Dear users I installed openmpi 1.3.3 on my PC (single core & quad-processes). The compilation reported no error and I have found the executable file in the configure directory. But when I try to test it, I met a problem.
I tested it with Vasp and PWscf programs, respectively. I typed "mpirun -np 4 vasp &", and then it runs like four separated processes (not parallel run), which looks like "mpirun -np 1 vasp &" X 4. Moreover, I tested it with pwscf by "mpirun -np 4 pwscf <input >output &", only 25% of cpu was taken up.(It should have been 100%, 4 processes). Could anybody help me to fix this problem? Thank you in advance. -- Sincerely yours Jiaye Li
