Uses of Class
ai.rapids.cudf.BaseDeviceMemoryBuffer

Packages that use BaseDeviceMemoryBuffer

Package	Description
ai.rapids.cudf
ai.rapids.cudf.nvcomp

Uses of BaseDeviceMemoryBuffer in ai.rapids.cudf

Subclasses of BaseDeviceMemoryBuffer in ai.rapids.cudf

Modifier and Type	Class and Description
class	CuFileBuffer Represents a cuFile buffer.
class	DeviceMemoryBuffer This class represents data in some form on the GPU.
class	DeviceMemoryBufferView This class represents data in some form on the GPU.

Methods in ai.rapids.cudf that return BaseDeviceMemoryBuffer

Modifier and Type	Method and Description
BaseDeviceMemoryBuffer	ColumnVector.OffHeapState.getData()
BaseDeviceMemoryBuffer	ColumnView.getData() Gets the data buffer for the current column view (viewHandle).
BaseDeviceMemoryBuffer	ColumnVector.getDeviceBufferFor(BufferType type) Get access to the raw device buffer for this column.
BaseDeviceMemoryBuffer	ColumnVector.OffHeapState.getOffsets()
BaseDeviceMemoryBuffer	ColumnView.getOffsets()
BaseDeviceMemoryBuffer	ColumnVector.OffHeapState.getValid()
BaseDeviceMemoryBuffer	ColumnView.getValid()

Methods in ai.rapids.cudf with parameters of type BaseDeviceMemoryBuffer

Modifier and Type	Method and Description
static long	CuFile.appendDeviceBufferToFile(File path, BaseDeviceMemoryBuffer buffer) Append a device buffer to a given file path synchronously.
void	HostMemoryBuffer.copyFromDeviceBuffer(BaseDeviceMemoryBuffer deviceMemoryBuffer) Synchronously copy from a DeviceMemoryBuffer to a HostMemoryBuffer
void	HostMemoryBuffer.copyFromDeviceBuffer(BaseDeviceMemoryBuffer deviceMemoryBuffer, Cuda.Stream stream) Copy from a DeviceMemoryBuffer to a HostMemoryBuffer using the specified stream.
void	HostMemoryBuffer.copyFromDeviceBufferAsync(BaseDeviceMemoryBuffer deviceMemoryBuffer, Cuda.Stream stream) Copy from a DeviceMemoryBuffer to a HostMemoryBuffer using the specified stream.
void	BaseDeviceMemoryBuffer.copyFromDeviceBufferAsync(long destOffset, BaseDeviceMemoryBuffer src, long srcOffset, long length, Cuda.Stream stream) Copy a subset of src to this buffer starting at destOffset using the specified CUDA stream.
static ColumnView	ColumnView.fromDeviceBuffer(BaseDeviceMemoryBuffer buffer, long startOffset, DType type, int rows) Create a new column view from a raw device buffer.
static void	CuFile.readFileToDeviceBuffer(BaseDeviceMemoryBuffer buffer, File path, long fileOffset) Read a file into a device buffer synchronously.
static void	CuFile.writeDeviceBufferToFile(File path, long file_offset, BaseDeviceMemoryBuffer buffer) Write a device buffer to a given file path synchronously.

Constructors in ai.rapids.cudf with parameters of type BaseDeviceMemoryBuffer

Constructor and Description
ColumnView(DType type, long rows, Optional<Long> nullCount, BaseDeviceMemoryBuffer dataBuffer, BaseDeviceMemoryBuffer validityBuffer) Create a new column view based off of data already on the device.
ColumnView(DType type, long rows, Optional<Long> nullCount, BaseDeviceMemoryBuffer validityBuffer, BaseDeviceMemoryBuffer offsetBuffer, ColumnView[] children) Create a new column view based off of data already on the device.

