In windows the only option is select the core(s) for an application, but if the app is designed for one, only one is used. To get it is needed load the app from script (.bat) or from a Direct access. E.g. to use core 1, edit a Direct access properties: Destination: C:\Windows\System32\cmd.exe /C start /affinity 2 soffice.exe Start in: "C:\Program Files (x86)\LibreOffice 4.0\program\" In this way I set up LibreOffice in 1, Firefox in 2, Thuntherbird in 3, to avoid the core 0, what is the most commonly used by the apps. Miguel Ángel -- View this message in context: http://nabble.documentfoundation.org/Libreoffice-multiple-cores-problem-tp4057938p4058160.html Sent from the Users mailing list archive at Nabble.com. -- To unsubscribe e-mail to: users+unsubscribe@global.libreoffice.org Problems? http://www.libreoffice.org/get-help/mailing-lists/how-to-unsubscribe/ Posting guidelines + more: http://wiki.documentfoundation.org/Netiquette List archive: http://listarchives.libreoffice.org/global/users/ All messages sent to this list will be publicly archived and cannot be deleted