yes, i'm using 1.4.2 Thanks Jody
On Mon, Jul 12, 2010 at 10:38 AM, Ralph Castain <r...@open-mpi.org> wrote: > > On Jul 12, 2010, at 2:17 AM, jody wrote: > >> Hi >> >> I have a master process which spawns a number of workers of which i'd >> like to save the output in separate files. >> >> Usually i use the '-output-filename' option in such a situation. >> However, if i do >> mpirun -np 1 -output-filename work_out master arg1 arg2 >> all the files work_out.1, work_out.2, ... are ok, >> but work_out.0 contains both outputs of the master process(process 0 >> in COMM_WORLD) and >> of the first worker (process 0 in the communicator of the spawned processes). > > Crud - that's a bug. > >> >> I also tried the '-tag-output' option, but this involves several >> additional steps, >> because i have to separate the combined outputs >> mpirun -np 1 -tag-output master arg1 arg2 > total.out >> grep "\[1,0\]" total.out | sed 's/\[1,0\]<stdout>://' > master.out >> grep "\[2,0\]" outA | sed 's/\[2,0\]<stdout>://' > worker_0.out >> grep "\[2,1\]" outA | sed 's/\[2,1\]<stdout>://' > worker_1.out >> ... >> Of course, this could be wrapped in a script, but it is a bit cumbersome >> (and i am not sure if the job-ids are always "1" and "2") ... >> >> Is there some simpler way to separate the output of the two streams? > > Not really. > >> >> If not, would it be possible to extend the -output-filename option i >> such a way that it >> would also combine job-id and rank withe the output file: >> work_out.1.0 >> for the master's output, and >> work_out.2.0 >> work_out.2.1 >> work_out.2.2 >> ... >> for the worker's output? > > Yeah, I can do that - will put something together. Are you doing this in the > 1.4 series? > >> >> Thank You >> Jody >> _______________________________________________ >> users mailing list >> us...@open-mpi.org >> http://www.open-mpi.org/mailman/listinfo.cgi/users > > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users >
