internal static Texture2D DepthStencil(Context ctx, int width, int height)
{
Image image = ctx.Device.CreateImage(new ImageCreateInfo
{
ImageType = ImageType.Image2D,
Format = ctx.DepthStencilFormat,
Extent = new Extent3D(width, height, 1),
MipLevels = 1,
ArrayLayers = 1,
Samples = SampleCounts.Count1,
Tiling = ImageTiling.Optimal,
Usage = ImageUsages.DepthStencilAttachment | ImageUsages.TransferSrc
});
MemoryRequirements memReq = image.GetMemoryRequirements();
int heapIndex = ctx.MemoryProperties.MemoryTypes.IndexOf(
memReq.MemoryTypeBits, MemoryProperties.DeviceLocal);
DeviceMemory memory = ctx.Device.AllocateMemory(new MemoryAllocateInfo(memReq.Size, heapIndex));
image.BindMemory(memory);
ImageView view = image.CreateView(new ImageViewCreateInfo(ctx.DepthStencilFormat,
new ImageSubresourceRange(ImageAspects.Depth | ImageAspects.Stencil, 0, 1, 0, 1)));
//var sampler = VKHelper.CreateSampler(ctx, Filter.Linear, Filter.Linear, SamplerMipmapMode.Nearest);
return(new Texture2D(ctx, image, memory, view, ctx.DepthStencilFormat, new Vector2I(width, height), false));
}
public VKBuffer(
string name, Graphics graphics, long count, BufferUsages usages, MemoryProperties memoryProperties,
BufferCreateFlags flags = BufferCreateFlags.None, SharingMode sharingMode = SharingMode.Exclusive,
int[] queueFamilyIndices = null
)
{
Name = name;
Graphics = graphics;
Count = count;
Size = count * Interop.SizeOf <T>();
Usages = usages;
Buffer = Graphics.Device.CreateBuffer(new BufferCreateInfo(
size: Size,
usages: usages,
flags: flags,
sharingMode: sharingMode,
queueFamilyIndices: queueFamilyIndices
));
var reqs = Buffer.GetMemoryRequirements();
DeviceMemory = Graphics.Device.AllocateMemory(new MemoryAllocateInfo(
reqs.Size,
graphics.GetMemoryTypeIndex(reqs.MemoryTypeBits, memoryProperties)
));
Buffer.BindMemory(DeviceMemory);
}
/// <inheritdoc cref="IDisposable.Dispose"/>
public void Dispose()
{
_mapped?.Dispose();
_mapped = null;
_memory.Dispose();
_memory = null;
}
void CopyBitmapToBuffer(IntPtr scan0, int bitmapSize, DeviceMemory bufferMem, MemoryRequirements memRequirements)
{
var map = device.MapMemory(bufferMem, 0, memRequirements.Size);
Copy(scan0, map, bitmapSize);
device.UnmapMemory(bufferMem);
}
public ConnectionTests()
{
_typesContainer =
new TypesContainer(Program.GetApp().Container.Resolve(typeof(IUnityContainer)) as IUnityContainer);
_device = Program.GetDevice();
_configuration = _device.DeviceFragments.First(fragment => fragment.StrongName == "Configuration") as
IDeviceConfiguration;
_shell = _typesContainer.Resolve <ShellViewModel>();
_deviceViewModelFactory = _typesContainer.Resolve <IDeviceViewModelFactory>();
var deviceMemory = new DeviceMemory();
_typesContainer.Resolve <IDevicesContainerService>()
.AddConnectableItem(_device);
_device.DeviceMemory = deviceMemory;
_deviceViewModel = _shell.ProjectBrowserViewModel.DeviceViewModels[0];
_configurationFragmentViewModel = null;
_configurationFragmentViewModel = _shell.ProjectBrowserViewModel.DeviceViewModels[0].FragmentViewModels
.First(model => model.NameForUiKey == "Configuration") as
RuntimeConfigurationViewModel;
_measuringMonitorViewModel = _shell.ProjectBrowserViewModel.DeviceViewModels[0].FragmentViewModels
.First(model => model.NameForUiKey == "MeasuringMonitor") as
MeasuringMonitorViewModel;
_readCommand = _configurationFragmentViewModel.FragmentOptionsViewModel.FragmentOptionGroupViewModels
.First(model => model.NameKey == "Device").FragmentOptionCommandViewModels
.First(model => model.TitleKey == ApplicationGlobalNames.UiCommandStrings.READ_STRING_KEY)
.OptionCommand as RelayCommand;
}
//[CudnnMnistFCF]
public void FullyConnectedForward(Layer ip, nchw_t nchw, DeviceMemory <float> srcData, ref DeviceMemory <float> dstData)
{
if (nchw.N != 1)
{
throw new Exception("Not Implemented");
}
var dimX = nchw.C * nchw.H * nchw.W;
var dimY = ip.Outputs;
Resize(ref dstData, dimY);
const float alpha = 1.0f;
const float beta = 1.0f;
// This cuMemcpyDtoD is a raw CUDA API call so it should be guarded with worker.Eval
var output = dstData;
_worker.EvalAction(() => CUDAInterop.cuMemcpyDtoD(output.Ptr.Handle, ip.BiasD.Handle, (IntPtr)(dimY * sizeof(float))));
// This cublas call doesn't need worker.Eval because cublas is a thin wrapper for the raw API
// and it alreadyhas worke.eval
_cublas.Sgemv(CUBLASInterop.cublasOperation_t.CUBLAS_OP_T, dimX, dimY, alpha, ip.DataD.Ptr, dimX,
srcData.Ptr, 1, beta, dstData.Ptr, 1);
nchw.H = 1;
nchw.W = 1;
nchw.C = dimY;
}
public void BindMemoryAndCreateView()
{
using (Image image = CreateImage())
{
PhysicalDeviceMemoryProperties deviceMemProps = PhysicalDevice.GetMemoryProperties();
MemoryRequirements memReq = image.GetMemoryRequirements();
using (DeviceMemory memory = Device.AllocateMemory(new MemoryAllocateInfo(
memReq.Size,
deviceMemProps.MemoryTypes.IndexOf(memReq.MemoryTypeBits, 0))))
{
image.BindMemory(memory);
var createInfo = new ImageViewCreateInfo
{
Format = Format.B8G8R8A8UNorm,
ViewType = ImageViewType.Image2D,
SubresourceRange = new ImageSubresourceRange
{
AspectMask = ImageAspects.Color,
LayerCount = 1,
LevelCount = 1
}
};
using (image.CreateView(createInfo)) { }
using (image.CreateView(createInfo, CustomAllocator)) { }
}
}
}
internal Chunk(
Device logicalDevice,
HostDevice hostDevice,
Location location,
int supportedMemoryTypesFilter,
long size = 128 *ByteUtils.MEGABYTE_TO_BYTE)
{
if (logicalDevice == null)
{
throw new ArgumentNullException(nameof(logicalDevice));
}
if (hostDevice == null)
{
throw new ArgumentNullException(nameof(hostDevice));
}
this.logicalDevice = logicalDevice;
this.location = location;
totalSize = size;
//Add a block the size of the entire chunk to the free set
freeBlocks.Add(new Block(container: this, offset: 0, size: size));
//Find the memory type on the gpu to place this pool in
memoryTypeIndex = hostDevice.GetMemoryType(
properties: location == Location.Device ?
