I would like to include SIMD parallelism in OpenMP loop. The syntax of the loop simd construct is simple as
!$omp do simd
!$omp end do simd
The question is that after the code is compiled with above construct, will the executable run on a non-simd processor? I mean if I compile the code with the above and distribute the executable file to all users with different processors, will some of them with a non-simd processor encounter any problem? Thank you, Maria
Intel Fortran isn't supported on any non-SIMD processors. That would have to be pre-Pentium 4. DO SIMD distributes the loop across threads and uses vector instructions where useful.