why this code can not complie?

[cqray1990]

/**

• Copyright 1993-2012 NVIDIA Corporation. All rights reserved.
• Please refer to the NVIDIA end user license agreement (EULA) associated
• with this source code for terms and conditions that govern your use of
• this software. Any use, reproduction, disclosure, or distribution of
• this software and related documentation outside the terms of the EULA
• is strictly prohibited. */ #include <stdio.h> #include <stdlib.h>

#include <cuda.h> #include <cuda_runtime_api.h>

static const int WORK_SIZE = 256;

/**

• This macro checks return value of the CUDA runtime call and exits
• the application if the call failed.
• See cuda.h for error code descriptions. */ #define CHECK_CUDA_RESULT(N) {
  CUresult result = N;
  if (result != 0) {
  printf("CUDA call on line %d returned error %d\n", LINE,
  result);
  exit(1);
  } }

int main(int argc, char **argv) { CUmodule module; CUcontext context; CUdevice device; CUdeviceptr deviceArray; CUfunction process;

void *kernelArguments[] = { &deviceArray };
int deviceCount;
unsigned int idata[WORK_SIZE], odata[WORK_SIZE];

for (int i = 0; i < WORK_SIZE; ++i) {
	idata[i] = i;
}

CHECK_CUDA_RESULT(cuInit(0));
CHECK_CUDA_RESULT(cuDeviceGetCount(&deviceCount));
if (deviceCount == 0) {
	printf("No CUDA-compatible devices found\n");
	exit(1);
}
CHECK_CUDA_RESULT(cuDeviceGet(&device, 0));
CHECK_CUDA_RESULT(cuCtxCreate(&context, 0, device));

CHECK_CUDA_RESULT(cuModuleLoad(&module, "bitreverse.fatbin"));
CHECK_CUDA_RESULT(cuModuleGetFunction(&process, module, "bitreverse"));

CHECK_CUDA_RESULT(cuMemAlloc(&deviceArray, sizeof(int) * WORK_SIZE));
CHECK_CUDA_RESULT(
		cuMemcpyHtoD(deviceArray, idata, sizeof(int) * WORK_SIZE));

CHECK_CUDA_RESULT(
		cuLaunchKernel(process, 1, 1, 1, WORK_SIZE, 1, 1, 0, NULL, kernelArguments, NULL));

CHECK_CUDA_RESULT(
		cuMemcpyDtoH(odata, deviceArray, sizeof(int) * WORK_SIZE));

for (int i = 0; i < WORK_SIZE; ++i) {
	printf("Input value: %u, output value: %u\n", idata[i], odata[i]);
}

CHECK_CUDA_RESULT(cuMemFree(deviceArray));
CHECK_CUDA_RESULT(cuCtxDestroy(context));

return 0;

}

[ingowald]

That code compiled just fine on my machine. Note that the markdown "swallowed" some underscores and backslashes, i added those back (in case that's what the problem is). In particular the LINE should be __LINE__, and the macro should have backslashes (\) at the end; but other than that the sample compiled just fine (ubuntu 20.04). What error(s) were you seeing?