MemoryProperties.DeviceLocal :
MemoryProperties.HostVisible,
supportedTypesFilter: supportedMemoryTypesFilter);
//Allocate the memory
memory = logicalDevice.AllocateMemory(new MemoryAllocateInfo(
allocationSize: size,
memoryTypeIndex: memoryTypeIndex));
}
/// <summary>
/// Checks whether or not the Cuda features are currently supported
/// </summary>
public static bool IsGpuAccelerationSupported()
{
try
{
// CUDA test
Gpu gpu = Gpu.Default;
if (gpu == null)
{
return(false);
}
if (!Dnn.IsAvailable)
{
return(false); // cuDNN
}
using (DeviceMemory <float> sample_gpu = gpu.AllocateDevice <float>(1024))
{
deviceptr <float> ptr = sample_gpu.Ptr;
void Kernel(int i) => ptr[i] = i;
Alea.Parallel.GpuExtension.For(gpu, 0, 1024, Kernel); // JIT test
float[] sample = Gpu.CopyToHost(sample_gpu);
return(Enumerable.Range(0, 1024).Select <int, float>(i => i).ToArray().ContentEquals(sample));
}
}
catch
{
// Missing .dll or other errors
return(false);
}
}
public void Read()
{
IntPtr srcPtr = DeviceMemory.Map(0, HostSize);
GCHandle handle = GCHandle.Alloc(HostResource, GCHandleType.Pinned);
IntPtr dstPtr = handle.AddrOfPinnedObject();
if (HostStride == DeviceStride)
{
System.Buffer.MemoryCopy(
srcPtr.ToPointer(),
dstPtr.ToPointer(),
HostSize,
HostSize);
}
else
{
var srcWalk = (byte *)srcPtr;
var dstWalk = (byte *)dstPtr;
for (int i = 0; i < Count; i++)
{
System.Buffer.MemoryCopy(srcWalk, dstWalk, HostStride, HostStride);
srcWalk += DeviceStride;
dstWalk += HostStride;
}
}
handle.Free();
DeviceMemory.Unmap();
}
public void AddBias(CUDNNTensorDescriptor dstTensorDesc, Layer layer, int c, DeviceMemory<float> data)
{
_biasTensorDesc.Set4D(TensorFormat, DataType, 1, c, 1, 1);
const float alpha = 1.0f;
const float beta = 1.0f;
_cudnn.AddTensor(CUDNNInterop.cudnnAddMode_t.CUDNN_ADD_SAME_C, alpha, _biasTensorDesc, layer.BiasD.Ptr, beta, dstTensorDesc, data.Ptr);
}
private unsafe void ReleaseDevice()
{
EmptyTexelBuffer.Dispose();
EmptyTexelBuffer = null;
// Wait for all queues to be idle
nativeDevice.WaitIdle();
// Destroy all remaining fences
GetCompletedValue();
// Mark upload buffer for destruction
if (nativeUploadBuffer != SharpVulkan.Buffer.Null)
{
NativeDevice.UnmapMemory(nativeUploadBufferMemory);
nativeResourceCollector.Add(lastCompletedFence, nativeUploadBuffer);
nativeResourceCollector.Add(lastCompletedFence, nativeUploadBufferMemory);
nativeUploadBuffer = SharpVulkan.Buffer.Null;
nativeUploadBufferMemory = DeviceMemory.Null;
}
// Release fenced resources
nativeResourceCollector.Dispose();
DescriptorPools.Dispose();
nativeDevice.DestroyCommandPool(NativeCopyCommandPool);
nativeDevice.Destroy();
}
public void UpdateSetsDescriptorWrite()
{
const int bufferSize = 256;
var layoutCreateInfo = new DescriptorSetLayoutCreateInfo(
new DescriptorSetLayoutBinding(0, DescriptorType.StorageBuffer, 1));
var poolCreateInfo = new DescriptorPoolCreateInfo(
1,
new[] { new DescriptorPoolSize(DescriptorType.StorageBuffer, 1) },
DescriptorPoolCreateFlags.FreeDescriptorSet);
using (Buffer buffer = Device.CreateBuffer(new BufferCreateInfo(bufferSize, BufferUsages.StorageBuffer)))
using (DeviceMemory memory = Device.AllocateMemory(new MemoryAllocateInfo(bufferSize, 0)))
using (DescriptorSetLayout layout = Device.CreateDescriptorSetLayout(layoutCreateInfo))
using (DescriptorPool pool = Device.CreateDescriptorPool(poolCreateInfo))
using (DescriptorSet set = pool.AllocateSets(new DescriptorSetAllocateInfo(1, layout))[0])
{
// Required to satisfy the validation layer.
