Re:The Mars Helicopter Is Online and Getting Ready to Fly
by ajuc on Sunday February 28, 2021 @03:10PM
(#26296586)
Run 9 systems in parallel and reset the ones that give less common results or no results at all.
You still have 10% the surface area, power usage and weight and 10 times the speed of the radiation hardened ones.
Re:The Mars Helicopter Is Online and Getting Ready to Fly
by dawnerd on Sunday February 28, 2021 @01:48PM
(#26295919)
And that’s why it’s wise to have multiple systems running at the same time, if one errors you still hopefully have another online. There’s a reason airplanes and now cars are designed this way. I’m sure they’re working towards this too.
Re:The Mars Helicopter Is Online and Getting Ready to Fly
by spockz on Sunday February 28, 2021 @01:42PM
(#26295858)
Well I suppose they do not have to load all the kernels and drivers that Linux provides today.
I wonder how one could use micro kernels to further improve startup time and have a mini distributed OS/kernel for each component.
Re:The Mars Helicopter Is Online and Getting Ready to Fly
by jessriedel on Sunday February 28, 2021 @07:27PM
(#26298451)
This is a problem with floating point operations happening at a lower level than the error correction you're imagining. In principle, that's not at all necessary. Are you arguing that it's infeasibly expensive to design a chip with operations that are error correctable?
Re:The Mars Helicopter Is Online and Getting Ready to Fly
by londons_explore on Monday March 01, 2021 @07:46AM
(#26302236)
It's possible - but you'll end up reinventing nearly every step of the IC design process, which will cost a lot.
Therefore boot time becomes critical - if you end up rebooting due to bit errors multiple times per second, you can't afford to wait for Linux to start up each time...