My experience with PGI is that the engineers liked them because they had a FORTRAN to CUDA compiler, so they didn't have to rewrite their code. They were pretty

My experience with PGI is that the engineers liked them because they had a FORTRAN to CUDA compiler, so they didn't have to rewrite their code. They were pretty good about answering bug reports, with the number of times I had to install new compilers on the compute systems.