[petsc-dev] writing PETSc code with no memory leaks

Barry Smith bsmith at mcs.anl.gov
Tue May 10 16:02:08 CDT 2011


On May 10, 2011, at 3:50 PM, Lisandro Dalcin wrote:

> On 10 May 2011 05:27, Barry Smith <bsmith at mcs.anl.gov> wrote:
>> 
>>   I find it very useful when writing PETSc code to keep the environmental variable
>> 
>> export PETSC_OPTIONS="-malloc -malloc_debug -malloc_dump"
>> 
>> where I run my test programs. This helps me see memory leaks immediately (where I forgot to destroy some objects or free some memory) rather than tracking down a ton of memory leaks months later. Suggest others do the same.
>> 
> 
> Is this used when you "make testexamples" ?

    Yes.  Occasionally I see a bad example or code and have to fix it. Though actually it is generally pretty clean.


   Barry

> 
> 
> -- 
> Lisandro Dalcin
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