Jeff Squyres - May 30, 2015 - 0 Comments
The term “operating system bypass” (or “OS bypass”) is typically tossed around in MPI and HPC conversations; it’s generally something that is considered a “must have” in order to get good performance with many MPI applications
But what is it? And if it’s good for performance, why don’t all applications use OS bypass?
The usual model for accessing networking hardware (e.g., Network Interface Cards, or NICs) is to make userspace API calls — such…