Hi, Intell technician,
I revised our application Fortran codes in terms of the instructions given in the following paper:
https://software.intel.com/en-us/articles/fortran-array-data-and-arguments-and-vectorization
However, our Fortran application did not improve in performance. On the contrary, our Fortran application get worse performances.
For example, if I add !dir$ vector aligned before a do loop:
!dir$ vector aligned
do itt=1, jgm
hmat(itt,mdnorp)=cs(itt) * hmat(itt,mdnorp)-sn(itt) * hmat(itt,mdnorp)
end do
Could you tell me what probably caused such a poor performance? Do you have some standard Fortran OpenMP programmes for public to confirm any works given in the above paper?
I look forward to hearing from you.
Best regards,
Dingjun
