Fortran applications using Fortran 2008+ features

[septc]

@rouson

Finally, the best news I’ve seen on do concurrent is that NVIDIA supports offloading do concurrent to GPUs. Researcher Jeff Hammond, who recently moved from Intel to NVIDIA, has privately shared great results from testing this capability with his Parallel Research Kernels . He reported bandwidth comparable to CUDA.

I didn’t know that… :-o If DO CONCURRENT works directly with GPU, I definitely would like to try (if it is easier to use than CUDA itself… )

Unless the problematic cases can be addressed without breaking upward compatibility, I think it would be better to propose a replacement feature, e.g., do parallel , with syntax as close to do concurrent as possible so that existing codes can migrate to the new feature easily

From a user’s side, it is no problem which keyword or syntax is used for the parallel execution (e.g. FORALL, DO CONCURRENT, DO PAPARALLEL). But my concern is why those keywords have some problems and even FORALL deprecated(?) (though I feel it very convenient)… I guess it might be some limitation of a “specification first” approach (i.e. no implementation before the final/formal specification)