cms::cudatest Namespace Reference

Classes
class	Thing

Functions
void	requireDevices ()
	Print message and exit if there are no CUDA devices. More...
bool	testDevices ()
	In presence of CUDA devices, return true; otherwise print message and return false. More...

Function Documentation

requireDevices()

void cms::cudatest::requireDevices

(

)

Print message and exit if there are no CUDA devices.

Definition at line 25 of file requireDevices.cc.

References beamvalidation::exit(), and testDevices().

                        {
    if (not testDevices()) {
      exit(EXIT_SUCCESS);
    }
  }

testDevices()

bool cms::cudatest::testDevices

(

)

In presence of CUDA devices, return true; otherwise print message and return false.

Definition at line 9 of file requireDevices.cc.

References DMR_cfg::cerr, cms::alpakatools::devices(), and mps_update::status.

Referenced by requireDevices().

                     {
    int devices = 0;
    auto status = cudaGetDeviceCount(&devices);
    if (status != cudaSuccess) {
      std::cerr << "Failed to initialise the CUDA runtime, the test will be skipped."
                << "\n";
      return false;
    }
    if (devices == 0) {
      std::cerr << "No CUDA devices available, the test will be skipped."
                << "\n";
      return false;
    }
    return true;
  }