This section is for compiling VisIt the second time after you've already run build_visit once.
Setting up the .cmake file
build_visit generated a <Computer Name>.cmake file. That file should be placed in the /src/config-site directory.
VisIt uses cmake to generate a build system. For more information, see VisIt CMake Build System. A typical cmake command line line is:
cmake -DCMAKE_BUILD_TYPE:STRING=Debug .
cmake -DCMAKE_BUILD_TYPE:STRING=Release -DVISIT_PARALLEL:BOOL=ON .
Parallel builds are not done by default unless you passed --parallel to build_visit. For more information about building Parallel click here
A wiki page for porting in parallel is here .
make -j 4
After you have run configure now you run make to build VisIt and it's libraries using 4 g++ tasks.