Re: [Libmesh-users] About the long time cost of the first step!

2008-05-12 Thread luyi
I run the RKDG constructed by transientLinearImplicitSystem and when I use the high order (second or higher) there is the same problem, the perf_log result of the first step is as follow: -- | Matrix Assembly Performance

Re: [Libmesh-users] About the long time cost of the first step!

2008-05-12 Thread John Peterson
Hi, Could you possibly resend the timing results with the original/correct spacing? They're a little tough to read. It looks like you are inserting two (or more?) different element matrices for each element and it looks like the "neighbor matrix insertion" is taking the most time. This appears

[Libmesh-users] About the long time cost of the first step!

2008-05-11 Thread luyi
Hello, I make a DG programme on libmesh, there is a problem that the first step takes so long when I use high order basis, the performance log is as follow: -- | Matrix Assembly Performance: Alive time=683.179, Active tim