Hi Shiqing, > It seems that the runtime environment is messed up with the different > versions of Open MPI. I suggest you completely remove all the > installations and install 1.6.1 again (just build the installation > project again). It should work without any problem under Cygwin too.
I removed openmpi-1.6 und rebuilt openmpi-1.6.1. Now I can compile and run a program in 32-bit mode but have still some problems. D:\...\prog\mpi\small_prog>mpicc init_finalize.c Microsoft (R) 32-Bit C/C++-Optimierungscompiler Version 16.00.40219.01 für 80x86 Copyright (C) Microsoft Corporation. Alle Rechte vorbehalten. init_finalize.c Microsoft (R) Incremental Linker Version 10.00.40219.01 Copyright (C) Microsoft Corporation. All rights reserved. /out:init_finalize.exe "/LIBPATH:C:\Program Files (x86)\openmpi-1.6.1\bin/../lib" libmpi.lib libopen-pal.lib libopen-rte.lib advapi32.lib Ws2_32.lib shlwapi.lib init_finalize.obj D:\...\prog\mpi\small_prog>mpiexec init_finalize.exe --------------------------------------------------------------------- Sorry! You were supposed to get help about: invalid if_inexclude But I couldn't open the help file: D:\...\prog\mpi\small_prog\..\share\openmpi\help-mpi-btl-tcp.txt: No such file or directory. Sorry! --------------------------------------------------------------------- Hello! Why does "mpiexec" look for the help file relativ to my current program and not relative to itself? The file is part of the package. dir "c:\Program Files (x86)\openmpi-1.6.1\share\openmpi\help-mpi-btl-tcp.txt" ... 03.04.2012 16:30 631 help-mpi-btl-tcp.txt Must I change something in the source code or can I set an environment variable for help files? Why does "mpiexec" want to give some help at all? I don't get this message for openmpi-1.5.1. D:\...\prog\mpi\small_prog>mpicc init_finalize.c Microsoft (R) 32-Bit C/C++-Optimierungscompiler Version 16.00.40219.01 für 80x86 Copyright (C) Microsoft Corporation. Alle Rechte vorbehalten. init_finalize.c Microsoft (R) Incremental Linker Version 10.00.40219.01 Copyright (C) Microsoft Corporation. All rights reserved. /out:init_finalize.exe "/LIBPATH:C:/Program Files (x86)/openmpi-1.5.1/lib" libmpi.lib libopen-pal.lib libopen-rte.lib advapi32.lib Ws2_32.lib shlwapi.lib init_finalize.obj D:\...\prog\mpi\small_prog>mpiexec init_finalize.exe Hello! D:\...\prog\mpi\small_prog> I can also compile in 64-bit mode but the program hangs. D:\...\prog\mpi\small_prog>mpicc init_finalize.c Microsoft (R) C/C++-Optimierungscompiler Version 16.00.40219.01 für x64 Copyright (C) Microsoft Corporation. Alle Rechte vorbehalten. init_finalize.c Microsoft (R) Incremental Linker Version 10.00.40219.01 Copyright (C) Microsoft Corporation. All rights reserved. /out:init_finalize.exe "/LIBPATH:C:\Program Files\openmpi-1.6.1\bin/../lib" libmpi.lib libopen-pal.lib libopen-rte.lib advapi32.lib Ws2_32.lib shlwapi.lib init_finalize.obj D:\...\prog\mpi\small_prog>mpiexec init_finalize.exe ^C D:\...\prog\mpi\small_prog> It's the same if I compile a 64-bit program with openmpi-1.5.1. The program itself is very small. #include <stdio.h> #include <stdlib.h> #include "mpi.h" int main (int argc, char *argv[]) { MPI_Init (&argc, &argv); printf ("Hello!\n"); MPI_Finalize (); return EXIT_SUCCESS; } Any ideas why the 64-bit version hangs? Thank you very much for any help in advance. Kind regards Siegmar