Thanks Barry. It helps a lot.
Alan
On 8/30/2012 6:18 PM, Barry Smith wrote:
> On Aug 30, 2012, at 6:08 PM, "Zhenglun (Alan) Wei" <zhenglun.wei at
> gmail.com> wrote:
>
>> Dear All,
>> I hope you're having a nice day.
>> I coded my program based on the /src/ksp/ksp/example/tutorial/ex45.c.
>> However, I met a problem that the memory is accumulating while the program
>> is running. I have a doubt on the DMDAVecGetArray(da, b, &bb) and
>> DMDAVecRestoreArray(da,b,&bb). Does the former one allocate any memory for
>> 'bb'? If so, does the later one free the memory allocated for the 'bb'?
> You must match each DMDAVecGetArray with a DMDAVecRestoreArray() or you
> may bleed memory
>
>> BTW, I just installed the Valgrind. Is there any useful commands in
>> Valgrind can monitor the memory of all the arrays in my program in real time
>> so that I can detect which array keeps requesting the memory?
> It is easy to simply using -malloc -malloc_debug -malloc_dump to see all
> the memory that was allocated and not freed.
>
> Barry
>
>> thanks,
>> Alan
