Doubly Amazed
I would have thought that since a scientific supercomputer is used for running Fortran code, not for running popular off-the-shelf applications, there would be no reason to insist on a system that could run Microsoft Windows.
But, since Intel has the advantage of a huge market for its processors to ordinary computer users, who do have a need for Microsoft Windows, in terms of performance per dollar, I would have expected that by now Intel would have such an advantage that IBM would find it hard to be competitive even in HPC without obstacles like this.