LAM/MPI General User's Mailing List Archives

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>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
>>