| !-------------------------------------------------------------------------! |
| ! ! |
| ! N A S P A R A L L E L B E N C H M A R K S 3.3 ! |
| ! ! |
| ! L U ! |
| ! ! |
| !-------------------------------------------------------------------------! |
| ! ! |
| ! This benchmark is part of the NAS Parallel Benchmark 3.3 suite. ! |
| ! It is described in NAS Technical Reports 95-020 and 02-007 ! |
| ! ! |
| ! Permission to use, copy, distribute and modify this software ! |
| ! for any purpose with or without fee is hereby granted. We ! |
| ! request, however, that all derived work reference the NAS ! |
| ! Parallel Benchmarks 3.3. This software is provided "as is" ! |
| ! without express or implied warranty. ! |
| ! ! |
| ! Information on NPB 3.3, including the technical report, the ! |
| ! original specifications, source code, results and information ! |
| ! on how to submit new results, is available at: ! |
| ! ! |
| ! http://www.nas.nasa.gov/Software/NPB/ ! |
| ! ! |
| ! Send comments or suggestions to npb@nas.nasa.gov ! |
| ! ! |
| ! NAS Parallel Benchmarks Group ! |
| ! NASA Ames Research Center ! |
| ! Mail Stop: T27A-1 ! |
| ! Moffett Field, CA 94035-1000 ! |
| ! ! |
| ! E-mail: npb@nas.nasa.gov ! |
| ! Fax: (650) 604-3957 ! |
| ! ! |
| !-------------------------------------------------------------------------! |
| |
| c--------------------------------------------------------------------- |
| c |
| c Authors: S. Weeratunga |
| c V. Venkatakrishnan |
| c E. Barszcz |
| c M. Yarrow |
| c |
| c--------------------------------------------------------------------- |
| |
| c--------------------------------------------------------------------- |
| program applu |
| c--------------------------------------------------------------------- |
| |
| c--------------------------------------------------------------------- |
| c |
| c driver for the performance evaluation of the solver for |
| c five coupled parabolic/elliptic partial differential equations. |
| c |
| c--------------------------------------------------------------------- |
| |
| implicit none |
| |
| include 'mpinpb.h' |
| include 'applu.incl' |
| character class |
| logical verified |
| double precision mflops, timer_read |
| integer i, ierr |
| double precision tsum(t_last+2), t1(t_last+2), |
| > tming(t_last+2), tmaxg(t_last+2) |
| character t_recs(t_last+2)*8 |
| |
| data t_recs/'total', 'rhs', 'blts', 'buts', 'jacld', 'jacu', |
| > 'exch', 'lcomm', 'ucomm', 'rcomm', |
| > ' totcomp', ' totcomm'/ |
| |
| c--------------------------------------------------------------------- |
| c initialize communications |
| c--------------------------------------------------------------------- |
| call init_comm() |
| |
| c--------------------------------------------------------------------- |
| c read input data |
| c--------------------------------------------------------------------- |
| call read_input() |
| |
| do i = 1, t_last |
| call timer_clear(i) |
| end do |
| |
| c--------------------------------------------------------------------- |
| c set up processor grid |
| c--------------------------------------------------------------------- |
| call proc_grid() |
| |
| c--------------------------------------------------------------------- |
| c determine the neighbors |
| c--------------------------------------------------------------------- |
| call neighbors() |
| |
| c--------------------------------------------------------------------- |
| c set up sub-domain sizes |
| c--------------------------------------------------------------------- |
| call subdomain() |
| |
| c--------------------------------------------------------------------- |
| c set up coefficients |
| c--------------------------------------------------------------------- |
| call setcoeff() |
| |
| c--------------------------------------------------------------------- |
| c set the boundary values for dependent variables |
| c--------------------------------------------------------------------- |
| call setbv() |
| |
| c--------------------------------------------------------------------- |
| c set the initial values for dependent variables |
| c--------------------------------------------------------------------- |
| call setiv() |
| |
| c--------------------------------------------------------------------- |
| c compute the forcing term based on prescribed exact solution |
| c--------------------------------------------------------------------- |
| call erhs() |
| |
| c--------------------------------------------------------------------- |
| c perform one SSOR iteration to touch all data and program pages |
| c--------------------------------------------------------------------- |
| call ssor(1) |
| |
| c--------------------------------------------------------------------- |
| c reset the boundary and initial values |
| c--------------------------------------------------------------------- |
| call setbv() |
| call setiv() |
| |
| c--------------------------------------------------------------------- |
| c perform the SSOR iterations |
| c--------------------------------------------------------------------- |
| call ssor(itmax) |
| |
| c--------------------------------------------------------------------- |
| c compute the solution error |
| c--------------------------------------------------------------------- |
| call error() |
| |
| c--------------------------------------------------------------------- |
| c compute the surface integral |
| c--------------------------------------------------------------------- |
| call pintgr() |
| |
| c--------------------------------------------------------------------- |
| c verification test |
| c--------------------------------------------------------------------- |
| IF (id.eq.0) THEN |
| call verify ( rsdnm, errnm, frc, class, verified ) |
| mflops = float(itmax)*(1984.77*float( nx0 ) |
| > *float( ny0 ) |
| > *float( nz0 ) |
| > -10923.3*(float( nx0+ny0+nz0 )/3.)**2 |
| > +27770.9* float( nx0+ny0+nz0 )/3. |
| > -144010.) |
| > / (maxtime*1000000.) |
| |
| call print_results('LU', class, nx0, |
| > ny0, nz0, itmax, nnodes_compiled, |
| > num, maxtime, mflops, ' floating point', verified, |
| > npbversion, compiletime, cs1, cs2, cs3, cs4, cs5, cs6, |
| > '(none)') |
| |
| END IF |
| |
| if (.not.timeron) goto 999 |
| |
| do i = 1, t_last |
| t1(i) = timer_read(i) |
| end do |
| t1(t_rhs) = t1(t_rhs) - t1(t_exch) |
| t1(t_last+2) = t1(t_lcomm)+t1(t_ucomm)+t1(t_rcomm)+t1(t_exch) |
| t1(t_last+1) = t1(t_total) - t1(t_last+2) |
| |
| call MPI_Reduce(t1, tsum, t_last+2, dp_type, MPI_SUM, |
| > 0, MPI_COMM_WORLD, ierr) |
| call MPI_Reduce(t1, tming, t_last+2, dp_type, MPI_MIN, |
| > 0, MPI_COMM_WORLD, ierr) |
| call MPI_Reduce(t1, tmaxg, t_last+2, dp_type, MPI_MAX, |
| > 0, MPI_COMM_WORLD, ierr) |
| |
| if (id .eq. 0) then |
| write(*, 800) num |
| do i = 1, t_last+2 |
| tsum(i) = tsum(i) / num |
| write(*, 810) i, t_recs(i), tming(i), tmaxg(i), tsum(i) |
| end do |
| endif |
| 800 format(' nprocs =', i6, 11x, 'minimum', 5x, 'maximum', |
| > 5x, 'average') |
| 810 format(' timer ', i2, '(', A8, ') :', 3(2x,f10.4)) |
| |
| 999 continue |
| call mpi_finalize(ierr) |
| end |
| |
| |
