Jeremiah --
Is this the same as:
https://svn.open-mpi.org/trac/ompi/ticket/2656
On Jan 6, 2011, at 3:58 PM, Jeremiah Willcock wrote:
> When I run the following program on one rank using Open MPI 1.5:
>
> #include <mpi.h>
> #include <stdlib.h>
> #include <string.h>
>
> int main(int argc, char** argv) {
> int size = 128;
> unsigned char one = 1;
> MPI_Init(&argc, &argv);
> unsigned char* data = (unsigned char*)malloc(size * sizeof(unsigned char));
> memset(data, 0, size * sizeof(unsigned char));
> MPI_Win data_win;
> MPI_Win_create((void*)data, size * sizeof(unsigned char), sizeof(unsigned
> char), MPI_INFO_NULL, MPI_COMM_WORLD, &data_win);
> MPI_Win_fence(0, data_win);
> MPI_Accumulate((void*)&one, 1, MPI_UNSIGNED_CHAR, 0, 0, 1,
> MPI_UNSIGNED_CHAR, MPI_REPLACE, data_win);
> MPI_Win_fence(0, data_win);
> MPI_Win_free(&data_win);
> free(data);
> MPI_Finalize();
> return 0;
> }
>
> I receive the following error message:
>
> [flowerpot.osl.iu.edu:13803] *** An error occurred in MPI_Accumlate
> [flowerpot.osl.iu.edu:13803] *** on win 3
> [flowerpot.osl.iu.edu:13803] *** MPI_ERR_INTERN: internal error
> [flowerpot.osl.iu.edu:13803] *** MPI_ERRORS_ARE_FATAL (your MPI job will now
> abort)
>
> I am running on 64-bit x86 Linux. The code is sensitive to the value of
> "size" (smaller values such as 64 do not cause errors). Is this an issue
> that is fixed in OMPI 1.5.1? Is it known otherwise?
>
> -- Jeremiah Willcock
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--
Jeff Squyres
jsquy...@cisco.com
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