buffer.GetMemoryRequirements();
buffer.BindMemory(memory);
var descriptorWrite = new WriteDescriptorSet(set, 0, 0, 1, DescriptorType.StorageBuffer,
bufferInfo: new[] { new DescriptorBufferInfo(buffer) });
pool.UpdateSets(new[] { descriptorWrite });
}
}
private AdaptiveLBP(Size size)
{
this.size = size;
// initialize data structures to avoid reallocating with every call
hist = new int[numSubuniformPatterns * numVarBins];
hist2 = new int[numSubuniformPatterns * numVarBins];
lbpImageGPU = worker.Malloc <short>(size.Width * size.Height);
varImageGPU = worker.Malloc <short>(size.Width * size.Height);
histGPU = worker.Malloc <int>(hist.Length);
floatImageGPU = worker.Malloc <float>(size.Width * size.Height);
// precompute the subuniform bin for each LBP pattern, and push it to the GPU
subuniformBins = new short[(short)Math.Pow(2, numNeighbors)];
for (int i = 0; i < subuniformBins.Length; i++)
{
short bin = GetPatternNum(i);
subuniformBins[i] = bin;
}
subuniformBinsGPU = worker.Malloc(subuniformBins);
neighborCoordinateX = new float[numNeighbors];
neighborCoordinateY = new float[numNeighbors];
for (int i = 0; i < numNeighbors; i++)
{
float xx = (float)Math.Cos(2.0 * PI * (double)i / (double)numNeighbors);
float yy = (float)Math.Sin(2.0 * PI * (double)i / (double)numNeighbors);
neighborCoordinateX[i] = xx;
neighborCoordinateY[i] = yy;
}
neighborCoordinateXGPU = worker.Malloc(neighborCoordinateX);
neighborCoordinateYGPU = worker.Malloc(neighborCoordinateY);
varBinsGPU = worker.Malloc(varBins);
// initialize CUDA parameters
var blockDims = new dim3(8, 8);
var gridDims = new dim3(Common.divup(size.Width, blockDims.x), Common.divup(size.Height, blockDims.y));
lp = new LaunchParam(gridDims, blockDims);
// create filters
for (int i = 0; i < numScales; i++)
{
float[,] filter = LaplacianOfGaussian.Generate(i + 1);
filters[i] = Utils.Flatten(filter);
filtersGPU[i] = worker.Malloc(filters[i]);
filterSizes[i] = (filter.GetLength(0) - 1) / 2;
}
// allocate space for scale space images
deviceptr <float>[] tempPointers = new deviceptr <float> [numScales];
for (int i = 0; i < numScales; i++)
{
scaledImages[i] = worker.Malloc <float>(size.Width * size.Height);
tempPointers[i] = scaledImages[i].Ptr;
}
scaledImagePointers = worker.Malloc(tempPointers);
pixelScaleImage = worker.Malloc <short>(size.Width * size.Height);
}
public VulkanImage(BufferManager manager, Image image, DeviceMemory memory, Format format)
{
this.manager = manager;
this.image = image;
this.memory = memory;
this.format = format;
}
public static Texture2D RenderTarget(Graphics g, int width, int height)
{
const Format format = Format.B8G8R8A8UNorm;
// Create optimal tiled target image.
Image image = g.Context.Device.CreateImage(new ImageCreateInfo
{
ImageType = ImageType.Image2D,
Format = format,
MipLevels = 1,
ArrayLayers = 1,
Samples = SampleCounts.Count1,
Tiling = ImageTiling.Optimal,
SharingMode = SharingMode.Exclusive,
InitialLayout = ImageLayout.Undefined,
Extent = new Extent3D(width, height, 1),
Usage = ImageUsages.Sampled | ImageUsages.TransferDst | ImageUsages.TransferSrc | ImageUsages.ColorAttachment
});
MemoryRequirements imageMemReq = image.GetMemoryRequirements();
int imageHeapIndex = g.Context.MemoryProperties.MemoryTypes.IndexOf(
imageMemReq.MemoryTypeBits, MemoryProperties.DeviceLocal);
DeviceMemory memory = g.Context.Device.AllocateMemory(new MemoryAllocateInfo(imageMemReq.Size, imageHeapIndex));
image.BindMemory(memory);
var subresourceRange = new ImageSubresourceRange(ImageAspects.Color, 0, 1, 0, 1);
// Create image view.
ImageView view = image.CreateView(new ImageViewCreateInfo(format, subresourceRange));
var sampler = VKHelper.CreateSampler(g.Context, Filter.Linear, Filter.Linear, SamplerMipmapMode.Linear);
return(new Texture2D(g.Context, image, memory, view, format, new Vector2I(width, height), true));
}
protected unsafe void AllocateMemory(MemoryPropertyFlags memoryProperties, MemoryRequirements memoryRequirements)
{
if (NativeMemory != DeviceMemory.Null)
return;
if (memoryRequirements.Size == 0)
return;
var allocateInfo = new MemoryAllocateInfo
{
StructureType = StructureType.MemoryAllocateInfo,
AllocationSize = memoryRequirements.Size,
};
PhysicalDeviceMemoryProperties physicalDeviceMemoryProperties;
GraphicsDevice.NativePhysicalDevice.GetMemoryProperties(out physicalDeviceMemoryProperties);
var typeBits = memoryRequirements.MemoryTypeBits;
for (uint i = 0; i < physicalDeviceMemoryProperties.MemoryTypeCount; i++)
{
if ((typeBits & 1) == 1)
{
// Type is available, does it match user properties?
