Στις 24/10/2013 02:47 μμ, ο/η Reuti έγραψε:
Hi,

Am 24.10.2013 um 10:07 schrieb mark:


i did a fresh install of 3.0.4. on a linux laptop and since i dont have much experience i followed the installation readme on the tar file and everything went well 


You mean a plain `./configure && make && make install`, hence installed at the standard location as root?
Well i mean that actually , but as non-root. And in the user folder as in /home/<username>/mpich-install . 
expect the part when i test the installation. The first test run : mpiexec -n <number> ./examples/cpi , went as planned but then the second test run on multiple nodes (mpiexec -f machinefile -n <number> ./examples/cpi) returned some errors. As the readme states there should be a machinefile. The thing is i cant find this file and tried to create it my self in the given form, just using only my laptops hostname a couple of times and placing it in the mpich installation directory ( /home/<username>/mpich-install) and that didnt fix the errors.


Is MPICH 3.0.4 also available on both machines?
For now i have only this machine.Single laptop and i would like to run some mpi programs. Maybe in this case , perhaps is the machinefile useless??

      

        
One other thing i noticed is that on the readme states that hydra is the primary process manager, but using the mpiexec -info it clearly states that pmi ( or something similar ) is the primary pm.


      

      
http://wiki.mpich.org/mpich/index.php/Frequently_Asked_Questions#Q:_What_are_process_managers.3F

Maybe it should better read: "Process Manager uses: pmi", and as the default is to compile Hydra, you know it already (there are different `mpiexec`s for the different process managers and e.g. mpiexec.gforker has no "-info" option).



    

    So the primary processor manager (default) in my installation is
    hydra right?

    

      

      

        
And for a last thing my installation was made without using any prefixes at the configuration.

PS.One other thing i just noticed is that when i did the installation i could run mpich ( the test runs with the pi programm, mpiexec -info , etc) , but now after a reboot i cant run mpich on the terminal. For example mpiexec -info returns bash: mpiexec: command not found . Whats the deal with that? Didnt i installed mpich on my machine?


      

      
Might be a $PATH problem, in case it wasn't installed at the default location.

    

    I thought of that too, and i checked it but unsuccessfully. Maybe it
    has to do with the fact that i didn't installed it as root.Maybe i
    need to redo the installation as root? Any suggestions? As to the
    install location etc ?

    

      

-- Reuti


    

    Thank you for your time.