Hi to all, I'm working on a WinXP, VS2010, boost 1.46.1, openMPI 1.4.3. I've used in the past the BGL lib, and now I would explore the PBGL extension. I've writed a simple program (you can find it in attach), but I've some problem. When I run it with: mpirun -np 1 .\test.exe it works. But if I use 2 or 4 processors the program crash sistematically in the following way, on different machines too: num_vertices: 10 num_edges: 19 A-->B : 1 A-->C : 10 A-->D : 11 B-->D : 13 C-->D : 12 B-->E : 1 C-->A : 14 E-->D : 1 D-->B : 15 D-->A : 1 E-->B : 16 -------------------------------------------------------------------------- Sorry! You were supposed to get help about: odls-default:could-not-kill But I couldn't open the help file: D:\dev\CommesseAperte\Sviluppo\TELLUSXX_CalcServer\lib\openmpi\installed\share\openmpi\help-odls-default.txt: No such file or directory. Sorry! -------------------------------------------------------------------------- Every process allocates 1 GB. The problem disappear only when I eliminate all the property access (get() and put()). Maybe I access to the MPI framework for the first time during the property access, and so could be an MPI problem? Am I using the property in a wrong way? Thanks in advance, Cosimo Calabrese.