var memoryType = *((MemoryType*)&physicalDeviceMemoryProperties.MemoryTypes + i);
if ((memoryType.PropertyFlags & memoryProperties) == memoryProperties)
{
allocateInfo.MemoryTypeIndex = i;
break;
}
}
typeBits >>= 1;
}
NativeMemory = GraphicsDevice.NativeDevice.AllocateMemory(ref allocateInfo);
}
public void CreateDepth()
{
ImageCreateInfo imageInfo = new ImageCreateInfo
{
ImageType = ImageType.Image2D,
Format = Format.D16Unorm,
Extent = new Extent3D
{
Width = BackBufferWidth,
Height = BackBufferHeight,
Depth = 1,
},
MipLevels = 1,
ArrayLayers = 1,
Samples = (uint)SampleCountFlags.Count1,
Tiling = ImageTiling.Optimal,
Usage = (uint)ImageUsageFlags.DepthStencilAttachment,
Flags = 0,
};
Image image = Device.CreateImage(imageInfo, null);
MemoryRequirements memReq = Device.GetImageMemoryRequirements(image);
uint memTypeIndex;
if (!TryGetMemoryTypeFromProperties(memReq.MemoryTypeBits, 0, out memTypeIndex))
{
throw new Exception("Failed to create back buffer");
}
MemoryAllocateInfo allocInfo = new MemoryAllocateInfo
{
AllocationSize = 0,
MemoryTypeIndex = memTypeIndex,
};
DeviceMemory imageMem = Device.AllocateMemory(allocInfo, null);
Device.BindImageMemory(image, imageMem, 0);
SetImageLayout(image, ImageAspectFlags.Depth, ImageLayout.Undefined, ImageLayout.DepthStencilAttachmentOptimal, 0);
ImageViewCreateInfo imageViewInfo = new ImageViewCreateInfo
{
Image = image,
Format = imageInfo.Format,
SubresourceRange = new ImageSubresourceRange
{
AspectMask = (uint)ImageAspectFlags.Depth,
BaseMipLevel = 0,
LevelCount = 1,
BaseArrayLayer = 0,
LayerCount = 1,
},
Flags = 0,
ViewType = ImageViewType.View2D,
};
ImageView imageView = Device.CreateImageView(imageViewInfo, null);
}
public unsafe void FullyConnectedBackwardData()
{
FullyConnectedLayer fc = new FullyConnectedLayer(TensorInfo.Linear(231), 125, ActivationType.Sigmoid, WeightsInitializationMode.GlorotUniform, BiasInitializationMode.Gaussian);
Tensor dy = CreateRandomTensor(400, fc.OutputInfo.Size);
fixed(float *pw = fc.Weights, pb = fc.Biases)
{
Tensor.Reshape(pw, fc.InputInfo.Size, fc.OutputInfo.Size, out Tensor w);
Tensor.Reshape(pb, 1, fc.OutputInfo.Size, out Tensor b);
Tensor.New(dy.Entities, fc.InputInfo.Size, out Tensor dx1);
CpuDnn.FullyConnectedBackwardData(w, dy, dx1);
Gpu gpu = Gpu.Default;
using (DeviceMemory <float>
dy_gpu = gpu.AllocateDevice(dy),
w_gpu = gpu.AllocateDevice(w),
dx_gpu = gpu.AllocateDevice <float>(dx1.Size))
{
Dnn.Get(gpu).FullyConnectedBackwardData(dy.Entities, fc.InputInfo.Size, fc.OutputInfo.Size, dy_gpu.Ptr, w_gpu.Ptr, dx_gpu.Ptr);
dx_gpu.CopyToHost(dx1.Entities, dx1.Length, out Tensor dx2);
Assert.IsTrue(dx1.ContentEquals(dx2));
Tensor.Free(dy, dx1, dx2);
}
}
}
public static VKBuffer InstanceInfo <T>(Graphics g, int count) where T : struct
{
long size = count * Interop.SizeOf <T>();
// Create a staging buffer that is writable by host.
var stagingBuffer = g.Context.Device.CreateBuffer(new BufferCreateInfo(size, BufferUsages.TransferSrc));
MemoryRequirements stagingReq = stagingBuffer.GetMemoryRequirements();
int stagingMemoryTypeIndex = g.Context.MemoryProperties.MemoryTypes.IndexOf(
stagingReq.MemoryTypeBits,
MemoryProperties.HostVisible | MemoryProperties.HostCoherent);
DeviceMemory stagingMemory = g.Context.Device.AllocateMemory(new MemoryAllocateInfo(stagingReq.Size, stagingMemoryTypeIndex));
stagingBuffer.BindMemory(stagingMemory);
// Create a device local buffer where the vertex data will be copied and which will be used for rendering.
VulkanCore.Buffer buffer = g.Context.Device.CreateBuffer(new BufferCreateInfo(size, BufferUsages.VertexBuffer | BufferUsages.TransferDst));
MemoryRequirements req = buffer.GetMemoryRequirements();
int memoryTypeIndex = g.Context.MemoryProperties.MemoryTypes.IndexOf(
req.MemoryTypeBits,
MemoryProperties.DeviceLocal);
DeviceMemory memory = g.Context.Device.AllocateMemory(new MemoryAllocateInfo(req.Size, memoryTypeIndex));
buffer.BindMemory(memory);
return(new VKBuffer(g.Context, buffer, memory, g.Context.Device.CreateFence(), count, size, true, stagingBuffer, stagingMemory, g.Context.GraphicsCommandPool.AllocateBuffers(new CommandBufferAllocateInfo(CommandBufferLevel.Primary, 1))[0]));
}
public unsafe void FullyConnectedForward()
{
FullyConnectedLayer fc = new FullyConnectedLayer(TensorInfo.Linear(231), 125, ActivationType.Sigmoid, WeightsInitializationMode.GlorotUniform, BiasInitializationMode.Gaussian);
Tensor x = CreateRandomTensor(400, fc.InputInfo.Size);
fixed(float *pw = fc.Weights, pb = fc.Biases)
{
Tensor.Reshape(pw, fc.InputInfo.Size, fc.OutputInfo.Size, out Tensor w);
Tensor.Reshape(pb, 1, fc.OutputInfo.Size, out Tensor b);
Tensor.New(x.Entities, fc.OutputInfo.Size, out Tensor y1);
CpuDnn.FullyConnectedForward(x, w, b, y1);
Gpu gpu = Gpu.Default;
using (DeviceMemory <float>
x_gpu = gpu.AllocateDevice(x),
w_gpu = gpu.AllocateDevice(w),
b_gpu = gpu.AllocateDevice(b),
y_gpu = gpu.AllocateDevice <float>(y1.Size))
{
Dnn.Get(gpu).FullyConnectedForward(x.Entities, x.Length, y1.Length, x_gpu.Ptr, w_gpu.Ptr, b_gpu.Ptr, y_gpu.Ptr);
y_gpu.CopyToHost(y1.Entities, y1.Length, out Tensor y2);
Assert.IsTrue(y1.ContentEquals(y2));
Tensor.Free(x, y1, y2);
}
}
}
private VulkanImage(Image image, DeviceMemory memory, ImageView view, Format format)
{
Image = image;
Memory = memory;
View = view;
Format = format;
}
//[/CudnnMnistFCF]
//[CudnnMnistCF]
public void ConvoluteForward(Layer conv, nchw_t nchw, DeviceMemory <float> srcData, ref DeviceMemory <float> dstData)
{
_srcTensorDesc.Set4D(TensorFormat, DataType, nchw.N, nchw.C, nchw.H, nchw.W);
_filterDesc.Set4D(DataType, conv.Outputs, conv.Inputs, conv.KernelDim, conv.KernelDim);
_convDesc.Set2D(0, 0, 1, 1, 1, 1, CUDNNInterop.cudnnConvolutionMode_t.CUDNN_CROSS_CORRELATION);
// find dimension of convoltion output
// outputDim = 1 + (inputDim + 2*pad - filterDim) / convolutionStride
int n, c, h, w;
_convDesc.Get2DForwardOutputDim(_srcTensorDesc, _filterDesc, out n, out c, out h, out w);
nchw.N = n;
nchw.C = c;
nchw.H = h;
nchw.W = w;
_dstTensorDesc.Set4D(TensorFormat, DataType, nchw.N, nchw.C, nchw.H, nchw.W);
var algo = _cudnn.GetConvolutionForwardAlgorithm(_srcTensorDesc, _filterDesc, _convDesc, _dstTensorDesc,
CUDNNInterop.cudnnConvolutionFwdPreference_t.CUDNN_CONVOLUTION_FWD_PREFER_FASTEST, (IntPtr)0);
Resize(ref dstData, nchw.N * nchw.C * nchw.H * nchw.W);
var sizeInBytes = _cudnn.GetConvolutionForwardWorkspaceSize(_srcTensorDesc, _filterDesc, _convDesc, _dstTensorDesc, algo);
using (var workSpace = _worker.Malloc <byte>(sizeInBytes.ToInt32()))
{
const float alpha = 1.0f;
const float beta = 0.0f;
_cudnn.ConvolutionForward(alpha, _srcTensorDesc, srcData.Ptr, _filterDesc, conv.DataD.Ptr, _convDesc, algo, workSpace.Ptr, sizeInBytes, beta, _dstTensorDesc, dstData.Ptr);
AddBias(_dstTensorDesc, conv, c, dstData);
}
}
void CopyArrayToBuffer(DeviceMemory bufferMem, DeviceSize size, byte[] data)
{
var map = device.MapMemory(bufferMem, 0, size);
Marshal.Copy(data, 0, map, (int)((ulong)size));
device.UnmapMemory(bufferMem);
}
public void CmdDraw()
{
var renderPassCreateInfo = new RenderPassCreateInfo(new[] { new SubpassDescription(
new[] { new AttachmentReference(0, ImageLayout.ColorAttachmentOptimal) }) },
new[] { new AttachmentDescription {
Format = Format.B8G8R8A8UNorm, Samples = SampleCounts.Count1
} });
var imageCreateInfo = new ImageCreateInfo
{
Usage = ImageUsages.ColorAttachment,
Format = Format.B8G8R8A8UNorm,
Extent = new Extent3D(2, 2, 1),
ImageType = ImageType.Image2D,
MipLevels = 1,
ArrayLayers = 1,
Samples = SampleCounts.Count1
};
var imageViewCreateInfo = new ImageViewCreateInfo(
Format.B8G8R8A8UNorm,
new ImageSubresourceRange(ImageAspects.Color, 0, 1, 0, 1));
using (ShaderModule vertexShader = Device.CreateShaderModule(new ShaderModuleCreateInfo(ReadAllBytes("Shader.vert.spv"))))
using (ShaderModule fragmentShader = Device.CreateShaderModule(new ShaderModuleCreateInfo(ReadAllBytes("Shader.frag.spv"))))
using (PipelineLayout pipelineLayout = Device.CreatePipelineLayout())
using (RenderPass renderPass = Device.CreateRenderPass(renderPassCreateInfo))
using (Image image = Device.CreateImage(imageCreateInfo))
{
MemoryRequirements imageMemReq = image.GetMemoryRequirements();
int memTypeIndex = PhysicalDeviceMemoryProperties.MemoryTypes.IndexOf(imageMemReq.MemoryTypeBits, MemoryProperties.DeviceLocal);
using (DeviceMemory imageMemory = Device.AllocateMemory(new MemoryAllocateInfo(imageMemReq.Size, memTypeIndex)))
{
image.BindMemory(imageMemory);
using (ImageView imageView = image.CreateView(imageViewCreateInfo))
using (Framebuffer framebuffer = renderPass.CreateFramebuffer(new FramebufferCreateInfo(new[] { imageView }, 2, 2)))
using (Pipeline pipeline = Device.CreateGraphicsPipeline(new GraphicsPipelineCreateInfo(
pipelineLayout,
renderPass,
0,
new[]
{
new PipelineShaderStageCreateInfo(ShaderStages.Vertex, vertexShader, "main"),
new PipelineShaderStageCreateInfo(ShaderStages.Fragment, fragmentShader, "main")
},
new PipelineInputAssemblyStateCreateInfo(),
new PipelineVertexInputStateCreateInfo(),
new PipelineRasterizationStateCreateInfo {
RasterizerDiscardEnable = true, LineWidth = 1.0f
})))
{
CommandBuffer.Begin();
CommandBuffer.CmdBeginRenderPass(new RenderPassBeginInfo(framebuffer, new Rect2D(0, 0, 2, 2)));
CommandBuffer.CmdBindPipeline(PipelineBindPoint.Graphics, pipeline);
CommandBuffer.CmdDraw(3);
CommandBuffer.CmdEndRenderPass();
CommandBuffer.End();
}
}
}
}
public SharedFontManager(Switch Device, long PhysicalAddress)
{
this.PhysicalAddress = PhysicalAddress;
Memory = Device.Memory;
FontsPath = Path.Combine(Device.VFs.GetSystemPath(), "fonts");
}
/// <summary>
/// Get a Windows HANDLE for a memory object.
/// </summary>
/// <param name="memory">The memory object from which the handle will be exported.</param>
/// <param name="handleType">The type of handle requested.</param>
/// <returns>The Windows handle representing the underlying resources of the device memory object.</returns>
/// <exception cref="VulkanException">Vulkan returns an error code.</exception>
public static IntPtr GetWin32HandleKhx(this DeviceMemory memory, ExternalMemoryHandleTypesKhx handleType)
{
IntPtr handle;
Result result = vkGetMemoryWin32HandleKHX(memory.Parent, memory, handleType, &handle);
VulkanException.ThrowForInvalidResult(result);
return(handle);
}
/// <summary>
/// Get a POSIX file descriptor for a memory object.
