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Thanks for the reply Clint,
I am afraid I still don't see how these figures fit! If the Floating point operations are not delaying us, then the FLOPS are limited by how fast we can stream matrix A in the processor (You have stated this as well in your reply).
** If we are talking about single floating point data (4bytes/element), then 3GB/s is equivalent to 3*10^9/4 elements per second...
2007-07-23 07:52:00 UTC in Automatically Tuned Linear Algebra Soft.
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I am running atlas on a AMD Athlon Dual core 3800_ running @ 2GHz. The system has 2x 1GB PC3200 DDR DIMMs.
I am running a series of matrix-vector products on single precision elements and I am getting around 2.9 GFLOPS. When I run the STREAM benchmark I get around 3GB/s memory bandwidth.
The problem is that these 2 figures don't fit together. I believe that for a matrix-vector product The...
2007-07-13 07:50:44 UTC in Automatically Tuned Linear Algebra Soft.
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