[MPICH] test/mpi/comm/cmfree.c

[Toon Knapen]

William Gropp wrote:
> This was fixed after 1.0.5 was released, and isn't included in the 
> 1.0.5p4 code (I believe).  


OK. Thanks for the info.



> Our own memory leak checker caught it :)


It's kind of silly to ask but I guess you're joking, right? Or is mpich2 
able to trace leaks (e.g. MPI_Group's that are constructed but never 
free'd).


> 
> Bill
> 
> On Jul 12, 2007, at 6:51 AM, Toon Knapen wrote:
> 
>> Hi all,
>>
>> IMO test/mpi/comm/cmfree.c in mpich2-1.0.5p4 there is one 
>> MPI_Comm_free missing.
>>
>> On line 29, there is a `MPI_Comm_dup(MPI_COMM_WORLD,&comm)`. However 
>> the comm that gets created here is only freed if 'rank == dest' on 
>> line 54. In all ranks that are not equal to 'dest', the communicator 
>> is never freed.
>>
>> Of course, this is not an error (just a leak) but wanted to let you 
>> know nevertheless,
>>
>> toon
>>
>