Uses of Class
ai.rapids.cudf.HostMemoryBuffer

Uses of HostMemoryBuffer in ai.rapids.cudf

Fields in ai.rapids.cudf declared as HostMemoryBuffer

Modifier and Type	Field and Description
HostMemoryBuffer	HostColumnVector.OffHeapState.data
HostMemoryBuffer	HostColumnVector.OffHeapState.offsets
HostMemoryBuffer	HostColumnVector.OffHeapState.valid

Methods in ai.rapids.cudf that return HostMemoryBuffer

Modifier and Type	Method and Description
static HostMemoryBuffer	HostMemoryBuffer.allocate(long bytes) Allocate memory, but be sure to close the returned buffer to avoid memory leaks.
static HostMemoryBuffer	PinnedMemoryPool.allocate(long bytes) Factory method to create a host buffer but preferably pointing to pinned memory.
static HostMemoryBuffer	HostMemoryBuffer.allocate(long bytes, boolean preferPinned) Allocate memory, but be sure to close the returned buffer to avoid memory leaks.
HostMemoryBuffer	HostColumnVector.getHostBufferFor(BufferType type) Get access to the raw host buffer for this column.
static HostMemoryBuffer	HostMemoryBuffer.mapFile(File path, FileChannel.MapMode mode, long offset, long length) Create a host buffer that is memory-mapped to a file.
HostMemoryBuffer	HostMemoryBuffer.slice(long offset, long len) Slice off a part of the host buffer.
HostMemoryBuffer	HostMemoryBuffer.sliceWithCopy(long offset, long len) Slice off a part of the host buffer, actually making a copy of the data.
static HostMemoryBuffer	PinnedMemoryPool.tryAllocate(long bytes) Factory method to create a pinned host memory buffer.

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

Modifier and Type	Method and Description
void	BaseDeviceMemoryBuffer.copyFromHostBuffer(HostMemoryBuffer src) Copy everything from src to this buffer starting at the beginning of this buffer.
void	BaseDeviceMemoryBuffer.copyFromHostBuffer(HostMemoryBuffer src, Cuda.Stream stream) Copy entire host buffer starting at the beginning of this buffer using a CUDA stream.
void	BaseDeviceMemoryBuffer.copyFromHostBuffer(HostMemoryBuffer src, long srcOffset, long length) Copy a subset of src to this buffer starting at the beginning of this.
void	BaseDeviceMemoryBuffer.copyFromHostBuffer(long destOffset, HostMemoryBuffer src, long srcOffset, long length) Copy a subset of src to this buffer starting at destOffset.
void	HostMemoryBuffer.copyFromHostBuffer(long destOffset, HostMemoryBuffer srcData, long srcOffset, long length) Copy the contents of the given buffer to this buffer
void	BaseDeviceMemoryBuffer.copyFromHostBuffer(long destOffset, HostMemoryBuffer src, long srcOffset, long length, Cuda.Stream stream) Copy a subset of src to this buffer starting at destOffset using the specified CUDA stream.
void	BaseDeviceMemoryBuffer.copyFromHostBufferAsync(HostMemoryBuffer src, Cuda.Stream stream) Copy entire host buffer starting at the beginning of this buffer using a CUDA stream.
void	BaseDeviceMemoryBuffer.copyFromHostBufferAsync(long destOffset, HostMemoryBuffer src, long srcOffset, long length, Cuda.Stream stream) Copy a subset of src to this buffer starting at destOffset using the specified CUDA stream.
void	HostBufferConsumer.handleBuffer(HostMemoryBuffer buffer, long len) Consume a buffer.
static Table	JCudfSerialization.readAndConcat(JCudfSerialization.SerializedTableHeader[] headers, HostMemoryBuffer[] dataBuffers)
static Table	Table.readCSV(Schema schema, CSVOptions opts, HostMemoryBuffer buffer, long offset, long len) Read CSV formatted data.
static Table	Table.readORC(ORCOptions opts, HostMemoryBuffer buffer, long offset, long len) Read ORC formatted data.
static Table	Table.readParquet(ParquetOptions opts, HostMemoryBuffer buffer, long offset, long len) Read parquet formatted data.
static JCudfSerialization.TableAndRowCountPair	JCudfSerialization.readTableFrom(JCudfSerialization.SerializedTableHeader header, HostMemoryBuffer hostBuffer)
static void	JCudfSerialization.readTableIntoBuffer(InputStream in, JCudfSerialization.SerializedTableHeader header, HostMemoryBuffer buffer) After reading a header for a table read the data portion into a host side buffer.
static void	JCudfSerialization.writeConcatedStream(JCudfSerialization.SerializedTableHeader[] headers, HostMemoryBuffer[] dataBuffers, OutputStream out) Take the data from multiple batches stored in the parsed headers and the dataBuffer and write it out to out as if it were a single buffer.