[mpich-discuss] MPI_Win_free failed

Sufeng Niu sniu at hawk.iit.edu
Tue Jul 23 18:10:45 CDT 2013


sure, no problem. but I guess svn maybe easier. since there is some images
file to run it. Can you use svn to clone it?

it is: https://subversion.xray.aps.anl.gov/detpool/SUFENGNIU/MPI_Compression

just make, you need two terminals to run it. one terminal type: ./run.perl
main
the second terminal type: ./udp_client 55Fe_run5.tif

which is that the first terminal send the data, the second terminal receive
it and process it.

Thank you so much. Due to my limited knowledge I didn't find out where is
the problem.

once again, thanks a lot!

Sufeng


On Tue, Jul 23, 2013 at 6:00 PM, Pavan Balaji <balaji at mcs.anl.gov> wrote:

>
> Can you send us a simple program that gives this error?
>
>  -- Pavan
>
>
> On 07/23/2013 05:55 PM, Sufeng Niu wrote:
>
>> 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 <tel:312-731-7219>
>>
>>
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>>
> --
> Pavan Balaji
> http://www.mcs.anl.gov/~balaji
>



-- 
Best Regards,
Sufeng Niu
ECASP lab, ECE department, Illinois Institute of Technology
Tel: 312-731-7219
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