Files
composable_kernel/include/ck/utility/math_v2.hpp
Bartłomiej Kocot 82f3a835d5 Extend available elementwise operations with conv examples (#995)
* Extend available elementwise operations with conv examples

* Fixes

* Remove not needed convert

* Update CMakeFile and dir name
2023-10-19 17:23:19 +02:00

371 lines
6.9 KiB
C++

// SPDX-License-Identifier: MIT
// Copyright (c) 2018-2023, Advanced Micro Devices, Inc. All rights reserved.
#pragma once
#ifndef __HIP_DEVICE_COMPILE__
#include <cmath>
#endif
#include "ck/utility/data_type.hpp"
#include "ck/utility/type.hpp"
#include "ck/utility/type_convert.hpp"
namespace ck {
namespace math {
// math functions for the host, some are implemented by calling C++ std functions
static inline __host__ float abs(float x) { return std::abs(x); };
static inline __host__ double abs(double x) { return std::abs(x); };
static inline __host__ int8_t abs(int8_t x)
{
int8_t sgn = x >> (8 - 1);
return (x ^ sgn) - sgn;
};
static inline __host__ int32_t abs(int32_t x)
{
int32_t sgn = x >> (32 - 1);
return (x ^ sgn) - sgn;
};
static inline __host__ half_t abs(half_t x)
{
uint16_t xx = ck::bit_cast<uint16_t>(x);
uint16_t abs_xx = xx & 0x7fff;
half_t abs_x = ck::bit_cast<half_t>(abs_xx);
return abs_x;
};
#ifdef CK_EXPERIMENTAL_BIT_INT_EXTENSION_INT4
static inline __host__ int4_t abs(int4_t x)
{
int4_t sgn = x >> (4 - 1);
return (x ^ sgn) - sgn;
}
#endif
static inline __host__ bool isnan(float x) { return std::isnan(x); };
static inline __host__ bool isnan(double x) { return std::isnan(x); };
static inline __host__ bool isnan(int8_t x)
{
(void)x;
return false;
};
static inline __host__ bool isnan(int32_t x)
{
(void)x;
return false;
};
static inline __host__ bool isnan(half_t x)
{
uint16_t xx = ck::bit_cast<uint16_t>(x);
return (xx & 0x7FFF) > 0x7C00;
};
#ifdef CK_EXPERIMENTAL_BIT_INT_EXTENSION_INT4
static inline __host__ bool isnan(int4_t x)
{
(void)x;
return false;
};
#endif
static inline __host__ half_t sqrt(half_t x)
{
return static_cast<half_t>(std::sqrt(static_cast<float>(x)));
};
static inline __host__ float sqrt(float x) { return std::sqrt(x); };
static inline __host__ double sqrt(double x) { return std::sqrt(x); };
template <typename T>
inline __host__ T tanh(T x)
{
return ck::type_convert<T>(std::tanhf(ck::type_convert<float>(x)));
};
template <>
inline __host__ float tanh<float>(float x)
{
return std::tanhf(x);
};
template <>
inline __host__ double tanh<double>(double x)
{
return std::tanh(x);
};
template <typename T>
inline __host__ T exp(T x)
{
return ck::type_convert<T>(std::expf(ck::type_convert<float>(x)));
}
template <>
inline __host__ float exp<float>(float x)
{
return std::expf(x);
}
template <>
inline __host__ double exp<double>(double x)
{
return std::exp(x);
}
template <typename T>
inline __host__ T log(T x)
{
return ck::type_convert<T>(std::logf(ck::type_convert<float>(x)));
}
template <>
inline __host__ float log<float>(float x)
{
return std::logf(x);
}
template <>
inline __host__ double log<double>(double x)
{
return std::log(x);
}
template <typename T>
inline __host__ T pow(T x, T gamma)
{
return ck::type_convert<T>(
std::powf(ck::type_convert<float>(x), ck::type_convert<float>(gamma)));
}
template <>
inline __host__ float pow<float>(float x, float gamma)
{
return std::powf(x, gamma);
}
template <>
inline __host__ double pow<double>(double x, double gamma)
{
return std::pow(x, gamma);
}
template <typename T>
inline __host__ T expm1(T x)
{
return ck::type_convert<T>(std::expm1f(ck::type_convert<float>(x)));
