Re: [deal.II] multi-threading not working with v9.3.0 upgrade

2021-10-24 Thread Wolfgang Bangerth
On 10/24/21 6:03 PM, Yilin Luo wrote: I have a code that works well with multi-threading class in v9.2.0, but once I upgrade to 9.3.0 the code runs very slow and CPU usage was only 20%. The output of MultithreadInfo::n_threads() is 8 and I could see threads opened, but the speed was about 8x

[deal.II] multi-threading not working with v9.3.0 upgrade

2021-10-24 Thread Yilin Luo
Hello, I have a code that works well with multi-threading class in v9.2.0, but once I upgrade to 9.3.0 the code runs very slow and CPU usage was only 20%. The output of MultithreadInfo::n_threads() is 8 and I could see threads opened, but the speed was about 8x times slower than my previous ru