public CUdevice GetDevice(int ordinal)
{
CUdevice device = new CUdevice();
this.LastError = CUDADriver.cuDeviceGet(ref device, ordinal);
return(device);
}
public HuForceDirectedLayout(int steps)
{
#if !DEBUG
try
{
#endif
CUDADriver.cuInit(0);
dev = new CUdevice();
CUDADriver.cuDeviceGet(ref dev, 0);
ctx = new CUcontext();
CUDADriver.cuCtxCreate(ref ctx, 0, dev);
mod = new CUmodule();
CUDADriver.cuModuleLoad(ref mod, "BarnesHut.cubin");
prop = new CUDeviceProperties();
CUDADriver.cuDeviceGetProperties(ref prop, dev);
int version = 0;
CUDADriver.cuDriverGetVersion(ref version);
string caps = "";
GASS.CUDA.CUDARuntime.cudaRuntimeGetVersion(ref version);
caps += "\tClock rate = " + prop.clockRate / 1000000 + " MHz\n";
caps += "\tMemory size = " + prop.totalConstantMemory / 1024 + " KB\n";
caps += "\tThreads per block = " + prop.maxThreadsPerBlock + "\n";
caps += "\tWarp size = " + prop.SIMDWidth + "\n";
caps += "\tCUDA version = " + version + "\n";
Logger.AddMessage(LogEntryType.Info, "Successfully initialized CUDA GPU computation\n" + caps);
#if !DEBUG
}
catch (Exception ex)
{
Logger.AddMessage(LogEntryType.Warning, "CUDA not available, falling back to CPU. Exception was: " + ex.Message);
CUDAEnabled = false;
}
#endif
}
