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HW 11 Results

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xiudongwu

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Unread post Mon Dec 14, 2015 9:27 pm

Re: HW 11 Results

Problem 3:
1 node, 1 core: 0.261182 seconds
1 node, 4 cores: 0.067781 seconds
1 node, 8 cores: 0.054192 seconds
2 nodes, 4 cores: 0.052826 seconds
4 nodes, 2 cores: 0.062646 seconds
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xiudongwu

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Posts: 15

Joined: Fri Sep 04, 2015 12:51 pm

Unread post Mon Dec 14, 2015 9:28 pm

Re: HW 11 Results

Problem 4:
Max array size handled: 268000000(when exceed this limit, GPU will face up with the problem to allocate memory on deivce)
CUDA Implementation: 454.34744ms
Handcrafted implementation (NP=2*2=4): 631.762 ms
MPI_Reduce (NP=2*4=8): 6218.667 ms
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