[MPICH] MPE loggin question

[Anthony Chan]

See the section "VI. a) CUSTOMIZING LOGFILES" under mpich2/src/mpe2/README
or the old MPE userguide in MPICH-1
http://www-unix.mcs.anl.gov/mpi/mpich/docs/mpeman/node7.htm#Node10

You only put in MPE_Init_log()/MPE_Finish_log() if you don't want
automatic MPI logging, i.e compiled your code with "mpicc -mpe=log".
If automatic MPI logging is needed, you do NOT need to put in
MPE_Init_log()/MPE_Finish_log() in your code, i.e. compiled with
"mpicc -mpe=mpilog".

PS.  "mpicc -mpe=xxx" feature is only available in mpich2-1.0.3.
do "mpicc -mpe=help" for more options.

A.Chan


On Fri, 9 Dec 2005, Wolfram Brenig wrote:

> Hello,
>
> trying to use MPE-loggin, I'm am experiencing
> the problem that even the most elementary
> 'code' - shown below - fails for me
>
> #include <mpi.h>
> #include <mpe.h>
> int main(int argc, char* argv[]) {
>   int p,r;
>   MPI_Init(&argc,&argv);
>   MPI_Comm_size(MPI_COMM_WORLD,&p);
>   MPI_Comm_rank(MPI_COMM_WORLD,&r);
>
>   MPE_Init_log();                   // *1*
>
>   MPE_Finish_log("tessimessi");     // *2*
>
>   MPI_Finalize();
>   return 0;
> }
>
> This 'program' compiles with no warning/error,
> but on execution causes the output:
>
> Enabling the synchronization of the clocks...
> rank 2 in job 11  dell1_1130   caused collective abort of all ranks
>    exit status of rank 2: killed by signal 11
> rank 0 in job 11  dell1_1130   caused collective abort of all ranks
>    exit status of rank 0: killed by signal 9
>
> Commenting away lines *1* and *2*, i.e. leaving out the MPE,
> the problem disappears.
>
> The MPI version I have at hand is:
> ~> mpich2version
> Version:           1.0.2
> Device:            ch3:sock
> Configure Options: --enable-sharedlibs=gcc CFLAGS=-O3 -march=pentium4m
> CXXFLAGS=-O3 -march=pentium4m
>
> The MPE came with the package.
>
> Any help would be most welcome.
> Wolfram
>
>