/// </summary>
/// <param name="memory">The memory object from which the handle will be exported.</param>
/// <param name="handleType">The type of handle requested.</param>
/// <returns>A file descriptor representing the underlying resources of the device memory object.</returns>
/// <exception cref="VulkanException">Vulkan returns an error code.</exception>
public static int GetFdKhx(this DeviceMemory memory, ExternalMemoryHandleTypesKhx handleType)
{
int fd;
Result result = vkGetMemoryFdKHX(memory.Parent, memory, handleType, &fd);
VulkanException.ThrowForInvalidResult(result);
return(fd);
}
public void AddBias(CUDNNTensorDescriptor dstTensorDesc, Layer layer, int c, DeviceMemory <float> data)
{
_biasTensorDesc.Set4D(TensorFormat, DataType, 1, c, 1, 1);
const float alpha = 1.0f;
const float beta = 1.0f;
_cudnn.AddTensor(CUDNNInterop.cudnnAddMode_t.CUDNN_ADD_SAME_C, alpha, _biasTensorDesc, layer.BiasD.Ptr, beta, dstTensorDesc, data.Ptr);
}
public static void CopyToBufferMemory(this Device @this, byte[] source, DeviceMemory destinationBufferMemory, DeviceSize offset, DeviceSize size, uint mapFlags)
{
var mappedMemoryPointer = @this.MapMemory(destinationBufferMemory, offset, size, mapFlags);
Marshal.Copy(source, 0, mappedMemoryPointer, (int)(uint)size);
@this.UnmapMemory(destinationBufferMemory);
}
private void Release(DeviceMemory <byte> memory)
{
lock (_repo)
{
_repo.Add(memory);
_repo.Sort(MComp);
}
}
private void TearDown()
{
device.WaitIdle();
this.renderFinishedSemaphore.Dispose();
this.renderFinishedSemaphore = null;
this.imageAvailableSemaphore.Dispose();
this.imageAvailableSemaphore = null;
this.device.FreeMemory(this.vertexBufferMemory);
this.vertexBufferMemory = null;
this.vertexBuffer.Dispose();
this.vertexBuffer = null;
this.commandPool.Dispose();
this.commandPool = null;
foreach (var frameBuffer in this.frameBuffers)
{
frameBuffer.Dispose();
}
this.frameBuffers = null;
this.fragShader.Dispose();
this.fragShader = null;
this.vertShader.Dispose();
this.vertShader = null;
this.pipeline.Dispose();
this.pipeline = null;
this.pipelineLayout.Dispose();
this.pipelineLayout = null;
foreach (var imageView in this.swapChainImageViews)
{
imageView.Dispose();
}
this.swapChainImageViews = null;
this.renderPass.Dispose();
this.renderPass = null;
this.swapChain.Dispose();
this.swapChain = null;
this.device.Dispose();
this.device = null;
this.surface.Dispose();
this.surface = null;
this.instance.Dispose();
this.instance = null;
}
//[CudnnMnistFCF]
public void FullyConnectedForward(Layer ip, nchw_t nchw, DeviceMemory<float> srcData, ref DeviceMemory<float> dstData)
{
if (nchw.N != 1) throw new Exception("Not Implemented");
var dimX = nchw.C * nchw.H * nchw.W;
var dimY = ip.Outputs;
Resize(ref dstData, dimY);
const float alpha = 1.0f;
const float beta = 1.0f;
// This cuMemcpyDtoD is a raw CUDA API call so it should be guarded with worker.Eval
var output = dstData;
_worker.EvalAction(() => CUDAInterop.cuMemcpyDtoD(output.Ptr.Handle, ip.BiasD.Handle, (IntPtr)(dimY * sizeof(float))));
// This cublas call doesn't need worker.Eval because cublas is a thin wrapper for the raw API
// and it alreadyhas worke.eval
_cublas.Sgemv(CUBLASInterop.cublasOperation_t.CUBLAS_OP_T, dimX, dimY, alpha, ip.DataD.Ptr, dimX,
srcData.Ptr, 1, beta, dstData.Ptr, 1);
nchw.H = 1;
nchw.W = 1;
nchw.C = dimY;
}
public unsafe void BindImageMemory(Image image, DeviceMemory memory, ulong memoryOffset)
{
vkBindImageMemory(this, image, memory, memoryOffset).CheckError();
}
public unsafe void FreeMemory(DeviceMemory memory, AllocationCallbacks* allocator = null)
{
vkFreeMemory(this, memory, allocator);
}
public unsafe ulong GetMemoryCommitment(DeviceMemory memory)
{
ulong committedMemoryInBytes;
vkGetDeviceMemoryCommitment(this, memory, &committedMemoryInBytes);
return committedMemoryInBytes;
}
public unsafe IntPtr MapMemory(DeviceMemory memory, ulong offset, ulong size, MemoryMapFlags flags)
{
IntPtr data;
vkMapMemory(this, memory, offset, size, flags, &data).CheckError();
return data;
}
internal static unsafe extern Result vkBindImageMemory(Device device, Image image, DeviceMemory memory, ulong memoryOffset);
private void CreateVertexBuffer()
{
var vertices = new[,]
{
{ 0.0f, -0.5f, 0.5f, 1.0f, 0.0f, 0.0f },
{ 0.5f, 0.5f, 0.5f, 0.0f, 1.0f, 0.0f },
{ -0.5f, 0.5f, 0.5f, 0.0f, 0.0f, 1.0f },
};
var createInfo = new BufferCreateInfo
{
StructureType = StructureType.BufferCreateInfo,
Usage = BufferUsageFlags.VertexBuffer,
Size = (ulong)(sizeof(float) * vertices.Length)
};
vertexBuffer = device.CreateBuffer(ref createInfo);
MemoryRequirements memoryRequirements;
device.GetBufferMemoryRequirements(vertexBuffer, out memoryRequirements);
if (memoryRequirements.Size == 0)
return;
var allocateInfo = new MemoryAllocateInfo
{
