Thank you for your suggestions. When I specify the full path of pw.x, the MPI with pw.x can run successfully.
Can you give more suggestions to avoid input full path of pw.x to run mpi&pw.x? sincerely yours Cheng YC 2008/3/24, Axel Kohlmeyer <akohlmey at cmm.chem.upenn.edu>: > > On Mon, 24 Mar 2008, wrote: > > YC> Dear all: > > dear cheng, > > YC> I've successfully compiled parallel version pwscf 3.2.3 &4.0 > on my > YC> system (suse10 for IA64). The included tests are passed. But I can't > run > YC> pw.x with mpi. > YC> To clearly show my problem, I describe it as follows: > YC> first, I test the mpi to check whether it can work. It works! > > how did you test it? > > YC> second, I test the pwscf. I run pw.x:$pw.x < al.scf.in >al.scf.out&. > it can > YC> work. > > are you _sure_ you compiled a parallel version? > most MPI libraries do not allow the parallel executable > to be run without the MPI environment, ie. via mpirun. > > > YC> third, I test the mpi with pwscf. I run:$ mpirun -np 10 pw.x < > al.scf.in > > YC> al.scf. out &. it can't wrok. > > YC> The errors are:Missing: program name Program pw.x either > does not > YC> exist, is not executable, or is an erroneous argument to mpirun. > > is pw.x in your regular search path for exectuables? > > try: which pw.x > > also you can try specifying the full path to pw.x > > > finally, you should not use I/O redirection with parallel > execution. this is not handled portably across MPI implementations. > better to use the -in flag. to specify the input filename. > > cheers, > axel. > > YC> Is there any suggestions to solve this problem? > YC> > YC> sincerely yours > YC> > YC> Cheng YC > YC> > YC> > YC> > > -- > ======================================================================= > Axel Kohlmeyer akohlmey at cmm.chem.upenn.edu http://www.cmm.upenn.edu > Center for Molecular Modeling -- University of Pennsylvania > Department of Chemistry, 231 S.34th Street, Philadelphia, PA 19104-6323 > tel: 1-215-898-1582, fax: 1-215-573-6233, office-tel: 1-215-898-5425 > ======================================================================= > If you make something idiot-proof, the universe creates a better idiot. > -- Y. C. Cheng Department of Phyics Nanjing University Nanjing 210093 P. R. China Tel: 86-25-83592907 Email: yccheng.nju at gmail.com -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.democritos.it/pipermail/pw_forum/attachments/20080324/e4c1b48c/attachment.htm
