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/***************************************************************************************************
* Copyright (c) 2023 - 2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
* SPDX-License-Identifier: BSD-3-Clause
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. 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.
*
* 3. Neither the name of the copyright holder 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 THE COPYRIGHT HOLDER OR CONTRIBUTORS 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 TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
**************************************************************************************************/
#pragma once
/**
* \file
* \brief Debugging and logging functionality
*/
#include <cuda_runtime_api.h>
#include <cute/config.hpp>
namespace cute
{
/******************************************************************************
* Debug and logging macros
******************************************************************************/
/**
* Formats and prints the given message to stdout
*/
#if !defined(CUTE_LOG)
# if !defined(__CUDA_ARCH__)
# define CUTE_LOG(format, ...) printf(format, __VA_ARGS__)
# else
# define CUTE_LOG(format, ...) \
printf("[block (%d,%d,%d), thread (%d,%d,%d)]: " format, \
blockIdx.x, blockIdx.y, blockIdx.z, \
threadIdx.x, threadIdx.y, threadIdx.z, \
__VA_ARGS__);
# endif
#endif
/**
* Formats and prints the given message to stdout only if DEBUG is defined
*/
#if !defined(CUTE_LOG_DEBUG)
# ifdef DEBUG
# define CUTE_LOG_DEBUG(format, ...) CUTE_LOG(format, __VA_ARGS__)
# else
# define CUTE_LOG_DEBUG(format, ...)
# endif
#endif
/**
* \brief Perror macro with exit
*/
#if !defined(CUTE_ERROR_EXIT)
# define CUTE_ERROR_EXIT(e) \
do { \
cudaError_t code = (e); \
if (code != cudaSuccess) { \
fprintf(stderr, "<%s:%d> %s:\n %s: %s\n", \
__FILE__, __LINE__, #e, \
cudaGetErrorName(code), cudaGetErrorString(code)); \
fflush(stderr); \
exit(1); \
} \
} while (0)
#endif
#if !defined(CUTE_CHECK_LAST)
# define CUTE_CHECK_LAST() CUTE_ERROR_EXIT(cudaPeekAtLastError()); CUTE_ERROR_EXIT(cudaDeviceSynchronize())
#endif
#if !defined(CUTE_CHECK_ERROR)
# define CUTE_CHECK_ERROR(e) CUTE_ERROR_EXIT(e)
#endif
// A dummy function that uses compilation failure to print a type
template <class... T>
CUTE_HOST_DEVICE void
print_type() {
static_assert(sizeof...(T) < 0, "Printing type T.");
}
template <class... T>
CUTE_HOST_DEVICE void
print_type(T&&...) {
static_assert(sizeof...(T) < 0, "Printing type T.");
}
//
// Device-specific helpers
//
// e.g.
// if (thread0()) print(...);
// if (block0()) print(...);
// if (thread(42)) print(...);
CUTE_HOST_DEVICE
bool
block(int bid)
{
#if defined(__CUDA_ARCH__)
return blockIdx.x + blockIdx.y*gridDim.x + blockIdx.z*gridDim.x*gridDim.y == bid;
#else
return true;
#endif
}
CUTE_HOST_DEVICE
bool
thread(int tid, int bid)
{
#if defined(__CUDA_ARCH__)
return (threadIdx.x + threadIdx.y*blockDim.x + threadIdx.z*blockDim.x*blockDim.y == tid) && block(bid);
#else
return true;
#endif
}
CUTE_HOST_DEVICE
bool
thread(int tid)
{
return thread(tid,0);
}
CUTE_HOST_DEVICE
bool
thread0()
{
return thread(0,0);
}
CUTE_HOST_DEVICE
bool
block0()
{
return block(0);
}
} // end namespace cute
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