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/* ************************************************************************
* Copyright (C) 2018-2022 Advanced Micro Devices, Inc. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell cop-
* ies of the Software, and to permit persons to whom the Software is furnished
* to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IM-
* PLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNE-
* CTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*
* ************************************************************************ */
#pragma once
#include "hipsolver.h"
#include "rocblas_init.hpp"
//#include "rocblas_test.hpp"
#include <cinttypes>
#include <cstdio>
using rocblas_int = int;
using rocblas_stride = ptrdiff_t;
/* ============================================================================================
*/
/*! \brief base-class to allocate/deallocate device memory */
template <typename T, size_t PAD, typename U>
class d_vector
{
private:
size_t size, bytes;
public:
inline size_t nmemb() const noexcept
{
return size;
}
#ifdef GOOGLE_TEST
U guard[PAD];
d_vector(size_t s)
: size(s)
, bytes((s + PAD * 2) * sizeof(T))
{
// Initialize guard with random data
if(PAD > 0)
{
rocblas_init_nan(guard, PAD);
}
}
#else
d_vector(size_t s)
: size(s)
, bytes(s ? s * sizeof(T) : sizeof(T))
{
}
#endif
T* device_vector_setup()
{
T* d;
if((hipMalloc)(&d, bytes) != hipSuccess)
{
static char* lc = setlocale(LC_NUMERIC, "");
fprintf(stderr, "Error allocating %'zu bytes (%zu GB)\n", bytes, bytes >> 30);
d = nullptr;
}
#ifdef GOOGLE_TEST
else
{
if(PAD > 0)
{
// Copy guard to device memory before allocated memory
hipMemcpy(d, guard, sizeof(guard), hipMemcpyHostToDevice);
// Point to allocated block
d += PAD;
// Copy guard to device memory after allocated memory
hipMemcpy(d + size, guard, sizeof(guard), hipMemcpyHostToDevice);
}
}
#endif
return d;
}
void device_vector_check(T* d)
{
#ifdef GOOGLE_TEST
if(PAD > 0)
{
U host[PAD];
// Copy device memory after allocated memory to host
hipMemcpy(host, d + this->size, sizeof(guard), hipMemcpyDeviceToHost);
// Make sure no corruption has occurred
EXPECT_EQ(memcmp(host, guard, sizeof(guard)), 0);
// Point to guard before allocated memory
d -= PAD;
// Copy device memory after allocated memory to host
hipMemcpy(host, d, sizeof(guard), hipMemcpyDeviceToHost);
// Make sure no corruption has occurred
EXPECT_EQ(memcmp(host, guard, sizeof(guard)), 0);
}
#endif
}
void device_vector_teardown(T* d)
{
if(d != nullptr)
{
#ifdef GOOGLE_TEST
if(PAD > 0)
{
U host[PAD];
// Copy device memory after allocated memory to host
hipMemcpy(host, d + this->size, sizeof(guard), hipMemcpyDeviceToHost);
// Make sure no corruption has occurred
EXPECT_EQ(memcmp(host, guard, sizeof(guard)), 0);
// Point to guard before allocated memory
d -= PAD;
// Copy device memory after allocated memory to host
hipMemcpy(host, d, sizeof(guard), hipMemcpyDeviceToHost);
// Make sure no corruption has occurred
EXPECT_EQ(memcmp(host, guard, sizeof(guard)), 0);
}
#endif
// Free device memory
CHECK_HIP_ERROR((hipFree)(d));
}
}
};
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