Re: [deal.II] Evaluating a solution at a vertex, step-13

2021-10-24 Thread Wolfgang Bangerth
On 10/20/21 1:32 PM, Kyle Schwiebert wrote: error: ‘const class dealii::DoFCellAccessor, false>’ has no member named ‘vertex_indices’; did you mean ‘vertex_index’? The function was only added in a recent deal.II version I believe. What version are you using? I don't understand the differe

Re: [deal.II] Matrix construction for vector valued problems

2021-10-24 Thread Wolfgang Bangerth
On 10/20/21 2:20 PM, Ali Seddiq wrote: So according to that, is it still correct if I sum up the equations in discretized form? (Considering the fact that they're still containing trial and test functions, though in discretized form). No. It is the presence of the "for all test functions v,q"

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