Intel announced the release of its mOS operating system, based on a modified version of the Linux kernel that in turn is running lightweight kernels (LWKs) for High-Performance Computing (HPC) purposes. To be exact, the version available is based on the latest kernel available, Linux 5.4 LTS.
The Intel MOS operating system can already be used in some supercomputers such as ASCI Red, IBM Blue Gene, etc., although the creation of this OS is due to the launch of its own supercomputer at the Aurora scale, which we now know will use a processor, graphics, memory, and even Intel operating system.
The mOS project, with its lightweight kernels, is considered a “pre-alpha” phase, but at least for some workloads they show very promising, so it is normal that the company seeks to depend on itself for its supercomputer, which It will be powered by Intel technology through and through for maximum value for money.
Under the “Multi-OS” concept, the modified Linux kernel is managing a minimum number of kernel (s) per socket while the “LWK” kernels manage resources for the rest of the system. By using the Linux kernel they maintain Linux ABI compatibility.