StructureType = StructureType.MemoryAllocateInfo,
AllocationSize = memoryRequirements.Size,
MemoryTypeIndex = MemoryTypeFromProperties(memoryRequirements.MemoryTypeBits, MemoryPropertyFlags.HostVisible)
};
vertexBufferMemory = device.AllocateMemory(ref allocateInfo);
var mapped = device.MapMemory(vertexBufferMemory, 0, (ulong)createInfo.Size, MemoryMapFlags.None);
fixed (float* source = &vertices[0, 0]) Utilities.CopyMemory(mapped, new IntPtr(source), (int)createInfo.Size);
device.UnmapMemory(vertexBufferMemory);
device.BindBufferMemory(vertexBuffer, vertexBufferMemory, 0);
vertexAttributes = new []
{
new VertexInputAttributeDescription { Binding = 0, Location = 0, Format = Format.R32G32B32SFloat, Offset = 0 },
new VertexInputAttributeDescription { Binding = 0, Location = 1, Format = Format.R32G32B32SFloat, Offset = sizeof(float) * 3 },
};
vertexBindings = new []
{
new VertexInputBindingDescription { Binding = 0, InputRate = VertexInputRate.Vertex, Stride = (uint)(sizeof(float) * vertices.GetLength(1)) }
};
}
internal static unsafe extern void vkUnmapMemory(Device device, DeviceMemory memory);
public void Resize(ref DeviceMemory<float> buffer, int length)
{
if (buffer.Length >= length) return;
buffer.Dispose();
buffer = _worker.Malloc<float>(length);
}
//[/CudnnMnistSF]
//[CudnnMnistAF]
public void ActivationForward(nchw_t nchw, DeviceMemory<float> srcData, ref DeviceMemory<float> dstData)
{
Resize(ref dstData, nchw.N * nchw.C * nchw.H * nchw.W);
_srcTensorDesc.Set4D(TensorFormat, DataType, nchw.N, nchw.C, nchw.H, nchw.W);
_dstTensorDesc.Set4D(TensorFormat, DataType, nchw.N, nchw.C, nchw.H, nchw.W);
const float alpha = 1.0f;
const float beta = 0.0f;
_cudnn.ActivationForward(CUDNNInterop.cudnnActivationMode_t.CUDNN_ACTIVATION_RELU, alpha, _srcTensorDesc, srcData.Ptr, beta, _dstTensorDesc, dstData.Ptr);
}
//[/CudnnMnistPF]
//[CudnnMnistSF]
public void SoftmaxForward(nchw_t nchw, DeviceMemory<float> srcData, ref DeviceMemory<float> dstData)
{
Resize(ref dstData, nchw.N * nchw.C * nchw.H * nchw.W);
_srcTensorDesc.Set4D(TensorFormat, DataType, nchw.N, nchw.C, nchw.H, nchw.W);
_dstTensorDesc.Set4D(TensorFormat, DataType, nchw.N, nchw.C, nchw.H, nchw.W);
const float alpha = 1.0f;
const float beta = 0.0f;
_cudnn.SoftmaxForward(CUDNNInterop.cudnnSoftmaxAlgorithm_t.CUDNN_SOFTMAX_ACCURATE, CUDNNInterop.cudnnSoftmaxMode_t.CUDNN_SOFTMAX_MODE_CHANNEL, alpha, _srcTensorDesc, srcData.Ptr, beta, _dstTensorDesc, dstData.Ptr);
}
//[/CudnnMnistCF]
//[CudnnMnistPF]
public void PoolForward(nchw_t nchw, DeviceMemory<float> srcData, ref DeviceMemory<float> dstData)
{
_poolingDesc.Set2D(CUDNNInterop.cudnnPoolingMode_t.CUDNN_POOLING_MAX, 2, 2, 0, 0, 2, 2);
_srcTensorDesc.Set4D(TensorFormat, DataType, nchw.N, nchw.C, nchw.H, nchw.W);
nchw.H /= 2;
nchw.W /= 2;
_dstTensorDesc.Set4D(TensorFormat, DataType, nchw.N, nchw.C, nchw.H, nchw.W);
Resize(ref dstData, nchw.N * nchw.C * nchw.H * nchw.W);
const float alpha = 1.0f;
const float beta = 0.0f;
_cudnn.PoolingForward(_poolingDesc, alpha, _srcTensorDesc, srcData.Ptr, beta, _dstTensorDesc, dstData.Ptr);
}
//[/CudnnMnistFCF]
//[CudnnMnistCF]
public void ConvoluteForward(Layer conv, nchw_t nchw, DeviceMemory<float> srcData, ref DeviceMemory<float> dstData)
{
_srcTensorDesc.Set4D(TensorFormat, DataType, nchw.N, nchw.C, nchw.H, nchw.W);
_filterDesc.Set4D(DataType, conv.Outputs, conv.Inputs, conv.KernelDim, conv.KernelDim);
_convDesc.Set2D(0, 0, 1, 1, 1, 1, CUDNNInterop.cudnnConvolutionMode_t.CUDNN_CROSS_CORRELATION);
// find dimension of convoltion output
// outputDim = 1 + (inputDim + 2*pad - filterDim) / convolutionStride
int n, c, h, w;
_convDesc.Get2DForwardOutputDim(_srcTensorDesc, _filterDesc, out n, out c, out h, out w);
nchw.N = n;
nchw.C = c;
nchw.H = h;
nchw.W = w;
_dstTensorDesc.Set4D(TensorFormat, DataType, nchw.N, nchw.C, nchw.H, nchw.W);
var algo = _cudnn.GetConvolutionForwardAlgorithm(_srcTensorDesc, _filterDesc, _convDesc, _dstTensorDesc,
CUDNNInterop.cudnnConvolutionFwdPreference_t.CUDNN_CONVOLUTION_FWD_PREFER_FASTEST, (IntPtr)0);
Resize(ref dstData, nchw.N * nchw.C * nchw.H * nchw.W);
var sizeInBytes = _cudnn.GetConvolutionForwardWorkspaceSize(_srcTensorDesc, _filterDesc, _convDesc, _dstTensorDesc, algo);
using (var workSpace = _worker.Malloc<byte>(sizeInBytes.ToInt32()))
{
const float alpha = 1.0f;
const float beta = 0.0f;
_cudnn.ConvolutionForward(alpha, _srcTensorDesc, srcData.Ptr, _filterDesc, conv.DataD.Ptr, _convDesc, algo, workSpace.Ptr, sizeInBytes, beta, _dstTensorDesc, dstData.Ptr);
AddBias(_dstTensorDesc, conv, c, dstData);
}
}
internal static unsafe extern Result vkBindBufferMemory(Device device, Buffer buffer, DeviceMemory memory, ulong memoryOffset);
public unsafe void BindBufferMemory(Buffer buffer, DeviceMemory memory, ulong memoryOffset)
