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Profiling the matrix multiplication

 
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adityak



Joined: 19 Mar 2007
Posts: 10

PostPosted: Mon Mar 26, 2007 11:18 am    Post subject: Profiling the matrix multiplication Reply with quote

How exactly do I interpret the profiling information given by running the matrix multiplication sample examples? I mean, how does the MFLOPS result correspond with the time taken for exectuion in ms?
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mkcolg



Joined: 30 Jun 2004
Posts: 6208
Location: The Portland Group Inc.

PostPosted: Mon Mar 26, 2007 4:10 pm    Post subject: Reply with quote

Hi adityak,

MFLOPS is throughput metric describing the amount of work that can be performed in a given time period. Since profiling always involves some overhead (some methods more than others), I would expect the MFLOPS to lower in the case of MATMUL.

Note that profiling is best used for finding relative performance between different parts of your code not for overall performance.

- Mat
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