[OMPI users] An error occurred in MPI_comm_size

2008-04-07 Thread yacob sen
Dear All, I have just installed openmpi/mpich in ubuntu 7.10 in my linux machine which has a dual processor. I compiled my fortran program as follows: mpif90 add.f90 -o add_n I, however, forced to copy "mpif.h" library in my working directory where i run my program and also I inserted a

Re: [OMPI users] An error occurred in MPI_comm_size

2008-04-08 Thread yacob sen
-np 4 ./test (test being the exe file coming form my the compiled fortran program). The program still give a result based on 4 processor. How can this be true while I have only two processor in my laptop. Can any one comment on this ? Regards yacob - Original Message From: yacob

[OMPI users] mpi parallel code to run on infinipath env.

2008-04-20 Thread yacob sen
Dear All, I have parallel program written on mpi. I am able to run on openmpi environment in our Linux cluster. I found out that it is rather slow. I have heard that it could be faster if it is run on infinipath environment where it has lower latency. I run my program which runs perfectly on