{
vkBindBufferMemory(this, buffer, memory, memoryOffset).CheckError();
}
//[/LockPositions]
public SimWindow() : base(800, 600, GraphicsMode.Default, "Gravitational n-body simulation")
{
_numBodies = 256*64;
const float clusterScale = 1.0f;
const float velocityScale = 1.0f;
_deltaTime = 0.001f;
_softeningSquared = 0.00125f;
_damping = 0.9995f;
//[CreateWorker]
_worker = Worker.CreateByFunc(Generate);
//[/CreateWorker]
_stopwatch = Stopwatch.StartNew();
_fpsCalcLag = 128;
_frameCounter = 0;
//[CreateSimulatros]
_simulators = new Queue<ISimulator>();
var target = GPUModuleTarget.Worker(_worker);
var simulatorGpuDynamicBlockSizeModule = new GpuDynamicSimulatorModule(target); // need dispose
var simulatorGpuDynamicBlockSize64 = simulatorGpuDynamicBlockSizeModule.Create(64);
var simulatorGpuDynamicBlockSize128 = simulatorGpuDynamicBlockSizeModule.Create(128);
var simulatorGpuDynamicBlockSize256 = simulatorGpuDynamicBlockSizeModule.Create(256);
var simulatorGpuDynamicBlockSize512 = simulatorGpuDynamicBlockSizeModule.Create(512);
var simulatorGpuStaticBlockSizeModule64 = new GpuStaticSimulatorModule64(target); // need dispose
var simulatorGpuStaticBlockSizeModule128 = new GpuStaticSimulatorModule128(target); // need dispose
var simulatorGpuStaticBlockSizeModule256 = new GpuStaticSimulatorModule256(target); // need dispose
var simulatorGpuStaticBlockSizeModule512 = new GpuStaticSimulatorModule512(target); // need dispose
// First, enquene one simulator which is 256 blocksize so we can compare with C code for performance.
_simulators.Enqueue(simulatorGpuStaticBlockSizeModule256);
// Enqueue several dynamic block size simulators.
_simulators.Enqueue(simulatorGpuDynamicBlockSize64);
_simulators.Enqueue(simulatorGpuDynamicBlockSize128);
_simulators.Enqueue(simulatorGpuDynamicBlockSize256);
_simulators.Enqueue(simulatorGpuDynamicBlockSize512);
// Enqueue several static block size simulators.
_simulators.Enqueue(simulatorGpuStaticBlockSizeModule64);
_simulators.Enqueue(simulatorGpuStaticBlockSizeModule128);
_simulators.Enqueue(simulatorGpuStaticBlockSizeModule256);
_simulators.Enqueue(simulatorGpuStaticBlockSizeModule512);
// We do not enqueue any cpu simulator as it is much too slow.
//_simulators.Enqueue(new CpuSimulator(_worker, _numBodies));
_disposeSimulators = () =>
{
simulatorGpuDynamicBlockSizeModule.Dispose();
simulatorGpuStaticBlockSizeModule64.Dispose();
simulatorGpuStaticBlockSizeModule128.Dispose();
simulatorGpuStaticBlockSizeModule256.Dispose();
simulatorGpuStaticBlockSizeModule512.Dispose();
};
_simulator = _simulators.Dequeue();
//[/CreateSimulatros]
//[CreateBuffers]
_buffers = new uint[2];
for (var i = 0; i < _buffers.Length; i++)
{
_buffers[i] = 0;
}
GL.GenBuffers(_buffers.Length, _buffers);
foreach (var buffer in _buffers)
{
GL.BindBuffer(BufferTarget.ArrayBuffer, buffer);
GL.BufferData(BufferTarget.ArrayBuffer,
(IntPtr) (Microsoft.FSharp.Core.Operators.SizeOf<float4>()*_numBodies),
IntPtr.Zero, BufferUsageHint.DynamicDraw);
var size = 0;
unsafe
{
GL.GetBufferParameter(BufferTarget.ArrayBuffer, BufferParameterName.BufferSize, &size);
}
if (size != Microsoft.FSharp.Core.Operators.SizeOf<float4>()*_numBodies)
{
throw new Exception("Pixel Buffer Object allocation failed!");
}
GL.BindBuffer(BufferTarget.ArrayBuffer, 0);
CUDAInterop.cuSafeCall(CUDAInterop.cuGLRegisterBufferObject(buffer));
}
_resources = new IntPtr[_buffers.Length];
for (var i = 0; i < _buffers.Length; i++)
{
var res = IntPtr.Zero;
unsafe
{
CUDAInterop.cuSafeCall(CUDAInterop.cuGraphicsGLRegisterBuffer(&res, _buffers[i], 0u));
}
_resources[i] = res;
}
//[/CreateBuffers]
//[FinalizeGL]
_vel = _worker.Malloc<float4>(_numBodies);
float4[] hpos, hvel;
BodyInitializer.Initialize(new BodyInitializer3(), clusterScale, velocityScale, _numBodies,
out hpos, out hvel);
_worker.Scatter(hvel, _vel.Ptr, Microsoft.FSharp.Core.FSharpOption<int>.None,
Microsoft.FSharp.Core.FSharpOption<int>.None);
LockPos(
(pos0, pos1) =>
_worker.Scatter(hpos, pos1, Microsoft.FSharp.Core.FSharpOption<int>.None,
Microsoft.FSharp.Core.FSharpOption<int>.None));
Help();
Description();
//[/FinalizeGL]
}
internal static unsafe extern Result vkAllocateMemory(Device device, MemoryAllocateInfo* allocateInfo, AllocationCallbacks* allocator, DeviceMemory* memory);
internal static unsafe extern Result vkMapMemory(Device device, DeviceMemory memory, ulong offset, ulong size, MemoryMapFlags flags, IntPtr* data);
public unsafe void UnmapMemory(DeviceMemory memory)
{
vkUnmapMemory(this, memory);
}
internal static unsafe extern void vkFreeMemory(Device device, DeviceMemory memory, AllocationCallbacks* allocator);
internal static unsafe extern void vkGetDeviceMemoryCommitment(Device device, DeviceMemory memory, ulong* committedMemoryInBytes);