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/******************************************************************************
* Copyright (c) 2011, Duane Merrill. All rights reserved.
* Copyright (c) 2011-2022, 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 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.
*
******************************************************************************/
/**
* \file
* Error and event logging routines.
*
* The following macros definitions are supported:
* - \p CUB_LOG. Simple event messages are printed to \p stdout.
*/
#pragma once
#include <cub/util_namespace.cuh>
#include <cub/util_arch.cuh>
#include <nv/target>
#include <cstdio>
CUB_NAMESPACE_BEGIN
#ifdef DOXYGEN_SHOULD_SKIP_THIS // Only parse this during doxygen passes:
/**
* @def CUB_DEBUG_LOG
*
* Causes kernel launch configurations to be printed to the console
*/
#define CUB_DEBUG_LOG
/**
* @def CUB_DEBUG_SYNC
*
* Causes synchronization of the stream after every kernel launch to check
* for errors. Also causes kernel launch configurations to be printed to the
* console.
*/
#define CUB_DEBUG_SYNC
/**
* @def CUB_DEBUG_HOST_ASSERTIONS
*
* Extends `CUB_DEBUG_SYNC` effects by checking host-side precondition
* assertions.
*/
#define CUB_DEBUG_HOST_ASSERTIONS
/**
* @def CUB_DEBUG_DEVICE_ASSERTIONS
*
* Extends `CUB_DEBUG_HOST_ASSERTIONS` effects by checking device-side
* precondition assertions.
*/
#define CUB_DEBUG_DEVICE_ASSERTIONS
/**
* @def CUB_DEBUG_ALL
*
* Causes host and device-side precondition assertions to be checked. Apart
* from that, causes synchronization of the stream after every kernel launch to
* check for errors. Also causes kernel launch configurations to be printed to
* the console.
*/
#define CUB_DEBUG_ALL
#endif // DOXYGEN_SHOULD_SKIP_THIS
/**
* \addtogroup UtilMgmt
* @{
*/
// `CUB_DETAIL_DEBUG_LEVEL_*`: Implementation details, internal use only:
#define CUB_DETAIL_DEBUG_LEVEL_NONE 0
#define CUB_DETAIL_DEBUG_LEVEL_HOST_ASSERTIONS_ONLY 1
#define CUB_DETAIL_DEBUG_LEVEL_LOG 2
#define CUB_DETAIL_DEBUG_LEVEL_SYNC 3
#define CUB_DETAIL_DEBUG_LEVEL_HOST_ASSERTIONS 4
#define CUB_DETAIL_DEBUG_LEVEL_DEVICE_ASSERTIONS 5
#define CUB_DETAIL_DEBUG_LEVEL_ALL 1000
// `CUB_DEBUG_*`: User interfaces:
// Extra logging, no syncs
#ifdef CUB_DEBUG_LOG
#define CUB_DETAIL_DEBUG_LEVEL CUB_DETAIL_DEBUG_LEVEL_LOG
#endif
// Logging + syncs
#ifdef CUB_DEBUG_SYNC
#define CUB_DETAIL_DEBUG_LEVEL CUB_DETAIL_DEBUG_LEVEL_SYNC
#endif
// Logging + syncs + host assertions
#ifdef CUB_DEBUG_HOST_ASSERTIONS
#define CUB_DETAIL_DEBUG_LEVEL CUB_DETAIL_DEBUG_LEVEL_HOST_ASSERTIONS
#endif
// Logging + syncs + host assertions + device assertions
#ifdef CUB_DEBUG_DEVICE_ASSERTIONS
#define CUB_DETAIL_DEBUG_LEVEL CUB_DETAIL_DEBUG_LEVEL_DEVICE_ASSERTIONS
#endif
// All
#ifdef CUB_DEBUG_ALL
#define CUB_DETAIL_DEBUG_LEVEL CUB_DETAIL_DEBUG_LEVEL_ALL
#endif
// Default case, no extra debugging:
#ifndef CUB_DETAIL_DEBUG_LEVEL
#ifdef NDEBUG
#define CUB_DETAIL_DEBUG_LEVEL CUB_DETAIL_DEBUG_LEVEL_NONE
#else
#define CUB_DETAIL_DEBUG_LEVEL CUB_DETAIL_DEBUG_LEVEL_HOST_ASSERTIONS_ONLY
#endif
#endif
/*
* `CUB_DETAIL_DEBUG_ENABLE_*`:
* Internal implementation details, used for testing enabled debug features:
*/
#if CUB_DETAIL_DEBUG_LEVEL >= CUB_DETAIL_DEBUG_LEVEL_LOG
#define CUB_DETAIL_DEBUG_ENABLE_LOG
#endif
#if CUB_DETAIL_DEBUG_LEVEL >= CUB_DETAIL_DEBUG_LEVEL_SYNC
#define CUB_DETAIL_DEBUG_ENABLE_SYNC
#endif
#if (CUB_DETAIL_DEBUG_LEVEL >= CUB_DETAIL_DEBUG_LEVEL_HOST_ASSERTIONS) || \
(CUB_DETAIL_DEBUG_LEVEL == CUB_DETAIL_DEBUG_LEVEL_HOST_ASSERTIONS_ONLY)
#define CUB_DETAIL_DEBUG_ENABLE_HOST_ASSERTIONS
#endif
#if CUB_DETAIL_DEBUG_LEVEL >= CUB_DETAIL_DEBUG_LEVEL_DEVICE_ASSERTIONS
#define CUB_DETAIL_DEBUG_ENABLE_DEVICE_ASSERTIONS
#endif
/// CUB error reporting macro (prints error messages to stderr)
#if (defined(DEBUG) || defined(_DEBUG)) && !defined(CUB_STDERR)
#define CUB_STDERR
#endif
/**
* \brief %If \p CUB_STDERR is defined and \p error is not \p cudaSuccess, the
* corresponding error message is printed to \p stderr (or \p stdout in device
* code) along with the supplied source context.
