@@ -64,7 +64,20 @@ To run the C and python tests of the installed `hotwheels` components, run:
python -m hotwheels.checkup hotwheels
```
The tests will be run using envirnoment varialbe `CC` for the C ompiler (will default to `gcc`), `MPICC` for the MPI compiler (will default to `mpicc`), `CXX` and `MPICXX` for the c++ version (will default to `g++` and `mpicxx` respectively).
The PM run needs the `gsl` and `fftw3` to be installed. They should be either in a standard path (`/usr/{lib,include}`) or in your compiler search path (namely, in your `C_INCLUDE_PATH`, `CPLUS_INCLUDE_PATH`, and `LD_LIBRARY_PATH` env variables).
# Environment variables
Here below some relevant environment variables to change hotwheels default settings:
| `MPICC` | MPI C compiler (defaults to `mpicc`). |
| `CXX` | C++ compiler (defaults to `g++`). |
| `MPICXX` | MPI C++ compiler (defaults to `mpicxx`). |
| `HW_BUILD` | Folder with runtime-generated headers, and C/C++ compiled object files. |
| `HW_DATA` | Folder where downloaded test initial conditions (ICs) should be placed. |
| `DEBUG` | Set to `1` to enable additional verbose output for debugging purposes. |
| `C_INCLUDE_PATH` | *(used by the gnu compiler)* Search path for C headers, should include paths for required libraries like `gsl` and `fftw3`. |
| `CPLUS_INCLUDE_PATH`| *(used by the gnu compiler)* Search path for C++ headers, should include paths for required libraries like `gsl` and `fftw3`. |
| `LD_LIBRARY_PATH` | *(used by linux)* Search path for runtime libraries, should include paths for required libraries like `gsl` and `fftw3`.|
