On May 22, 2013, at 8:32 PM, Colin McAuliffe <[email protected]> wrote:
> According to gdb the program goes here
>
> 110: #elif defined(PETSC_HAVE_TASK_INFO)
> 111: *mem = 0;
>
> The configuration flags from my petsc compilation indicate that both
> PETSC_HAVE_TASK_INFO and PETSC_HAVE_GETRUSAGE are 1. I'm not sure what have
> task info is supposed to do, is it safe to set it to 0 to see if this fixes
> the problem?
Remove the PETSC_HAVE_TASK_INFO stuff completely and then rerun make and
see if it solves the problem.
At some point the TASK_INFO stuff worked on the Apple some years ago,
perhaps they turned if off.
Barry
>
> Quoting Barry Smith <[email protected]>:
>
>>
>> On May 22, 2013, at 7:06 PM, Colin McAuliffe <[email protected]> wrote:
>>
>>> Hi Barry, thanks for the quick response.
>>>
>>> I am using os x and so I would expect that petsc would be able to use
>>> getrusage in the following lines of mem.c:
>>>
>>> 115: #elif defined(PETSC_HAVE_GETRUSAGE)
>>> 116: getrusage(RUSAGE_SELF,&temp);
>>>
>>> Is this not the case?
>>
>> You can run in the debugger, put a break point at that line to verify it
>> goes there and if it does check the values of temp after the call.
>> (Sometimes Apple's docs are more optimistic than reality.)
>>
>> Barry
>>
>>>
>>> Here is the link to apple's getrusage manual page
>>> http://developer.apple.com/library/mac/#documentation/Darwin/Reference/ManPages/10.7/man2/getrusage.2.html
>>>
>>> Quoting Barry Smith <[email protected]>:
>>>
>>>>
>>>> Colin,
>>>>
>>>> PetscMemoryGetCurrentUsage() and MaximumUsage() us calls to the
>>>> underlying operating system to get how much memory the process is using,
>>>> as such they will also include external package memory. Unfortunately it
>>>> depends on the operating system providing this information and often it
>>>> does not, this is why you get 0. If you are a hacker you could look at
>>>> the source for PetscMemoryGetCurrentUsage() and see how to get the
>>>> information for your OS and add it to this routine.
>>>>
>>>> Barry
>>>>
>>>>
>>>>
>>>> On May 22, 2013, at 6:31 PM, Colin McAuliffe <[email protected]> wrote:
>>>>
>>>>> Hi all,
>>>>>
>>>>> When calling PetscMemoryGetCurrentUsage or PetscMemoryGetMaximumUsage
>>>>> in a fortran code the memory usage returned is always zero. Adding
>>>>> command line options such as -malloc_log and -memory_info doesn't
>>>>> change this result. Is there something else I'm missing? Also, will use
>>>>> of these two functions give memory used by external packaged called by
>>>>> petsc?
>>>>>
>>>>> All the best,
>>>>> Colin
>>>>>
>>>>> --
>>>>> Colin McAuliffe
>>>>> PhD Candidate
>>>>> Columbia University
>>>>> Department of Civil Engineering and Engineering Mechanics
>>>>
>>>>
>>>>
>>>
>>>
>>>
>>> --
>>> Colin McAuliffe
>>> PhD Candidate
>>> Columbia University
>>> Department of Civil Engineering and Engineering Mechanics
>>
>>
>>
>
>
>
> --
> Colin McAuliffe
> PhD Candidate
> Columbia University
> Department of Civil Engineering and Engineering Mechanics
