First make sure you have NGSolve installed. You will also need cmake and a C++ compiler.
After that clone this repository and build with cmake and make.
git clone https://github.com/bschwb/h1amg.git
mkdir -p h1amg/build
cd h1amg/build
cmake ../ && make install
To run the python examples be sure to follow the build steps above.
Then navigate into the python subdirectory and run netgen laplace_square.py
or any other example in that directory.
Tests are disabled by default.
To enable the tests invoke cmake with the flag -DBUILD_TESTING=ON.
To run the test navigate to the build directory and run make test or ctest.
If you need more output, e.g. to see specific tests failing, use ctest -V.
To run individual tests use ctest -R <regex>.
E.g. ctest -R h1 to only run h1 integration tests.
At the beginning of the python script you want to profile add the following line to specify the maximum tracefile size in bytes.
import ngsolve as ngs
ngs.ngsglobals.pajetrace = 100000000After running your example, a file named ng0.trace will be saved in the directory
you ran the example in.
You can view this file with vite.
If you get the following error message, try to increase the maximum tracefile size.
Tracing stopped during computation due to tracefile size limit of 0 megabytes.
To increase the limit, set in the pde file:
flags tracer = -max_size=size_in_megabytes
max_size=0 disables tracing
The error message describes how to fix it in case of using a .pde file which is not what we use
for here.
- Joachim Schöberl
- Lukas Kogler
- Bernd Schwarzenbacher