Hello,
I want to measure the performance for the cholesky decomposition using dpotrf using C.
Can anyone tell me how can I calculate the flops for dpotrf. Or atleast how many flops are required for one dpotrf call.
BuggedUp BuggedUp BuggedUp
Performance measurement for BLAS 3 sub-routine
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Performance measurement for BLAS 3 sub-routine
by buggedup » Wed Jan 26, 2011 1:48 pm
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Re: Performance measurement for BLAS 3 sub-routine
by admin » Wed Jan 26, 2011 2:06 pm
Flops can be found on LAWN 41 page 120
Here is the link: http://www.netlib.org/lapack/lawnspdf/lawn41.pdf
From the document flops are:
1/3 n^3 + 1/2 n^2 + 1/6n
Hope it helps
Julie
Here is the link: http://www.netlib.org/lapack/lawnspdf/lawn41.pdf
From the document flops are:
1/3 n^3 + 1/2 n^2 + 1/6n
Hope it helps
Julie
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Re: Performance measurement for BLAS 3 sub-routine
by buggedup » Wed Jan 26, 2011 4:11 pm
Hey...
Thanks for the reply.
I cud see on the page...it is given for SPOTRF...
But, will it be same for double precision matrix also..I mean for DPOTRF?
uggedUp BuggedUp
Thanks for the reply.
I cud see on the page...it is given for SPOTRF...
But, will it be same for double precision matrix also..I mean for DPOTRF?
uggedUp BuggedUp
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Re: Performance measurement for BLAS 3 sub-routine
by admin » Wed Jan 26, 2011 4:11 pm
yes it is the same.
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Re: Performance measurement for BLAS 3 sub-routine
by buggedup » Wed Jan 26, 2011 4:13 pm
hey...
thanks for d help....
BuggedUp
thanks for d help....
BuggedUp
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