[mpich2-dev] Tracing ROMIO

["Kwangho CHA"]

Dear All,
 
I’d like to trace and profile the behavior of ROMIO. For example, I want to measure the execution time of “ADIOI_Calc_my_off_len” function, when an application program calls ‘MPI_File_read_all’.
What is the best way to do this? 
 
When I checked the source code of “ADIOI_Calc_my_off_len”, I found the following parts;
 
#ifdef AGGREGATION_PROFILE
    MPE_Log_event (5028, 0, NULL);
#endif
 
So I tried to make MPICH2 library with ‘-DAGGREGATION_PROFILE’ and it seemed to generate new MPICH2 but I failed to use it as follow;

[khocha at compute-0-0 cio]$ mpicc ./mpi-tile-io.c -o mpi-tile-io -Wall -g -DHAVE_GETOPT_LONG
/opt/mpi2pvfs/lib/libmpich.a(ad_read_coll.o)(.text+0x2d): In function `ADIOI_Calc_my_off_len':
/kyle/mpich2-1.1/src/mpi/romio/adio/common/ad_read_coll.c:308: undefined reference to `MPE_Log_event'
/opt/mpi2pvfs/lib/libmpich.a(ad_read_coll.o)(.text+0x397):/kyle/mpich2-1.1/src/mpi/romio/adio/common/ad_read_coll.c:501: undefined reference to `MPE_Log_event'
 
What should I do to make the ROMIO which can use ‘MPE_Log_event’? 
 
Thanks,
 
Kwangho CHA


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