// Copyright (c) Microsoft Corporation.
// SPDX-License-Identifier: Apache-2.0

// DeepSpeed Team

/*
Copyright 2020 The Microsoft DeepSpeed Team
Licensed under the MIT license.

Functionality for swapping optimizer tensors to/from (NVMe) storage devices.
*/

#if (__x86_64__ || __i386__)
#include <cpuid.h>
#include <x86intrin.h>
#endif

#include <deepspeed_aio_common.h>
#include <stdlib.h>
#include <torch/extension.h>

#define TILE (1024 * 1024 * 1024)

#if defined(__AVX512__)
#define SIMD_STORE(a, d) _mm512_storeu_ps(a, d)
#define SIMD_LOAD(x) _mm512_loadu_ps(x)
#define SIMD_SET(x) _mm512_set1_ps(x)
#define SIMD_MUL(x, y) _mm512_mul_ps(x, y)
#define SIMD_FMA(x, y, c) _mm512_fmadd_ps(x, y, c)
#define SIMD_SQRT(x) _mm512_sqrt_ps(x)
#define SIMD_DIV(x, y) _mm512_div_ps(x, y)
#define SIMD_WIDTH 16
#else
#if defined(__AVX256__)
#define SIMD_STORE(a, d) _mm256_storeu_ps(a, d)
#define SIMD_LOAD(x) _mm256_loadu_ps(x)
#define SIMD_SET(x) _mm256_set1_ps(x)
#define SIMD_MUL(x, y) _mm256_mul_ps(x, y)
#define SIMD_FMA(x, y, c) _mm256_fmadd_ps(x, y, c)
#define SIMD_SQRT(x) _mm256_sqrt_ps(x)
#define SIMD_DIV(x, y) _mm256_div_ps(x, y)
#define SIMD_WIDTH 8
#endif
#endif

int deepspeed_py_memcpy(torch::Tensor& dest, const torch::Tensor& src);