           vector_type<int8_t, 8>{b}.AsType<int8x4_t>()[I0],
                           c);

    amd_inner_product_dlop(vector_type<int8_t, 8>{a}.AsType<int8x4_t>()[I1],
                           vector_type<int8_t, 8>{b}.AsType<int8x4_t>()[I1],
                           c);
}

template <>
__device__ void amd_inner_product_dlop<int8x16_t, int8x16_t, int32_t>(const int8x16_t& a,
                                                                      const int8x16_t& b,
                                                                      int32_t& c)
{
    constexpr auto I0 = Number<0>{};
    constexpr auto I1 = Number<1>{};
    constexpr auto I2 = Number<2>{};
    constexpr auto I3 = Number<3>{};

    amd_inner_product_dlop(vector_type<int8_t, 16>{a}.AsType<int8x4_t>()[I0],
                           vector_type<int8_t, 16>{b}.AsType<int8x4_t>()[I0],
                           c);

    amd_inner_product_dlop(vector_type<int8_t, 16>{a}.AsType<int8x4_t>()[I1],
                           vector_type<int8_t, 16>{b}.AsType<int8x4_t>()[I1],
                           c);

    amd_inner_product_dlop(vector_type<int8_t, 16>{a}.AsType<int8x4_t>()[I2],
                           vector_type<int8_t, 16>{b}.AsType<int8x4_t>()[I2],
                           c);

    amd_inner_product_dlop(vector_type<int8_t, 16>{a}.AsType<int8x4_t>()[I3],
                           vector_type<int8_t, 16>{b}.AsType<int8x4_t>()[I3],
                           c);
}
#endif // CK_USE_AMD_DLOP

} // namespace ck
#endif