Uses of BaseDeviceMemoryBuffer in ai.rapids.cudf.nvcomp

Methods in ai.rapids.cudf.nvcomp with parameters of type BaseDeviceMemoryBuffer

Modifier and Type	Method and Description
static BatchedLZ4Compressor.BatchedCompressionResult	BatchedLZ4Compressor.compress(BaseDeviceMemoryBuffer[] inputs, long chunkSize, Cuda.Stream stream) Compress a batch of buffers with LZ4
static long	LZ4Compressor.compress(BaseDeviceMemoryBuffer input, CompressionType inputType, long chunkSize, BaseDeviceMemoryBuffer tempBuffer, BaseDeviceMemoryBuffer output, Cuda.Stream stream) Compress a buffer with LZ4.
static void	BatchedLZ4Compressor.compressAsync(HostMemoryBuffer compressedSizesOutputBuffer, BaseDeviceMemoryBuffer[] inputs, long chunkSize, BaseDeviceMemoryBuffer tempBuffer, BaseDeviceMemoryBuffer[] outputs, Cuda.Stream stream) Asynchronously compress a batch of input buffers.
static void	BatchedLZ4Compressor.compressAsync(HostMemoryBuffer compressedSizesOutputBuffer, BaseDeviceMemoryBuffer[] inputs, long chunkSize, BaseDeviceMemoryBuffer tempBuffer, BaseDeviceMemoryBuffer[] outputs, Cuda.Stream stream) Asynchronously compress a batch of input buffers.
static void	BatchedLZ4Compressor.compressAsync(HostMemoryBuffer compressedSizesOutputBuffer, BaseDeviceMemoryBuffer[] inputs, long chunkSize, BaseDeviceMemoryBuffer tempBuffer, BaseDeviceMemoryBuffer[] outputs, Cuda.Stream stream) Asynchronously compress a batch of input buffers.
static void	LZ4Compressor.compressAsync(HostMemoryBuffer compressedSizeOutputBuffer, BaseDeviceMemoryBuffer input, CompressionType inputType, long chunkSize, BaseDeviceMemoryBuffer tempBuffer, BaseDeviceMemoryBuffer output, Cuda.Stream stream) Asynchronously compress a buffer with LZ4.
static void	BatchedLZ4Decompressor.decompressAsync(BaseDeviceMemoryBuffer[] inputs, BaseDeviceMemoryBuffer tempBuffer, BatchedLZ4Decompressor.BatchedMetadata metadata, BaseDeviceMemoryBuffer[] outputs, Cuda.Stream stream) Asynchronously decompress a batch of buffers
static void	BatchedLZ4Decompressor.decompressAsync(BaseDeviceMemoryBuffer[] inputs, BaseDeviceMemoryBuffer tempBuffer, BatchedLZ4Decompressor.BatchedMetadata metadata, BaseDeviceMemoryBuffer[] outputs, Cuda.Stream stream) Asynchronously decompress a batch of buffers
static void	BatchedLZ4Decompressor.decompressAsync(BaseDeviceMemoryBuffer[] inputs, BaseDeviceMemoryBuffer tempBuffer, BatchedLZ4Decompressor.BatchedMetadata metadata, BaseDeviceMemoryBuffer[] outputs, Cuda.Stream stream) Asynchronously decompress a batch of buffers
static DeviceMemoryBuffer[]	BatchedLZ4Decompressor.decompressAsync(BaseDeviceMemoryBuffer[] inputs, Cuda.Stream stream) Asynchronously decompress a batch of buffers
static void	Decompressor.decompressAsync(BaseDeviceMemoryBuffer input, BaseDeviceMemoryBuffer tempBuffer, Decompressor.Metadata metadata, BaseDeviceMemoryBuffer output, Cuda.Stream stream) Asynchronously decompress a buffer.
static BatchedLZ4Decompressor.BatchedMetadata	BatchedLZ4Decompressor.getMetadata(BaseDeviceMemoryBuffer[] inputs, Cuda.Stream stream) Get the metadata associated with a batch of compressed buffers
static Decompressor.Metadata	Decompressor.getMetadata(BaseDeviceMemoryBuffer buffer, Cuda.Stream stream) Get the metadata associated with a compressed buffer
static long	LZ4Compressor.getOutputSize(BaseDeviceMemoryBuffer input, CompressionType inputType, long chunkSize, BaseDeviceMemoryBuffer tempBuffer) Calculate the amount of output storage space required to compress a buffer.
static long[]	BatchedLZ4Compressor.getOutputSizes(BaseDeviceMemoryBuffer[] inputs, long chunkSize, BaseDeviceMemoryBuffer tempBuffer) Get the amount of output storage space required to compress a batch of buffers.
static long[]	BatchedLZ4Compressor.getOutputSizes(BaseDeviceMemoryBuffer[] inputs, long chunkSize, BaseDeviceMemoryBuffer tempBuffer) Get the amount of output storage space required to compress a batch of buffers.
static long	BatchedLZ4Compressor.getTempSize(BaseDeviceMemoryBuffer[] inputs, long chunkSize) Get the amount of temporary storage space required to compress a batch of buffers.
static long	LZ4Compressor.getTempSize(BaseDeviceMemoryBuffer input, CompressionType inputType, long chunkSize) Calculate the amount of temporary storage space required to compress a buffer.
static boolean	Decompressor.isLZ4Data(BaseDeviceMemoryBuffer buffer) Determine if a buffer is data compressed with LZ4.