使用 PyPar 模块进行并行化

PyPar 是一个使用消息传递接口（MPI）在 Python 中提供并行性的库。PyPar 中的一个简单示例（如 https://github.com/daleroberts/pypar 所示） 如下所示：

import pypar as pp

ncpus = pp.size()
rank = pp.rank()
node = pp.get_processor_name()

print 'I am rank %d of %d on node %s' % (rank, ncpus, node)

if rank == 0:
  msh = 'P0'
  pp.send(msg, destination=1)
  msg = pp.receive(source=rank-1)
  print 'Processor 0 received message "%s" from rank %d' % (msg, rank-1)
else:
  source = rank-1
  destination = (rank+1) % ncpus
  msg = pp.receive(source)
  msg = msg + 'P' + str(rank)
  pypar.send(msg, destination)
pp.finalize()