}
template <>
inline __host__ float expm1<float>(float x)
{
return std::expm1f(x);
}
template <>
inline __host__ double expm1<double>(double x)
{
return std::expm1(x);
}
// math functions for the HIP kernel, some are implemented by calling hip builtin functions
static inline __device__ float abs(float x) { return ::abs(x); };
static inline __device__ double abs(double x) { return ::abs(x); };
static inline __device__ int8_t abs(int8_t x)
{
int8_t sgn = x >> (8 - 1);
return (x ^ sgn) - sgn;
};
static inline __device__ int32_t abs(int32_t x)
{
int32_t sgn = x >> (32 - 1);
return (x ^ sgn) - sgn;
};
#ifdef CK_EXPERIMENTAL_BIT_INT_EXTENSION_INT4
static inline __device__ int4_t abs(int4_t x)
{
int4_t sgn = x >> (4 - 1);
return (x ^ sgn) - sgn;
};
#endif
static inline __device__ half_t abs(half_t x)
{
uint16_t xx = ck::bit_cast<uint16_t>(x);
uint16_t abs_xx = xx & 0x7fff;
half_t abs_x = ck::bit_cast<half_t>(abs_xx);
return abs_x;
};
static inline __device__ bool isnan(float x) { return ::isnan(x); };
static inline __device__ bool isnan(double x) { return ::isnan(x); };
static inline __device__ bool isnan(int8_t x)
{
(void)x;
return false;
};
static inline __device__ bool isnan(int32_t x)
{
(void)x;
return false;
};
#ifdef CK_EXPERIMENTAL_BIT_INT_EXTENSION_INT4
static inline __device__ bool isnan(int4_t x)
{
(void)x;
return false;
};
#endif
static inline __device__ bool isnan(half_t x)
{
uint16_t xx = ck::bit_cast<uint16_t>(x);
return (xx & 0x7FFF) > 0x7C00;
};
static inline __device__ half_t sqrt(half_t x)
{
return static_cast<half_t>(__builtin_amdgcn_sqrtf(static_cast<float>(x)));
};
static inline __device__ float sqrt(float x) { return __builtin_amdgcn_sqrtf(x); };
static inline __device__ double sqrt(double x) { return __builtin_amdgcn_sqrt(x); };
template <typename T>
inline __device__ T tanh(T x)
{
return ck::type_convert<T>(::tanhf(ck::type_convert<float>(x)));
};
template <>
inline __device__ float tanh<float>(float x)
{
return ::tanhf(x);
};
template <>
inline __device__ double tanh<double>(double x)
{
return ::tanh(x);
};
template <typename T>
inline __device__ T exp(T x)
{
return ck::type_convert<T>(__expf(ck::type_convert<float>(x)));
};
template <>
inline __device__ half_t exp<half_t>(half_t x)
{
return hexp(x);
};
template <>
inline __device__ float exp<float>(float x)
{
return __expf(x);
};
template <>
inline __device__ double exp<double>(double x)
{
return exp(x);
};
template <typename T>
inline __device__ T log(T x)
{
return ck::type_convert<T>(__logf(ck::type_convert<float>(x)));
};
template <>
inline __device__ half_t log<half_t>(half_t x)
{
return hlog(x);
};
template <>
inline __device__ float log<float>(float x)
{
return __logf(x);
};
template <>
inline __device__ double log<double>(double x)
{
return log(x);
};
template <typename T>
inline __device__ T pow(T x, T gamma)
{
return ck::type_convert<T>(powf(ck::type_convert<float>(x), ck::type_convert<float>(gamma)));
};
template <>
inline __device__ float pow<float>(float x, float gamma)
{
return powf(x, gamma);
};
template <>
inline __device__ double pow<double>(double x, double gamma)
{
return pow(x, gamma);
};
template <typename T>
inline __device__ T expm1(T x)
{
return ck::type_convert<T>(expm1f(ck::type_convert<float>(x)));
};
template <>
inline __device__ float expm1<float>(float x)
{
return expm1f(x);
};
template <>
inline __device__ double expm1<double>(double x)
{
return expm1(x);
};
} // namespace math
} // namespace ck