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Re: [ptp-user] problem with using ptp
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Thx, that was really helpful
ruwn
Am Montag, den 06.09.2010, 17:21 -0600 schrieb Alan Humphrey:
> Ruwn,
>
> To tell PTP you'd like more than one process, you need to setup a
> parallel application in the Eclipse "Run Configurations" as opposed to a
> "local C/C++" app (see attached pic).
>
> You'll also want to go through the PTP help plugin (it's pretty clear)
> to setup a resource manager (e.g. mpich, etc). Just setup a local
> resource manager for starters. Once your resource manager is setup and
> started, you can simply select the parallel run configuration you setup
> previously and run it.
>
> Hope this helps.
>
> -Alan
>
>
>
> ruwn wrote:
> > Dear All,
> >
> > I installed PTP 3.0 and everything went fine. If I compile and run the
> > MPI Hello World C Project, i get this output:
> >
> > Num processes: 1
> > PI is approximately 3.1415926535904264
> >
> >
> > If I want to compile and run my own programm (see below), the compiling
> > works fine.
> > But when i want to run it, the only output is:
> > Process: 0
> >
> > I think, that I have to tell PTP to use more than 1 process, but i can't
> > find the setting.
> >
> > When I use my shell and write:
> > "mpiexec -n 4 testprogram"
> > that output is produced:
> > Process: 0Array D= 3.000000
> > Array D= 4.000000
> > Array D= 5.000000
> > Array D= 6.000000
> >
> >
> > thx and best regards
> > ruwn
> >
> >
> > here the code:
> >
> > #include <stdlib.h>
> > #include <stdio.h>
> > #include <time.h>
> > #include <mpi.h>
> >
> > #define TAG 123
> >
> > int main (int argc, char **argv)
> > {
> > int i;
> > int myrank, nprocs;
> > int namelen;
> > char name[MPI_MAX_PROCESSOR_NAME];
> >
> > MPI_Status status;
> >
> > /* MPI initialisieren und Argumente setzen */
> > MPI_Init(&argc, &argv);
> >
> > /* Anzahl der Prozesse erfragen */
> > MPI_Comm_size(MPI_COMM_WORLD, &nprocs);
> >
> > /* Eigenen Rang erfragen */
> > MPI_Comm_rank(MPI_COMM_WORLD, &myrank);
> >
> > /* Rechnernamen erfragen */
> > MPI_Get_processor_name(name, &namelen);
> >
> > if (myrank==0) {
> > printf("Process: %i", myrank);
> >
> > double A[4];
> > double D[4];
> > for (i=0;i<4;i++)
> > A[i]=i+1;
> > MPI_Send(A, 4, MPI_DOUBLE, 1, 0, MPI_COMM_WORLD);
> > MPI_Recv(D, 4, MPI_DOUBLE, 2, 0, MPI_COMM_WORLD, &status);
> > for (i=0;i<4;i++)
> > printf("Array D= %lf \n", D[i]);
> > }
> >
> > if (myrank == 1) {
> > printf("Process: %i", myrank);
> > double B[4];
> > MPI_Recv(B, 4, MPI_DOUBLE, 0, 0, MPI_COMM_WORLD, &status);
> > for (i=0;i<4;i++)
> > B[i]+=1;
> > MPI_Send(B, 4, MPI_DOUBLE, 2, 0, MPI_COMM_WORLD);
> > }
> >
> > if (myrank == 2) {
> > printf("Process: %i", myrank);
> > double C[4];
> > MPI_Recv(C, 4, MPI_DOUBLE, 1, 0, MPI_COMM_WORLD, &status);
> > for (i=0;i<4;i++)
> > C[i]+=1;
> > MPI_Send(C, 4, MPI_DOUBLE, 0, 0, MPI_COMM_WORLD);
> > }
> >
> > /* MPI geordnet beenden */
> > MPI_Finalize();
> >
> > return 0;
> > }
> >
> >
> >
> > _______________________________________________
> > ptp-user mailing list
> > ptp-user@xxxxxxxxxxx
> > https://dev.eclipse.org/mailman/listinfo/ptp-user
> >
> _______________________________________________
> ptp-user mailing list
> ptp-user@xxxxxxxxxxx
> https://dev.eclipse.org/mailman/listinfo/ptp-user
