Re: [tdf-discuss] Cores and threads

2013-04-03 Thread Michael Meeks
Hi Pedro, On Mon, 2013-04-01 at 06:48 -0700, Pedro wrote: > Why doesn't Calc (at least under Windows...) use all available cores and > threads to speed up operations? Primarily because threading is hard. Code that is not written to take advantage of multiple processors is reasonably hard

[tdf-discuss] Cores and threads

2013-04-01 Thread Pedro
Hi all Why doesn't Calc (at least under Windows...) use all available cores and threads to speed up operations? Opening a heavy (200k lines x 26 cols) xlsx file takes 6 seconds in a Intel Core i5 (2 cores, 4 threads) using MS Office 2010. I can see the first 3 threads briefly going up to 70% load