[mpich-discuss] [mpich2-discuss]How to output debug info?

[clara]

I built mpich2 with the below command line:
./configure --prefix=/usr/local/mpich2-32 --with-pm=hydra:gforker
--disable-faster --enable-debuginfo --enable-g=dbg,log CFLAGS=-m32
CXXFLAGS=-m32 FFLAGS=-m32 FCFLAGS=-m32 2>&1 | tee mpich2-32cfg.txt

I follow the http://wiki.mcs.anl.gov/mpich2/index.php/Debug_Event_Logging and
try to use below command line to run an MPI program but fail
/usr/local/mpich2-32/bin/mpiexec -mpich-dbg file -mpich-dbg-class=all -n 4
sp.S.4

Can anyone tell me how to output debug info when running MPI programs?
Thanks.

- Clara
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