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Computation版 - Prefix reduction and MPI_Reduce
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相关话题的讨论汇总
话题: mpi话题: prefix话题: reduce话题: reduction话题: what
进入Computation版参与讨论
1 (共1页)
vi
发帖数: 309
1
What's the difference between the two?
Looks that they support the same set of operations with same restrictions.
b**g
发帖数: 335
2
不完全一样
两者实现的算法也不同
MPI_Scan绝对是线性的
MPI_Reduce可用binomial tree或Rabenseifner算法实现,速度较快

【在 vi 的大作中提到】
: What's the difference between the two?
: Looks that they support the same set of operations with same restrictions.

vi
发帖数: 309
3
Thank you, but what do you mean by 'linear'?
MPI_Scan is prefix_sum, should be very easily parallized?

【在 b**g 的大作中提到】
: 不完全一样
: 两者实现的算法也不同
: MPI_Scan绝对是线性的
: MPI_Reduce可用binomial tree或Rabenseifner算法实现,速度较快

1 (共1页)
进入Computation版参与讨论
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[转载] 裸泳请教matlab高手 ^_^P P C L Beowulf计算机群测试报告
大家为什么用beowulf?并行的算法
大家用什么做平行计算mpi_gather
any body debugged MPI programms?大家作并行计算的时候都是怎么作load balancing的?
相关话题的讨论汇总
话题: mpi话题: prefix话题: reduce话题: reduction话题: what