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/***************************************************************************************************
* Copyright (c) 2017-2018, NVIDIA CORPORATION. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted
* provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
* * Neither the name of the NVIDIA CORPORATION nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TOR (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
**************************************************************************************************/
/*! \file
\brief Type traits for common CUDA types
*/
#pragma once
#include <cuda_fp16.h>
#include <stdint.h>
#include "half.h"
namespace cutlass {
struct half_t;
template <typename T>
struct TypeTraits;
template <>
struct TypeTraits<int8_t> {
// static cudaDataType_t const cublas_type = CUDA_R_8I;
typedef int8_t host_type;
typedef int8_t device_type;
typedef int8_t integer_type;
typedef uint8_t unsigned_type;
static inline int8_t remove_negative_zero(int8_t x) { return x; }
static inline int to_print(int8_t x) { return (int)x; }
};
template <>
struct TypeTraits<uint8_t> {
// static cudaDataType_t const cublas_type = CUDA_R_8I;
typedef uint8_t host_type;
typedef uint8_t device_type;
typedef uint8_t integer_type;
typedef uint8_t unsigned_type;
static inline uint8_t remove_negative_zero(uint8_t x) { return x; }
static inline uint32_t to_print(uint8_t x) { return (uint32_t)x; }
};
template <>
struct TypeTraits<int> {
// static cudaDataType_t const cublas_type = CUDA_R_32I;
typedef int host_type;
typedef int device_type;
typedef int32_t integer_type;
typedef uint32_t unsigned_type;
static inline int32_t remove_negative_zero(int32_t x) { return x; }
static inline int to_print(int x) { return x; }
};
template <>
struct TypeTraits<unsigned> {
// static cudaDataType_t const cublas_type = CUDA_R_32I;
typedef unsigned host_type;
typedef unsigned device_type;
typedef uint32_t integer_type;
typedef uint32_t unsigned_type;
static inline uint32_t remove_negative_zero(uint32_t x) { return x; }
static inline uint32_t to_print(uint32_t x) { return x; }
};
template <>
struct TypeTraits<half> {
// static cudaDataType_t const cublas_type = CUDA_R_16F;
typedef half_t host_type;
typedef half device_type;
typedef int16_t integer_type;
typedef uint16_t unsigned_type;
static inline half remove_negative_zero(half x) {
integer_type h_int = reinterpret_cast<integer_type const&>(x);
if (h_int == 0x8000) {
h_int = 0;
}
x = reinterpret_cast<half const&>(h_int);
return x;
}
static inline half to_print(half x) { return x; }
};
template <>
struct TypeTraits<int64_t> {
// static cudaDataType_t const cublas_type = CUDA_R_8I;
typedef int64_t host_type;
typedef int64_t device_type;
typedef int64_t integer_type;
typedef uint64_t unsigned_type;
static inline int64_t remove_negative_zero(int64_t x) { return x; }
static inline int64_t to_print(int64_t x) { return x; }
};
template <>
struct TypeTraits<uint64_t> {
// static cudaDataType_t const cublas_type = CUDA_R_8I;
typedef uint64_t host_type;
typedef uint64_t device_type;
typedef uint64_t integer_type;
typedef uint64_t unsigned_type;
static inline uint64_t remove_negative_zero(uint64_t x) { return x; }
static inline uint64_t to_print(uint64_t x) { return x; }
};
template <>
struct TypeTraits<cutlass::half_t> {
// static cudaDataType_t const cublas_type = CUDA_R_16F;
typedef half_t host_type;
typedef half device_type;
typedef int16_t integer_type;
typedef uint16_t unsigned_type;
static inline half_t remove_negative_zero(half_t x) {
return (x.raw() == 0x8000 ? half_t::bitcast(0) : x);
}
static inline half_t to_print(half_t x) { return x; }
};
template <>
struct TypeTraits<float> {
// static cudaDataType_t const cublas_type = CUDA_R_32F;
typedef float host_type;
typedef float device_type;
typedef int32_t integer_type;
typedef uint32_t unsigned_type;
static inline float remove_negative_zero(float x) { return x == -0.f ? 0.f : x; }
static inline float to_print(float x) { return x; }
};
template <>
struct TypeTraits<double> {
// static cudaDataType_t const cublas_type = CUDA_R_64F;
typedef double host_type;
typedef double device_type;
typedef int64_t integer_type;
typedef uint64_t unsigned_type;
static inline double remove_negative_zero(double x) { return x == -0.0 ? 0.0 : x; }
static inline double to_print(double x) { return x; }
};
} // namespace cutlass
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