Package ai.djl.ml.xgboost

Class XgbNDManager

java.lang.Object
ai.djl.ndarray.BaseNDManager
ai.djl.ml.xgboost.XgbNDManager
All Implemented Interfaces:
ai.djl.ndarray.NDManager, AutoCloseable
public class XgbNDManager extends ai.djl.ndarray.BaseNDManager
XgbNDManager is the XGBoost implementation of NDManager.

  • Nested Class Summary

    Nested classes/interfaces inherited from class ai.djl.ndarray.BaseNDManager

    ai.djl.ndarray.BaseNDManager.TempResource

    Nested classes/interfaces inherited from interface ai.djl.ndarray.NDManager

    ai.djl.ndarray.NDManager.SystemNDManager

  • Field Summary

    Fields inherited from class ai.djl.ndarray.BaseNDManager

    alternativeManager, capped, closed, device, name, parent, resources, tempResources, uid

    Fields inherited from interface ai.djl.ndarray.NDManager

    UID_GENERATOR

  • Method Summary

    Modifier and Type
    Method
    Description
    ByteBuffer
    allocateDirect(int capacity)
    void
    close()
    ai.djl.ndarray.NDArray
    create(Buffer data, ai.djl.ndarray.types.Shape shape, ai.djl.ndarray.types.DataType dataType)
    ai.djl.ndarray.NDArray
    create(ml.dmlc.xgboost4j.java.ColumnBatch columnBatch, float missing, int nthread)
    Creates XgbNDArray from column array interface.
    ai.djl.ndarray.NDArray
    createCSR(Buffer buffer, long[] indptr, long[] indices, ai.djl.ndarray.types.Shape shape)
    XgbNDArray
    from(ai.djl.ndarray.NDArray array)
    ai.djl.engine.Engine
    getEngine()
    ai.djl.ndarray.NDManager
    newSubManager(ai.djl.Device device)
    void
    setMissingValue(float missingValue)
    Sets the default missing value.
    void
    setNthread(int nthread)
    Sets the default number of threads.

    Methods inherited from class ai.djl.ndarray.BaseNDManager

    arange, attachInternal, attachUncappedInternal, cap, copyBuffer, create, create, createCoo, createRowSparse, debugDump, defaultDevice, detachInternal, eye, full, getDevice, getManagedArrays, getName, getParentManager, invoke, invoke, isOpen, linspace, load, newSubManager, randomInteger, randomMultinomial, randomMultinomial, randomNormal, randomPermutation, randomUniform, sampleGamma, sampleGamma, sampleNormal, sampleNormal, samplePoisson, samplePoisson, setName, tempAttachInternal, toString, truncatedNormal, validateBuffer

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

    Methods inherited from interface ai.djl.ndarray.NDManager

    arange, arange, arange, arange, arange, arange, arange, arange, attachAll, create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, create, createCSR, createCSR, createRowSparse, decode, decode, eye, eye, eye, eye, full, full, full, hanningWindow, linspace, linspace, linspace, linspace, load, ones, ones, ones, randomNormal, randomNormal, randomNormal, randomUniform, randomUniform, ret, tempAttachAll, truncatedNormal, truncatedNormal, truncatedNormal, zeros, zeros, zeros

  • Method Details

    • setMissingValue

      public void setMissingValue(float missingValue)
      Sets the default missing value.
      Parameters:
      missingValue - the default missing value

    • setNthread

      public void setNthread(int nthread)
      Sets the default number of threads.
      Parameters:
      nthread - the default number of threads

    • allocateDirect

      public ByteBuffer allocateDirect(int capacity)

    • from

      public XgbNDArray from(ai.djl.ndarray.NDArray array)

    • newSubManager

      public ai.djl.ndarray.NDManager newSubManager(ai.djl.Device device)

    • getEngine

      public ai.djl.engine.Engine getEngine()

    • create

      public ai.djl.ndarray.NDArray create(ml.dmlc.xgboost4j.java.ColumnBatch columnBatch, float missing, int nthread)
      Creates XgbNDArray from column array interface.
      Parameters:
      columnBatch - – the XGBoost ColumnBatch to provide the cuda array interface of feature columns
      missing - – missing value
      nthread - – threads number
      Returns:
      a new instance of NDArray

    • create

      public ai.djl.ndarray.NDArray create(Buffer data, ai.djl.ndarray.types.Shape shape, ai.djl.ndarray.types.DataType dataType)

    • createCSR

      public ai.djl.ndarray.NDArray createCSR(Buffer buffer, long[] indptr, long[] indices, ai.djl.ndarray.types.Shape shape)
      Specified by:
      createCSR in interface ai.djl.ndarray.NDManager
      Overrides:
      createCSR in class ai.djl.ndarray.BaseNDManager

    • close

      public void close()
      Specified by:
      close in interface AutoCloseable
      Specified by:
      close in interface ai.djl.ndarray.NDManager
      Overrides:
      close in class ai.djl.ndarray.BaseNDManager