Number of double precison units

Accelerated Computing CUDA CUDA Programming and Performance
1

I can’t find any information on the number of double precision units in the various compute capability 1.3 devices.

Can anyone send a link or a table with the info?

Thanks!
Leonard

2

There’s one double precision unit per SM, and one special function unit (for transendentals). So just count the number of SMs on the board, which is the number of SPs/8. So for a GTX 280, it’s 240/8=30.

3

In reality there is not double precision unit (nvidia can confirm) in the die layout, the two double precision you “feel” is just an artifact, just consider as you have two of them.

K.

4

The double precision unit is there.