It seems that your application has been compiled with the MPICH version
of the compiler. The 'p4' error comes from MPI_Init in MPICH. Try
recompiling your application with the LAM/MPI equivalent, and running
that binary.
Josh
On Jan 28, 2005, at 12:07 PM, <Tong_Liu_at_[hidden]> wrote:
> Hello
>
> After I did lam environment setup and successfully lamboot on my four
> node Rocks based cluster, I run some mpi applications under mpich
> example, such as cpi. Every time I run cpi, it can get the result
> properly, but I saw some warning message consistently after the
> result:
>
> -----------------------------------------------------------------------
> ------------------------
> It seems that [at least] one of the processes that was started with
> mpirun did not invoke MPI_init before quitting (it is possbile that
> more than one process did not invoke MPI_INIT -- mpirun was only
> notified of the first one, which was no node n0).
>
> MPIrun can *only* be used with mpi programs (i.e………………….)
> -----------------------------------------------------------------------
> -------------------------
>
> P0_25895: p4_error: semget failed for setnum:0 (This p4_error does not
> always happen, only some time. )
>
>
>
>
> In addition, whenever I want to run linpack coming with
> '/opt/hpl/gnu/bin/xhpl' on four nodes ,
>
> HPL.dat is like the following:
> -----
> -----
> 2 Ns
> 2 Ps
> ------
> ------
> Then I used the following command to execute it:
> # mpirun n0-3 -np 4 xhpl
>
> I got error and no result can be achieved :
>
> -----------------------------------------------------------------------
> -------------------------------------
> HPL error from process # 0, on line 408 of function HPL_pdinfo:
> >>>NEED at least 4 processes for these tests <<<
>
>
>
> HPL error from process # 0, on line 408 of function HPL_pdinfo:
> >>> Illegal input in file HPL.dat. Exiting … <<<
>
> P0_25895: p4_error: semget failed for setnum:0
> -----------------------------------------------------------------------
> --------------------------------------
> It seems that [at least] one of the processes that was started with
> mpirun did not invoke MPI_init before quitting (it is possbile that
> more than one process did not invoke MPI_INIT -- mpirun was only
> notified of the first one, which was no node n0).
>
> MPIrun can *only* be used with mpi programs (i.e………………….)
> -----------------------------------------------------------------------
> --------------------------------------
>
> From the command I run, it did included '-np 4'. Why did program still
> asked for: >>>NEED at least 4 processes for these tests <<<
>
> But I can run Linpack on one node successfully under LAM with one
> process configuration in HPL.dat.
> Also, mpirun under MPICH can run 4 nodes configuration Linpack
> without any issues.
>
> Why did these two error happen? Can anybody give any suggestions?
> Thanks
>
> _______________________________________________
> This list is archived at http://www.lam-mpi.org/MailArchives/lam/
----
Josh Hursey
jjhursey_at_[hidden]
http://www.lam-mpi.org/
|
