manyParallel.py

"""
    Copyright 2025 Huawei Technologies Co., Ltd.
 
  Licensed under the Apache License, Version 2.0 (the "License")
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at
 
      http://www.apache.org/licenses/LICENSE-2.0
 
  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
"""

import time
import taskr

def manyParallel(runtime, branchCount, taskCount):
  # Creating the execution units (functions that the tasks will run)
  taskfc = taskr.Function(lambda task : None)

  # Initializing taskr
  runtime.initialize()

  # Store a pointer to the previous task to generate a long chain
  prevTask = None

  # Each run consists of several iterations of ABC
  for b in range(branchCount):
    for i in range(taskCount):
      task = taskr.Task(b * taskCount + i, taskfc)

      # Creating dependencies
      if i > 0: task.addDependency(prevTask)

      # Adding to taskr
      runtime.addTask(task)

      # Setting as new previous task
      prevTask = task

  # Running taskr for the current repetition
  startTime = time.time()
  runtime.run()
  runtime.wait()
  endTime = time.time()
  computeTime = endTime - startTime
  print(f"Running Time: {computeTime:0.5f}s")

  # Finalizing taskr
  runtime.finalize()