[MPICH] Define MPE_LOG_BYTES size

[Francisco Javier García Blas]

Hi All,

I am using the last version of MPICH2, 1.0.6, and working with MPE I/O 
wrappers (log_mpi_io.c). I use MPE_Log_pack to store additional info 
about file access. My problem is the record size that MPE uses to store 
info. I found in logging/src/mpe_log.c that the output byte buffer which 
is of sizeof(MPE_LOG_BYTES),  32 bytes.
In logging/include/mpe_log.h, I can re-define this size but I did not 
find nothing about MPE_LOG_BYTES in CLOG.

I do not know if I have to re-define another consts or this change is 
sufficient.

Thanks,
Javier.