Commit cc85045e authored by Kevin Harms's avatar Kevin Harms

Add additional timing info for the MPI_Bcast portion of shutdown.


git-svn-id: https://svn.mcs.anl.gov/repos/darshan/trunk@302 3b7491f3-a168-0410-bf4b-c445ed680a29
parent b7e1f5d3
......@@ -228,6 +228,7 @@ void darshan_shutdown(int timing_flag)
void* pointers[CP_MAX_MEM_SEGMENTS];
int ret;
double red1=0, red2=0, gz1=0, gz2=0, write1=0, write2=0, tm_end=0;
double bcst1=0, bcst2=0, bcst3=0;
int nprocs;
char* trailing_data = NULL;
int i, j;
......@@ -310,10 +311,14 @@ void darshan_shutdown(int timing_flag)
memcpy(mnt_id_array_root, mnt_id_array,
CP_MAX_MNTS*sizeof(int64_t));
}
bcst1=MPI_Wtime();
MPI_Bcast(mnt_id_array_root, CP_MAX_MNTS*sizeof(int64_t), MPI_BYTE, 0,
MPI_COMM_WORLD);
MPI_Bcast(mnt_hash_array_root, CP_MAX_MNTS*sizeof(uint64_t), MPI_BYTE, 0,
MPI_COMM_WORLD);
bcst2=MPI_Wtime();
/* identify any common mount points that have different device ids on
* non-root processes
*/
......@@ -400,6 +405,7 @@ void darshan_shutdown(int timing_flag)
}
/* broadcast log file name */
bcst3=MPI_Wtime();
MPI_Bcast(logfile_name, PATH_MAX, MPI_CHAR, 0, MPI_COMM_WORLD);
final_job->log_job.end_time = time(NULL);
......@@ -466,9 +472,11 @@ void darshan_shutdown(int timing_flag)
double gz_tm, gz_slowest;
double write_tm, write_slowest;
double all_tm, all_slowest;
double bcst_tm, bcst_slowest;
tm_end = MPI_Wtime();
bcst_tm=(bcst2-bcst1)+(red1-bcst3);
red_tm = red2-red1;
gz_tm = gz2-gz1;
write_tm = write2-write1;
......@@ -482,11 +490,14 @@ void darshan_shutdown(int timing_flag)
MPI_DOUBLE, MPI_MAX, MPI_COMM_WORLD);
MPI_Allreduce(&all_tm, &all_slowest, 1,
MPI_DOUBLE, MPI_MAX, MPI_COMM_WORLD);
MPI_Allreduce(&bcst_tm, &bcst_slowest, 1,
MPI_DOUBLE, MPI_MAX, MPI_COMM_WORLD);
if(rank == 0)
{
MPI_Comm_size(MPI_COMM_WORLD, &nprocs);
printf("#<op>\t<nprocs>\t<time>\n");
printf("bcst\t%d\t%f\n", nprocs, bcst_slowest);
printf("reduce\t%d\t%f\n", nprocs, red_slowest);
printf("gzip\t%d\t%f\n", nprocs, gz_slowest);
printf("write\t%d\t%f\n", nprocs, write_slowest);
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment