#11054: GHC on Windows could not use more than 64 logical processors -------------------------------------+------------------------------------- Reporter: varosi | Owner: Type: feature request | Status: new Priority: normal | Milestone: 8.2.1 Component: Runtime System | Version: 7.10.2 Resolution: | Keywords: Operating System: Windows | Architecture: x86_64 Type of failure: Runtime | (amd64) performance bug | Test Case: Blocked By: | Blocking: Related Tickets: #12602 | Differential Rev(s): Phab:D2533 Wiki Page: | -------------------------------------+------------------------------------- Comment (by Phyx-): There's nothing contradictory about what's on the website. It takes 3 flags to make it threaded. Also as the replies said, you can make it the default for your exe so you don't have to specify it when running the application. Surely calling `Control.Concurrent.setNumCapabilities` on startup or using `-with-rtsopts` isn't that prohibitive.. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11054#comment:45 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler