Re: [OMPI users] Newbie doubt.
Can you narrow down the problem a bit? Have you run through a debugger, perchance, to see if anything turns up? Is your code working (running to completion and producing correct answers) at low process counts, etc.? On Sep 19, 2008, at 5:01 PM, Davi Vercillo C. Garcia (デビッド) wrote: Hello again, My code evolved and I'm having more problems that I cannot solve. When I execute it, using a hight number of processes, it crashes. And I'm using MPI_Write but there's nothing in output file. My code can be found at: http://pastebin.com/d1ea278f1 -- Davi Vercillo Carneiro Garcia http://davivercillo.blogspot.com/ Universidade Federal do Rio de Janeiro Departamento de Ciência da Computação DCC-IM/UFRJ - http://www.dcc.ufrj.br Grupo de Usuários GNU/Linux da UFRJ (GUL-UFRJ) http://www.dcc.ufrj.br/~gul Linux User: #388711 http://counter.li.org/ "Theory is when you know something, but it doesn't work. Practice is when something works, but you don't know why. Programmers combine theory and practice: Nothing works and they don't know why." - Anon ___ users mailing list us...@open-mpi.org http://www.open-mpi.org/mailman/listinfo.cgi/users -- Jeff Squyres Cisco Systems
Re: [OMPI users] Newbie doubt.
Hello again, My code evolved and I'm having more problems that I cannot solve. When I execute it, using a hight number of processes, it crashes. And I'm using MPI_Write but there's nothing in output file. My code can be found at: http://pastebin.com/d1ea278f1 -- Davi Vercillo Carneiro Garcia http://davivercillo.blogspot.com/ Universidade Federal do Rio de Janeiro Departamento de Ciência da Computação DCC-IM/UFRJ - http://www.dcc.ufrj.br Grupo de Usuários GNU/Linux da UFRJ (GUL-UFRJ) http://www.dcc.ufrj.br/~gul Linux User: #388711 http://counter.li.org/ "Theory is when you know something, but it doesn't work. Practice is when something works, but you don't know why. Programmers combine theory and practice: Nothing works and they don't know why." - Anon
Re: [OMPI users] Newbie doubt.
Hi, > Yuo must close the File using > MPI_File_close(MPI_File *fh) > before calling MPI_Finalize. Newbie question... newbie problem ! UHiauhiauh... Thanks !!! > By the way i think you shouldn't do > strcat(argv[1], ".bz2"); > This would overwrite any following arguments. I know... I was just trying ! =D -- Davi Vercillo Carneiro Garcia http://davivercillo.blogspot.com/ Universidade Federal do Rio de Janeiro Departamento de Ciência da Computação DCC-IM/UFRJ - http://www.dcc.ufrj.br Grupo de Usuários GNU/Linux da UFRJ (GUL-UFRJ) http://www.dcc.ufrj.br/~gul Linux User: #388711 http://counter.li.org/ "Good things come to those who... wait." - Debian Project "A computer is like air conditioning: it becomes useless when you open windows." - Linus Torvalds
Re: [OMPI users] Newbie doubt.
Hi
Yuo must close the File using
MPI_File_close(MPI_File *fh)
before calling MPI_Finalize.
By the way i think you shouldn't do
strcat(argv[1], ".bz2");
This would overwrite any following arguments.
Jody
On Wed, Sep 17, 2008 at 5:13 AM, Davi Vercillo C. Garcia (デビッド)
wrote:
> Hi,
>
> I'm starting to use OpenMPI and I'm having some troubles. I wrote a
> simple program that tries to open files using the function
> MPI_File_open(). Like below:
>
> #include
> #include
> #include
>
> #include
>
> int processoPrincipal(void);
> int processosEscravos(void);
>
> int main(int argc, char** argv) {
>int meuRank, numeroProcessos;
>MPI_File arquivoEntrada, arquivoSaida;
>
>MPI_Init(&argc, &argv);
>MPI_Comm_rank(MPI_COMM_WORLD, &meuRank);
>MPI_Comm_size(MPI_COMM_WORLD,&numeroProcessos);
>
>MPI_File_open(MPI_COMM_WORLD, argv[1], MPI_MODE_RDONLY,
> MPI_INFO_NULL, &arquivoEntrada);
>strcat(argv[1], ".bz2");
>MPI_File_open(MPI_COMM_WORLD, argv[1], MPI_MODE_RDWR |
> MPI_MODE_CREATE, MPI_INFO_NULL, &arquivoSaida);
>
>if (meuRank != 0) {
>processoPrincipal();
>} else {
>processosEscravos();
>}
>
>MPI_Finalize();
>return 0;
> }
>
> But I'm getting a error message like:
>
> *** An error occurred in MPI_Barrier
> *** An error occurred in MPI_Barrier
> *** after MPI was finalized
> *** MPI_ERRORS_ARE_FATAL (goodbye)
> *** after MPI was finalized
> *** MPI_ERRORS_ARE_FATAL (goodbye)
>
> What is this ?
>
> --
> Davi Vercillo Carneiro Garcia
> http://davivercillo.blogspot.com/
>
> Universidade Federal do Rio de Janeiro
> Departamento de Ciência da Computação
> DCC-IM/UFRJ - http://www.dcc.ufrj.br
>
> Grupo de Usuários GNU/Linux da UFRJ (GUL-UFRJ)
> http://www.dcc.ufrj.br/~gul
>
> Linux User: #388711
> http://counter.li.org/
>
> "Good things come to those who... wait." - Debian Project
>
> "A computer is like air conditioning: it becomes useless when you open
> windows." - Linus Torvalds
>
> ___
> users mailing list
> us...@open-mpi.org
> http://www.open-mpi.org/mailman/listinfo.cgi/users
[OMPI users] Newbie doubt.
Hi,
I'm starting to use OpenMPI and I'm having some troubles. I wrote a
simple program that tries to open files using the function
MPI_File_open(). Like below:
#include
#include
#include
#include
int processoPrincipal(void);
int processosEscravos(void);
int main(int argc, char** argv) {
int meuRank, numeroProcessos;
MPI_File arquivoEntrada, arquivoSaida;
MPI_Init(&argc, &argv);
MPI_Comm_rank(MPI_COMM_WORLD, &meuRank);
MPI_Comm_size(MPI_COMM_WORLD,&numeroProcessos);
MPI_File_open(MPI_COMM_WORLD, argv[1], MPI_MODE_RDONLY,
MPI_INFO_NULL, &arquivoEntrada);
strcat(argv[1], ".bz2");
MPI_File_open(MPI_COMM_WORLD, argv[1], MPI_MODE_RDWR |
MPI_MODE_CREATE, MPI_INFO_NULL, &arquivoSaida);
if (meuRank != 0) {
processoPrincipal();
} else {
processosEscravos();
}
MPI_Finalize();
return 0;
}
But I'm getting a error message like:
*** An error occurred in MPI_Barrier
*** An error occurred in MPI_Barrier
*** after MPI was finalized
*** MPI_ERRORS_ARE_FATAL (goodbye)
*** after MPI was finalized
*** MPI_ERRORS_ARE_FATAL (goodbye)
What is this ?
--
Davi Vercillo Carneiro Garcia
http://davivercillo.blogspot.com/
Universidade Federal do Rio de Janeiro
Departamento de Ciência da Computação
DCC-IM/UFRJ - http://www.dcc.ufrj.br
Grupo de Usuários GNU/Linux da UFRJ (GUL-UFRJ)
http://www.dcc.ufrj.br/~gul
Linux User: #388711
http://counter.li.org/
"Good things come to those who... wait." - Debian Project
"A computer is like air conditioning: it becomes useless when you open
windows." - Linus Torvalds
