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See more: C performance GPGPU cpu
I have cluster of 3 nodes and each node has a quad core cpu and a GPU
 
why does the performance degrade when i increase number of mpi tasks.
and cpu performs better than gpu when number of tasks are increased.
 
Is it because of scheduling capability of cpus ?
I am guessing that gpu execution becomes serial as more number of tasks wait for resources.
 
Is my understanding correct?
 
It would be great help if u can provide some inputs
 
Thanks
Posted 16-May-12 19:16pm
(unknown member)
Edited 16-May-12 19:17pm
v2

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