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improve memory usage reporting in info and output class

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This commit is contained in:
Axel Kohlmeyer
2017-03-16 18:35:04 -04:00
parent 3a2da51a82
commit 070ce33a13
3 changed files with 69 additions and 37 deletions
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13
src/output.cpp
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@ -812,9 +812,9 @@ void Output::create_restart(int narg, char **arg)
sum and print memory usage
result is only memory on proc 0, not averaged across procs
------------------------------------------------------------------------- */
void Output::memory_usage()
{
bigint bytes = 0;
bytes += atom->memory_usage();
bytes += neighbor->memory_usage();
@ -825,11 +825,18 @@ void Output::memory_usage()
for (int i = 0; i < ndump; i++) bytes += dump[i]->memory_usage();
double mbytes = bytes/1024.0/1024.0;
double mbavg,mbmin,mbmax;
MPI_Reduce(&mbytes,&mbavg,1,MPI_DOUBLE,MPI_SUM,0,world);
MPI_Reduce(&mbytes,&mbmin,1,MPI_DOUBLE,MPI_MIN,0,world);
MPI_Reduce(&mbytes,&mbmax,1,MPI_DOUBLE,MPI_MAX,0,world);
mbavg /= comm->nprocs;
if (comm->me == 0) {
if (screen)
fprintf(screen,"Memory usage per processor = %g Mbytes\n",mbytes);
fprintf(screen,"Per MPI rank memory allocation (min/avg/max) = "
"%.4g | %.4g | %.4g Mbytes\n",mbmin,mbavg,mbmax);
if (logfile)
fprintf(logfile,"Memory usage per processor = %g Mbytes\n",mbytes);
fprintf(logfile,"Per MPI rank memory allocation (min/avg/max) = "
"%.4g | %.4g | %.4g Mbytes\n",mbmin,mbavg,mbmax);
}
}