X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/2b93372d5968f244e791359c1f9b8692f4d2c2b1..b395bb46c2d3c1d033998f8c438b80ce3c451a3b:/doc/doxygen/install_yours.doc diff --git a/doc/doxygen/install_yours.doc b/doc/doxygen/install_yours.doc new file mode 100644 index 0000000000..1ee722cbf8 --- /dev/null +++ b/doc/doxygen/install_yours.doc @@ -0,0 +1,123 @@ +/*! @page install_yours Setup your own project + +@tableofcontents + +It is not advised to modify the simgrid source code directly, as it +will make it difficult to upgrade to the next version of SimGrid. +Instead, you should create your own working directory somewhere on +your disk (say `/home/joe/MyFirstScheduler/`), and write your code in +there. + +Then, you should find a solution to get your code compiled and linked +to the SimGrid library as needed. This page helps you to do so with +several tools: +@ref install_yours_cmake "CMake" and +@ref install_yours_makefile "Makefile." +If you configure your project with a tool that is not listed here, +we'd be glad to hear how you've done that to extend this +documentation. + +@section install_yours_cmake Building your project with CMake + +Here is a `CMakeLists.txt` that you can use as a starting point for +your project. It builds two simulators from a given set of source files. + +@verbatim +project(MyFirstScheduler) + +set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11") + +set(SIMULATOR_SOURCES main.c other.c util.c) +add_executable(my_simulator ${SIMULATOR_SOURCES}) +target_link_libraries(my_simulator simgrid) + +set(OTHER_SOURCES blah.c bar.c foo.h) +add_executable(other_xp ${OTHER_SOURCES}) +target_link_libraries(other_xp simgrid) +@endverbatim + +@section install_yours_makefile Building your project with Makefile + +Here is a Makefile that will work if your project is composed of three +C files named @c util.h, @c util.c and @c mysimulator.c. You should +take it as a starting point, and adapt it to your code. There is a +plenty of documentation and tutorial on Makefile if the file's +comments are not enough for you. + +@verbatim +# The first rule of a Makefile is the default target. It will be built when make is called with no parameter +# Here, we want to build the binary 'mysimulator' +all: mysimulator + +# This second rule lists the dependencies of the mysimulator binary +# How this dependencies are linked is described in an implicit rule below +mysimulator: mysimulator.o util.o + +# These third give the dependencies of the each source file +mysimulator.o: mysimulator.c util.h # list every .h that you use +util.o: util.c util.h + +# Some configuration +SIMGRID_INSTALL_PATH = /opt/simgrid # Where you installed simgrid +CC = gcc # Your compiler +WARNING = -Wshadow -Wcast-align -Waggregate-return -Wmissing-prototypes \ + -Wmissing-declarations -Wstrict-prototypes -Wmissing-prototypes \ + -Wmissing-declarations -Wmissing-noreturn -Wredundant-decls \ + -Wnested-externs -Wpointer-arith -Wwrite-strings -finline-functions + +# CFLAGS = -g -O0 $(WARNINGS) # Use this line to make debugging easier +CFLAGS = -g -O2 $(WARNINGS) # Use this line to get better performance + +# No change should be mandated past that line +############################################# +# The following are implicit rules, used by default to actually build +# the targets for which you listed the dependencies above. + +# The blanks before the $(CC) must be a Tab char, not spaces +%: %.o + $(CC) -L$(SIMGRID_INSTALL_PATH)/lib/ $(CFLAGS) $^ -lsimgrid -o $@ +%.o: %.c + $(CC) -I$(SIMGRID_INSTALL_PATH)/include $(CFLAGS) -c -o $@ $< + +clean: + rm -f *.o *~ +.PHONY: clean +@endverbatim + +@section install_yours_trouble Troubleshooting your project setup + +@subsection install_yours_trouble_libpath Many undefined references + +Sometimes, the following error message (or similar) will be produced. +@verbatim +masterworker.c:209: undefined reference to `sg_version_check' +masterworker.c:209: undefined reference to `MSG_init_nocheck' +(and many other undefined references) +@endverbatim + +It means that the system does not manage to find simgrid when it tries +to execute your programs. Specify where to search with the +LD_LIBRARY_PATH variable. Try running the following command +before executing your code. If it helps, you should add this line to +your ~/.bashrc so that it gets executed each time you log into your +computer. + +@verbatim +export LD_LIBRARY_PATH=/opt/simgrid/lib +@endverbatim + +@subsection install_yours_trouble_oldlib Only a few undefined references + +Sometimes, the compilation only spits very few "undefined reference" +errors. A possible cause is that the system selected an old version of +the SimGrid library somewhere on your disk. + +Under Linux, you can find which version was used with the following +command that will display the full path to every used dynamic library. +Once you've found the obsolete copy of SimGrid, just erase it and +relaunch your program. +@verbatim ldd yoursimulator +@endverbatim + + +*/