//public void SetGraphStructure(nvgraphCSRTopology32I topologyData)
//{
// res = NVGraphNativeMathods.nvgraphSetGraphStructure(_context, _descr, ref topologyData, nvgraphTopologyType.CSR32);
// Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nvgraphSetGraphStructure", res));
// if (res != nvgraphStatus.Success) throw new NVGraphException(res);
//}
//public void SetGraphStructure(nvgraphCSCTopology32I topologyData)
//{
// res = NVGraphNativeMathods.nvgraphSetGraphStructure(_context, _descr, ref topologyData, nvgraphTopologyType.CSC32);
// Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nvgraphSetGraphStructure", res));
// if (res != nvgraphStatus.Success) throw new NVGraphException(res);
// }
public void SetGraphStructure(nvgraphTopologyBase topologyData)
{
nvgraphTopologyType type;
if (topologyData is nvgraphCSRTopology32I)
{
type = nvgraphTopologyType.CSR32;
}
else
{
if (topologyData is nvgraphCSCTopology32I)
{
type = nvgraphTopologyType.CSC32;
}
else
{
type = nvgraphTopologyType.COO32;
}
}
res = NVGraphNativeMathods.nvgraphSetGraphStructure(_context, _descr, topologyData, type);
Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nvgraphSetGraphStructure", res));
if (res != nvgraphStatus.Success)
{
throw new NVGraphException(res);
}
}
public void WidestPath(SizeT weight_index, ref int source_vert, SizeT widest_path_index)
{
res = NVGraphNativeMathods.nvgraphWidestPath(_context, _descr, weight_index, ref source_vert, widest_path_index);
Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nvgraphWidestPath", res));
if (res != nvgraphStatus.Success)
{
throw new NVGraphException(res);
}
}
public void GetEdgeData <Type>(CudaDeviceVariable <Type> edgeData, SizeT setnum) where Type : struct
{
res = NVGraphNativeMathods.nvgraphGetEdgeData(_context, _descr, edgeData.DevicePointer, setnum);
Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nvgraphGetEdgeData", res));
if (res != nvgraphStatus.Success)
{
throw new NVGraphException(res);
}
}
public void AllocateEdgeData(cudaDataType[] settypes)
{
res = NVGraphNativeMathods.nvgraphAllocateEdgeData(_context, _descr, settypes.Length, settypes);
Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nvgraphAllocateEdgeData", res));
if (res != nvgraphStatus.Success)
{
throw new NVGraphException(res);
}
}
// public void GetGraphStructure(ref nvgraphCSRTopology32I topologyData)
//{
// nvgraphTopologyType type = nvgraphTopologyType.CSR32;
// res = NVGraphNativeMathods.nvgraphGetGraphStructure(_context, _descr, ref topologyData, ref type);
// Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nvgraphGetGraphStructure", res));
// if (res != nvgraphStatus.Success) throw new NVGraphException(res);
//}
//public void GetGraphStructure(ref nvgraphCSCTopology32I topologyData)
// {
// nvgraphTopologyType type = nvgraphTopologyType.CSC32;
// res = NVGraphNativeMathods.nvgraphGetGraphStructure(_context, _descr, ref topologyData, ref type);
// Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nvgraphGetGraphStructure", res));
// if (res != nvgraphStatus.Success) throw new NVGraphException(res);
//}
public void GetGraphStructure(nvgraphTopologyBase topologyData, ref nvgraphTopologyType type)
{
res = NVGraphNativeMathods.nvgraphGetGraphStructure(_context, _descr, topologyData, ref type);
Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nvgraphGetGraphStructure", res));
if (res != nvgraphStatus.Success)
{
throw new NVGraphException(res);
}
}
/// <summary>
/// </summary>
public GraphContext()
{
_context = new nvgraphContext();
res = NVGraphNativeMathods.nvgraphCreate(ref _context);
Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nvgraphCreate", res));
if (res != nvgraphStatus.Success)
{
throw new NVGraphException(res);
}
}
/// <summary>
/// </summary>
internal GraphDescriptor(nvgraphContext context)
{
_descr = new nvgraphGraphDescr();
_context = context;
res = NVGraphNativeMathods.nvgraphCreateGraphDescr(_context, ref _descr);
Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nvgraphCreateGraphDescr", res));
if (res != nvgraphStatus.Success)
{
throw new NVGraphException(res);
}
}
/// <summary>
/// For IDisposable
/// </summary>
/// <param name="fDisposing"></param>
protected virtual void Dispose(bool fDisposing)
{
if (fDisposing && !disposed)
{
res = NVGraphNativeMathods.nvgraphDestroy(_context);
Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nvgraphDestroy", res));
disposed = true;
}
if (!fDisposing && !disposed)
{
Debug.WriteLine(String.Format("ManagedCUDA.NVGraph not-disposed warning: {0}", this.GetType()));
}
}
public GraphDescriptor ExtractSubgraphByEdge(int[] subedges)
{
GraphDescriptor subdescr = new GraphDescriptor(_context);
res = NVGraphNativeMathods.nvgraphExtractSubgraphByEdge(_context, _descr, subdescr.GraphDescr, subedges, subedges.Length);
Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nvgraphExtractSubgraphByEdge", res));
if (res != nvgraphStatus.Success)
{
throw new NVGraphException(res);
}
return(subdescr);
}
public void Pagerank(SizeT weight_index, Array alpha, SizeT bookmark_index, int has_guess, SizeT pagerank_index, float tolerance, int max_iter)
{
GCHandle alphaHandle = GCHandle.Alloc(alpha, GCHandleType.Pinned);
try
{
res = NVGraphNativeMathods.nvgraphPagerank(_context, _descr, weight_index, alphaHandle.AddrOfPinnedObject(), bookmark_index, has_guess, pagerank_index, tolerance, max_iter);
Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nvgraphPagerank", res));
if (res != nvgraphStatus.Success)
{
throw new NVGraphException(res);
}
}
finally
{
alphaHandle.Free();
}
}
public void GetEdgeData(Array edgeData, SizeT setnum)
{
GCHandle handle = GCHandle.Alloc(edgeData, GCHandleType.Pinned);
try
{
res = NVGraphNativeMathods.nvgraphGetEdgeData(_context, _descr, handle.AddrOfPinnedObject(), setnum);
Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nvgraphGetEdgeData", res));
if (res != nvgraphStatus.Success)
{
throw new NVGraphException(res);
}
}
finally
{
handle.Free();
}
}
public void SrSpmv(SizeT weight_index, Array alpha, SizeT x_index, Array beta, SizeT y_index, nvgraphSemiring SR)
{
GCHandle alphaHandle = GCHandle.Alloc(alpha, GCHandleType.Pinned);
GCHandle betaHandle = GCHandle.Alloc(beta, GCHandleType.Pinned);
try
{
res = NVGraphNativeMathods.nvgraphSrSpmv(_context, _descr, weight_index, alphaHandle.AddrOfPinnedObject(), x_index, betaHandle.AddrOfPinnedObject(), y_index, SR);
Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nvgraphSrSpmv", res));
if (res != nvgraphStatus.Success)
{
throw new NVGraphException(res);
}
}
finally
{
alphaHandle.Free();
betaHandle.Free();
}
}
private static string GetInternalNameFromNVgraphStatus(nvgraphStatus error)
{
string val = NVGraphNativeMathods.nvgraphStatusGetString(error);
return(val);
}
