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CudaMgr.cpp File Reference
#include "CudaMgr/CudaMgr.h"
#include "QueryEngine/NvidiaKernel.h"
#include <algorithm>
#include <boost/stacktrace.hpp>
#include <cassert>
#include <iostream>
#include <stdexcept>
#include "Logger/Logger.h"
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Namespaces

 CudaMgr_Namespace
 

Functions

std::string CudaMgr_Namespace::errorMessage (CUresult const status)
 
std::string get_cuda_home (void)
 

Function Documentation

std::string get_cuda_home ( void  )

Definition at line 405 of file CudaMgr.cpp.

References LOG, and logger::WARNING.

Referenced by UdfCompiler::compileToGpuByteCode().

405  {
406  static const char* CUDA_DEFAULT_PATH = "/usr/local/cuda";
407  const char* env = nullptr;
408 
409  if (!(env = getenv("CUDA_HOME")) && !(env = getenv("CUDA_DIR"))) {
410  // check if the default CUDA directory exists: /usr/local/cuda
411  if (boost::filesystem::exists(boost::filesystem::path(CUDA_DEFAULT_PATH)))
412  env = CUDA_DEFAULT_PATH;
413  }
414 
415  if (env == nullptr) {
416  LOG(WARNING) << "Could not find CUDA installation path: environment variables "
417  "CUDA_HOME or CUDA_DIR are not defined";
418  return "";
419  }
420 
421  // check if the CUDA directory is sensible:
422  auto cuda_include_dir = env + std::string("/include");
423  auto cuda_h_file = cuda_include_dir + "/cuda.h";
424  if (!boost::filesystem::exists(boost::filesystem::path(cuda_h_file))) {
425  LOG(WARNING) << "cuda.h does not exist in `" << cuda_include_dir << "`. Discarding `"
426  << env << "` as CUDA installation path.";
427  return "";
428  }
429 
430  return std::string(env);
431 }
#define LOG(tag)
Definition: Logger.h:188

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