@@ -40,21 +40,21 @@ Source code used in the benchmarks (version of June 22, 2021) [./gadget/4.0/gadg
There are two files to obtain from the repository: gadget4.tar.gz and example_ics.tar.gz
gadget4.tar.gz includes the source code, examples, buildsystem, and documentation folders. It also includes Makefile and Makefile.systype (or a template)
gadget4.tar.gz includes the `src` code, `examples`, `buildsystem`, and `documentation` folders. It also includes **Makefile** and **Makefile.systype** (or a template)
example_ics.tar.gz includes initial conditions that are needed for each of the examples. When untarred you generate a folder named ExampleICs. You may download the examples initial conditions from [./gadget/4.0/example_ics.tar.gz](./gadget/4.0/example_ics.tar.gz)
example_ics.tar.gz includes initial conditions that are needed for each of the examples. When untarred you generate a folder named `ExampleICs`. You may download the examples initial conditions from [./gadget/4.0/example_ics.tar.gz](./gadget/4.0/example_ics.tar.gz)
1. After decompressing gadget4.tar.gz go to the master folder named gadget4. There are two files that need modification: Makefile.systype and Makefile.
1. After decompressing gadget4.tar.gz go to the master folder named `gadget4`. There are two files that need modification: **Makefile.systype** and **Makefile**.
a) In the Makefile.systype select one of the system types by uncommenting the corresponding line or add a line with your system, e.g.,
1. In the **Makefile.systype** select one of the system types by uncommenting the corresponding line or add a line with your system, e.g.,
```
#SYSTYPE="XXX-BBB"
```
where XXX = system name and BBB = whatever you may want to include here, e.g., impi, openmpi, etc.
b) In case you uncommented a line corresponding to your system in the Makefile.systype then there is nothing to do in the Makefile.
1. In case you uncommented a line corresponding to your system in the **Makefile.systype** then there is nothing to do in the **Makefile**.
c) In case you added a line, say #SYSTYPE="XXX-BBB", into the Makefile.systype then you must modify the Makefile by adding the following lines in 'define available Systems'
1. In case you added a line, say #SYSTYPE="XXX-BBB", into the **Makefile.systype** then you must modify the **Makefile** by adding the following lines in 'define available Systems'
```
ifeq ($(SYSTYPE),"XXX-BBB")
...
...
@@ -63,9 +63,9 @@ include buildsystem/Makefile.path.XXX-BBB
endif
```
2. In the folder buildsystem make sure you have the Makefile.comp.XXX and Makefile.path.XXX (XXX = cluster name) set with the proper paths and compilation options, respectively. Either chose the existing files or create new ones that reflect your system paths and compiler.
2. In the folder `buildsystem` make sure you have the **Makefile.comp.XXX** and **Makefile.path.XXX** (XXX = cluster name) set with the proper paths and compilation options, respectively. Either chose the existing files or create new ones that reflect your system paths and compiler.
3. The folder examples has several subfolders of test cases. From one of these subfolders, e.g., CollidingGalaxiesSFR, copy Config.sh to the master folder.
3. The folder examples has several subfolders of test cases. From one of these subfolders, e.g., `CollidingGalaxiesSFR`, copy **Config.sh** to the master folder.
4. In the master folder compile the code
```
...
...
@@ -73,9 +73,9 @@ make CONFIG=Config.sh EXEC=gadget4-exe
```
where EXEC is the name of the executable.
5. Create a folder named `Run_CollidingGalaxies`. Copy gadget4-exe, and the files param.txt and TREECOOL existing in the subfolder CollidingGalaxiesSFR to `Run_CollidingGalaxies`.
5. Create a folder named `Run_CollidingGalaxies`. Copy **gadget4-exe**, and the files **param.txt** and **TREECOOL** existing in the subfolder `CollidingGalaxiesSFR` to `Run_CollidingGalaxies`.
6. In the folder `Run_CollidingGalaxies` modify param.txt to include the adequate path to the initial conditions file ics_collision_g4.dat located in the folder ExampleICs and modify the memory per core to that of the system you are using.
6. In the folder `Run_CollidingGalaxies` modify **param.txt** to include the adequate path to the initial conditions file **ics_collision_g4.dat** located in the folder `ExampleICs` and modify the memory per core to that of the system you are using.
7. Run the code using mpirun or submit a SLURM script.
