Linux @lemmy.ml superkret @feddit.org 1mo ago

OS market share in Top 500 supercomputers

Source: https://en.wikipedia.org/wiki/Supercomputer_operating_system
Author: https://commons.m.wikimedia.org/wiki/User:Benedikt.Seidl
Data from: http://top500.org/stats

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Maybe windows is not used in supercomputers often because unix and linux is more flexiable for the cpus they use(Power9,Sparc,etc)
- Plus Linux doesn't limit you in the number of drives, whereas Windows limits you from A to Z. I read it here.
  
  You can mount drives against folders in windows. So while D: is one drive, D:\Logs or D:\Cake can each be a different disk.
  
  What in the world? I don't think I've ever seen that in the wild
  
  It’s common in the server world. KB article on it is here.
  
  For people who haven’t installed Windows before, the default boot drive is G, and the default file system is C
  
  So you only have 25 to work with (everything but G)
  
  G can be mapped after boot (usually to removable drives)
  
  Almost, the default boot drive is C:, everything gets mapped after that. So if you have a second HDD at D: and a disk reader at E:, any USBs you plug in would go to F:.
  
  Why do you copy the boot files from C and put them in G during install then?
  
  I don't think anybody does that, honestly.
  
  You can have a helper script do it for you (the gui) but it still happening in the background
  
  The boot files go into C:, not G:.
  
  Windows can't operate if you did that, it doesn't let you.
  
  Copy Boot Files to EFI Copy the boot files to complete the EFI partition to boot into our windows.
  
  bcdboot c:\Windows /s G: /f ALL
  
  Source: https://christitus.com/install-windows-the-arch-linux-way/
  
  Fijn article, thanks for sharing!
  
  Still, I don't get why'd you do that, all my windows installation automatically put boot files onto C: and did not allow me to touch them afterwards.
  G: also seems completely arbitrary, and I'm the majority of windowa setups wouldn't exist or be an external drive.
  Simple as.
  
  The boot directory on your file system is where the system gets it from to put on G. It’s left there for recovery/repair
  
  But you still have a G partition for the boot. It lets the computer itself have an easier time finding it (think labeled as boot). Your ssd is divided, it’s not a 2nd physical disk
  
  The letter is arbitrary, so is C. It’s just the default
  
  Ok that would make sense tbh
- More importantly, they can't adapt Windows to their needs.
  
  Yep the other reason.
- That's certainly a big part of it. When one needs to buy a metric crap load of CPUs, one tends to shop outside the popular defaults.
  
  Another big reason, historically, is that Supercomputers didn't typically have any kind of non-command-line way to interact with them, and Windows needed it.
  
  Until PowerShell and Windows 8, there were still substantial configuration options in Windows that were 100% managed by graphical packages. They could be changed by direct file edits and registry editing, but it added a lot of risk. All of the "did I make a mistake" tools were graphical and so unavailable from command line.
  
  So any version of Windows stripped down enough to run on any super-computer cluster was going to be missing a lot of features, until around 2006.
  
  Since Linux and Unix started as command line operating systems, both already had plenty fully featured options for Supercomputing.

164 comments