*
* \return The CUDA error.
*/
__host__ __device__
__forceinline__
cudaError_t Debug(cudaError_t error, const char *filename, int line)
{
// Clear the global CUDA error state which may have been set by the last
// call. Otherwise, errors may "leak" to unrelated kernel launches.
// clang-format off
#ifndef CUB_RDC_ENABLED
#define CUB_TEMP_DEVICE_CODE
#else
#define CUB_TEMP_DEVICE_CODE cudaGetLastError()
#endif
NV_IF_TARGET(
NV_IS_HOST,
(cudaGetLastError();),
(CUB_TEMP_DEVICE_CODE;)
);
#undef CUB_TEMP_DEVICE_CODE
// clang-format on
#ifdef CUB_STDERR
if (error)
{
NV_IF_TARGET(
NV_IS_HOST, (
fprintf(stderr,
"CUDA error %d [%s, %d]: %s\n",
error,
filename,
line,
cudaGetErrorString(error));
fflush(stderr);
),
(
printf("CUDA error %d [block (%d,%d,%d) thread (%d,%d,%d), %s, %d]\n",
error,
blockIdx.z,
blockIdx.y,
blockIdx.x,
threadIdx.z,
threadIdx.y,
threadIdx.x,
filename,
line);
)
);
}
#else
(void)filename;
(void)line;
#endif
return error;
}
/**
* \brief Debug macro
*/
#ifndef CubDebug
#define CubDebug(e) CUB_NS_QUALIFIER::Debug((cudaError_t) (e), __FILE__, __LINE__)
#endif
/**
* \brief Debug macro with exit
*/
#ifndef CubDebugExit
#define CubDebugExit(e) if (CUB_NS_QUALIFIER::Debug((cudaError_t) (e), __FILE__, __LINE__)) { exit(1); }
#endif
/**
* \brief Log macro for printf statements.
*/
#if !defined(_CubLog)
#if defined(_NVHPC_CUDA) || !(defined(__clang__) && defined(__CUDA__))
// NVCC / NVC++
#define _CubLog(format, ...) \
do \
{ \
NV_IF_TARGET(NV_IS_HOST, \
(printf(format, __VA_ARGS__);), \
(printf("[block (%d,%d,%d), thread (%d,%d,%d)]: " format, \
blockIdx.z, \
blockIdx.y, \
blockIdx.x, \
threadIdx.z, \
threadIdx.y, \
threadIdx.x, \
__VA_ARGS__);)); \
} while (false)
#else // Clang:
// XXX shameless hack for clang around variadic printf...
// Compilies w/o supplying -std=c++11 but shows warning,
// so we silence them :)
#pragma clang diagnostic ignored "-Wc++11-extensions"
#pragma clang diagnostic ignored "-Wunnamed-type-template-args"
template <class... Args>
inline __host__ __device__ void va_printf(char const *format,
Args const &...args)
{
#ifdef __CUDA_ARCH__
printf(format,
blockIdx.z,
blockIdx.y,
blockIdx.x,
threadIdx.z,
threadIdx.y,
threadIdx.x,
args...);
#else
printf(format, args...);
#endif
}
#ifndef __CUDA_ARCH__
#define _CubLog(format, ...) CUB_NS_QUALIFIER::va_printf(format, __VA_ARGS__);
#else
#define _CubLog(format, ...) \
CUB_NS_QUALIFIER::va_printf("[block (%d,%d,%d), thread " \
"(%d,%d,%d)]: " format, \
__VA_ARGS__);
#endif
#endif
#endif
/** @} */ // end group UtilMgmt
CUB_NAMESPACE_END
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