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/* Copyright (c) 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 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 ``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 OWNER 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.
*/
#ifdef _WIN32
#define WINDOWS_LEAN_AND_MEAN
#define NOMINMAX
#include <windows.h>
#else
#include <sys/utsname.h>
#endif
// Includes, system
#include <stdio.h>
#include <cassert>
// Includes CUDA
#include <cuda_runtime.h>
// Utilities and timing functions
#include <helper_functions.h> // includes cuda.h and cuda_runtime_api.h
// CUDA helper functions
#include <helper_cuda.h> // helper functions for CUDA error check
const char *sampleName = "simpleAssert";
////////////////////////////////////////////////////////////////////////////////
// Auto-Verification Code
bool testResult = true;
////////////////////////////////////////////////////////////////////////////////
// Kernels
////////////////////////////////////////////////////////////////////////////////
//! Tests assert function.
//! Thread whose id > N will print assertion failed error message.
////////////////////////////////////////////////////////////////////////////////
__global__ void testKernel(int N) {
int gtid = blockIdx.x * blockDim.x + threadIdx.x;
assert(gtid < N);
}
////////////////////////////////////////////////////////////////////////////////
// Declaration, forward
void runTest(int argc, char **argv);
////////////////////////////////////////////////////////////////////////////////
// Program main
////////////////////////////////////////////////////////////////////////////////
int main(int argc, char **argv) {
printf("%s starting...\n", sampleName);
runTest(argc, argv);
printf("%s completed, returned %s\n", sampleName,
testResult ? "OK" : "ERROR!");
exit(testResult ? EXIT_SUCCESS : EXIT_FAILURE);
}
void runTest(int argc, char **argv) {
int Nblocks = 2;
int Nthreads = 32;
cudaError_t error;
#ifndef _WIN32
utsname OS_System_Type;
uname(&OS_System_Type);
printf("OS_System_Type.release = %s\n", OS_System_Type.release);
if (!strcasecmp(OS_System_Type.sysname, "Darwin")) {
printf("simpleAssert is not current supported on Mac OSX\n\n");
exit(EXIT_SUCCESS);
} else {
printf("OS Info: <%s>\n\n", OS_System_Type.version);
}
#endif
// This will pick the best possible CUDA capable device
findCudaDevice(argc, (const char **)argv);
// Kernel configuration, where a one-dimensional
// grid and one-dimensional blocks are configured.
dim3 dimGrid(Nblocks);
dim3 dimBlock(Nthreads);
printf("Launch kernel to generate assertion failures\n");
testKernel<<<dimGrid, dimBlock>>>(60);
// Synchronize (flushes assert output).
printf("\n-- Begin assert output\n\n");
error = cudaDeviceSynchronize();
printf("\n-- End assert output\n\n");
// Check for errors and failed asserts in asynchronous kernel launch.
if (error == cudaErrorAssert) {
printf(
"Device assert failed as expected, "
"CUDA error message is: %s\n\n",
cudaGetErrorString(error));
}
testResult = error == cudaErrorAssert;
}
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