parallel processing - OProfile with OpenMP -

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i using oprofile openmp parallelized code doing following,

$ gcc -i/usr/include/hdf5/serial/ -std=c11 -o3 -fopt-info -fopenmp sp_linsvm.c -o sp_linsvm -lhdf5_serial $ sudo ocount --events=cpu_clk_unhalted,llc_misses,llc_refs,mem_inst_retired,br_misp_exec, ./sp_linsvm events actively counted 22.0 seconds. event counts (scaled) /home/aidan/progs/linsvm/sp_linsvm:     event                    count                    % time counted     br_misp_exec             6,523,181                80.00     cpu_clk_unhalted         225,384,009,348          80.00     llc_misses               276,587,407              80.02     llc_refs                 1,098,236,806            80.00     mem_inst_retired         51,754,855,734           79.99

how know if events counted per cpu or whole? pretty sure whole close numbers if compiled without openmp, want sure.

default mode ocount ... ./program "command". understand, without -t (--separate-thread) or -c (--separate-cpu) options, data threads aggregated.

so, check documentation http://oprofile.sourceforge.net/doc/controlling-counter.html#controlling-ocount , try -t / -c options...

--separate-thread / -t option can used in conjunction either --process-list or --thread-list option display event counts on per-thread (per-process) basis. without option, counts aggregated.

--separate-cpu / -c option can used in conjunction either --system-wide or --cpu-list option display event counts on per-cpu basis. without option, counts aggregated.


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