This patch can be applied to the HPL program to provide a simple progress output Every 8 NB values the present progress (0-N) will be displayed by rank 0. When making large HPL runs this can be useful to get a feeling as to how far the run has progressed and how fast it is running. To apply this patch: cd /usr/src/opa/mpi_apps patch -p0 < hpl-count.diff make clean make quick To remove this patch: cd /usr/src/opa/mpi_apps patch -R -p0 < hpl-count.diff make clean make quick Note rebuilding HPL will replace the HPL.dat file. Also after rebuilding HPL you need to copy the new executable to all the nodes (or in the case of this patch to at least rank 0) diff -c -r hpl/src/pgesv/HPL_pdgesv0.c ./HPL_pdgesv0.c *** hpl/src/pgesv/HPL_pdgesv0.c Tue Jan 13 19:51:40 2004 --- hpl/src/pgesv/HPL_pdgesv0.c Tue Jan 13 20:03:50 2004 *************** *** 118,123 **** */ for( j = 0; j < N; j += nb ) { n = N - j; jb = Mmin( n, nb ); /* * Release panel resources - re-initialize panel data structure --- 118,125 ---- */ for( j = 0; j < N; j += nb ) { + if (GRID->myrow == 0 && GRID->mycol == 0 && (j/nb & 7) == 0) + fprintf(stderr, "%d\n", j); n = N - j; jb = Mmin( n, nb ); /* * Release panel resources - re-initialize panel data structure diff -c -r hpl/src/pgesv/HPL_pdgesvK1.c ./HPL_pdgesvK1.c *** hpl/src/pgesv/HPL_pdgesvK1.c Tue Jan 13 19:51:40 2004 --- hpl/src/pgesv/HPL_pdgesvK1.c Tue Jan 13 20:03:56 2004 *************** *** 157,162 **** --- 157,164 ---- */ for( j = jstart; j < N; j += nb ) { + if (GRID->myrow == 0 && GRID->mycol == 0 && (j/nb & 7) == 0) + fprintf(stderr, "%d\n", j); n = N - j; jb = Mmin( n, nb ); /* * Allocate current panel resources - Finish latest update - Factor and diff -c -r hpl/src/pgesv/HPL_pdgesvK2.c ./HPL_pdgesvK2.c *** hpl/src/pgesv/HPL_pdgesvK2.c Tue Jan 13 19:51:40 2004 --- hpl/src/pgesv/HPL_pdgesvK2.c Tue Jan 13 20:04:00 2004 *************** *** 163,168 **** --- 163,170 ---- */ for( j = jstart; j < N; j += nb ) { + if (GRID->myrow == 0 && GRID->mycol == 0 && (j/nb & 7) == 0) + fprintf(stderr, "%d\n", j); n = N - j; jb = Mmin( n, nb ); /* * Initialize current panel - Finish latest update, Factor and broadcast