Package org.apache.sysds.runtime.controlprogram.parfor

Class TaskPartitioner

java.lang.Object
org.apache.sysds.runtime.controlprogram.parfor.TaskPartitioner
Direct Known Subclasses:
TaskPartitionerFactoring, TaskPartitionerFixedsize
public abstract class TaskPartitioner extends Object
This is the base class for all task partitioner. For this purpose it stores relevant information such as the loop specification (FROM, TO, INCR), the index variable and the task size. Furthermore, it declares two prototypes: (1) full task creation, (2) streaming task creation. Known implementation classes: TaskPartitionerFixedsize, TaskPartitionerFactoring

  • Method Details

    • createTasks

      public abstract List<Task> createTasks()
      Creates and returns set of all tasks for given problem at once.
      Returns:
      list of tasks

    • createTasks

      public abstract long createTasks(LocalTaskQueue<Task> queue)
      Creates set of all tasks for given problem, but streams them directly into task queue. This allows for more tasks than fitting in main memory.
      Parameters:
      queue - queue of takss
      Returns:
      ?

    • getNumIterations

      public long getNumIterations()