Extreme High Performance Computing or Why Microkernels ... - dei.uc.

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Isolation vs. Integration Microkernel isolates kernel components More secure from failure Defined API to between components of a kernel Monolithic OS Large potentially complex code Universal access to data API implicitly established by function call convention Difficulty of keeping application state in Microkernels Performance issues by not having direct access to relevant data from other subsystems. Monolithic OS like Linux also have isolation methods Source code modularization Binary modules 14
Monolithic kernel has flexible APIs if no binary APIs are supported like in Linux Microkernel must attempt to standardize on APIs to ensure that operating system components can be replaced. Thus a monolithic kernel can evolve faster than microkernel. APIs 15
Page 1 and 2: Extreme High Performance Computing
Page 3 and 4: Applications of High Performance Co
Page 5 and 6: Black Hole Simulation 5
Page 7 and 8: Forecast of Hurricane Katrina 7
Page 9 and 10: High Performance Computer Architect
Page 11 and 12: Current Maximum Scaling of a single
Page 13: Microkernels vs. Monolithic Microke
Page 17 and 18: Scaling up Linux Per cpu areas Per
Page 19 and 20: Multiple processors New need for sy
Page 21 and 22: Allocators for a Uniform Memory Arc

Extreme High Performance Computing or Why Microkernels ... - dei.uc.

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