inner_product.h
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#pragma once
#include "cutlass/cutlass.h"
#include "cutlass/array.h"
namespace cutlass {
namespace reference {
namespace detail {
#pragma hd_warning_disable // Suppresses warnings when attempting to instantiate with a
// host-only type
template <typename Atype, typename Btype, typename Ctype>
CUTLASS_HOST_DEVICE
Ctype inner_product(Atype a, Btype b, Ctype c) {
return Ctype(a) * Ctype(b) + c;
}
template <>
CUTLASS_HOST_DEVICE
int inner_product<Array<bin1_t, 32>, Array<bin1_t, 32>, int>(
Array<bin1_t, 32> a,
Array<bin1_t, 32> b,
int c) {
int accum = 0;
for (int bit = 0; bit < 32; bit++) {
accum += a[bit] ^ b[bit];
}
return accum + c;
}
/*
template <>
CUTLASS_HOST_DEVICE
int inner_product<Array<int4b_t, 8>, Array<int4b_t, 8>, int>(
Array<int4b_t, 8> a,
Array<int4b_t, 8> b,
int c) {
int accum = 0;
for (int k = 0; k < 8; k++) {
accum += a[k] * b[k];
}
return accum + c;
}
template <>
CUTLASS_HOST_DEVICE
int inner_product<Array<uint4b_t, 8>, Array<uint4b_t, 8>, int>(
Array<uint4b_t, 8> a,
Array<uint4b_t, 8> b,
int c) {
int accum = 0;
for (int k = 0; k < 8; k++) {
accum += a[k] * b[k];
}
return accum + c;
}
*/
template <typename SrcType, typename DstType>
struct Cast {
// Default behavior: convert to the destination type
#pragma hd_warning_disable // Suppresses warnings when attempting to instantiate complex<T> with a
// host-only type
CUTLASS_HOST_DEVICE
static DstType apply(SrcType src) { return static_cast<DstType>(src); };
};
template <>
struct Cast<float, int8_t> {
CUTLASS_HOST_DEVICE
static int8_t apply(float src) {
// Clamp to the range of signed 8-bit integers.
return static_cast<int8_t>(fmaxf(-128.f, fminf(127.f, src)));
};
};
template <>
struct Cast<float, uint8_t> {
CUTLASS_HOST_DEVICE
static uint8_t apply(float src) {
// Clamp to the range of signed 8-bit integers.
return static_cast<uint8_t>(fmaxf(0.f, fminf(255.f, src)));
};
};
} // namespace detail
} // namespace reference
} // namespace cutlass
cutlass
Definition: aligned_buffer.h:35
cutlass::reference::detail::Cast::apply
static CUTLASS_HOST_DEVICE DstType apply(SrcType src)
Definition: inner_product.h:103
cutlass::reference::detail::inner_product
CUTLASS_HOST_DEVICE Ctype inner_product(Atype a, Btype b, Ctype c)
Template function to compute an inner product.
Definition: inner_product.h:44
array.h
Statically sized array of elements that accommodates all CUTLASS-supported numeric types and is safe ...
CUTLASS_HOST_DEVICE
#define CUTLASS_HOST_DEVICE
Definition: cutlass.h:89
cutlass::reference::detail::Cast< float, uint8_t >::apply
static CUTLASS_HOST_DEVICE uint8_t apply(float src)
Definition: inner_product.h:118
cutlass::reference::detail::Cast
Definition: inner_product.h:98
cutlass.h
Basic include for CUTLASS.
cutlass::reference::detail::Cast< float, int8_t >::apply
static CUTLASS_HOST_DEVICE int8_t apply(float src)
Definition: inner_product.h:109