[mpich-discuss] MPI_Win_free failed

[Sufeng Niu]

Hello,

I used MPI_Win_free, and it returns error code: 45, Invalid MPI_Win. I
checked all my code, but I still cannot find out where is the problem. I
was wondering any one can give a suggestion?

I defined win as
MPI_Win win;

in RMA, I create a sub communicator: MPI_FOR_WORLD
MPI_Win_create(image_buff, 2*image_info->image_size*sizeof(uint16),
sizeof(uint16), MPI_INFO_NULL, MPI_FOR_WORLD, win);

In other MPI_FOR_WORLD process:
MPI_Win_create(MPI_BOTTOM, 0, sizeof(uint16), MPI_INFO_NULL, MPI_FOR_WORLD,
win);

I use MPI_Get, just as normal thing. no mem violation.

free it as
MPI_Win_free(&win);

I still cannot figure out why it keeps saying MPI_Win_free failed. Thank
you very much for any suggestions.

-- 
Best Regards,
Sufeng Niu
ECASP lab, ECE department, Illinois Institute of Technology
Tel: 312-731-7219
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mpich.org/pipermail/discuss/attachments/20130723/8b1df388/attachment.html>