You should probably consult the valgrind documentation; that's out of
the scope of this mailing list.
On Jan 13, 2007, at 7:34 AM, Roberto Lema wrote:
> With --with-purify option I get rid of that errors, but I am
> interested in
> check the
> memory leaks. I am running a "hello world" program, with a malloc
> and the
> memcheck
> does not detect that this pointer is not free.
>
> Is possible check this leaks with valgrind?
>
>> ==8546== malloc/free: in use at exit: 0 bytes in 0 blocks.
>> ==8546== malloc/free: 0 allocs, 0 frees, 0 bytes allocated.
>
>
> thanks
>
>>
>> I am new using lam-mpi and I am using valgrind with the tool
>> memcheck to
>> find the memory leaks.
>> The result, show below, does not detect leaks when I have put
>> several in my
>> code.
>>
>> In the mailing list tell, that I can use valgrind with lam-mpi but
>> I can't
>> see the leaks.
>>
>> I execute the next command with more options of valgrind:
>>
>> mpirun -v -np 1 valgrind -v ./lab
>>
>> If I put first valgrind than mpirun, the out shows the leaks of
>> mpirun.
>>
>> Is it neccesary install lam-mpi with the purify option to check
>> leaks? this
>> option is only for the syscall param errors?
>>
>> very thanks and excuse me for my English.
>>
>>
>> --8546--
>> --8546-- supp: 3 Fedora-Core-5-hack2a
>> ==8546==
>> ==8546== IN SUMMARY: 40 errors from 8 contexts (suppressed: 3 from 1)
>> ==8546==
>>
>> **************************************************************
>> ==8546== malloc/free: in use at exit: 0 bytes in 0 blocks.
>> ==8546== malloc/free: 0 allocs, 0 frees, 0 bytes allocated.
>> *************************************************************
>> ==8546==
>> ==8546== All heap blocks were freed -- no leaks are possible.
>> --8546-- memcheck: sanity checks: 3 cheap, 1 expensive
>> --8546-- memcheck: auxmaps: 0 auxmap entries (0k, 0M) in use
>> --8546-- memcheck: auxmaps: 0 searches, 0 comparisons
>> --8546-- memcheck: secondaries: 15 issued (960k, 0M)
>> --8546-- memcheck: secondaries: 25 accessible and distinguished
>> (1600k,
>> 1M)
>> --8546-- tt/tc: 10,300 tt lookups requiring 10,611 probes
>> --8546-- tt/tc: 10,300 fast-cache updates, 3 flushes
>> --8546-- translate: new 4,975 (121,988 -> 1,738,326; ratio
>> 142:10)
>> [0 scs]
>> --8546-- translate: dumped 0 (0 -> ??)
>> --8546-- translate: discarded 6 (146 -> ??)
>> --8546-- scheduler: 172,259 jumps (bb entries).
>> --8546-- scheduler: 3/5,548 major/minor sched events.
>> --8546-- sanity: 4 cheap, 1 expensive checks.
>> --8546-- exectx: 30,011 lists, 36 contexts (avg 0 per list)
>> --8546-- exectx: 43 searches, 7 full compares (162 per 1000)
>> --8546-- exectx: 0 cmp2, 125 cmp4, 0 cmpAll
>>
>
> _________________________________________________________________
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--
Jeff Squyres
Server Virtualization Business Unit
Cisco Systems
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