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spmd performance

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Aseman
Aseman 2011-10-19
Hi I run a spmd in matlab,and I send an array to all workers before spmd and distribute another array in smpd but my problem is: when my array is large, speedup dosent exist however my workers dont need any comunication by each other but as I increase number of cluster's node, Speed up decrease. thanks in advance

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回答（1 个）

Jill Reese
Jill Reese 2011-10-20
Azam,
Could you actually post a bit of code? It would be a lot easier to make suggestions that way.
Best,
Jill
  2 个评论
Aseman
Aseman 2011-10-23
Hi,Jill
I found my mistake I wasnot sent all data to workers and they were read them in every iteration in loop. I sent all before loop and it worked.
Thanks for your attention
sam
sam 2012-9-15
Aseman how did u send the data

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