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
}
public static extern CUResult cuWGLGetDevice(ref CUdevice pDevice, IntPtr hGpu);
public static extern CUResult cuGLCtxCreate(ref CUcontext pCtx, uint Flags, CUdevice device);
public static extern CUResult cuD3D10CtxCreate(ref CUcontext pCtx, ref CUdevice pCuDevice, uint Flags, IntPtr pDxDevice);
public static extern CUResult cuD3D10GetDevice(ref CUdevice pDevice, IntPtr pAdapter);
public static extern CUResult cuD3D9CtxCreate(ref CUcontext pCtx, ref CUdevice pCuDevice, CUCtxFlags Flags, IntPtr pDxDevice);
public static extern CUResult cuD3D9GetDevice(ref CUdevice pDevice, string pszAdapterName);
public static extern CUResult cuDeviceGet(ref CUdevice device, int ordinal);
public static extern CUResult cuDeviceGetAttribute(ref int pi, CUDeviceAttribute attrib, CUdevice dev);
public static extern CUResult cuCtxGetDevice(ref CUdevice device);
public static extern CUResult cuDeviceComputeCapability(ref int major, ref int minor, CUdevice dev);
public static extern CUResult cuCtxCreate(ref CUcontext pctx, uint flags, CUdevice dev);
public static extern CUResult cuDeviceCanAccessPeer(ref int canAccessPeer, CUdevice dev, CUdevice peerDev);
public static extern CUResult cuDeviceTotalMem(ref SizeT bytes, CUdevice dev);
public static extern CUResult cuDeviceGetProperties(ref CUDeviceProperties prop, CUdevice dev);
public static extern CUResult cuDeviceGetName([Out] byte[] name, int len, CUdevice dev);