Dear Freddie, Thanks a lot for your reply.
Could you please tell me whether in your estimations you considered all floating-points operations: +, -, *, /, fabs, sqrt, ... as of the same type, or applied some sort of conversion to express that some are typically more expensive than others, such as "/" or "sqrt"? Best regards, Antonio On Tuesday, February 7, 2017 at 8:16:16 PM UTC+1, Freddie Witherden wrote: > > Hi Antonio, > > On 06/02/17 07:42, Antonio Garcia-Uceda wrote: > > I'd like to ask you whether you could provide me with a estimation > > of the number of floating point operations needed for the different > > pointwise operators in PyFR (separately if possible). In particular, > > the computation of inviscid and viscous fluxes, in cells and on > > faces. > > The overall flops from the pointwise operations are insignificant > compared to the matrix multiplication operations. However, as they are > just pointwise you can estimate the number of flops by counting the > number of operationa required to compute the 15 fluxes in a 3D Euler > simulation. Account for the matrix vector products to transform these > fluxes from physical to transformed spce and you've got a reasonable > estimate. > > Regards, Freddie. > -- You received this message because you are subscribed to the Google Groups "PyFR Mailing List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. Visit this group at https://groups.google.com/group/pyfrmailinglist. For more options, visit https://groups.google.com/d/optout.
