#15741: Accept GHCRTS=-N1 when not compiled with -threaded -------------------------------------+------------------------------------- Reporter: lspitzner | Owner: (none) Type: feature | Status: new request | Priority: normal | Milestone: Component: Runtime | Version: 8.6.1 System | Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: None/Unknown Unknown/Multiple | Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- current behaviour: {{{

ghc Main.hs -o test ./test +RTS -N1 test: the flag -N1 requires the program to be built with -threaded [blah blah] }}}

requested: {{{

ghc Main.hs -o test ./test +RTS -N1 hello world }}}

Motivation: In certain environments, threaded is bad idea due to resource constraints even when multiple capabilities are available, because resident memory can increase with parallel execution. Slapping GHCRTS=-N1 onto those environments would be nice, but breaks for things not compiled with -threaded. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15741 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler