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//
// MIT License
// Copyright (c) 2018 Jonathan R. Madsen
// 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
// copies 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 IMPLIED, 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 CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// ---------------------------------------------------------------
// PTL file
//
// Description:
//
// Here we declare the GPU interface
//
#ifndef sum_h_
#define sum_h_
#ifdef __cplusplus
# ifndef BEGIN_EXTERN_C
# define BEGIN_EXTERN_C \
extern "C" \
{
# endif
# ifndef END_EXTERN_C
# define END_EXTERN_C }
# endif
#else
# ifndef BEGIN_EXTERN_C
# define BEGIN_EXTERN_C
# endif
# ifndef END_EXTERN_C
# define END_EXTERN_C
# endif
#endif
#ifndef DLL
# if defined(WIN32) || defined(_WIN32) || defined(WIN64) || defined(_WIN64)
# define DLL __declspec(dllexport)
# else
# define DLL
# endif
#endif
#ifdef __cplusplus
# include <cstdio>
# include <cstring>
#else
# include <stdio.h>
# include <string.h>
#endif
#if defined(PTL_USE_CUDA)
# include <cuda.h>
# include <cuda_runtime_api.h>
# include <vector_types.h>
# if !defined(CUDA_CHECK_LAST_ERROR)
# if defined(DEBUG)
# define CUDA_CHECK_LAST_ERROR() \
{ \
cudaError err = cudaGetLastError(); \
if(cudaSuccess != err) \
{ \
fprintf(stderr, "cudaCheckError() failed at %s@'%s':%i : %s\n", \
__FUNCTION__, __FILE__, __LINE__, \
cudaGetErrorString(err)); \
exit(-1); \
} \
}
# else
# define CUDA_CHECK_LAST_ERROR() \
{ \
; \
}
# endif
# endif
#else
# if !defined(cudaStream_t)
# define cudaStream_t int
# endif
# if !defined(CUDA_CHECK_LAST_ERROR)
# define CUDA_CHECK_LAST_ERROR() \
{ \
; \
}
# endif
#endif
//============================================================================//
//
// NVTX macros
//
//============================================================================//
#if defined(PTL_USE_NVTX)
# include <nvToolsExt.h>
# ifndef NVTX_RANGE_PUSH
# define NVTX_RANGE_PUSH(obj) nvtxRangePushEx(obj)
# endif
# ifndef NVTX_RANGE_POP
# define NVTX_RANGE_POP(obj) \
cudaStreamSynchronize(obj); \
nvtxRangePop()
# endif
void
init_nvtx();
#else
# ifndef NVTX_RANGE_PUSH
# define NVTX_RANGE_PUSH(obj)
# endif
# ifndef NVTX_RANGE_POP
# define NVTX_RANGE_POP(obj)
# endif
void
init_nvtx()
{}
#endif
extern "C"
{
//----------------------------------------------------------------------------//
// global info
//----------------------------------------------------------------------------//
void DLL cuda_device_query();
int DLL cuda_device_count();
//----------------------------------------------------------------------------//
// device-specific info
//----------------------------------------------------------------------------//
// this functions sets "thread_device()" value to device number
int DLL cuda_set_device(int device);
// the functions below use "thread_device()" function to get device number
int DLL cuda_multi_processor_count();
int DLL cuda_max_threads_per_block();
int DLL cuda_warp_size();
int DLL cuda_shared_memory_per_block();
}
//----------------------------------------------------------------------------//
#endif
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