** Attachment added: "System load during calculation" https://bugs.launchpad.net/ubuntu/+source/atlas/+bug/956753/+attachment/2879600/+files/System%20Monitor_046.png
** Description changed: First of all, the option to easyily compile a multithreaded atlas is just great! - However, I compared the speed to the one from the OpenBLAS library and recognized it to be approx. 30% slower. When examining the CPU-load during calculation, I saw atlas only using 70% of the CPU horsepower (while OpenBlas uses full 100%) and wondered, if there was an option during compiling that can trigger atlas to gain full speed. + However, I compared atlas to the OpenBLAS library and recognized it to be approx. 30% slower. When examining the CPU-load during calculation, I saw atlas only using 70% of the CPU horsepower (while OpenBlas uses full 100%) and wondered, if there was an option during compiling that can trigger atlas to gain full speed. I attached a screenshot of the CPU monitoring. Thank you in advance Stefan -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/956753 Title: custom build of atlas only uses ~70% CPU To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/atlas/+bug/956753/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
